/* ========================================
   Convio — Monochrome Minimal Theme
   Design: Pure Black & White, Border-only
   Font: RiiT_F
   ======================================== */

/* ---------- Custom Font ---------- */
@font-face {
    font-family: 'RiiTF';
    src: url('../fonts/RiiT_F.otf') format('opentype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

/* ---------- CSS Variables ---------- */
:root {
    --bg: #ffffff;
    --fg: #111111;
    --gray-100: #fafafa;
    --gray-200: #f0f0f0;
    --gray-300: #e0e0e0;
    --gray-400: #ccc;
    --gray-500: #999;
    --gray-600: #666;
    --gray-700: #444;
    --gray-800: #222;
    --border: #e0e0e0;
    --border-dark: #ccc;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-xs: 4px;
    --font: 'RiiTF', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
    --shadow-md: 0 4px 12px rgba(0,0,0,.06);
    --shadow-lg: 0 8px 30px rgba(0,0,0,.08);
    --transition: .2s ease;
    --transition-spring: .4s cubic-bezier(.175,.885,.32,1.275);
    --max-w: 1100px;
    --header-h: 56px;
    /* Accent — monochrome only */
    --accent: #111111;
    --accent-hover: #000000;
    --error: #dc2626;
    --error-light: #fef2f2;
    --success: #16a34a;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; cursor: inherit; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; scroll-behavior: smooth; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--fg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.7;
    overflow-x: hidden;
    cursor: url('/static/img/neko-cursor.png') 4 0, auto;
}
a { color: var(--fg); text-decoration: none; transition: opacity var(--transition); }
a:hover { opacity: .7; }
/* Override: specific interactive links manage their own hover */
.nav-link:hover, .footer-col a:hover, .sns-btn:hover,
.affiliate-link:hover, .logo:hover { opacity: 1; }
button { cursor: pointer; font-family: inherit; border: none; background: none; color: inherit; }
select, input { font-family: inherit; font-size: inherit; }
img { max-width: 100%; display: block; }

/* ---------- Background (subtle grid, no color orbs) ---------- */
.bg-grid {
    position: fixed; inset: 0; z-index: -2; pointer-events: none;
    background-image:
        linear-gradient(rgba(0,0,0,.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,.02) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse 80% 50% at 50% 0%, black 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 80% 50% at 50% 0%, black 20%, transparent 70%);
}

/* ---------- Utilities ---------- */
.hidden { display: none !important; }
.sr-only {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---------- Scroll Reveal ---------- */
.reveal {
    opacity: 0; transform: translateY(20px);
    transition: opacity .6s ease, transform .6s ease;
}
.reveal.revealed { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }

/* ---------- Animations ---------- */
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInScale { from { opacity: 0; transform: scale(.96); } to { opacity: 1; transform: scale(1); } }
@keyframes slideUp { from { transform: translateY(100%); } to { transform: translateY(0); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes modalIn { from { opacity: 0; transform: scale(.95) translateY(10px); } to { opacity: 1; transform: scale(1) translateY(0); } }
@keyframes modalBackdropIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes pulse-progress { 0%, 100% { opacity: 1; } 50% { opacity: .5; } }
@keyframes success-bounce {
    0% { transform: scale(1); } 25% { transform: scale(1.02); }
    50% { transform: scale(.99); } 100% { transform: scale(1); }
}
@keyframes shimmer {
    0% { background-position: -400px 0; }
    100% { background-position: 400px 0; }
}
@keyframes progressShimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(200%); }
}
@keyframes swipeDismiss {
    0%   { transform: translateX(0); opacity: 1; max-height: 120px; margin-bottom: 10px; padding: 16px; }
    40%  { transform: translateX(60px); opacity: .3; }
    100% { transform: translateX(120px); opacity: 0; max-height: 0; margin-bottom: 0; padding: 0 16px; overflow: hidden; }
}
@keyframes smoothExpand {
    from { opacity: 0; max-height: 0; margin-top: 0; padding-top: 0; padding-bottom: 0; }
    to   { opacity: 1; max-height: 200px; margin-top: 14px; padding-top: 16px; padding-bottom: 16px; }
}
@keyframes btnSuccessPulse {
    0%   { box-shadow: 0 0 0 0 rgba(22,163,74,.4); }
    70%  { box-shadow: 0 0 0 10px rgba(22,163,74,0); }
    100% { box-shadow: 0 0 0 0 rgba(22,163,74,0); }
}

.progress-pulse { animation: pulse-progress 1.5s ease-in-out infinite; }
.success-animation { animation: success-bounce .5s var(--transition-spring); }

/* ---------- Hover Lift ---------- */
.hover-lift { transition: transform var(--transition), box-shadow var(--transition); }
.hover-lift:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* ---------- Ripple Effect (click) ---------- */
.ripple-effect { position: relative; overflow: hidden; }
.ripple-effect .ripple {
    position: absolute; border-radius: 50%;
    background: rgba(0,0,0,.08);
    animation: ripple .5s ease-out forwards;
    pointer-events: none;
}
@keyframes ripple { 0% { transform: scale(0); opacity: .5; } 100% { transform: scale(2.5); opacity: 0; } }

/* ---------- Water Wave Hover (all clickable) ---------- */
.btn, .nav-link, .sns-btn, .hero-badge, .format-chip,
.affiliate-link, .format-select, .modal-close,
.logo, .footer-col a, .auth-switch a, .task-actions .btn-icon {
    position: relative;
    overflow: hidden;
}
.btn::before, .nav-link::before, .sns-btn::before, .hero-badge::before,
.format-chip::before, .affiliate-link::before,
.modal-close::before, .logo::before, .footer-col a::before,
.auth-switch a::before, .task-actions .btn-icon::before {
    content: "";
    position: absolute;
    z-index: 0;
    inset: 0;
    border-radius: inherit;
    background: rgba(0,0,0,.06);
    transform: scale(.95);
    opacity: 0;
    transition: none;
}
.btn:hover::before, .nav-link:hover::before, .sns-btn:hover::before,
.hero-badge:hover::before, .format-chip:hover::before,
.affiliate-link:hover::before,
.modal-close:hover::before, .logo:hover::before, .footer-col a:hover::before,
.auth-switch a:hover::before, .task-actions .btn-icon:hover::before {
    animation: waveExpand .5s ease-out forwards;
}
.btn:active::before, .nav-link:active::before, .sns-btn:active::before,
.hero-badge:active::before, .format-chip:active::before,
.affiliate-link:active::before,
.modal-close:active::before, .logo:active::before, .footer-col a:active::before,
.auth-switch a:active::before, .task-actions .btn-icon:active::before {
    animation: waveExpand .35s ease-out forwards;
    background: rgba(0,0,0,.1);
}
@keyframes waveExpand {
    0%   { transform: scale(0); opacity: .35; border-radius: 50%; }
    60%  { opacity: .12; }
    100% { transform: scale(1); opacity: 0; border-radius: inherit; }
}

/* ---------- Button Loading Spinner ---------- */
.btn.loading { pointer-events: none; }
.btn.loading .btn-text,
.btn.loading svg {
    visibility: hidden;
}
.btn.loading::after {
    content: "";
    position: absolute;
    width: 18px; height: 18px;
    top: 0; left: 0; right: 0; bottom: 0;
    margin: auto;
    border: 3px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin .7s ease infinite;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 400; font-size: .875rem;
    transition: all var(--transition);
    white-space: nowrap;
    /* position: relative & overflow: hidden inherited from wave hover block */
}
.btn-sm { padding: 6px 14px; font-size: .8rem; }
.btn-full { width: 100%; justify-content: center; }

.btn-primary,
.btn-accent {
    background: var(--accent);
    color: var(--bg);
    border: 1px solid var(--accent);
}
.btn-primary:hover,
.btn-accent:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    color: var(--bg);
}
.btn-primary:active, .btn-accent:active {
    transform: scale(0.97);
    transition: transform 0.1s cubic-bezier(0.4, 0, 0.2, 1);
}
.btn-primary:disabled, .btn-accent:disabled { opacity: .3; cursor: not-allowed; }

.btn-ghost { color: var(--gray-600); background: transparent; }
.btn-ghost:hover { color: var(--fg); background: var(--gray-200); }
.btn-ghost:active, .btn-outline:active, .btn-donate:active, .btn-google:active {
    transform: scale(0.97);
    transition: transform 0.1s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--fg);
}
.btn-outline:hover {
    border-color: var(--fg);
}

.btn-danger { color: var(--gray-500); }
.btn-danger:hover { color: var(--fg); }

/* .btn-accent = alias for .btn-primary */

.btn-donate {
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--border);
    font-weight: 400;
}
.btn-donate:hover {
    border-color: var(--fg);
}

