/* ==========================================================
   螺途创意工坊 · LUOTU kid-friendly cartoon layer
   Loaded after themes.css. theme-init.js marks <html data-ui="kids">, and
   data-theme picks one of six bright palettes. Every rule below reads palette
   variables, so new palettes only need a variable block.
   ========================================================== */

/* ---------- Palettes ---------- */
:root[data-ui="kids"] {
  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
  --hand: "Kaiti SC", "STKaiti", "KaiTi", "BiauKai", "Noto Serif CJK SC", serif;
  --emoji: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif;
  --scene-opacity: 1;
  --border: var(--line); --mint: var(--accent); --cyan: var(--accent);
  --danger-ink: #ffffff;
  --card-shadow: 0 1px 2px var(--tint-1), 0 10px 30px var(--tint-2);
  --pop-shadow: 0 2px 4px var(--tint-1), 0 20px 48px var(--tint-3);
}
:root[data-ui="kids"][data-theme="luotu"] {
  color-scheme: light;
  --bg: #faf8ff; --panel: #ffffff; --raised: #f4f0ff; --input: #faf8ff; --sidebar: #ffffff; --hover: #f7f4ff;
  --line: #e6def8; --soft-line: #efe9ff; --strong-line: #cbbcf8;
  --text: #2a2342; --muted: #665f82; --accent: #6b4ce6; --accent-ink: #ffffff; --accent-soft: #efeaff;
  --pop: #f2741f; --pop-ink: #cf4a06; --cta-a: #f07222; --cta-b: #cf4a06; --cta-glow: #e25a0c;
  --danger: #c2410c; --success: #2f7a52; --overlay: #2a234280; --shadow: #5a3fc01c; --image-ink: #2a2342;
  --stage: #f2effc; --blob-a: #ffe6d1; --blob-b: #dcecff; --blob-c: #dcf4e6; --dot: #7b5cf516;
  --note-a: #fff5ec; --note-b: #ffe8d4; --note-line: #ffe0c4; --note-ink: #8a3d0a; --glass: #ffffffb8;
  --tint-1: #3c28780d; --tint-2: #3c287812; --tint-3: #3c287824;
}
:root[data-ui="kids"][data-theme="candy"] {
  color-scheme: light;
  --bg: #fff7fa; --panel: #ffffff; --raised: #ffeef4; --input: #fff8fb; --sidebar: #ffffff; --hover: #fff1f6;
  --line: #f6d6e3; --soft-line: #fde6ef; --strong-line: #f3a9c6;
  --text: #3a2232; --muted: #7a586b; --accent: #d63a72; --accent-ink: #ffffff; --accent-soft: #ffe6ef;
  --pop: #8b5cf6; --pop-ink: #6d3fd8; --cta-a: #ff7aa8; --cta-b: #d63a72; --cta-glow: #e0457b;
  --danger: #c2410c; --success: #2f7a52; --overlay: #3a223280; --shadow: #d63a721c; --image-ink: #3a2232;
  --stage: #fff0f5; --blob-a: #ffd9e6; --blob-b: #e9dcff; --blob-c: #fff1c9; --dot: #e0457b14;
  --note-a: #f4efff; --note-b: #e9dfff; --note-line: #ddd0fb; --note-ink: #5b3fb0; --glass: #ffffffb8;
  --tint-1: #8a24500d; --tint-2: #8a245012; --tint-3: #8a245024;
}
:root[data-ui="kids"][data-theme="sea"] {
  color-scheme: light;
  --bg: #f4faff; --panel: #ffffff; --raised: #e8f4ff; --input: #f6fbff; --sidebar: #ffffff; --hover: #eef7ff;
  --line: #cfe4f7; --soft-line: #e3f0fb; --strong-line: #9ccbf2;
  --text: #1d3349; --muted: #50697f; --accent: #1f6fd1; --accent-ink: #ffffff; --accent-soft: #e2f0ff;
  --pop: #ff8a3d; --pop-ink: #c9560a; --cta-a: #34b3ff; --cta-b: #1f6fd1; --cta-glow: #1f7ae0;
  --danger: #c2410c; --success: #2f7a52; --overlay: #1d334980; --shadow: #1f6fd11c; --image-ink: #1d3349;
  --stage: #eaf6ff; --blob-a: #d4f0ff; --blob-b: #fff1d6; --blob-c: #d9f7ec; --dot: #1f7ae014;
  --note-a: #fff7e3; --note-b: #ffedc4; --note-line: #ffe1a0; --note-ink: #85560a; --glass: #ffffffb8;
  --tint-1: #10406e0d; --tint-2: #10406e12; --tint-3: #10406e24;
}
:root[data-ui="kids"][data-theme="forest"] {
  color-scheme: light;
  --bg: #f6fbf4; --panel: #ffffff; --raised: #eaf6e6; --input: #f8fcf6; --sidebar: #ffffff; --hover: #eff8ec;
  --line: #d4e9cd; --soft-line: #e6f3e1; --strong-line: #a8d59a;
  --text: #213826; --muted: #536b5b; --accent: #2b8548; --accent-ink: #ffffff; --accent-soft: #e3f4e6;
  --pop: #f29a1f; --pop-ink: #ad6200; --cta-a: #5cc46f; --cta-b: #2b8548; --cta-glow: #2f8f4e;
  --danger: #c2410c; --success: #2b8548; --overlay: #21382680; --shadow: #2b85481c; --image-ink: #213826;
  --stage: #eef8ea; --blob-a: #dff5d0; --blob-b: #fff2cc; --blob-c: #d8efff; --dot: #2f8f4e14;
  --note-a: #fff6e0; --note-b: #ffeabd; --note-line: #fbd99a; --note-ink: #7a4f00; --glass: #ffffffb8;
  --tint-1: #1c50300d; --tint-2: #1c503012; --tint-3: #1c503024;
}
:root[data-ui="kids"][data-theme="sunny"] {
  color-scheme: light;
  --bg: #fffbf0; --panel: #ffffff; --raised: #fff4d6; --input: #fffcf4; --sidebar: #ffffff; --hover: #fff7e2;
  --line: #f1dfab; --soft-line: #f9eecd; --strong-line: #f0c860;
  --text: #3a2e14; --muted: #6f6245; --accent: #b25a00; --accent-ink: #ffffff; --accent-soft: #fff0cc;
  --pop: #ef5a6f; --pop-ink: #c43449; --cta-a: #ff9f1a; --cta-b: #e2620a; --cta-glow: #f07a00;
  --danger: #c2410c; --success: #2f7a52; --overlay: #3a2e1480; --shadow: #b25a001c; --image-ink: #3a2e14;
  --stage: #fff6dc; --blob-a: #ffe9a8; --blob-b: #ffd9d0; --blob-c: #dff3ff; --dot: #e0890016;
  --note-a: #eaf6ff; --note-b: #d8edff; --note-line: #c4e0fb; --note-ink: #1f5a99; --glass: #ffffffb8;
  --tint-1: #7a4a000d; --tint-2: #7a4a0012; --tint-3: #7a4a0024;
}
:root[data-ui="kids"][data-theme="night"] {
  color-scheme: dark;
  --bg: #171a33; --panel: #22264a; --raised: #2c3160; --input: #1c2042; --sidebar: #1d2142; --hover: #2a2f5c;
  --line: #3b4180; --soft-line: #31366b; --strong-line: #6a63c9;
  --text: #f3f2ff; --muted: #b8bae2; --accent: #b3a6ff; --accent-ink: #1b1640; --accent-soft: #35306f;
  --pop: #ffb35c; --pop-ink: #ffc985; --cta-a: #ff9a4d; --cta-b: #e8650f; --cta-glow: #f2741f;
  --danger: #ffb4a3; --danger-ink: #3a160d; --success: #9fe0bd; --overlay: #0a0c1ccc; --shadow: #00000040; --image-ink: #f3f2ff;
  --stage: #151832; --blob-a: #3a2f7a; --blob-b: #1f3f6e; --blob-c: #3c2a55; --dot: #ffffff10;
  --note-a: #2f2a5e; --note-b: #3a2f6e; --note-line: #4a4290; --note-ink: #ffd59a; --glass: #1d2142cc;
  --tint-1: #0000001f; --tint-2: #00000029; --tint-3: #00000047;
}

