/* ───────────────────────────────────────────────────────────────────────────
   AdaptIQ — shared design system (theme.css)  ·  "SmartCampus" dashboard look
   White sidebar shell (blue active) + light content, colored stat tiles, soft cards,
   Inter type, blue/indigo accent. Base components are also used by the OMR
   pages (top-header layout). Page <style> blocks add page-specific rules.
   ─────────────────────────────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#f4f6fb; --card:#ffffff; --card2:#f1f5fb;
  --ink:#0f172a; --ink2:#334155; --mut:#64748b;
  --acc:#2563eb; --acc2:#5b8cff; --ok:#16a34a; --bad:#dc2626; --amber:#d97706;
  --line:#e7ebf3; --navy:#0f1729;
  --grad:linear-gradient(135deg,#5b8cff,#7c5bff);
  --grad-ok:linear-gradient(135deg,#16a34a,#15803d);
  /* light saffron velvet content canvas (pairs with the royal-navy sidebar) */
  --saffron-canvas:radial-gradient(950px 560px at 82% -150px,#ffe7b8 0%,rgba(255,231,184,0) 60%),linear-gradient(165deg,#fbeacb 0%,#f5dcae 55%,#efd09a 100%);
  --sh-card:0 1px 2px rgba(90,60,15,.07),0 8px 22px -6px rgba(120,80,25,.20);
  --sh-pop:0 18px 50px -16px rgba(16,24,40,.28);
  --ring:0 0 0 3px rgba(37,99,235,.14);
  --r:14px;
  /* ── themable shell tokens (overridden by [data-theme=*] palettes below) ── */
  --btn-edge:#5340b8;                                         /* 3D bottom edge of primary buttons */
  --side-bg:linear-gradient(180deg,#1f2c5c 0%,#162042 100%);  /* sidebar background */
  --side-active:rgba(255,255,255,.11);                        /* active nav row tint */
  --canvas:var(--saffron-canvas);                             /* main content background */
  --top-bg:rgba(255,250,240,.80);                             /* sticky top header tint */
  --top-line:rgba(180,140,70,.18);                            /* top header bottom border */
}
html{-webkit-text-size-adjust:100%}
body{font-family:'Inter','Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;letter-spacing:-.011em;line-height:1.5}
h1,h2,h3,h4{letter-spacing:-.02em;color:var(--ink);font-weight:700;line-height:1.25}
a{color:var(--acc);text-decoration:none}a:hover{text-decoration:underline}
::selection{background:rgba(91,140,255,.22)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#cfd9e8;border-radius:9px;border:2px solid transparent;background-clip:padding-box}
::-webkit-scrollbar-thumb:hover{background:#b8c5d8;background-clip:padding-box}
.spacer{flex:1}.hidden{display:none!important}.muted{color:var(--mut);font-size:13px}

/* ── top header (OMR pages) ── */
header{background:var(--header-bg,#fff);padding:11px 22px;display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
header b{font-weight:700;letter-spacing:-.01em}
.logo,header img.brand,img.brand{height:46px;width:auto;border-radius:8px;object-fit:contain;display:block}

/* ── pills ── */
.pill{background:var(--card2);padding:6px 13px;border-radius:999px;font-size:12px;color:var(--mut);font-weight:500}
.pill b{color:var(--acc);font-weight:700}

/* ── layout helpers ── */
.wrap{max-width:1040px;margin:0 auto;padding:22px 20px}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:end}
.center{min-height:90vh;display:grid;place-items:center}

/* ── card ── */
.card{background:var(--card);border:1px solid var(--card-bd,var(--line));border-radius:var(--r);padding:20px;margin-bottom:16px;box-shadow:var(--sh-card);-webkit-backdrop-filter:var(--card-blur,none);backdrop-filter:var(--card-blur,none);transition:box-shadow .2s ease,transform .2s ease}
.card h3{font-size:14px;font-weight:700;margin-bottom:10px;color:var(--ink)}