.btn-google {
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--border);
}
.btn-google:hover {
    border-color: var(--fg);
}

.btn-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 36px; height: 36px; border-radius: var(--radius-xs);
    color: var(--gray-500); transition: all var(--transition);
}
.btn-icon:hover { color: var(--fg); }

/* ---------- Cookie Banner ---------- */
.cookie-banner {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 1000;
    background: var(--bg); border-top: 1px solid var(--border);
    padding: 14px 0;
    animation: slideUp .3s ease;
}
.cookie-inner {
    max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.cookie-inner p { font-size: .85rem; color: var(--gray-600); }
.cookie-inner a {
    color: var(--accent, #2563eb);
    text-decoration: underline;
    cursor: pointer;
    font-weight: 500;
}

/* ---------- Header ---------- */
.header {
    position: sticky; top: 0; z-index: 100;
    height: var(--header-h);
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    transition: box-shadow .3s ease;
}
.header.scrolled {
    box-shadow: 0 1px 20px rgba(0,0,0,.06);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom-color: rgba(0,0,0,.06);
}
.header-inner {
    max-width: var(--max-w); margin: 0 auto; height: 100%;
    padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between;
}
.logo {
    display: flex; align-items: center; gap: 8px;
    text-decoration: none; color: var(--fg);
}
.logo:hover { opacity: .7; }
.logo-icon { border-radius: 6px; }
.logo-text {
    font-size: 1.2rem; font-weight: 400;
    letter-spacing: .02em;
}

.nav { display: flex; align-items: center; gap: 2px; }
.nav-link {
    padding: 6px 12px; border-radius: var(--radius-xs);
    font-size: .85rem; color: var(--gray-600);
    transition: color var(--transition);
}
.nav-link:hover { color: var(--fg); opacity: 1; }
.nav-premium { font-weight: 400; background: none; border: none; cursor: pointer; color: inherit; font-size: inherit; padding: 0; }
.auth-nav { margin-left: 8px; }

/* ---------- Main ---------- */
.main {
    flex: 1; max-width: var(--max-w); width: 100%;
    margin: 0 auto; padding: 24px 24px 40px;
}
.main-grid {
    display: grid;
    grid-template-columns: 1fr 240px;
    gap: 40px;
    align-items: start;
}

/* ---------- Content Area ---------- */
.content-area { min-width: 0; }

/* ---------- Hero ---------- */
.hero {
    padding: 60px 0 40px;
    display: flex;
    align-items: flex-start;
    gap: 40px;
}
.hero-text { flex: 1; min-width: 0; }
.hero-visual {
    flex-shrink: 0;
    width: 320px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: space-between;
    align-self: stretch;
    position: relative;
    min-height: 220px;
}
/* --- 全形式ブロック（崩れアニメ） --- */
.neko-format-wall {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 6px;
    width: 100%;
    padding-top: 2px;
    margin-bottom: 12px;
}
.neko-format-block {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .6rem;
    font-family: var(--font-mono);
    letter-spacing: .02em;
    height: 24px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--gray-500);
    transform-origin: center bottom;
    animation: formatBlockCrumble 6s ease-in-out infinite;
}
@keyframes formatBlockCrumble {
    0%, 15%, 100% { transform: translateY(0) rotate(0deg); opacity: .95; }
    24% { transform: translateY(3px) rotate(-1.8deg); opacity: .88; }
    30% { transform: translateY(8px) rotate(1.6deg); opacity: .8; }
    38% { transform: translateY(2px) rotate(-.8deg); opacity: .9; }
    48% { transform: translateY(0) rotate(0deg); opacity: .95; }
}
/* --- 猫マスコット --- */
.neko-img {
    width: 100px;
    height: auto;
    display: block;
    position: absolute;
    right: 0;
    bottom: 0;
    filter: drop-shadow(0 2px 6px rgba(0,0,0,.10));
    animation: nekoFloat 3s ease-in-out infinite alternate;
    user-select: none;
}
@keyframes nekoFloat {
    0%   { transform: translateY(0); }
    100% { transform: translateY(-6px); }
}
/* --- 吹き出しもやもや --- */
.neko-bubble {
    position: absolute;
    background: var(--card-bg);
    border: 1.5px solid var(--border);
    border-radius: 18px;
    padding: 10px 18px;
    max-width: 290px;
    width: 100%;
    left: -76px;
    right: 60px;
    bottom: 78px;
    box-shadow: 0 4px 16px rgba(0,0,0,.08);
    transition: opacity .4s ease, transform .4s ease;
    animation: bubbleAppear .5s ease both;
    z-index: 2;
}
.neko-bubble-paws {
    position: absolute;
    left: -72px;
    right: 82px;
    bottom: 72px;
    height: 86px;
    pointer-events: none;
    z-index: 1;
}
.neko-bubble-paw {
    position: absolute;
    width: 20px;
    height: 20px;
    opacity: .2;
    filter: grayscale(1);
    animation: bubblePawFloat 2.8s ease-in-out infinite alternate;
}
.neko-bubble-paw:nth-child(1) { top: -8px; left: 8px; transform: rotate(-16deg); }
.neko-bubble-paw:nth-child(2) { top: 10px; right: 20px; transform: rotate(10deg); }
.neko-bubble-paw:nth-child(3) { top: 36px; left: -4px; transform: rotate(-8deg); }
.neko-bubble-paw:nth-child(4) { top: 46px; right: -2px; transform: rotate(14deg); }
.neko-bubble-paw:nth-child(5) { bottom: -4px; left: 52px; transform: rotate(-12deg); }
.neko-bubble-paw:nth-child(6) { bottom: 8px; right: 56px; transform: rotate(8deg); }
@keyframes bubblePawFloat {
    0% { opacity: .12; transform: translateY(0) scale(1); }
    100% { opacity: .28; transform: translateY(-4px) scale(1.05); }
}
.neko-bubble--fade {
    opacity: 0;
    transform: translateY(-4px) scale(.96);
}
.neko-bubble-text {
    font-size: .85rem;
    line-height: 1.5;
    color: var(--fg);
    display: block;
}
/* もやもやのしっぽ (小さい丸×2) */
.neko-bubble-tail {
    position: absolute;
    top: 62%;
    right: -14px;
}
.neko-bubble-tail::before,
.neko-bubble-tail::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1.5px solid var(--border);
}
.neko-bubble-tail::before {
    width: 12px;
    height: 12px;
    top: 0;
    right: 0;
}
.neko-bubble-tail::after {
    width: 7px;
    height: 7px;
    top: 8px;
    right: -10px;
}
.neko-mouth-puffs {
    position: absolute;
    right: 66px;
    bottom: 28px;
    width: 28px;
    height: 22px;
    pointer-events: none;
    z-index: 1;
}
.neko-mouth-puff {
    position: absolute;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--card-bg);
    opacity: 0;
    animation: mouthPuffFloat 2.2s ease-in-out infinite;
}
.neko-mouth-puff:nth-child(1) { right: 0; bottom: 0; }
.neko-mouth-puff:nth-child(2) { right: 8px; bottom: 6px; }
.neko-mouth-puff:nth-child(3) { right: 16px; bottom: 11px; }
@keyframes mouthPuffFloat {
    0% { transform: translate(0, 0) scale(.7); opacity: 0; }
    25% { opacity: .7; }
    100% { transform: translate(-20px, -20px) scale(1); opacity: 0; }
}
@keyframes bubbleAppear {
    0%   { opacity: 0; transform: translateY(8px) scale(.9); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
}
.hero-title {
    font-size: 2.8rem; font-weight: 400;
    letter-spacing: -.02em;
    line-height: 1.15;
    color: var(--fg);
    min-height: 1.15em; /* CLS 防止 */
}

/* ── Hero title letter animation ── */
.hero-title .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(18px);
    animation: charReveal .45s cubic-bezier(.22,1,.36,1) forwards;
}
@keyframes charReveal {
    to { opacity: 1; transform: translateY(0); }
}
/* 「カタチ」特殊演出: スケールバウンス + アクセント色 */
.hero-title .char-katachi {
    display: inline-block;
    opacity: 0;
    transform: translateY(22px) scale(.6);
    animation: katachiReveal .55s cubic-bezier(.22,1,.36,1) forwards;
    color: var(--accent);
    font-weight: 700;
}
@keyframes katachiReveal {
    0%   { opacity: 0; transform: translateY(22px) scale(.6); }
    60%  { opacity: 1; transform: translateY(-4px) scale(1.12); }
    100% { opacity: 1; transform: translateY(0) scale(1); color: var(--fg); font-weight: 400; }
}