/* ---------- Brand basics ---------- */
.brand-mark { flex: none; }
.brand-mark img, .brand-z img { display: block; width: 100%; height: 100%; object-fit: contain; transition: transform .4s cubic-bezier(.2,.8,.2,1); }
.wordmark .brand-mark { width: 40px; height: 40px; font-size: 0; }
.brand-z { display: inline-grid; place-items: center; width: 38px; height: 38px; flex: none; font-size: 0 !important; }
.wordmark:hover .brand-mark img, .brand:hover .brand-z img { transform: rotate(-8deg); }
.auth-home-link { position: absolute; top: 54px; right: 15%; font-size: 12px; color: var(--muted); }
.auth-stage-tag, .auth-sticker, .auth-features, .auth-hand { display: none; }

[data-ui="kids"] body { background: var(--bg); }
[data-ui="kids"] ::selection { background: color-mix(in srgb, var(--pop) 30%, transparent); color: var(--text); }
[data-ui="kids"] :focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 55%, transparent); outline-offset: 2px; }

/* ---------- Buttons ---------- */
[data-ui="kids"] .primary {
  color: #fff; border: 0; border-radius: 999px; font-weight: 800; letter-spacing: .02em;
  background: linear-gradient(180deg, var(--cta-a) 0%, var(--cta-b) 100%);
  box-shadow: 0 6px 16px color-mix(in srgb, var(--cta-glow) 30%, transparent), inset 0 2px 0 #ffffff40;
  text-shadow: 0 1px 1px #0000003d;
}
[data-ui="kids"] .primary:hover { background: linear-gradient(180deg, color-mix(in srgb, var(--cta-a) 88%, #fff), var(--cta-b)); box-shadow: 0 10px 22px color-mix(in srgb, var(--cta-glow) 40%, transparent), inset 0 2px 0 #ffffff40; transform: translateY(-2px); }
[data-ui="kids"] .primary:active { transform: translateY(1px) scale(.98); }
[data-ui="kids"] .secondary { border: 2px solid var(--line); border-radius: 999px; background: var(--panel); color: var(--text); font-weight: 700; }
[data-ui="kids"] .secondary:hover { border-color: var(--strong-line); color: var(--accent); background: var(--hover); }
[data-ui="kids"] .text-button { font-size: 13px; }
[data-ui="kids"] .text-button:hover { color: var(--accent); }
[data-ui="kids"] input[type="file"]::file-selector-button { margin-right: 10px; padding: 6px 14px; border: 2px solid var(--line); border-radius: 999px; background: var(--panel); color: var(--text); font: 700 13px var(--font); cursor: pointer; }
[data-ui="kids"] input[type="file"]::file-selector-button:hover { border-color: var(--strong-line); color: var(--accent); }