/* ── forms ── */
label{font-size:12px;color:var(--mut);display:block;margin:8px 0 6px;font-weight:500}
input,select,textarea{font-family:inherit;width:100%;background:var(--input-bg,#fff);border:1px solid var(--line);color:var(--ink);padding:10px 12px;border-radius:10px;font-size:14px;transition:border-color .15s,box-shadow .15s}
input::placeholder,textarea::placeholder{color:#9aa6b8}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--acc);box-shadow:var(--ring)}

/* ── buttons ── */
/* 3D raised buttons: solid bottom edge (thickness) + inset top gloss + ambient
   shadow; lift on hover, press flat on active. */
.btn{font-family:inherit;background:var(--grad);color:var(--btn-ink,#fff);border:0;padding:10px 18px;border-radius:var(--btn-r,11px);font-size:14px;font-weight:600;cursor:pointer;transition:transform .1s ease,box-shadow .15s ease,filter .15s ease;box-shadow:var(--btn-sh,inset 0 1px 0 rgba(255,255,255,.30),0 3px 0 var(--btn-edge),0 6px 14px -3px rgba(91,140,255,.45))}
.btn:hover{filter:brightness(1.05);transform:translateY(-1px);box-shadow:inset 0 1px 0 rgba(255,255,255,.34),0 4px 0 var(--btn-edge),0 12px 22px -5px rgba(91,140,255,.55)}
.btn:active{transform:translateY(2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.18),0 1px 0 var(--btn-edge),0 3px 8px -3px rgba(91,140,255,.4)}
.btn:focus-visible{outline:0;box-shadow:var(--ring),0 3px 0 var(--btn-edge)}
.btn.sm{padding:7px 13px;font-size:13px;border-radius:9px}
.btn.ghost{background:var(--btn2-bg,#fff);color:var(--btn2-ink,var(--ink2));border:1px solid var(--btn2-bd,var(--line));box-shadow:var(--btn2-sh,0 2px 0 #e3e8f1,0 4px 10px -3px rgba(16,24,40,.12))}
.btn.ghost:hover{background:var(--card2);filter:none;transform:translateY(-1px);box-shadow:0 3px 0 #e3e8f1,0 8px 16px -4px rgba(16,24,40,.16)}
.btn.ghost:active{transform:translateY(1px);box-shadow:0 1px 0 #e3e8f1,0 2px 6px -3px rgba(16,24,40,.12)}
.btn.ok{background:var(--grad-ok);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.26),0 3px 0 #0f6e34,0 6px 14px -3px rgba(22,163,74,.42)}
.btn.ok:hover{filter:brightness(1.05);transform:translateY(-1px);box-shadow:inset 0 1px 0 rgba(255,255,255,.3),0 4px 0 #0f6e34,0 12px 22px -5px rgba(22,163,74,.52)}
.btn.ok:active{transform:translateY(2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.18),0 1px 0 #0f6e34,0 3px 8px -3px rgba(22,163,74,.4)}
.btn.bad{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.24),0 3px 0 #b21c1c,0 6px 14px -3px rgba(220,38,38,.42)}
.btn.bad:active{transform:translateY(2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.16),0 1px 0 #b21c1c,0 3px 8px -3px rgba(220,38,38,.4)}
.btn:disabled{opacity:.5;cursor:default;filter:none;box-shadow:none;transform:none}