/* 南京錠アイコン (select option 内) */
.lock-icon {
    vertical-align: middle;
    opacity: .7;
}

/* ── カスタム品質ドロップダウン ── */
.quality-dropdown {
    position: relative;
    width: 100%;
}
.quality-dropdown__trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    text-align: left;
}
.quality-dropdown__trigger .quality-lock-img {
    width: 14px; height: 14px;
    object-fit: contain;
    flex-shrink: 0;
}
.quality-dropdown__menu {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    left: 0; right: 0;
    margin: 0; padding: 4px 0;
    list-style: none;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: 0 8px 24px rgba(0,0,0,.12);
    z-index: 200;
    max-height: none;
    overflow-y: visible;
}
.quality-dropdown.open .quality-dropdown__menu {
    display: block;
}
.quality-dropdown__item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    font-size: .88rem;
    color: var(--fg);
    cursor: pointer;
    transition: background .15s;
}
.quality-dropdown__item:hover {
    background: var(--gray-100);
}
.quality-dropdown__item.selected {
    font-weight: 600;
    background: var(--gray-100);
}
.quality-dropdown__item.disabled {
    opacity: .5;
    cursor: not-allowed;
}
.quality-dropdown__item.disabled:hover {
    background: transparent;
}
.quality-dropdown__item .quality-lock-img {
    width: 14px; height: 14px;
    object-fit: contain;
    flex-shrink: 0;
}
.quality-dropdown__item .premium-badge {
    font-size: .7rem;
    color: var(--accent);
    font-weight: 600;
    margin-left: auto;
}
[data-theme="dark"] .quality-dropdown__menu {
    box-shadow: 0 8px 24px rgba(0,0,0,.35);
}
[data-theme="dark"] .quality-dropdown__item:hover {
    background: var(--gray-200);
}
[data-theme="dark"] .quality-dropdown__item.selected {
    background: var(--gray-200);
}
.hero-sub {
    margin-top: 16px;
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.8;
    animation: fadeIn .6s ease .2s both;
}

/* Hero badges — minimal pill style */
.hero-badges {
    display: flex; gap: 8px; flex-wrap: wrap;
    margin-top: 20px;
    animation: fadeIn .6s ease .3s both;
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 5px 12px;
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: .75rem;
    color: var(--gray-600);
    transition: all var(--transition);
}
.hero-badge:hover {
    border-color: var(--fg);
    color: var(--fg);
}
.hero-badge svg { flex-shrink: 0; }

/* ---------- Social Proof Counter ---------- */
.social-proof {
    display: flex; align-items: center; gap: 16px;
    margin-top: 24px;
    animation: fadeIn .6s ease .4s both;
}
.social-proof-item { text-align: center; }
.social-proof-num {
    display: block;
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--fg);
    letter-spacing: -.02em;
    font-family: var(--font-mono);
}
.social-proof-label {
    font-size: .68rem;
    color: var(--gray-500);
    letter-spacing: .04em;
}
.social-proof-dot {
    width: 3px; height: 3px;
    border-radius: 50%;
    background: var(--gray-400);
    flex-shrink: 0;
}

/* ---------- URL Input ---------- */
.input-section { margin-bottom: 24px; }
.url-input-wrap {
    display: flex; align-items: center;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 4px;
    transition: border-color .3s ease;
}
.url-input-wrap:hover { border-color: var(--gray-400); }
.url-input-wrap:focus-within {
    border-color: var(--fg);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, .08);
}
.url-input {
    flex: 1; padding: 12px 16px;
    background: transparent; border: none;
    color: var(--fg); font-size: .95rem;
    outline: none;
}
.url-input::placeholder { color: var(--gray-500); }

/* ---------- Spinner ---------- */
.spinner {
    width: 16px; height: 16px;
    border: 2px solid var(--gray-300);
    border-top-color: var(--fg);
    border-radius: 50%;
    animation: spin .6s linear infinite;
}

/* ---------- Video Info ---------- */
.video-info {
    display: flex; gap: 14px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    animation: smoothExpand .4s cubic-bezier(.4, 0, .2, 1) forwards;
    transition: border-color var(--transition);
    overflow: hidden;
}
.skeleton-loader {
    animation: smoothExpand .3s cubic-bezier(.4, 0, .2, 1) forwards;
    overflow: hidden;
    display: flex; gap: 14px;
    margin-top: 14px; padding: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.video-info:hover { border-color: var(--gray-400); }
.info-thumb {
    width: 110px; height: 62px;
    object-fit: cover; border-radius: var(--radius-sm);
    flex-shrink: 0;
}
.info-meta { min-width: 0; }
.info-title {
    font-size: .88rem;
    color: var(--fg);
    overflow: hidden; text-overflow: ellipsis;
    display: -webkit-box; -webkit-line-clamp: 2; line-clamp: 2; -webkit-box-orient: vertical;
}
.info-detail {
    margin-top: 4px;
    font-size: .78rem; color: var(--gray-500);
}

/* ---------- Skeleton Screen (video info loading) ---------- */
.skeleton-thumb {
    width: 110px; height: 62px;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 400% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
}
.skeleton-meta { flex: 1; display: flex; flex-direction: column; gap: 8px; }
.skeleton-line {
    height: 12px;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 400% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
}
.skeleton-line:nth-child(1) { width: 80%; }
.skeleton-line:nth-child(2) { width: 50%; height: 10px; }

/* ---------- Quick Format Chips ---------- */
.quick-formats {
    display: flex; gap: 6px; flex-wrap: wrap;
    margin-bottom: 10px;
    position: relative;
}
/* Sliding indicator (absolute pill behind active chip) */
.quick-format-indicator {
    position: absolute;
    background: var(--accent);
    border-radius: 100px;
    transition: left .35s cubic-bezier(.4, 0, .2, 1),
                width .25s cubic-bezier(.4, 0, .2, 1),
                top .35s cubic-bezier(.4, 0, .2, 1);
    z-index: 0;
    pointer-events: none;
}
.quick-format-chip {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 6px 16px;
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: .78rem;
    color: var(--gray-600);
    background: transparent;
    cursor: pointer;
    transition: color .25s ease, border-color .25s ease;
    letter-spacing: .02em;
    position: relative;
    z-index: 1;
}
.quick-format-chip:hover {
    border-color: var(--fg);
    color: var(--fg);
}
.quick-format-chip.active {
    border-color: var(--accent);
    color: var(--bg);
}
.quick-format-chip:active {
    transform: scale(0.95);
}

/* ---------- Convert Section ---------- */
.convert-section { margin-bottom: 20px; }
.format-row {
    display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
    margin-bottom: 14px;
}
.format-label {
    display: block; margin-bottom: 6px;
    font-size: .78rem; color: var(--gray-600);
    letter-spacing: .02em;
}
.format-select {
    width: 100%; padding: 10px 14px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--fg); font-size: .88rem;
    outline: none; cursor: pointer;
    transition: border-color var(--transition);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}
.format-select:hover { border-color: var(--gray-400); }
.format-select:focus {
    border-color: var(--fg);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, .08);
}
.format-select option { background: var(--bg); color: var(--fg); }
.format-select optgroup { font-weight: 700; color: var(--fg); }

.btn-convert {
    width: 100%; justify-content: center;
    padding: 16px; font-size: .95rem;
    border-radius: var(--radius);
    letter-spacing: .02em;
    transition: all .3s ease;
}
.btn-convert svg { transition: transform var(--transition); }
.btn-convert:hover svg { transform: translateY(2px); }
.btn-convert:active {
    transform: scale(0.97);
    transition: transform 0.1s cubic-bezier(0.4, 0, 0.2, 1);
}
/* Success transform state */
.btn-convert.btn-success {
    background: var(--success) !important;
    border-color: var(--success) !important;
    color: var(--bg) !important;
    animation: btnSuccessPulse .6s ease;
    pointer-events: none;
}
.btn-convert.btn-success svg { display: none; }
.btn-convert.btn-success .btn-text { visibility: visible; }

.size-prompt {
    margin-top: 10px; padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: .82rem; color: var(--gray-600);
    text-align: center;
    animation: fadeIn .3s ease;
}
.size-prompt a, .size-prompt .link-btn { color: var(--fg); text-decoration: underline; }
.link-btn {
    background: none; border: none; padding: 0;
    font: inherit; color: inherit; cursor: pointer;
    text-decoration: underline;
}

/* ---------- Task Section ---------- */
.task-section {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
    animation: fadeIn .4s ease;
}
.section-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 14px;
}
.section-header h2 {
    font-size: 1.3rem; font-weight: 400;
    color: var(--fg);
}
.section-actions { display: flex; gap: 6px; }