/* ---------- Readable type for young eyes ---------- */
[data-ui="kids"] .eyebrow { color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .12em; }
[data-ui="kids"] .view h1 { font-weight: 900; letter-spacing: .01em; color: var(--text); }
[data-ui="kids"] .view h2 { color: var(--text); }
[data-ui="kids"] .intro h1 > span, [data-ui="kids"] .page-heading h1 > span, [data-ui="kids"] .creative-heading h1 span,
[data-ui="kids"] .breakdown-heading h1 span, [data-ui="kids"] .tts-hero h1 em { color: var(--pop); font-style: normal; }
[data-ui="kids"] .intro p, [data-ui="kids"] .page-heading p, [data-ui="kids"] .creative-heading p, [data-ui="kids"] .breakdown-heading > p,
[data-ui="kids"] .image-heading p, [data-ui="kids"] .music-heading p, [data-ui="kids"] .tts-hero-copy p { font-size: 15px; line-height: 1.7; }
[data-ui="kids"] .composer-caption, [data-ui="kids"] .prompt-footer, [data-ui="kids"] .quality-note, [data-ui="kids"] .section-note,
[data-ui="kids"] .creative-scope, [data-ui="kids"] .creative-send-note, [data-ui="kids"] .breakdown-note, [data-ui="kids"] .tts-field-note,
[data-ui="kids"] .music-duration-note, [data-ui="kids"] .image-size-note, [data-ui="kids"] .quota-line, [data-ui="kids"] .direction-card p { font-size: 13px; }
[data-ui="kids"] .mode-tab { font-size: 14px; }
[data-ui="kids"] .sidebar-note p, [data-ui="kids"] .direction-card h3, [data-ui="kids"] .feature-copy h3 { font-weight: 800; }
/* Engineering details mean little to children; keep the interface about creating. */
[data-ui="kids"] .model-seal, [data-ui="kids"] .tts-model-badge, [data-ui="kids"] .music-model-label { display: none; }

/* ---------- Sidebar ---------- */
[data-ui="kids"] .sidebar { background: var(--sidebar); border-right: 2px solid var(--soft-line); box-shadow: 6px 0 28px var(--tint-1); }
[data-ui="kids"] .sidebar .wordmark { font-weight: 900; color: var(--text); letter-spacing: .06em; }
[data-ui="kids"] .wordmark small { color: var(--accent); font-weight: 800; letter-spacing: .2em; }
[data-ui="kids"] .workspace-tag { margin: 22px 4px 18px; padding: 8px 14px; border: 0; border-radius: 999px; background: var(--raised); color: var(--accent); font-weight: 700; font-size: 13px; }
[data-ui="kids"] .tiny-orbit { width: 8px; height: 8px; border: 0; background: #46c08a; box-shadow: 0 0 0 3px #46c08a33; }
[data-ui="kids"] .nav-item { margin-bottom: 3px; padding-top: 7px; padding-bottom: 7px; border-radius: 16px; color: var(--text); font-size: 15px; font-weight: 700; }
[data-ui="kids"] .nav-item:hover { background: var(--hover); color: var(--accent); }
[data-ui="kids"] .nav-item.active { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 22%, transparent); color: var(--accent); box-shadow: 0 4px 12px var(--tint-2); }
[data-ui="kids"] .nav-glyph { display: grid; place-items: center; flex: none; width: 32px; height: 32px; margin: 0; border: 0; border-radius: 11px; font-size: 0; background: color-mix(in srgb, var(--g, var(--accent)) 16%, var(--panel)); box-shadow: none; transition: transform .3s cubic-bezier(.2,.8,.2,1); }
[data-ui="kids"] .nav-glyph::before { content: var(--icon, "✨"); font: 17px/1 var(--emoji); }
[data-ui="kids"] .nav-item:hover .nav-glyph, [data-ui="kids"] .nav-item.active .nav-glyph { transform: rotate(-8deg) scale(1.08); }
[data-ui="kids"] .main-nav > [data-view="creative"] { --icon: "✨"; --g: #7b5cf5; }
[data-ui="kids"] .main-nav > [data-view="media"] { --icon: "🔍"; --g: #2f7fd8; }
[data-ui="kids"] .main-nav > [data-view="create"] { --icon: "🎬"; --g: #f2741f; }
[data-ui="kids"] .main-nav > [data-view="library"] { --icon: "🖼️"; --g: #2f9a58; }
[data-ui="kids"] .main-nav > [data-view="music"] { --icon: "🎵"; --g: #e0457b; }
[data-ui="kids"] .main-nav > [data-view="image"] { --icon: "🎨"; --g: #e0a100; }
[data-ui="kids"] .main-nav > [data-view="tts"] { --icon: "🎤"; --g: #1f9fa0; }
[data-ui="kids"] .main-nav > #admin-nav { --icon: "⚙️"; --g: #8a84a3; }
/* Step numbers and arrows read as noise; only the works counter stays, as a badge. */
[data-ui="kids"] .nav-trailing { display: none; }
[data-ui="kids"] .nav-trailing#library-count { display: inline-grid; place-items: center; min-width: 24px; height: 22px; padding: 0 7px; border-radius: 999px; background: var(--raised); color: var(--accent); font-size: 12px; font-weight: 800; opacity: 1; }
[data-ui="kids"] .sidebar-note { position: relative; flex: none; margin: 18px 4px 0; padding: 14px 16px 58px; border-radius: 22px; background: linear-gradient(160deg, var(--note-a), var(--note-b)); border: 2px solid var(--note-line); overflow: hidden; }
[data-ui="kids"] .sidebar-note .eyebrow { color: var(--note-ink); font-size: 11px; opacity: .85; }
[data-ui="kids"] .sidebar-note p { margin-top: 6px; font: 700 18px/1.45 var(--hand); color: var(--note-ink); }
[data-ui="kids"] .sidebar-note .wave-lines { display: none; }
[data-ui="kids"] .sidebar-note::after { content: ""; position: absolute; right: 8px; bottom: 4px; width: 110px; height: 52px; background: url("/static/assets/luotu/s-orange.webp") left bottom 2px / 40px no-repeat, url("/static/assets/luotu/s-snail.webp") right bottom / 54px no-repeat; }
[data-ui="kids"] .quiet-button { color: var(--muted); font-size: 13px; font-weight: 700; border-radius: 12px; }
[data-ui="kids"] .quiet-button:hover { color: var(--accent); background: var(--hover); }
[data-ui="kids"] .profile { border-top: 2px dashed var(--line); }
[data-ui="kids"] .avatar { width: 34px; height: 34px; color: #fff; font-weight: 800; background: linear-gradient(180deg, var(--cta-a), var(--cta-b)); box-shadow: 0 4px 10px color-mix(in srgb, var(--cta-glow) 30%, transparent); }
[data-ui="kids"] .profile-text strong { font-weight: 800; font-size: 13px; }
@media (max-height: 820px) { [data-ui="kids"] .sidebar-note { display: none; } }