/* ── dashboard shell (generator) ── */
.app{display:flex;min-height:100vh}
.side{width:240px;flex-shrink:0;background:var(--side-bg);color:var(--side-ink,#cdd5e6);-webkit-backdrop-filter:var(--side-blur,none);backdrop-filter:var(--side-blur,none);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow:auto}
.side .brand{display:flex;align-items:center;gap:10px;padding:15px 18px;border-bottom:1px solid rgba(255,255,255,.09)}
.side .brand img{height:44px;background:#fff;border-radius:7px;padding:3px}
.side .brand .bt{font-weight:800;font-size:15px;color:var(--side-ttl,#fff);line-height:1.05;letter-spacing:-.01em}
.side .brand .bs{font-size:9px;color:var(--side-mut,#9fb0d6);letter-spacing:.14em;margin-top:2px}
.side .sec{font-size:10px;letter-spacing:.12em;color:var(--side-mut,#7f8fba);padding:16px 18px 6px;font-weight:700}
.side .nav{display:flex;align-items:center;gap:12px;padding:9px 18px;font-size:13.5px;color:var(--side-ink,#bcc6df);cursor:pointer;border-left:3px solid transparent;text-decoration:none}
.side .nav:hover{background:rgba(255,255,255,.07);color:var(--side-ttl,#fff);text-decoration:none}
.side .nav.on{background:var(--side-active);color:var(--side-ttl,#fff);border-left-color:var(--acc2);font-weight:600}
.side .nav .d{width:18px;text-align:center;font-size:15px}
.side .usr{margin-top:auto;display:flex;gap:10px;align-items:center;padding:13px 18px;border-top:1px solid rgba(255,255,255,.09)}
.side .av{width:34px;height:34px;border-radius:50%;background:var(--grad);display:grid;place-items:center;color:#fff;font-weight:700;font-size:13px;flex-shrink:0}
.side .un{font-size:13px;font-weight:600;color:var(--side-ttl,#fff);max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.side .ur{font-size:11px;color:var(--side-mut,#9fb0d6)}
.main{flex:1;min-width:0;display:flex;flex-direction:column;background:var(--canvas);background-attachment:local}
.top{padding:14px 26px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;border-bottom:1px solid var(--top-line);background:var(--top-bg);-webkit-backdrop-filter:saturate(1.3) blur(10px);backdrop-filter:saturate(1.3) blur(10px);position:sticky;top:0;z-index:10}
.top h1{font-size:19px;font-weight:700}.top .tsub{font-size:12.5px;color:var(--mut);margin-top:1px}
.content{padding:22px 26px 80px;max-width:1100px;width:100%}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:15px;margin-bottom:18px}
.stat{background:var(--stat-bg,var(--card));border:1px solid var(--card-bd,var(--line));border-radius:14px;padding:16px;box-shadow:var(--sh-card);-webkit-backdrop-filter:var(--card-blur,none);backdrop-filter:var(--card-blur,none)}
.stat .ico{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-size:19px}
.stat .n{font-size:23px;font-weight:800;margin-top:11px;letter-spacing:-.02em;color:var(--ink)}
.stat .l{font-size:12px;color:var(--ink2)}
.tabs{display:flex;gap:8px;margin:2px 0 16px;flex-wrap:wrap}
/* OMR pages reuse the same sidebar via a fixed shell (no DOM restructure) */
body.appshell{padding-left:240px;background:var(--canvas);background-attachment:fixed;min-height:100vh}
body.appshell .side{position:fixed;left:0;top:0;height:100vh;z-index:40}
body.appshell header{background:var(--top-bg);-webkit-backdrop-filter:saturate(1.3) blur(10px);backdrop-filter:saturate(1.3) blur(10px);border-bottom-color:var(--top-line)}
@media(max-width:820px){.side{display:none}.top{padding:12px 16px}.content{padding:16px 16px 70px}body.appshell{padding-left:0}}

/* ═══════════════════════════════════════════════════════════════════════════
   THEME PALETTES — pick via the floating switcher (sets <html data-theme="…">).
   Each block only re-tints the shared tokens; every component reads them.
   Default (no attribute) = "SmartCampus" (saffron velvet + royal navy).
   ═══════════════════════════════════════════════════════════════════════════ */

/* Each block re-tints the shared tokens (incl. --side-*, --card-blur, --btn-sh)
   so glass / neon / neumorphic / clay effects render across ALL pages. */