/* Task Card — border only */
.task-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 10px;
    animation: fadeIn .3s ease;
    transition: border-color var(--transition), transform .3s ease, opacity .3s ease,
                max-height .4s ease, margin-bottom .4s ease, padding .4s ease;
    position: relative;
}
.task-card:hover { border-color: var(--gray-400); }
.task-card.completed { border-color: var(--success); }
/* Swipe-dismiss animation */
.task-card.dismissing {
    animation: swipeDismiss .45s cubic-bezier(.4, 0, .2, 1) forwards;
    pointer-events: none;
}

.task-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 8px;
}
.task-title {
    font-size: .85rem;
    color: var(--fg);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    flex: 1; margin-right: 12px;
}
.task-format {
    font-size: .68rem; font-weight: 400;
    padding: 2px 10px; border-radius: 100px;
    border: 1px solid var(--border);
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: .05em;
}
.task-progress-bar {
    height: 3px; border-radius: 3px;
    background: var(--gray-200); overflow: hidden;
}
.task-progress-fill {
    height: 100%; border-radius: 3px;
    background: var(--accent);
    transition: width .4s ease;
    position: relative;
    overflow: hidden;
}
/* Active shimmer on in-progress bars */
.task-progress-fill.active::after {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 50%; height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255,255,255,.45) 50%,
        transparent 100%
    );
    animation: progressShimmer 1.8s ease-in-out infinite;
}
.task-footer {
    display: flex; align-items: center; justify-content: space-between;
    margin-top: 8px;
}
.task-status { font-size: .75rem; color: var(--gray-500); }
.task-status.completed { color: var(--fg); }
.task-status.failed { color: var(--gray-500); }
.task-actions { display: flex; gap: 6px; }
.task-actions .btn { font-size: .75rem; padding: 4px 10px; }
.task-actions .btn-icon { width: 30px; height: 30px; }
.task-actions .btn-icon:hover { color: var(--fg); }

/* ---------- How to Use Section ---------- */
.howto-section {
    margin-top: 56px;
    padding-top: 48px;
    border-top: 1px solid var(--border);
}
.howto-title {
    font-size: 1.6rem;
    font-weight: 400;
    color: var(--fg);
    margin-bottom: 8px;
}
.howto-subtitle {
    font-size: .9rem;
    color: var(--gray-500);
    margin-bottom: 36px;
}
.howto-steps {
    display: flex;
    flex-direction: column;
    gap: 40px;
}
.howto-step {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: center;
    cursor: url('/static/img/neko-cursor.png') 4 0, auto;
}
.howto-step:nth-child(even) .howto-step-visual { order: -1; }
.howto-step-number {
    font-size: .7rem;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--gray-500);
    margin-bottom: 8px;
}
.howto-step-heading {
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--fg);
    margin-bottom: 8px;
    line-height: 1.4;
}
.howto-step-desc {
    font-size: .85rem;
    color: var(--gray-600);
    line-height: 1.7;
}
.howto-step-visual {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 16 / 10;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    transition: border-color var(--transition);
}
.howto-step:hover .howto-step-visual { border-color: var(--gray-400); }
.howto-step-visual img,
.howto-step-visual video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ---------- Mini UI inside howto steps ---------- */
.mini-ui {
    width: 100%; height: 100%;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    padding: 20px 16px;
    position: relative;
    user-select: none;
}
.mini-ui--select {
    justify-content: flex-start;
    padding-top: 30px;
}

/* --- Step 1: Paste URL --- */
.mini-input-wrap {
    position: relative;
    display: flex; align-items: center;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 3px;
    width: 90%;
    max-width: 260px;
    background: var(--bg);
}
.mini-input {
    flex: 1;
    padding: 6px 10px;
    font-size: .6rem;
    color: var(--fg);
    white-space: nowrap;
    overflow: hidden;
    display: flex; align-items: center;
}
.mini-input-text {
    font-family: var(--font-mono);
    font-size: .55rem;
    letter-spacing: -.01em;
}
.mini-cursor {
    display: inline-block;
    width: 1px; height: 12px;
    background: var(--fg);
    animation: cursorBlink .8s step-end infinite;
    flex-shrink: 0;
}
@keyframes cursorBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}
.mini-paste-icon {
    display: flex; align-items: center; justify-content: center;
    width: 24px; height: 24px;
    color: var(--gray-500);
    flex-shrink: 0;
}
.mini-placeholder-text {
    position: absolute;
    top: 50%; left: 14px;
    transform: translateY(-50%);
    margin-top: 0;
    font-size: .5rem;
    color: var(--gray-400);
    letter-spacing: .02em;
    pointer-events: none;
    transition: opacity .2s ease;
    z-index: 0;
}

/* --- Step 2: Select format --- */
.mini-select-row {
    display: flex; gap: 8px;
    width: 90%; max-width: 260px;
}
.mini-select-group {
    flex: 1;
    position: relative;
}
.mini-select-label {
    display: block;
    font-size: .45rem;
    color: var(--gray-500);
    margin-bottom: 3px;
    letter-spacing: .04em;
}
.mini-select {
    display: flex; align-items: center; justify-content: space-between;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 5px 8px;
    font-size: .55rem;
    color: var(--fg);
    background: var(--bg);
    transition: border-color var(--transition);
}
.mini-select.active {
    border-color: var(--fg);
}

/* Mini dropdown list (Step 2) */
.mini-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 2px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height .35s ease, opacity .2s ease;
    z-index: 10;
    box-shadow: var(--shadow-md);
}
.mini-dropdown.open {
    max-height: 200px;
    opacity: 1;
    overflow-y: auto;
}
.mini-dropdown-item {
    padding: 4px 8px;
    font-size: .5rem;
    color: var(--gray-600);
    transition: background .15s ease, color .15s ease;
    white-space: nowrap;
}
.mini-dropdown-item.hover {
    background: var(--gray-100);
    color: var(--fg);
}
.mini-dropdown-item.selected {
    background: var(--fg);
    color: var(--bg);
}

/* Pointer cursor for step 2 & 3 — uses custom cursor image */
.mini-cursor--pointer {
    position: absolute;
    width: 18px; height: 24px;
    background: url('data:image/svg+xml,%3Csvg xmlns=%22http://www.w3.org/2000/svg%22 width=%2218%22 height=%2224%22 viewBox=%220 0 18 24%22%3E%3Cpath d=%22M1 1l5 16 3-5 7 0z%22 fill=%22%23111%22 stroke=%22%23fff%22 stroke-width=%221%22/%3E%3C/svg%3E') no-repeat center / contain;
    animation: none;
    pointer-events: none;
    z-index: 20;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,.15));
    transition: left .4s ease, top .4s ease;
}

/* --- Step 3: Convert & download --- */
.mini-btn-convert {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 7px 18px;
    background: var(--fg);
    color: var(--bg);
    border: 1px solid var(--fg);
    border-radius: 6px;
    font-size: .55rem;
    font-weight: 400;
    letter-spacing: .02em;
    transition: all var(--transition);
    position: relative;
}
.mini-btn-convert.clicked {
    background: transparent;
    color: var(--fg);
}
.mini-progress-wrap {
    display: none;
    align-items: center; gap: 6px;
    margin-top: 8px;
    width: 70%; max-width: 200px;
}
.mini-progress-wrap.visible {
    display: flex;
}
.mini-progress-bar {
    flex: 1; height: 3px;
    background: var(--gray-200);
    border-radius: 3px;
    overflow: hidden;
}
.mini-progress-fill {
    height: 100%;
    background: var(--fg);
    border-radius: 3px;
    width: 0%;
    transition: width .3s ease;
}
.mini-progress-text {
    font-size: .5rem;
    color: var(--gray-500);
    font-family: var(--font-mono);
    min-width: 22px;
    text-align: right;
}

/* Supported formats grid */
.formats-section {
    margin-top: 48px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}
.formats-title {
    font-size: 1.1rem;
    font-weight: 400;
    margin-bottom: 20px;
}
.formats-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    list-style: none;
    padding: 0;
    margin: 0;
}
.format-chip {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: .78rem;
    color: var(--gray-600);
    letter-spacing: .03em;
    text-transform: uppercase;
    transition: all var(--transition);
}
.format-chip:hover {
    border-color: var(--fg);
    color: var(--fg);
}
.format-chip-video { border-style: dashed; }

/* ---------- Sidebar ---------- */
.sidebar { position: sticky; top: calc(var(--header-h) + 24px); }