/* ---------- Top bar ---------- */
[data-ui="kids"] .topbar { background: var(--glass); backdrop-filter: blur(12px); border-bottom: 2px solid var(--soft-line); }
[data-ui="kids"] .breadcrumb { font-size: 13px; }
[data-ui="kids"] .breadcrumb strong { color: var(--text); font-weight: 800; }
[data-ui="kids"] .live-counts { font-size: 12px; }
[data-ui="kids"] .live-counts span { padding: 5px 12px; border-radius: 999px; background: var(--panel); border: 1px solid var(--line); }
[data-ui="kids"] .live-counts b { color: var(--accent); }
[data-ui="kids"] .connection { background: var(--panel); border-color: var(--line); color: var(--muted); font-size: 12px; font-weight: 700; }
[data-ui="kids"] .connection.online i { background: #46c08a; box-shadow: 0 0 0 3px #46c08a33; }

/* ---------- Cards & panels ---------- */
[data-ui="kids"] .composer, [data-ui="kids"] .music-composer, [data-ui="kids"] .image-composer,
[data-ui="kids"] .tts-composer, [data-ui="kids"] .breakdown-panel, [data-ui="kids"] .creative-conversation {
  background: var(--panel); border: 2px solid var(--soft-line); border-radius: 26px; box-shadow: var(--card-shadow);
}
[data-ui="kids"] .composer:focus-within, [data-ui="kids"] .image-composer:focus-within,
[data-ui="kids"] .music-composer:focus-within, [data-ui="kids"] .tts-composer:focus-within { border-color: var(--strong-line); }
[data-ui="kids"] .creative-composer { background: var(--input); border: 2px solid var(--line); border-radius: 20px; }
[data-ui="kids"] .creative-composer:focus-within { border-color: var(--strong-line); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 12%, transparent); }
[data-ui="kids"] .creative-starters button { border: 2px solid var(--line); background: var(--panel); color: var(--text); font-size: 13px; font-weight: 700; }
[data-ui="kids"] .creative-starters button:hover { border-color: var(--pop); color: var(--pop-ink); }
[data-ui="kids"] .creative-welcome h2 { font-weight: 800; }
[data-ui="kids"] .direction-card { border: 2px solid var(--soft-line); border-radius: 26px; background: linear-gradient(160deg, var(--panel), var(--raised)); }
[data-ui="kids"] .media-card { border: 2px solid var(--soft-line); border-radius: 20px; box-shadow: var(--card-shadow); }
[data-ui="kids"] .media-card:hover, [data-ui="kids"] .image-result:hover { border-color: var(--strong-line); box-shadow: var(--pop-shadow); }
[data-ui="kids"] .grid-glyph:not(.nav-glyph) { box-shadow: 3px 3px 0 -1px var(--panel), 4px 4px 0 currentColor; }
[data-ui="kids"] .mode-tab, [data-ui="kids"] .filter-tabs button { border-radius: 999px; font-weight: 700; }
[data-ui="kids"] .filter-tabs button { font-size: 13px; }
[data-ui="kids"] .mode-tab.active, [data-ui="kids"] .filter-tabs .active { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 25%, transparent); color: var(--accent); }
[data-ui="kids"] .mode-index { color: var(--pop); font-weight: 800; }
[data-ui="kids"] .view input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="file"]),
[data-ui="kids"] .view select, [data-ui="kids"] .view textarea:not(.creative-composer textarea) { border-radius: 14px; }
[data-ui="kids"] dialog { border: 2px solid var(--soft-line); border-radius: 26px; box-shadow: var(--pop-shadow); }
[data-ui="kids"] .studio-footer { color: var(--muted); font-size: 12px; font-weight: 700; }
[data-ui="kids"] .studio-footer > span:last-child { font-family: var(--hand); font-size: 15px; color: var(--accent); }