/* 2 · EduVantage — navy sidebar, cool blue-white canvas, blue→violet */
html[data-theme="eduvantage"]{
  --bg:#eef1f8;--card:#fff;--card2:#eef2fa;--ink:#1a2540;--ink2:#33405e;--mut:#69748f;
  --acc:#2f6bf0;--acc2:#2f6bf0;--ok:#1aa463;--bad:#e23b50;--amber:#e0901a;--line:#e2e7f1;
  --grad:linear-gradient(135deg,#2f6bf0,#8b5cf6);--grad-ok:linear-gradient(135deg,#1aa463,#15803d);
  --sh-card:0 2px 4px rgba(15,23,42,.05),0 10px 25px -8px rgba(15,23,42,.12);--ring:0 0 0 3px rgba(47,107,240,.18);--btn-edge:#5b34c4;
  --side-bg:linear-gradient(180deg,#27324f,#1b2238);--side-ink:#c4cde2;--side-mut:#8b99bd;--side-ttl:#fff;--side-active:rgba(255,255,255,.12);
  --canvas:radial-gradient(900px 520px at 84% -160px,#e7edfb 0%,rgba(231,237,251,0) 60%),linear-gradient(165deg,#f3f6fc,#eaeff9);
  --top-bg:rgba(255,255,255,.85);--top-line:#e2e7f1;--header-bg:#fff;
}

/* 3 · Aurora Glass — glassmorphism over an aurora gradient */
html[data-theme="aurora"]{
  --bg:#eef0fb;--card:rgba(255,255,255,.45);--card2:rgba(255,255,255,.5);--ink:#1a2440;--ink2:#3a4566;--mut:#566080;
  --acc:#7c3aed;--acc2:#7c3aed;--line:rgba(255,255,255,.55);
  --grad:linear-gradient(135deg,#06b6d4,#7c3aed);--grad-ok:linear-gradient(135deg,#10b981,#059669);
  --sh-card:0 12px 30px -14px rgba(60,40,120,.3);--ring:0 0 0 3px rgba(124,58,237,.2);--btn-edge:#5b21b6;--btn-sh:0 8px 20px -8px rgba(80,40,160,.5);
  --card-blur:blur(16px);--card-bd:rgba(255,255,255,.65);--stat-bg:rgba(255,255,255,.45);--input-bg:rgba(255,255,255,.6);--header-bg:rgba(255,255,255,.4);
  --side-bg:rgba(255,255,255,.34);--side-blur:blur(18px);--side-ink:#37415a;--side-mut:#6b7691;--side-ttl:#16203a;--side-active:rgba(255,255,255,.6);
  --canvas:radial-gradient(420px 300px at 12% 8%,#7af0e0 0,rgba(122,240,224,0) 60%),radial-gradient(440px 320px at 88% 20%,#ffb0d8 0,rgba(255,176,216,0) 60%),radial-gradient(520px 380px at 60% 100%,#b9a8ff 0,rgba(185,168,255,0) 60%),linear-gradient(135deg,#d6f7f2,#efe6ff);
  --top-bg:rgba(255,255,255,.3);--btn2-bg:rgba(255,255,255,.55);--btn2-ink:#3a4566;--btn2-bd:rgba(255,255,255,.7);--btn2-sh:none;
}

/* 4 · Midnight Glass — frosted dark */
html[data-theme="midnight"]{
  --bg:#0b1120;--card:rgba(255,255,255,.05);--card2:rgba(255,255,255,.08);--ink:#f1f5f9;--ink2:#cbd5e1;--mut:#94a3b8;
  --acc:#38bdf8;--acc2:#38bdf8;--ok:#34d399;--bad:#fb7185;--amber:#fbbf24;--line:rgba(255,255,255,.08);
  --grad:linear-gradient(135deg,#22d3ee,#818cf8);--grad-ok:linear-gradient(135deg,#34d399,#10b981);
  --sh-card:0 14px 36px -18px rgba(0,0,0,.7);--ring:0 0 0 3px rgba(56,189,248,.28);--btn-edge:#3730a3;--btn-sh:0 8px 22px -8px rgba(0,0,0,.6);--btn-ink:#04121f;
  --card-blur:blur(16px);--card-bd:rgba(255,255,255,.1);--stat-bg:rgba(255,255,255,.045);--input-bg:rgba(255,255,255,.06);--header-bg:rgba(13,19,38,.6);
  --side-bg:rgba(255,255,255,.05);--side-blur:blur(18px);--side-ink:#cbd5e1;--side-mut:#8c98b5;--side-ttl:#f1f5f9;--side-active:rgba(255,255,255,.12);
  --canvas:radial-gradient(460px 300px at 14% 10%,#1e3a8a 0,rgba(30,58,138,0) 60%),radial-gradient(460px 320px at 90% 90%,#6d28d9 0,rgba(109,40,217,0) 60%),linear-gradient(160deg,#0b1120,#0d1326);
  --top-bg:rgba(13,19,38,.5);--btn2-bg:rgba(255,255,255,.08);--btn2-ink:#e2e8f0;--btn2-bd:rgba(255,255,255,.14);--btn2-sh:none;
}

