/* ===================== Design tokens ===================== */
:root {
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --transition: 180ms cubic-bezier(.4,0,.2,1);

  /* light theme (default) */
  --bg: #F5F5F8;
  --bg-soft: #EDEDF2;
  --sidebar-bg: rgba(255,255,255,.72);
  --card-bg: #FFFFFF;
  --card-bg-2: #FBFBFD;
  --border: #E6E6EC;
  --border-soft: #EFEFF4;
  --text: #17171C;
  --text-2: #6E6E7A;
  --text-3: #9C9CA8;
  --shadow-sm: 0 1px 2px rgba(20,20,30,.05);
  --shadow-md: 0 6px 20px rgba(20,20,30,.08);
  --shadow-lg: 0 16px 40px rgba(20,20,30,.14);
  --success: #17A768;
  --success-soft: #E4F7EE;
  --danger: #E5484D;
  --danger-soft: #FCE9E7;
  --warning: #D5803B;
  --warning-soft: #FBEBDE;
  --overlay: rgba(15,15,20,.45);
}

[data-theme="dark"] {
  --bg: #0E0F13;
  --bg-soft: #14151B;
  --sidebar-bg: rgba(20,21,28,.75);
  --card-bg: #17181F;
  --card-bg-2: #1C1E27;
  --border: #272932;
  --border-soft: #22232B;
  --text: #F1F1F6;
  --text-2: #A6A6B3;
  --text-3: #74747F;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow-md: 0 6px 24px rgba(0,0,0,.5);
  --shadow-lg: 0 20px 50px rgba(0,0,0,.55);
  --success: #34D399;
  --success-soft: rgba(52,211,153,.14);
  --danger: #F87171;
  --danger-soft: rgba(248,113,113,.14);
  --warning: #FBBF6B;
  --warning-soft: rgba(251,191,107,.14);
  --overlay: rgba(0,0,0,.6);
}

[data-theme="midnight"] {
  --bg: #060913;
  --bg-soft: #0C1122;
  --sidebar-bg: rgba(10,15,32,.78);
  --card-bg: #0D142B;
  --card-bg-2: #121A33;
  --border: rgba(125,160,255,.16);
  --border-soft: rgba(125,160,255,.09);
  --text: #E8EEFF;
  --text-2: #9FB0D8;
  --text-3: #6B7CA8;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.5);
  --shadow-md: 0 8px 28px rgba(0,10,40,.6);
  --shadow-lg: 0 22px 55px rgba(0,10,40,.7);
  --success: #3DDC97;
  --success-soft: rgba(61,220,151,.14);
  --danger: #FF6B81;
  --danger-soft: rgba(255,107,129,.14);
  --warning: #FFC46B;
  --warning-soft: rgba(255,196,107,.14);
  --overlay: rgba(2,4,12,.72);
}

[data-theme="sepia"] {
  --bg: #F6EFE2;
  --bg-soft: #EFE5D3;
  --sidebar-bg: rgba(253,248,238,.8);
  --card-bg: #FDF8EE;
  --card-bg-2: #F8F1E3;
  --border: #E2D5BE;
  --border-soft: #EDE3D2;
  --text: #3A3125;
  --text-2: #7A6A54;
  --text-3: #A2917A;
  --shadow-sm: 0 1px 2px rgba(90,70,40,.06);
  --shadow-md: 0 6px 20px rgba(90,70,40,.1);
  --shadow-lg: 0 16px 40px rgba(90,70,40,.16);
  --success: #4C8B45;
  --success-soft: rgba(76,139,69,.14);
  --danger: #C0492F;
  --danger-soft: rgba(192,73,47,.13);
  --warning: #B8792B;
  --warning-soft: rgba(184,121,43,.14);
  --overlay: rgba(50,38,22,.42);
}

[data-theme="forest"] {
  --bg: #0B1512;
  --bg-soft: #10201B;
  --sidebar-bg: rgba(14,32,26,.8);
  --card-bg: #12241E;
  --card-bg-2: #163029;
  --border: rgba(120,220,180,.15);
  --border-soft: rgba(120,220,180,.08);
  --text: #E6F5EC;
  --text-2: #9FC4B2;
  --text-3: #6D9483;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.45);
  --shadow-md: 0 8px 26px rgba(0,20,12,.55);
  --shadow-lg: 0 20px 50px rgba(0,20,12,.65);
  --success: #4ADE80;
  --success-soft: rgba(74,222,128,.14);
  --danger: #FB7185;
  --danger-soft: rgba(251,113,133,.14);
  --warning: #FBBF24;
  --warning-soft: rgba(251,191,36,.14);
  --overlay: rgba(2,12,8,.65);
}