/* Friendly empty states: a mascot instead of an abstract glyph. */
[data-ui="kids"] .empty-state { gap: 4px; border: 2px dashed var(--line); border-radius: 22px; background: color-mix(in srgb, var(--panel) 70%, transparent); }
[data-ui="kids"] .empty-state::before { content: ""; width: 72px; height: 72px; margin-bottom: 6px; background: url("/static/assets/luotu/logo.webp") center / contain no-repeat; animation: lt-bob 4.6s ease-in-out infinite; }
[data-ui="kids"] .empty-state strong { font-size: 16px; font-weight: 800; color: var(--text); }
[data-ui="kids"] .empty-state p { font-size: 13px; }
[data-ui="kids"] .creative-empty-art > span, [data-ui="kids"] .breakdown-empty > span { display: block; width: 84px; height: 84px; margin: 0 auto 10px; font-size: 0; color: transparent; border: 0; background: url("/static/assets/luotu/s-robot.webp") center / contain no-repeat; animation: lt-bob 4.6s ease-in-out infinite; }
[data-ui="kids"] .breakdown-empty > span { background-image: url("/static/assets/luotu/s-corgi.webp"); }
[data-ui="kids"] .creative-empty-art h3, [data-ui="kids"] .breakdown-empty h2 { font-weight: 800; }
[data-ui="kids"] .creative-orbit { font-size: 0 !important; color: transparent; border: 0 !important; background: url("/static/assets/luotu/logo.webp") center / 40px no-repeat; }

/* ---------- Theme dial: six candy swatches ---------- */
[data-ui="kids"] .theme-trigger { background: var(--panel); border: 2px solid var(--soft-line); box-shadow: 0 6px 18px var(--tint-2); }
[data-ui="kids"] .theme-trigger-wheel { border-color: var(--panel); background: conic-gradient(from 0deg, #6b4ce6 0 60deg, #ff7aa8 60deg 120deg, #34b3ff 120deg 180deg, #5cc46f 180deg 240deg, #ffb020 240deg 300deg, #2c3160 300deg 360deg); }
[data-ui="kids"] .theme-orbit { background: color-mix(in srgb, var(--panel) 96%, transparent); border: 2px solid var(--soft-line); }
[data-ui="kids"] .theme-orbit-center small { font-size: 12px; font-weight: 800; color: var(--accent); }
[data-ui="kids"] .theme-orbit-center strong { font-weight: 900; }
[data-ui="kids"] .theme-swatch { background: var(--panel); border: 2px solid var(--soft-line); }
[data-ui="kids"] .theme-swatch > span { background: linear-gradient(145deg, var(--swatch-a) 50%, var(--swatch-b) 50%); box-shadow: inset 0 -3px 0 #0000001a; }
.theme-swatch-luotu { --swatch-a: #7b5cf5; --swatch-b: #f2741f; left: 110px; top: 22px; }
.theme-swatch-candy { --swatch-a: #ff7aa8; --swatch-b: #a78bfa; left: 187px; top: 67px; }
.theme-swatch-sea { --swatch-a: #34b3ff; --swatch-b: #ffb547; left: 187px; top: 156px; }
.theme-swatch-forest { --swatch-a: #5cc46f; --swatch-b: #f2a93b; left: 110px; top: 200px; }
.theme-swatch-sunny { --swatch-a: #ffb020; --swatch-b: #ff7a8a; left: 33px; top: 156px; }
.theme-swatch-night { --swatch-a: #2c3160; --swatch-b: #ffd36b; left: 33px; top: 67px; }