/* 5 · Soft Matte — muted terracotta, no gloss */
html[data-theme="matte"]{
  --bg:#f1efe9;--card:#faf8f3;--card2:#efe9df;--ink:#2d2a32;--ink2:#4a4550;--mut:#7a7080;
  --acc:#c2683f;--acc2:#c2683f;--line:#e3ddd2;
  --grad:linear-gradient(135deg,#c2683f,#a85433);--grad-ok:linear-gradient(135deg,#7c9070,#5f7355);
  --sh-card:0 1px 2px rgba(60,40,20,.05);--ring:0 0 0 3px rgba(194,104,63,.18);--btn-edge:#8a4427;--btn-sh:0 2px 5px -1px rgba(80,50,30,.25);--btn-r:9px;--r:12px;
  --stat-bg:#faf8f3;--card-bd:#e7e0d5;--input-bg:#fffdf8;--header-bg:#faf8f3;
  --side-bg:linear-gradient(180deg,#2c2a31,#221f27);--side-ink:#cfc9d6;--side-mut:#9b94a6;--side-ttl:#fff;--side-active:rgba(255,255,255,.08);
  --canvas:#f1efe9;--top-bg:rgba(241,239,233,.85);--top-line:#e3ddd2;--btn2-bg:#efe9df;--btn2-ink:#5b5263;--btn2-bd:#e3ddd2;--btn2-sh:none;
}

/* 6 · Neumorphic — soft extruded UI */
html[data-theme="neu"]{
  --bg:#e0e5ec;--card:#e0e5ec;--card2:#e0e5ec;--ink:#404a5c;--ink2:#5b6473;--mut:#8a93a3;
  --acc:#5a67d8;--acc2:#5a67d8;--line:transparent;
  --grad:linear-gradient(135deg,#6b7cff,#5a67d8);--grad-ok:linear-gradient(135deg,#48bb78,#38a169);
  --sh-card:7px 7px 14px #b9bfca,-7px -7px 14px #fff;--ring:0 0 0 3px rgba(90,103,216,.18);--btn-edge:transparent;--btn-sh:5px 5px 11px #b9bfca,-5px -5px 11px #fff;--r:15px;
  --card-bd:transparent;--stat-bg:#e0e5ec;--input-bg:#e0e5ec;--header-bg:#e0e5ec;
  --side-bg:#e0e5ec;--side-ink:#5b6473;--side-mut:#9aa4b3;--side-ttl:#3a4250;--side-active:#e0e5ec;
  --canvas:#e0e5ec;--top-bg:rgba(224,229,236,.85);--top-line:#cfd5de;--btn2-bg:#e0e5ec;--btn2-ink:#5b6473;--btn2-bd:transparent;--btn2-sh:5px 5px 11px #b9bfca,-5px -5px 11px #fff;
}