.ad-slot { margin-bottom: 16px; }
.ad-placeholder {
    width: 100%; height: 250px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    color: var(--gray-400);
    font-size: .75rem;
    letter-spacing: .1em;
}

/* Sidebar card — border only */
.sidebar-card {
    border: 1px solid var(--border);
    padding: 24px 18px;
    margin-bottom: 16px;
    border-radius: var(--radius);
    transition: border-color var(--transition);
    background: transparent;
    color: var(--fg);
}
.sidebar-card:hover { border-color: var(--gray-400); }

.donate-text {
    font-size: .9rem;
    color: var(--fg);
    margin-bottom: 14px;
}
.donate-card .btn-donate {
    width: 100%;
    justify-content: center;
    box-sizing: border-box;
    font-size: .78rem;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ---------- Premium Card (sidebar) — border only ---------- */
.premium-card {
    text-align: center;
    border: 1px solid var(--accent);
}
.premium-badge {
    display: inline-block;
    font-size: .68rem;
    letter-spacing: .12em; text-transform: uppercase;
    border: 1px solid var(--accent);
    color: var(--accent);
    padding: 4px 14px;
    border-radius: 100px;
    margin-bottom: 12px;
}
.premium-desc {
    font-size: .82rem; color: var(--gray-600);
    margin-bottom: 16px; line-height: 1.6;
}

/* ---------- Affiliate Card (sidebar) ---------- */
.affiliate-card {
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--border);
    padding: 18px;
}
.affiliate-label {
    font-size: .72rem;
    letter-spacing: .1em; text-transform: uppercase;
    color: var(--gray-500);
    margin-bottom: 10px;
}
.affiliate-link {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    text-decoration: none;
    color: var(--fg);
    transition: border-color var(--transition);
}
.affiliate-link:last-child { margin-bottom: 0; }
.affiliate-link:hover { border-color: var(--fg); opacity: 1; }
.affiliate-tag {
    font-size: .62rem;
    color: var(--gray-600);
    border: 1px solid var(--border);
    padding: 2px 8px;
    border-radius: 100px;
    white-space: nowrap;
}
.affiliate-title {
    font-size: .82rem; flex: 1; margin: 0 10px;
    overflow: hidden; text-overflow: ellipsis;
    display: -webkit-box; -webkit-line-clamp: 2; line-clamp: 2; -webkit-box-orient: vertical;
    word-break: break-word;
}
.affiliate-arrow {
    font-size: .82rem; color: var(--gray-500);
    transition: transform var(--transition);
}
.affiliate-link:hover .affiliate-arrow { transform: translateX(3px); color: var(--fg); }

/* ---------- Amazon Product Card ---------- */
.amazon-product-link {
    display: block;
    text-decoration: none;
    color: var(--fg);
    margin-bottom: 8px;
}
.amazon-product-link:last-child {
    margin-bottom: 0;
}
.amazon-product-card {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition), box-shadow var(--transition);
}
.amazon-product-card:hover {
    border-color: #ff9900;
    box-shadow: 0 2px 8px rgba(255, 153, 0, .15);
}
.amazon-badge {
    display: inline-block;
    font-size: .6rem;
    font-weight: 700;
    color: #fff;
    background: #ff9900;
    padding: 1px 7px;
    border-radius: 100px;
    letter-spacing: .04em;
    margin-bottom: 5px;
}
.amazon-product-name {
    font-size: .82rem;
    font-weight: 600;
    margin: 0 0 3px;
    color: var(--fg);
}
.amazon-product-text {
    font-size: .72rem;
    line-height: 1.4;
    margin: 0 0 6px;
    color: var(--gray-500);
}
.amazon-cta {
    font-size: .72rem;
    font-weight: 600;
    color: #ff9900;
    transition: color var(--transition);
}
.amazon-product-card:hover .amazon-cta {
    color: #e68a00;
}

/* ---------- Premium Nav ---------- */
.nav-premium { position: relative; }

/* ---------- Premium Modal ---------- */
.modal-content.modal-wide {
    max-width: min(1060px, 92vw);
    max-height: 90vh;
    overflow-y: auto;
    padding: 48px 60px;
}
.premium-modal-title {
    font-size: 1.4rem; font-weight: 400;
    text-align: center;
    margin-bottom: 32px;
    color: var(--fg);
}
.plans-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.plan-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 32px;
    position: relative;
    display: flex; flex-direction: column;
    transition: border-color var(--transition);
    min-width: 0;
    overflow: visible;
}
.plan-card:hover { border-color: var(--gray-400); }
.plan-card h3 {
    font-size: 1rem; font-weight: 400;
    margin-bottom: 6px;
    color: var(--fg);
}
.plan-card-premium {
    border-color: var(--accent);
}
.plan-card-enterprise {
    border-style: dashed;
}
.plan-card-enterprise .plan-price {
    font-size: 1.4rem;
    color: var(--gray-600);
}
.plan-ribbon {
    position: absolute; top: -12px; right: 18px;
    background: var(--accent);
    color: var(--bg);
    font-size: .65rem;
    padding: 4px 14px;
    border-radius: 100px;
    letter-spacing: .05em;
    z-index: 1;
    white-space: nowrap;
}
.plan-price {
    font-size: 2.2rem; font-weight: 400;
    color: var(--fg);
    margin-bottom: 20px;
}
.plan-period {
    font-size: .8rem;
    color: var(--gray-500);
}
.plan-features {
    list-style: none;
    margin-bottom: 20px;
    flex: 1;
}
.plan-features li {
    padding: 7px 0;
    font-size: .85rem;
    color: var(--fg);
    border-bottom: 1px solid var(--gray-200);
    display: flex; align-items: center; gap: 6px;
}
.plan-features li:last-child { border-bottom: none; }

/* ---------- Billing Toggle (Segmented Control) ---------- */
.billing-toggle {
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 32px;
}
.billing-seg {
    position: relative;
    display: inline-grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    background: #1a1a2e;
    border-radius: 100px;
    padding: 4px;
    gap: 0;
    min-width: 320px;
}
.billing-seg-highlight {
    position: absolute;
    top: 4px; left: 4px;
    height: calc(100% - 8px);
    width: calc(50% - 4px);
    border-radius: 100px;
    background: #fff;
    box-shadow: 0 1px 6px rgba(0,0,0,.12);
    transition: transform .35s cubic-bezier(.4, 0, .2, 1);
    z-index: 0;
}
.billing-seg[data-billing="yearly"] .billing-seg-highlight {
    transform: translateX(100%);
}
.billing-seg-btn {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    font-family: var(--font);
    font-size: .85rem;
    font-weight: 600;
    padding: 8px 14px;
    border-radius: 100px;
    cursor: pointer;
    color: rgba(255,255,255,.65);
    transition: color .3s ease;
    white-space: nowrap;
    user-select: none;
}
.billing-seg-btn.active {
    color: #1a1a2e;
}
.billing-seg-save {
    font-size: .75rem;
    font-weight: 700;
    color: #22c55e;
}
.billing-seg-btn.active .billing-seg-save {
    color: #16a34a;
}

/* ---------- Price Animation ---------- */
.price-amount {
    display: inline-block;
    position: relative;
}
.price-num {
    display: inline-block;
    transition: none;
}

.plan-price-sub {
    font-size: .75rem;
    color: var(--gray-500);
    margin-top: -14px;
    margin-bottom: 16px;
    min-height: 1.2em;
    transition: opacity .3s ease;
}

/* ---------- Theme Transition ---------- */
html.theme-transitioning,
html.theme-transitioning *,
html.theme-transitioning *::before,
html.theme-transitioning *::after {
    transition: background-color .5s ease,
                color .5s ease,
                border-color .5s ease,
                box-shadow .5s ease,
                fill .5s ease,
                stroke .5s ease !important;
}

/* ---------- Footer ---------- */
.footer {
    border-top: 1px solid var(--border);
    padding: 48px 0 24px;
    margin-top: auto;
}
.footer-inner {
    max-width: var(--max-w); margin: 0 auto;
    padding: 0 24px;
}
.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    margin-bottom: 32px;
}
.footer-col h3, .footer-col h4 {
    font-size: .75rem;
    color: var(--fg);
    margin-bottom: 14px;
    letter-spacing: .02em;
}
.footer-col a {
    display: block;
    font-size: .82rem; color: var(--gray-500);
    padding: 4px 0;
    transition: color var(--transition);
}
.footer-col a:hover { color: var(--fg); opacity: 1; }