/* ---------- Login landing (homepage) ---------- */
[data-ui="kids"] .auth-screen {
  --lt-gutter: clamp(24px, 6vw, 96px);
  position: relative; overflow: hidden;
  grid-template-columns: minmax(0, 1.18fr) minmax(360px, .82fr); align-items: center; gap: clamp(28px, 4vw, 72px);
  padding: 112px var(--lt-gutter) 56px;
  background:
    radial-gradient(circle at 10% 16%, var(--blob-a) 0, transparent 30%),
    radial-gradient(circle at 92% 6%, var(--blob-b) 0, transparent 30%),
    radial-gradient(circle at 62% 98%, var(--blob-c) 0, transparent 34%),
    radial-gradient(var(--dot) 2px, transparent 2.5px) 0 0 / 34px 34px,
    var(--stage);
}
[data-ui="kids"] .auth-screen::before { content: ""; position: absolute; left: -120px; bottom: -160px; width: 420px; height: 420px; border-radius: 50%; background: var(--accent-soft); opacity: .55; pointer-events: none; }
[data-ui="kids"] .auth-screen::after { content: ""; position: absolute; right: -80px; top: 46%; width: 260px; height: 260px; border-radius: 50%; background: var(--blob-a); opacity: .5; pointer-events: none; }
[data-ui="kids"] .auth-form-wrap { position: static; padding: 0; display: flex; flex-direction: column; justify-content: center; z-index: 1; }
[data-ui="kids"] .auth-form-wrap .wordmark { position: absolute; top: 26px; left: var(--lt-gutter); gap: 12px; font-size: 22px; font-weight: 900; letter-spacing: .08em; color: var(--text); z-index: 2; }
[data-ui="kids"] .auth-form-wrap .wordmark .brand-mark { width: 52px; height: 52px; }
[data-ui="kids"] .auth-form-wrap .wordmark small { font-size: 11px; margin-top: 5px; }
[data-ui="kids"] .auth-home-link { position: absolute; top: 36px; right: calc(var(--lt-gutter) + 60px); z-index: 2; display: inline-flex; align-items: center; min-height: 40px; padding: 0 18px; border-radius: 999px; background: var(--panel); border: 2px solid color-mix(in srgb, var(--pop) 55%, transparent); color: var(--pop-ink); font-size: 14px; font-weight: 800; box-shadow: 0 4px 12px var(--tint-1); transition: transform .2s, background .2s; }
[data-ui="kids"] .auth-home-link:hover { background: var(--hover); transform: translateY(-2px); }

[data-ui="kids"] .auth-art { position: relative; z-index: 1; min-height: 0; overflow: visible; display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: clamp(24px, 3.2vw, 56px); }
[data-ui="kids"] .auth-art-shade { display: none; }
[data-ui="kids"] .auth-art > video {
  position: relative; grid-column: 2; grid-row: 1; width: clamp(220px, 19vw, 300px); height: auto; aspect-ratio: 9 / 16;
  object-fit: cover; object-position: 50% 40%; filter: none; background: var(--raised);
  border: 8px solid var(--panel); border-radius: 30px; box-shadow: 0 0 0 2px var(--line), 0 26px 50px var(--tint-3); transform: rotate(3deg);
}
[data-ui="kids"] .auth-stage-tag { grid-column: 2; grid-row: 1; align-self: end; justify-self: center; z-index: 2; display: inline-flex; align-items: center; gap: 8px; margin-bottom: -16px; padding: 8px 16px; border-radius: 999px; background: var(--panel); color: var(--accent); font-size: 13px; font-weight: 800; letter-spacing: .08em; box-shadow: 0 8px 20px var(--tint-3); transform: rotate(3deg); }
[data-ui="kids"] .auth-stage-tag i { width: 0; height: 0; border-style: solid; border-width: 6px 0 6px 10px; border-color: transparent transparent transparent var(--pop); }
[data-ui="kids"] .auth-sticker { grid-column: 2; grid-row: 1; z-index: 2; display: block; width: clamp(60px, 5.6vw, 84px); aspect-ratio: 1; background: center / contain no-repeat; filter: drop-shadow(0 8px 10px var(--tint-2)); pointer-events: none; animation: lt-bob 4.6s ease-in-out infinite; }
[data-ui="kids"] .auth-sticker-orange { align-self: start; justify-self: start; margin: -26px 0 0 -42px; background-image: url("/static/assets/luotu/s-orange.webp"); }
[data-ui="kids"] .auth-sticker-robot { align-self: end; justify-self: start; margin: 0 0 56px -52px; background-image: url("/static/assets/luotu/s-robot.webp"); animation-delay: -1.6s; }
[data-ui="kids"] .auth-sticker-corgi { align-self: start; justify-self: end; margin: 34% -46px 0 0; background-image: url("/static/assets/luotu/s-corgi.webp"); animation-delay: -3s; }
@keyframes lt-bob { 0%, 100% { transform: translateY(0) rotate(-4deg); } 50% { transform: translateY(-10px) rotate(4deg); } }