/* 7 · Claymorphic — puffy pastel clay */
html[data-theme="clay"]{
  --bg:#eef0ff;--card:#fbfbff;--card2:#f0ecff;--ink:#3d3a66;--ink2:#5a5588;--mut:#8985b5;
  --acc:#6c5ce7;--acc2:#6c5ce7;--line:#e7e4f7;
  --grad:linear-gradient(135deg,#a18cff,#6c5ce7);--grad-ok:linear-gradient(135deg,#5be7b0,#33c98b);
  --sh-card:inset 0 -6px 12px rgba(108,92,231,.12),inset 0 5px 9px #fff,0 14px 24px -10px rgba(108,92,231,.5);--ring:0 0 0 3px rgba(108,92,231,.2);
  --btn-edge:transparent;--btn-sh:inset 0 -4px 8px rgba(76,60,180,.32),inset 0 3px 5px rgba(255,255,255,.5),0 10px 18px -6px rgba(108,92,231,.55);--btn-r:15px;--r:21px;
  --card-bd:transparent;--stat-bg:#fbfbff;--input-bg:#fff;--header-bg:#f4f1ff;
  --side-bg:linear-gradient(180deg,#7b6bf0,#6c5ce7);--side-ink:#e2ddff;--side-mut:#bcb2f7;--side-ttl:#fff;--side-active:rgba(255,255,255,.2);
  --canvas:linear-gradient(160deg,#eef0ff,#e7e3ff);--top-bg:rgba(245,243,255,.85);--top-line:#e3e0f5;--btn2-bg:#f0ecff;--btn2-ink:#5a5588;--btn2-bd:transparent;--btn2-sh:inset 0 -3px 6px rgba(108,92,231,.14),inset 0 2px 4px #fff;
}

/* 8 · Neon Cyber — dark neon glow */
html[data-theme="neon"]{
  --bg:#07070f;--card:rgba(10,16,30,.66);--card2:rgba(0,229,255,.08);--ink:#e6f1ff;--ink2:#b9c4e0;--mut:#7b86a8;
  --acc:#00ffd0;--acc2:#00ffd0;--ok:#00ffae;--bad:#ff5d8f;--amber:#ffcf4d;--line:rgba(0,229,255,.14);
  --grad:linear-gradient(135deg,#00ffd0,#00a3ff);--grad-ok:linear-gradient(135deg,#00ffae,#00cc88);
  --sh-card:0 0 20px -4px rgba(0,255,208,.4),inset 0 0 14px rgba(0,255,208,.06);--ring:0 0 0 3px rgba(0,255,208,.3);--btn-edge:transparent;--btn-sh:0 0 18px -2px rgba(0,255,208,.65);--btn-ink:#03121a;
  --card-bd:rgba(0,255,208,.28);--stat-bg:rgba(10,16,30,.55);--input-bg:rgba(10,16,30,.6);--header-bg:rgba(7,7,15,.7);
  --side-bg:#0c0c18;--side-ink:#a5b0d0;--side-mut:#6b7299;--side-ttl:#e6f1ff;--side-active:rgba(0,255,208,.09);
  --canvas:radial-gradient(440px 300px at 12% 8%,rgba(0,255,208,.18),rgba(0,255,208,0) 60%),radial-gradient(440px 320px at 90% 92%,rgba(255,0,229,.18),rgba(255,0,229,0) 60%),linear-gradient(160deg,#07070f,#0a0a16);
  --top-bg:rgba(7,7,15,.6);--top-line:rgba(0,255,208,.16);--btn2-bg:transparent;--btn2-ink:#00ffd0;--btn2-bd:#00ffd0;--btn2-sh:0 0 12px -2px rgba(0,255,208,.4);
}