/* SNS share buttons — icon only, no background */
.sns-share-label {
    font-size: .75rem;
    color: var(--fg);
    margin-bottom: 6px;
    margin-top: 20px;
    letter-spacing: .02em;
}
.sns-buttons {
    display: flex; flex-wrap: wrap; gap: 4px;
}
.sns-btn {
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; height: 32px;
    border-radius: var(--radius-xs);
    border: none;
    background: none;
    color: var(--gray-500);
    transition: all var(--transition);
    text-decoration: none;
    padding: 0;
}
.sns-btn:hover { color: var(--fg); opacity: 1; }
.sns-btn svg { width: 16px; height: 16px; }

.footer-bottom {
    display: flex; align-items: center; justify-content: space-between;
    font-size: .8rem; color: var(--gray-500);
    padding-top: 20px;
    border-top: 1px solid var(--border);
}
.footer-tagline {
    font-style: italic;
    color: var(--gray-500);
}

/* ---------- Status Indicator ---------- */
.status-indicator {
    position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
    z-index: 999;
    pointer-events: none;
    transition: opacity .4s ease, transform .4s ease;
}
.status-indicator.hidden {
    opacity: 0;
    transform: translateX(-50%) translateY(8px);
}
.status-indicator.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}
.status-indicator-inner {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px;
    border-radius: 100px;
    background: var(--fg);
    color: var(--bg);
    font-size: .8rem;
    font-weight: 500;
    box-shadow: 0 4px 20px rgba(0,0,0,.15);
    backdrop-filter: blur(8px);
    white-space: nowrap;
}
.status-indicator-icon {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--success);
    flex-shrink: 0;
    animation: statusPulse 1.5s ease infinite;
}
.status-indicator.status-error .status-indicator-icon {
    background: var(--error);
    animation: none;
}
.status-indicator.status-info .status-indicator-icon {
    background: var(--gray-400);
    animation: none;
}
@keyframes statusPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: .5; transform: scale(.7); }
}

/* ---------- Modal ---------- */
.modal {
    position: fixed; inset: 0; z-index: 200;
    display: flex; align-items: center; justify-content: center;
}
.modal-backdrop {
    position: absolute; inset: 0;
    background: rgba(0,0,0,.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    animation: modalBackdropIn .3s ease;
}
.modal-content {
    position: relative;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    width: 100%; max-width: 400px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalIn .3s ease;
    box-shadow: var(--shadow-lg);
}
.modal-close {
    position: absolute; top: 12px; right: 16px;
    font-size: 1.4rem; color: var(--gray-500);
    line-height: 1; transition: color var(--transition);
    width: 30px; height: 30px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-xs);
}
.modal-close:hover { color: var(--fg); }

.auth-form h2 {
    font-size: 1.2rem; font-weight: 400;
    color: var(--fg);
    margin-bottom: 20px;
}
.form-input {
    width: 100%; padding: 12px 14px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--fg); font-size: .88rem;
    outline: none;
    margin-bottom: 12px;
    transition: border-color var(--transition);
}
.form-input:focus {
    border-color: var(--fg);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, .08);
}
.form-input::placeholder { color: var(--gray-500); }

/* ---------- Contact Select ---------- */
.contact-select {
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}
.contact-select option { background: var(--bg); color: var(--fg); }

/* ---------- Password Toggle ---------- */
.password-wrap {
    position: relative;
}
.password-wrap .form-input {
    padding-right: 44px;
}
.password-toggle {
    position: absolute;
    right: 10px; top: 50%;
    transform: translateY(calc(-50% - 6px));
    background: none; border: none;
    cursor: pointer; padding: 4px;
    color: var(--gray-500);
    line-height: 0;
    transition: color .2s ease;
}
.password-toggle:hover { color: var(--fg); }
.password-toggle .hidden { display: none; }

.auth-divider {
    display: flex; align-items: center; gap: 12px;
    margin: 16px 0;
    color: var(--gray-500); font-size: .78rem;
}
.auth-divider::before, .auth-divider::after {
    content: ""; flex: 1; height: 1px;
    background: var(--border);
}
.auth-switch {
    margin-top: 16px;
    font-size: .82rem; color: var(--gray-500);
    text-align: center;
}
.auth-switch a { color: var(--fg); text-decoration: underline; }

.auth-forgot {
    margin-top: 8px;
    font-size: .8rem;
    text-align: right;
}
.auth-forgot a { color: var(--gray-500); text-decoration: none; }
.auth-forgot a:hover { color: var(--primary); text-decoration: underline; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
    .main-grid { grid-template-columns: 1fr; }
    .sidebar {
        position: static;
        display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
    }
    .sidebar-card { margin-bottom: 0; }
    .hero-title { font-size: 2rem; }
    .hero { padding: 40px 0 28px; }
    .hero-visual { width: 230px; min-height: 180px; }
    .neko-img { width: 80px; }
    .neko-bubble { max-width: 220px; left: -64px; right: 45px; bottom: 60px; padding: 8px 12px; }
    .neko-bubble-paws { left: -60px; right: 58px; bottom: 54px; height: 72px; }
    .neko-bubble-paw { width: 16px; height: 16px; }
    .neko-bubble-text { font-size: .78rem; }
    .neko-format-wall { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 5px; }
    .neko-format-block { font-size: .56rem; height: 20px; }
    .neko-mouth-puffs { right: 54px; bottom: 22px; }
    .footer-links { grid-template-columns: repeat(2, 1fr); }
    .howto-step { grid-template-columns: 1fr; gap: 16px; }
    .howto-step:nth-child(even) .howto-step-visual { order: 0; }
    .formats-grid { grid-template-columns: repeat(3, 1fr); }
    .plans-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
    .main { padding: 12px 16px 32px; }
    .header-inner { padding: 0 16px; }
    .format-row { grid-template-columns: 1fr; }
    .sidebar { grid-template-columns: 1fr; }
    .footer-links { grid-template-columns: 1fr; gap: 20px; }
    .cookie-inner { flex-direction: column; text-align: center; gap: 8px; }
    .social-proof { gap: 12px; }
    .social-proof-num { font-size: 1.2rem; }
    .hero-title { font-size: 1.6rem; }
    .hero { padding: 28px 0 20px; }
    .hero-visual { display: none; }
    .neko-bubble, .neko-bubble-paws, .neko-img, .neko-format-wall, .neko-mouth-puffs { display: none; }
    .plans-grid { grid-template-columns: 1fr; }
    .modal-wide { max-width: 95vw; padding: 24px 20px; }
    .billing-seg { min-width: 280px; }
    .billing-seg-btn { font-size: .78rem; padding: 7px 14px; }
    .billing-seg-save { font-size: .68rem; }
    .formats-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Focus Visible (Keyboard Accessibility) ---------- */
:focus-visible {
    outline: 2px solid var(--fg);
    outline-offset: 2px;
}
.btn:focus-visible, .format-select:focus-visible,
.form-input:focus-visible {
    outline: 2px solid var(--fg);
    outline-offset: 2px;
    border-color: var(--fg);
}
/* url-input は wrap 側で focus-within 対応済み — 二重枠を防止 */
.url-input:focus-visible {
    outline: none;
}
.sns-btn:focus-visible, .nav-link:focus-visible,
.footer-col a:focus-visible, .modal-close:focus-visible {
    outline: 2px solid var(--fg);
    outline-offset: 2px;
}
/* Skip to content link */
.skip-link {
    position: absolute; top: -100%; left: 16px;
    background: var(--fg); color: var(--bg);
    padding: 8px 16px; border-radius: var(--radius-sm);
    font-size: .85rem; z-index: 9999;
    transition: top .2s ease;
}
.skip-link:focus {
    top: 8px; outline: none;
}