[data-ui="kids"] .auth-art-copy { position: relative; grid-column: 1; grid-row: 1; inset: auto; left: auto; right: auto; bottom: auto; }
[data-ui="kids"] .auth-art-copy .eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; border-radius: 999px; background: var(--panel); border: 1px solid var(--line); color: var(--accent); font-size: 13px; letter-spacing: .14em; box-shadow: 0 4px 12px var(--tint-2); }
[data-ui="kids"] .auth-art-copy .eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--pop); box-shadow: 0 0 0 3px color-mix(in srgb, var(--pop) 20%, transparent); }
[data-ui="kids"] .auth-art-copy h1 { margin-top: 22px; font: 900 clamp(34px, 3.7vw, 58px)/1.22 var(--font); letter-spacing: .02em; color: var(--text); }
[data-ui="kids"] .auth-art-copy .hl { position: relative; display: inline-block; padding: 0 .04em; color: var(--pop); }
[data-ui="kids"] .auth-art-copy .hl::after { content: ""; position: absolute; left: -4%; right: -6%; bottom: -.1em; height: .24em; background: var(--pop); -webkit-mask: no-repeat center / 100% 100% url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 14' preserveAspectRatio='none'%3E%3Cpath d='M3 10C30 3 70 1 117 5' fill='none' stroke='%23000' stroke-width='5' stroke-linecap='round'/%3E%3C/svg%3E"); mask: no-repeat center / 100% 100% url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 14' preserveAspectRatio='none'%3E%3Cpath d='M3 10C30 3 70 1 117 5' fill='none' stroke='%23000' stroke-width='5' stroke-linecap='round'/%3E%3C/svg%3E"); }
[data-ui="kids"] .auth-art-copy p { max-width: 30em; margin-top: 18px; font-size: 16px; line-height: 1.8; color: var(--muted); }
[data-ui="kids"] .auth-features { display: grid; grid-template-columns: repeat(2, max-content); gap: 12px; margin: 26px 0 0; padding: 0; list-style: none; }
[data-ui="kids"] .auth-features li { display: flex; align-items: center; gap: 10px; padding: 6px 18px 6px 6px; border-radius: 999px; background: var(--panel); border: 1px solid var(--line); font-size: 15px; font-weight: 800; color: var(--text); box-shadow: 0 3px 10px var(--tint-1); transition: transform .25s cubic-bezier(.2,.8,.2,1); }
[data-ui="kids"] .auth-features li:hover { transform: translateY(-3px) rotate(-1deg); }
[data-ui="kids"] .auth-features i { width: 34px; height: 34px; border-radius: 50%; background: var(--raised) center / 30px no-repeat; }
[data-ui="kids"] .sticker-robot { background-image: url("/static/assets/luotu/s-robot.webp") !important; }
[data-ui="kids"] .sticker-kitten { background-image: url("/static/assets/luotu/s-kitten.webp") !important; }
[data-ui="kids"] .sticker-orange { background-image: url("/static/assets/luotu/s-orange.webp") !important; }
[data-ui="kids"] .sticker-corgi { background-image: url("/static/assets/luotu/s-corgi.webp") !important; }
[data-ui="kids"] .auth-art-copy .auth-hand { display: block; width: max-content; margin-top: 30px; font: 700 21px/1.5 var(--hand); color: var(--accent); transform: rotate(-4deg); transform-origin: left; }

[data-ui="kids"] .auth-form { position: relative; width: 100%; max-width: 440px; margin: 40px auto 0; padding: 44px 40px 32px; background: var(--panel); border: 2px solid var(--soft-line); border-radius: 32px; box-shadow: var(--pop-shadow); }
[data-ui="kids"] .auth-form::before { content: ""; position: absolute; top: -62px; right: 22px; width: 104px; height: 104px; background: url("/static/assets/luotu/logo.webp") center / contain no-repeat; filter: drop-shadow(0 10px 12px var(--tint-3)); transform: rotate(8deg); animation: lt-peek 5s ease-in-out infinite; pointer-events: none; }
[data-ui="kids"] .auth-form::after { content: ""; position: absolute; top: 22px; left: 40px; width: 14px; height: 6px; border-radius: 6px; background: #7b5cf5; box-shadow: 20px 0 0 #f2741f, 40px 0 0 #f5c542, 60px 0 0 #6fa8f5; }
@keyframes lt-peek { 0%, 100% { transform: rotate(8deg) translateY(0); } 50% { transform: rotate(2deg) translateY(-6px); } }
[data-ui="kids"] .auth-form > .eyebrow { display: block; margin-top: 6px; font-size: 12px; color: var(--pop-ink); letter-spacing: .14em; }
[data-ui="kids"] .auth-form h2 { margin: 10px 0 6px; font-size: 34px; font-weight: 900; letter-spacing: .02em; color: var(--text); }
[data-ui="kids"] .auth-form > p { font-size: 14px; color: var(--muted); }
[data-ui="kids"] .auth-form label { margin-top: 20px; font-size: 14px; font-weight: 800; color: var(--text); }
[data-ui="kids"] .auth-form input { margin-top: 8px; padding: 14px 16px; border: 2px solid var(--line); border-radius: 16px; background: var(--input); color: var(--text); font-size: 15px; transition: border-color .2s, box-shadow .2s, background .2s; }
[data-ui="kids"] .auth-form input::placeholder { font-weight: 400; }
[data-ui="kids"] .auth-form input:hover { border-color: var(--strong-line); }
[data-ui="kids"] .auth-form input:focus { outline: none; border-color: var(--accent); background: var(--panel); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 14%, transparent); }
[data-ui="kids"] .auth-submit { margin-top: 26px; padding: 16px 26px; font-size: 16px; }
[data-ui="kids"] .auth-form > .text-button { margin-top: 16px; font-size: 14px; font-weight: 800; color: var(--accent); }
[data-ui="kids"] .auth-form > .text-button:hover { color: var(--pop-ink); }
[data-ui="kids"] .auth-form .form-error:not(:empty) { margin-top: 14px; padding: 10px 14px; border-radius: 12px; background: color-mix(in srgb, var(--danger) 12%, var(--panel)); color: var(--danger); font-size: 13px; }
[data-ui="kids"] .auth-footer { position: static; max-width: 440px; margin: 20px auto 0; text-align: center; font-size: 12px; line-height: 1.8; color: var(--muted); }