/* 9 · Material You (Flutter M3) — tonal surfaces, pill controls */
html[data-theme="m3"]{
  --bg:#fef7ff;--card:#fff;--card2:#f7f2fa;--ink:#1d1b20;--ink2:#49454f;--mut:#79747e;
  --acc:#6750a4;--acc2:#6750a4;--line:#ece6f0;
  --grad:linear-gradient(135deg,#6750a4,#7d5260);--grad-ok:linear-gradient(135deg,#2e7d32,#1b5e20);
  --sh-card:0 1px 3px rgba(0,0,0,.08);--ring:0 0 0 3px rgba(103,80,164,.2);--btn-edge:transparent;--btn-sh:0 1px 3px rgba(0,0,0,.2);--btn-r:999px;--r:16px;
  --card-bd:#ece6f0;--stat-bg:#f7f2fa;--input-bg:#fff;--header-bg:#fef7ff;
  --side-bg:#f3edf7;--side-ink:#49454f;--side-mut:#79747e;--side-ttl:#1d1b20;--side-active:#e8def8;
  --canvas:#fef7ff;--top-bg:rgba(254,247,255,.9);--top-line:#ece6f0;--btn2-bg:transparent;--btn2-ink:#6750a4;--btn2-bd:#79747e;--btn2-sh:none;
}

/* 10 · Cupertino / visionOS (Flutter Cupertino) — light vibrancy */
html[data-theme="ios"]{
  --bg:#f2f2f7;--card:rgba(255,255,255,.8);--card2:rgba(120,120,128,.12);--ink:#1c1c1e;--ink2:#3c3c43;--mut:#8e8e93;
  --acc:#007aff;--acc2:#007aff;--line:rgba(60,60,67,.12);
  --grad:linear-gradient(135deg,#0a84ff,#5e5ce6);--grad-ok:linear-gradient(135deg,#34c759,#248a3d);
  --sh-card:0 10px 30px -14px rgba(0,0,0,.2);--ring:0 0 0 4px rgba(0,122,255,.18);--btn-edge:transparent;--btn-sh:0 4px 14px -4px rgba(0,122,255,.5);--btn-r:13px;--r:18px;
  --card-blur:blur(20px);--card-bd:rgba(255,255,255,.7);--stat-bg:rgba(255,255,255,.74);--input-bg:rgba(255,255,255,.85);--header-bg:rgba(255,255,255,.6);
  --side-bg:rgba(255,255,255,.72);--side-blur:blur(22px);--side-ink:#3c3c43;--side-mut:#8e8e93;--side-ttl:#000;--side-active:rgba(0,122,255,.12);
  --canvas:#f2f2f7;--top-bg:rgba(255,255,255,.6);--top-line:rgba(60,60,67,.12);--btn2-bg:rgba(120,120,128,.14);--btn2-ink:#007aff;--btn2-bd:transparent;--btn2-sh:none;
}

/* 11 · Sunset Mesh — vibrant gradient mesh, plum sidebar */
html[data-theme="sunset"]{
  --bg:#ffe7ef;--card:rgba(255,255,255,.9);--card2:#fdeef5;--ink:#2a1a3a;--ink2:#574463;--mut:#7c6a8a;
  --acc:#f9508a;--acc2:#f9508a;--line:#f1e3ee;
  --grad:linear-gradient(135deg,#ff8c42,#f9508a);--grad-ok:linear-gradient(135deg,#34c759,#1f9d4d);
  --sh-card:0 14px 30px -14px rgba(120,40,90,.42);--ring:0 0 0 3px rgba(249,80,138,.2);--btn-edge:#b3325f;--btn-sh:0 8px 20px -6px rgba(200,50,110,.5);
  --card-blur:blur(7px);--card-bd:rgba(255,255,255,.8);--stat-bg:rgba(255,255,255,.9);--input-bg:#fff;--header-bg:rgba(255,255,255,.55);
  --side-bg:linear-gradient(180deg,#3a1c71,#5f2c82);--side-ink:#e8d9ff;--side-mut:#bba6e0;--side-ttl:#fff;--side-active:rgba(255,255,255,.16);
  --canvas:radial-gradient(420px 300px at 10% 6%,#ffd089 0,rgba(255,208,137,0) 58%),radial-gradient(440px 320px at 92% 14%,#ff7eb3 0,rgba(255,126,179,0) 58%),radial-gradient(520px 380px at 60% 104%,#9d7bff 0,rgba(157,123,255,0) 58%),linear-gradient(150deg,#ffe7c4,#ffd4e6);
  --top-bg:rgba(255,237,245,.6);--top-line:#f3d9e6;--btn2-bg:#fff;--btn2-ink:#b23a6b;--btn2-bd:#f3d9e6;--btn2-sh:none;
}