/* ---------- Custom Tooltip ---------- */
[data-tooltip] {
    position: relative;
}
[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    padding: 6px 12px;
    background: var(--fg);
    color: var(--bg);
    font-size: .72rem;
    border-radius: var(--radius-xs);
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity .2s ease, transform .2s ease;
    z-index: 50;
    box-shadow: var(--shadow-md);
    line-height: 1.5;
}
[data-tooltip]:hover::after {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ---------- Dark Mode (manual toggle) ---------- */
[data-theme="dark"] {
    --bg: #111111;
    --fg: #e8e8e8;
    --accent: #e8e8e8;
    --accent-hover: #ffffff;
    --gray-100: #1a1a1a;
    --gray-200: #222222;
    --gray-300: #333333;
    --gray-400: #555555;
    --gray-500: #888888;
    --gray-600: #aaaaaa;
    --gray-700: #cccccc;
    --gray-800: #e0e0e0;
    --border: #2a2a2a;
    --border-dark: #444;
    --shadow-md: 0 4px 12px rgba(0,0,0,.3);
    --shadow-lg: 0 8px 30px rgba(0,0,0,.4);
    --error-light: #2d1515;
    color-scheme: dark;
}
[data-theme="dark"] body { color-scheme: dark; }
[data-theme="dark"] .header {
    background: rgba(17,17,17,.85);
    border-bottom-color: var(--border);
}
[data-theme="dark"] .header.scrolled {
    box-shadow: 0 1px 16px rgba(0,0,0,.3);
    border-bottom-color: rgba(255,255,255,.06);
}
[data-theme="dark"] .bg-grid {
    background-image:
        linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
}
[data-theme="dark"] .cookie-banner { background: var(--bg); }
[data-theme="dark"] .format-select option { background: var(--bg); color: var(--fg); }
[data-theme="dark"] .contact-select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); }
[data-theme="dark"] .contact-select option { background: var(--bg); color: var(--fg); }
[data-theme="dark"] .format-select optgroup { color: var(--gray-600); }
[data-theme="dark"] .modal-backdrop { background: rgba(0,0,0,.6); }
[data-theme="dark"] .modal-content { background: var(--bg); }
[data-theme="dark"] .howto-step-visual { background: var(--gray-100); }
[data-theme="dark"] .skeleton-thumb,
[data-theme="dark"] .skeleton-line {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-300) 50%, var(--gray-200) 75%);
    background-size: 400% 100%;
}
[data-theme="dark"] .btn::before, [data-theme="dark"] .nav-link::before,
[data-theme="dark"] .sns-btn::before, [data-theme="dark"] .hero-badge::before,
[data-theme="dark"] .format-chip::before, [data-theme="dark"] .affiliate-link::before,
[data-theme="dark"] .modal-close::before, [data-theme="dark"] .logo::before,
[data-theme="dark"] .footer-col a::before, [data-theme="dark"] .auth-switch a::before,
[data-theme="dark"] .task-actions .btn-icon::before {
    background: rgba(255,255,255,.08);
}
[data-theme="dark"] .btn:active::before, [data-theme="dark"] .nav-link:active::before,
[data-theme="dark"] .sns-btn:active::before, [data-theme="dark"] .hero-badge:active::before,
[data-theme="dark"] .format-chip:active::before, [data-theme="dark"] .affiliate-link:active::before,
[data-theme="dark"] .modal-close:active::before, [data-theme="dark"] .logo:active::before,
[data-theme="dark"] .footer-col a:active::before, [data-theme="dark"] .auth-switch a:active::before,
[data-theme="dark"] .task-actions .btn-icon:active::before {
    background: rgba(255,255,255,.12);
}
[data-theme="dark"] .ripple-effect .ripple { background: rgba(255,255,255,.12); }
[data-theme="dark"] .billing-seg { background: #0f0f1e; }
[data-theme="dark"] .billing-seg-highlight { background: #fff; }
[data-theme="dark"] .billing-seg-btn { color: rgba(255,255,255,.55); }
[data-theme="dark"] .billing-seg-btn.active { color: #0f0f1e; }
[data-theme="dark"] .url-input-wrap:focus-within {
    box-shadow: 0 0 0 3px rgba(255, 255, 255, .12);
}
[data-theme="dark"] .form-input:focus, [data-theme="dark"] .format-select:focus {
    box-shadow: 0 0 0 3px rgba(255, 255, 255, .12);
}
[data-theme="dark"] .mini-input-wrap, [data-theme="dark"] .mini-select { background: var(--bg); }
[data-theme="dark"] .mini-dropdown { background: var(--bg); }
[data-theme="dark"] .mini-dropdown-item.selected { background: var(--fg); color: var(--bg); }
[data-theme="dark"] .mini-btn-convert { background: var(--fg); color: var(--bg); border-color: var(--fg); }
[data-theme="dark"] .mini-btn-convert.clicked { background: transparent; color: var(--fg); }
[data-theme="dark"] .mini-cursor--pointer {
    background-image: url('data:image/svg+xml,%3Csvg xmlns=%22http://www.w3.org/2000/svg%22 width=%2218%22 height=%2224%22 viewBox=%220 0 18 24%22%3E%3Cpath d=%22M1 1l5 16 3-5 7 0z%22 fill=%22%23eee%22 stroke=%22%23333%22 stroke-width=%221%22/%3E%3C/svg%3E');
}
[data-theme="dark"] .format-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
}
[data-theme="dark"] .skip-link { background: var(--fg); color: var(--bg); }
[data-theme="dark"] .ad-placeholder { background: var(--gray-100); }
[data-theme="dark"] img.info-thumb { opacity: .92; }

/* ---------- Dark Mode (OS preference fallback) ---------- */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #111111;
        --fg: #e8e8e8;
        --accent: #e8e8e8;
        --accent-hover: #ffffff;
        --gray-100: #1a1a1a;
        --gray-200: #222222;
        --gray-300: #333333;
        --gray-400: #555555;
        --gray-500: #888888;
        --gray-600: #aaaaaa;
        --gray-700: #cccccc;
        --gray-800: #e0e0e0;
        --border: #2a2a2a;
        --border-dark: #444;
        --shadow-md: 0 4px 12px rgba(0,0,0,.3);
        --shadow-lg: 0 8px 30px rgba(0,0,0,.4);
        --error-light: #2d1515;
    }
    body { color-scheme: dark; }
    .header {
        background: rgba(17,17,17,.85);
        border-bottom-color: var(--border);
    }
    :root[data-theme="light"] .header {
        background: var(--bg);
        border-bottom-color: rgba(0,0,0,.08);
    }
    .header.scrolled {
        box-shadow: 0 1px 16px rgba(0,0,0,.3);
        border-bottom-color: rgba(255,255,255,.06);
    }
    .bg-grid {
        background-image:
            linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
            linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
    }
    .cookie-banner { background: var(--bg); }
    .format-select option { background: var(--bg); color: var(--fg); }
    .format-select optgroup { color: var(--gray-600); }
    .contact-select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); }
    .contact-select option { background: var(--bg); color: var(--fg); }
    .modal-backdrop { background: rgba(0,0,0,.6); }
    .modal-content { background: var(--bg); }
    .howto-step-visual { background: var(--gray-100); }
    .skeleton-thumb, .skeleton-line {
        background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-300) 50%, var(--gray-200) 75%);
        background-size: 400% 100%;
    }
    .btn::before, .nav-link::before, .sns-btn::before, .hero-badge::before,
    .format-chip::before, .affiliate-link::before,
    .modal-close::before, .logo::before, .footer-col a::before,
    .auth-switch a::before, .task-actions .btn-icon::before {
        background: rgba(255,255,255,.08);
    }
    .btn:active::before, .nav-link:active::before, .sns-btn:active::before,
    .hero-badge:active::before, .format-chip:active::before,
    .affiliate-link:active::before,
    .modal-close:active::before, .logo:active::before, .footer-col a:active::before,
    .auth-switch a:active::before, .task-actions .btn-icon:active::before {
        background: rgba(255,255,255,.12);
    }
    .ripple-effect .ripple { background: rgba(255,255,255,.12); }
    .billing-seg { background: #0f0f1e; }
    .billing-seg-highlight { background: #fff; }
    .billing-seg-btn { color: rgba(255,255,255,.55); }
    .billing-seg-btn.active { color: #0f0f1e; }
    .url-input-wrap:focus-within {
        box-shadow: 0 0 0 3px rgba(255, 255, 255, .12);
    }
    .form-input:focus, .format-select:focus {
        box-shadow: 0 0 0 3px rgba(255, 255, 255, .12);
    }
    .mini-input-wrap, .mini-select { background: var(--bg); }
    .mini-dropdown { background: var(--bg); }
    .mini-dropdown-item.selected { background: var(--fg); color: var(--bg); }
    .mini-btn-convert { background: var(--fg); color: var(--bg); border-color: var(--fg); }
    .mini-btn-convert.clicked { background: transparent; color: var(--fg); }
    .mini-cursor--pointer {
        background-image: url('data:image/svg+xml,%3Csvg xmlns=%22http://www.w3.org/2000/svg%22 width=%2218%22 height=%2224%22 viewBox=%220 0 18 24%22%3E%3Cpath d=%22M1 1l5 16 3-5 7 0z%22 fill=%22%23eee%22 stroke=%22%23333%22 stroke-width=%221%22/%3E%3C/svg%3E');
    }
    .format-select {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    }
    .skip-link { background: var(--fg); color: var(--bg); }
    .ad-placeholder { background: var(--gray-100); }
    img.info-thumb { opacity: .92; }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation: none !important;
        transition: none !important;
    }
    .reveal { opacity: 1; transform: none; }
}