@media (max-width: 1180px) {
  [data-ui="kids"] .auth-screen { grid-template-columns: minmax(0, 1fr) minmax(340px, .9fr); }
  [data-ui="kids"] .auth-art { grid-template-columns: 1fr; }
  [data-ui="kids"] .auth-art > video, [data-ui="kids"] .auth-stage-tag, [data-ui="kids"] .auth-sticker { display: none; }
}
@media (max-width: 860px) {
  [data-ui="kids"] .auth-screen { display: flex; flex-direction: column; align-items: stretch; gap: 30px; padding: 128px 20px 40px; }
  [data-ui="kids"] .auth-art { display: block; }
  [data-ui="kids"] .auth-art-copy { text-align: center; }
  [data-ui="kids"] .auth-art-copy h1 { font-size: clamp(30px, 8vw, 40px); }
  [data-ui="kids"] .auth-art-copy p { margin-inline: auto; font-size: 15px; }
  [data-ui="kids"] .auth-features { justify-content: center; }
  [data-ui="kids"] .auth-art-copy .auth-hand { display: none; }
  [data-ui="kids"] .auth-form-wrap { min-height: 0; max-width: none; margin: 0; padding: 0; }
  [data-ui="kids"] .auth-form-wrap .wordmark { top: 18px; left: 20px; font-size: 18px; margin: 0; }
  [data-ui="kids"] .auth-form-wrap .wordmark .brand-mark { width: 44px; height: 44px; }
  [data-ui="kids"] .auth-home-link { top: 76px; right: auto; left: 50%; transform: translateX(-50%); min-height: 32px; padding: 0 14px; font-size: 12px; margin: 0; }
  [data-ui="kids"] .auth-home-link:hover { transform: translateX(-50%) translateY(-2px); }
  [data-ui="kids"] .auth-form { margin: 52px auto 0; padding: 38px 24px 26px; }
  [data-ui="kids"] .auth-form h2 { font-size: 30px; }
  [data-ui="kids"] .auth-form input { font-size: 16px; }
}
@media (max-width: 420px) {
  [data-ui="kids"] .auth-features { grid-template-columns: 1fr 1fr; gap: 8px; }
  [data-ui="kids"] .auth-features li { font-size: 13px; padding-right: 10px; }
  [data-ui="kids"] .auth-art-copy p { display: none; }
}

/* ---------- Phones ---------- */
@media (max-width: 700px) {
  /* The sidebar is hidden on phones, so the brand moves into the top bar. */
  [data-ui="kids"] .topbar .breadcrumb { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; }
  [data-ui="kids"] .topbar .breadcrumb::before { content: ""; flex: none; width: 30px; height: 30px; margin-right: 6px; background: url("/static/assets/luotu/logo.webp") center / contain no-repeat; }
  [data-ui="kids"] .mobile-nav { flex-wrap: nowrap !important; overflow-x: auto; justify-content: flex-start !important; gap: 4px !important; padding: 6px 8px calc(6px + env(safe-area-inset-bottom)); background: color-mix(in srgb, var(--panel) 94%, transparent); border-top: 2px solid var(--soft-line); box-shadow: 0 -6px 20px var(--tint-1); backdrop-filter: blur(12px); scrollbar-width: none; }
  [data-ui="kids"] .mobile-nav button, [data-ui="kids"] .mobile-nav a { flex: none; display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; min-width: 54px; min-height: 52px; padding: 4px 6px; border-radius: 14px; color: var(--muted); font-size: 11px; font-weight: 800; }
  [data-ui="kids"] .mobile-nav [hidden] { display: none; }
  [data-ui="kids"] .mobile-nav button::before, [data-ui="kids"] .mobile-nav a::before { content: var(--icon, "✨"); font: 19px/1 var(--emoji); }
  [data-ui="kids"] .mobile-nav .active { background: var(--accent-soft); color: var(--accent); }
  [data-ui="kids"] .mobile-nav [data-view="creative"] { --icon: "✨"; }
  [data-ui="kids"] .mobile-nav [data-view="media"] { --icon: "🔍"; }
  [data-ui="kids"] .mobile-nav [data-view="create"] { --icon: "🎬"; }
  [data-ui="kids"] .mobile-nav [data-view="library"] { --icon: "🖼️"; }
  [data-ui="kids"] .mobile-nav [data-view="music"] { --icon: "🎵"; }
  [data-ui="kids"] .mobile-nav [data-view="image"] { --icon: "🎨"; }
  [data-ui="kids"] .mobile-nav [data-view="tts"] { --icon: "🎤"; }
  [data-ui="kids"] .mobile-nav #mobile-admin { --icon: "⚙️"; }
  [data-ui="kids"] .mobile-nav #mobile-sign-out { --icon: "👋"; }
}

/* ---------- Admin pages ---------- */
[data-ui="kids"] .auth-card { border: 2px solid var(--soft-line); border-radius: 30px; box-shadow: var(--pop-shadow); background: var(--panel); }
[data-ui="kids"] .brand { font-weight: 900; }
[data-ui="kids"] .admin-rail { background: var(--sidebar); border-right: 2px solid var(--soft-line); }
[data-ui="kids"] .rail-link { border-radius: 14px; font-weight: 700; }