/* 12 · Editorial Mono — hairline minimal + gold accent */
html[data-theme="mono"]{
  --bg:#faf9f7;--card:#fff;--card2:#f2efe9;--ink:#161616;--ink2:#3a3a3a;--mut:#6b6b6b;
  --acc:#161616;--acc2:#c8a24a;--line:#e6e3dd;
  --grad:linear-gradient(135deg,#1a1a1a,#000);--grad-ok:linear-gradient(135deg,#2f6b3a,#1e4d27);
  --sh-card:none;--ring:0 0 0 2px #161616;--btn-edge:transparent;--btn-sh:none;--btn-r:4px;--r:4px;
  --card-bd:#161616;--stat-bg:#fff;--input-bg:#fff;--header-bg:#fff;
  --side-bg:#111;--side-ink:#bdbdbd;--side-mut:#7a7a7a;--side-ttl:#fff;--side-active:rgba(255,255,255,.1);
  --canvas:#faf9f7;--top-bg:rgba(250,249,247,.9);--top-line:#e6e3dd;--btn2-bg:#fff;--btn2-ink:#161616;--btn2-bd:#161616;--btn2-sh:none;
}

/* theme-specific shell tweaks that tokens can't express */
html[data-theme="neu"] .side .nav.on{box-shadow:inset 3px 3px 6px #b9bfca,inset -3px -3px 6px #fff;border-left-color:transparent;border-radius:11px;margin:0 10px}
html[data-theme="neu"] input,html[data-theme="neu"] select,html[data-theme="neu"] textarea{box-shadow:inset 3px 3px 6px #b9bfca,inset -3px -3px 6px #fff;border:0}
html[data-theme="neon"] .side .nav.on{box-shadow:inset 0 0 16px rgba(0,255,208,.12)}
html[data-theme="m3"] .side .nav.on{background:#e8def8;border-left-color:transparent;border-radius:999px;margin:2px 10px;padding-left:15px;color:#21005d}
html[data-theme="ios"] .side .nav.on{background:rgba(0,122,255,.12);border-left-color:transparent;border-radius:11px;margin:0 10px;padding-left:15px;color:#007aff}

/* ── floating theme switcher (injected by the page) ── */
.theme-switch{position:fixed;right:18px;bottom:18px;z-index:9999;display:flex;flex-direction:column;align-items:flex-end;gap:10px;font-family:'Inter','Segoe UI',system-ui,sans-serif}
.theme-switch .ts-toggle{width:46px;height:46px;border-radius:50%;border:0;cursor:pointer;background:var(--grad);color:#fff;font-size:20px;line-height:1;box-shadow:var(--sh-pop);display:grid;place-items:center;transition:transform .15s ease}
.theme-switch .ts-toggle:hover{transform:scale(1.06) rotate(15deg)}
.theme-switch .ts-menu{display:none;background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-pop);padding:12px;min-width:190px;max-height:72vh;overflow:auto}
.theme-switch.open .ts-menu{display:block;animation:tsIn .16s ease}
@keyframes tsIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.ts-menu .ts-title{font-size:10px;font-weight:700;color:var(--mut);letter-spacing:.12em;text-transform:uppercase;margin:2px 6px 9px}
.ts-opt{display:flex;align-items:center;gap:11px;padding:8px 9px;border-radius:11px;cursor:pointer;font-size:13.5px;font-weight:500;color:var(--ink);transition:background .12s}
.ts-opt:hover{background:var(--card2)}
.ts-opt.on{background:var(--card2);font-weight:700}
.ts-opt.on .ts-check{opacity:1}
.ts-check{margin-left:auto;color:var(--acc);font-weight:800;opacity:0}
.ts-sw{width:24px;height:24px;border-radius:8px;flex-shrink:0;box-shadow:inset 0 0 0 1.5px rgba(0,0,0,.08)}
@media print{.theme-switch{display:none!important}}