/* ============================================================
   SPA Pages
   ============================================================ */

/* -- 共通ページレイアウト -- */
.spa-page .page-content {
    max-width: 760px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 4rem;
    line-height: 1.85;
}
.spa-page .page-content-wide {
    max-width: 960px;
}
.spa-page .page-content h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--accent);
    padding-bottom: .5rem;
}
.spa-page .page-content h2 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 2rem 0 .75rem;
}
.spa-page .page-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 1.5rem 0 .5rem;
}
.page-updated {
    color: var(--gray-500);
    font-size: .85rem;
    margin-bottom: 1.5rem;
}
.page-desc {
    color: var(--gray-600);
    font-size: 1.05rem;
    margin-bottom: 2rem;
}
.spa-page .page-content ul,
.spa-page .page-content ol {
    padding-left: 1.5rem;
    margin: .5rem 0 1.5rem;
}
.spa-page .page-content li {
    margin-bottom: .4rem;
}

/* -- 共通テーブル -- */
.page-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0 2rem;
    font-size: .92rem;
}
.page-table th,
.page-table td {
    padding: .65rem .85rem;
    border: 1px solid var(--border);
    text-align: left;
}
.page-table thead th {
    background: var(--accent);
    color: #fff;
    font-weight: 600;
}
[data-theme="dark"] .page-table thead th {
    background: var(--gray-300);
    color: var(--fg);
}
.page-table tbody tr:nth-child(even) {
    background: var(--gray-100);
}

/* -- 特商法テーブル -- */
.tokutei-table th {
    width: 180px;
    background: var(--gray-100);
    font-weight: 600;
    white-space: nowrap;
}
.tokutei-table td small {
    color: var(--gray-500);
}

/* -- FAQ -- */
.faq-q {
    font-weight: 700;
    color: var(--accent);
    margin: 1.5rem 0 .25rem;
    font-size: 1.05rem;
}

/* -- APIドキュメント -- */
.doc-nav-tabs {
    display: flex;
    gap: .5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
    padding-bottom: 0;
    overflow-x: auto;
}
.doc-nav-tab {
    padding: .6rem 1rem;
    color: var(--gray-600);
    font-size: .9rem;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: color .2s, border-color .2s;
    text-decoration: none;
    white-space: nowrap;
}
.doc-nav-tab:hover { color: var(--fg); }
.doc-nav-tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}
.doc-section {
    margin-bottom: 3rem;
}
.endpoint {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .6rem 0;
    flex-wrap: wrap;
}
.endpoint-method {
    font-size: .75rem;
    font-weight: 700;
    padding: .2rem .5rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: .03em;
}
.method-get { background: #e7f5e7; color: #1a7a1a; }
.method-post { background: #e7ecf5; color: #1a3a7a; }
.method-delete { background: #f5e7e7; color: #7a1a1a; }
.endpoint-path {
    font-family: monospace;
    font-size: .92rem;
    font-weight: 600;
}
.endpoint-desc {
    width: 100%;
    margin: .1rem 0 0;
    color: var(--gray-600);
    font-size: .88rem;
}
.spa-page pre {
    background: var(--gray-100);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    overflow-x: auto;
    font-size: .85rem;
    line-height: 1.6;
    margin: .75rem 0 1.5rem;
}
.spa-page pre .comment { color: var(--gray-500); }
.spa-page pre .string { color: #22863a; }
.spa-page pre .key { color: #005cc5; }
.spa-page code {
    background: var(--gray-100);
    padding: .15rem .4rem;
    border-radius: 4px;
    font-size: .88em;
}
.doc-cta-box {
    text-align: center;
    padding: 2rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--gray-100);
    margin: 2rem 0;
}
.doc-cta-box h3 {
    margin: 0 0 .5rem;
    font-size: 1.2rem;
}
.doc-cta-box p {
    margin: 0 0 1rem;
    color: var(--gray-600);
}

/* -- 開発者ダッシュボード -- */
.dev-login-prompt {
    text-align: center;
    padding: 4rem 1rem;
}
.dev-login-prompt h2 {
    font-size: 1.5rem;
    margin-bottom: .75rem;
}
.dev-login-prompt p {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
}
.dev-dash-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: .75rem;
}
.dev-dash-header h1 {
    border: none !important;
    padding-bottom: 0 !important;
    margin-bottom: 0 !important;
    font-size: 1.5rem;
}
.dev-dash-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}
.dev-stat-card {
    padding: 1.25rem 1.5rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg);
}
.dev-stat-label {
    font-size: .82rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: .05em;
    margin-bottom: .35rem;
}
.dev-stat-value {
    font-size: 1.8rem;
    font-weight: 700;
}
.dev-stat-sub {
    font-size: .82rem;
    color: var(--gray-500);
    margin-top: .35rem;
}
.dev-usage-bar-bg {
    height: 6px;
    background: var(--gray-200);
    border-radius: 3px;
    margin-top: .65rem;
    overflow: hidden;
}
.dev-usage-bar-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 3px;
    transition: width .4s ease;
}
.dev-section {
    margin-top: 2.5rem;
}
.dev-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: .5rem;
}
.dev-section-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0;
}
.dev-key-full {
    font-family: monospace;
    font-size: .9rem;
    padding: .65rem 1rem;
    background: var(--gray-100);
    border: 1px solid var(--border);
    border-radius: 8px;
    word-break: break-all;
    margin-bottom: .5rem;
    display: none;
}
.dev-key-warning {
    font-size: .82rem;
    color: #d97706;
    margin-bottom: 1rem;
}
.dev-empty-state {
    text-align: center;
    padding: 2rem;
    color: var(--gray-500);
    border: 1px dashed var(--border);
    border-radius: 8px;
}
.dev-key-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: .85rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: .65rem;
    flex-wrap: wrap;
}
.dev-key-card .dev-key-prefix {
    font-family: monospace;
    font-size: .88rem;
    font-weight: 600;
}
.dev-key-card .dev-key-meta {
    font-size: .78rem;
    color: var(--gray-500);
}
.dev-key-card .dev-key-actions {
    display: flex;
    gap: .35rem;
}
.dev-plans-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: .5rem;
}
.dev-plan-card {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: border-color .2s;
}
.dev-plan-card:hover {
    border-color: var(--accent);
}
.dev-plan-card.current {
    border-color: var(--accent);
    background: rgba(99,102,241,.06);
}
.dev-plan-card h3 {
    margin: 0 0 .25rem;
    font-size: 1.1rem;
}
.dev-plan-card .dev-plan-price {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: .75rem;
}
.dev-plan-card .dev-plan-price small {
    font-size: .75rem;
    font-weight: 400;
    color: var(--gray-500);
}
.dev-plan-card ul {
    text-align: left;
    font-size: .85rem;
    padding-left: 1.2rem;
    margin: 0 0 1rem;
    list-style: none;
}
.dev-plan-card ul li::before {
    content: "✓ ";
    color: var(--accent);
    font-weight: 700;
}

/* -- Dark mode adjustments for SPA pages -- */
[data-theme="dark"] .method-get { background: #1a3d1a; color: #6fcf6f; }
[data-theme="dark"] .method-post { background: #1a2a4a; color: #6fa8ff; }
[data-theme="dark"] .method-delete { background: #3d1a1a; color: #ff6f6f; }
[data-theme="dark"] .spa-page pre .string { color: #85e89d; }
[data-theme="dark"] .spa-page pre .key { color: #79b8ff; }
[data-theme="dark"] .doc-cta-box { background: var(--gray-200); }
[data-theme="dark"] .dev-plan-card.current { background: rgba(99,102,241,.12); }

@media (prefers-color-scheme: dark) {
    .method-get { background: #1a3d1a; color: #6fcf6f; }
    .method-post { background: #1a2a4a; color: #6fa8ff; }
    .method-delete { background: #3d1a1a; color: #ff6f6f; }
    .spa-page pre .string { color: #85e89d; }
    .spa-page pre .key { color: #79b8ff; }
    .doc-cta-box { background: var(--gray-200); }
    .dev-plan-card.current { background: rgba(99,102,241,.12); }
    :root:not([data-theme="light"]) .page-table thead th {
        background: var(--gray-300);
        color: var(--fg);
    }
}

/* -- SPA pages responsive -- */
@media (max-width: 600px) {
    .spa-page .page-content { padding: 1.5rem 1rem 3rem; }
    .spa-page .page-content h1 { font-size: 1.35rem; }
    .tokutei-table th { width: 120px; }
    .doc-nav-tabs { gap: .25rem; }
    .dev-dash-grid { grid-template-columns: 1fr; }
    .dev-plans-row { grid-template-columns: 1fr; }
}