/* Accent color themes */
:root, [data-accent="blue"] { --accent: #2783DE; --accent-2: #6FB4FF; --accent-contrast: #ffffff; --accent-soft: rgba(39,131,222,.12); }
[data-accent="purple"] { --accent: #7C5CFC; --accent-2: #B79BFF; --accent-contrast: #ffffff; --accent-soft: rgba(124,92,252,.14); }
[data-accent="green"]  { --accent: #16A360; --accent-2: #5EE6A6; --accent-contrast: #ffffff; --accent-soft: rgba(22,163,96,.13); }
[data-accent="orange"] { --accent: #EA7317; --accent-2: #FFC078; --accent-contrast: #ffffff; --accent-soft: rgba(234,115,23,.14); }
[data-accent="pink"]   { --accent: #E5499A; --accent-2: #FF9DC8; --accent-contrast: #ffffff; --accent-soft: rgba(229,73,154,.13); }
[data-theme="dark"][data-accent="blue"]   { --accent-soft: rgba(111,180,255,.16); }
[data-theme="dark"][data-accent="purple"] { --accent-soft: rgba(183,155,255,.16); }
[data-theme="dark"][data-accent="green"]  { --accent-soft: rgba(94,230,166,.14); }
[data-theme="dark"][data-accent="orange"] { --accent-soft: rgba(255,192,120,.16); }
[data-theme="dark"][data-accent="pink"]   { --accent-soft: rgba(255,157,200,.16); }
[data-accent="red"]    { --accent: #E5484D; --accent-2: #FF9490; --accent-contrast: #ffffff; --accent-soft: rgba(229,72,77,.13); }
[data-accent="teal"]   { --accent: #0EA5A5; --accent-2: #6EE7DE; --accent-contrast: #ffffff; --accent-soft: rgba(14,165,165,.13); }
[data-accent="indigo"] { --accent: #4F5BD5; --accent-2: #9AA3FF; --accent-contrast: #ffffff; --accent-soft: rgba(79,91,213,.14); }
[data-accent="gold"]   { --accent: #C99A2E; --accent-2: #FFDE8A; --accent-contrast: #ffffff; --accent-soft: rgba(201,154,46,.15); }
[data-accent="cyan"]   { --accent: #0EA5E9; --accent-2: #7DD3FC; --accent-contrast: #ffffff; --accent-soft: rgba(14,165,233,.13); }
[data-theme="dark"][data-accent="red"]    { --accent-soft: rgba(255,148,144,.16); }
[data-theme="dark"][data-accent="teal"]   { --accent-soft: rgba(110,231,222,.15); }
[data-theme="dark"][data-accent="indigo"] { --accent-soft: rgba(154,163,255,.16); }
[data-theme="dark"][data-accent="gold"]   { --accent-soft: rgba(255,222,138,.16); }
[data-theme="dark"][data-accent="cyan"]   { --accent-soft: rgba(125,211,252,.16); }
[data-accent="azure"]   { --accent: #0369A1; --accent-2: #7DD3FC; --accent-contrast: #ffffff; --accent-soft: rgba(3,105,161,.14); }
[data-accent="mint"]    { --accent: #12B886; --accent-2: #63E6BE; --accent-contrast: #ffffff; --accent-soft: rgba(18,184,134,.14); }
[data-accent="lime"]    { --accent: #74B816; --accent-2: #C0EB75; --accent-contrast: #ffffff; --accent-soft: rgba(116,184,22,.15); }
[data-accent="amber"]   { --accent: #D97706; --accent-2: #FCD34D; --accent-contrast: #ffffff; --accent-soft: rgba(217,119,6,.15); }
[data-accent="coral"]   { --accent: #F0533D; --accent-2: #FFA8A0; --accent-contrast: #ffffff; --accent-soft: rgba(240,83,61,.14); }
[data-accent="crimson"] { --accent: #BE123C; --accent-2: #FB7185; --accent-contrast: #ffffff; --accent-soft: rgba(190,18,60,.14); }
[data-accent="magenta"] { --accent: #C026D3; --accent-2: #E879F9; --accent-contrast: #ffffff; --accent-soft: rgba(192,38,211,.14); }
[data-accent="slate"]   { --accent: #64748B; --accent-2: #CBD5E1; --accent-contrast: #ffffff; --accent-soft: rgba(100,116,139,.16); }

/* brighter accents on dark-ish themes */
[data-theme="dark"][data-accent="azure"], [data-theme="midnight"][data-accent="azure"], [data-theme="forest"][data-accent="azure"] { --accent: #38BDF8; --accent-2: #A5E4FF; --accent-soft: rgba(56,189,248,.16); }
[data-theme="midnight"][data-accent="blue"], [data-theme="forest"][data-accent="blue"] { --accent: #5AA9FF; --accent-2: #9CCBFF; --accent-soft: rgba(90,169,255,.16); }
[data-theme="midnight"][data-accent="purple"], [data-theme="forest"][data-accent="purple"] { --accent: #A78BFA; --accent-2: #D8C7FF; --accent-soft: rgba(167,139,250,.17); }
[data-theme="midnight"][data-accent="green"], [data-theme="forest"][data-accent="green"] { --accent: #34D399; --accent-2: #8FF3C8; --accent-soft: rgba(52,211,153,.16); }
[data-theme="midnight"][data-accent="crimson"], [data-theme="forest"][data-accent="crimson"] { --accent: #FB7185; --accent-2: #FDA4AF; --accent-soft: rgba(251,113,133,.17); }
[data-theme="midnight"][data-accent="magenta"], [data-theme="forest"][data-accent="magenta"] { --accent: #E879F9; --accent-2: #F5C6FF; --accent-soft: rgba(232,121,249,.17); }
[data-theme="midnight"][data-accent="slate"], [data-theme="forest"][data-accent="slate"] { --accent: #94A3B8; --accent-2: #E2E8F0; --accent-soft: rgba(148,163,184,.18); }
[data-theme="midnight"][data-accent="amber"], [data-theme="forest"][data-accent="amber"] { --accent: #FBBF24; --accent-2: #FDE68A; --accent-soft: rgba(251,191,36,.17); }
[data-theme="midnight"][data-accent="mint"], [data-theme="forest"][data-accent="mint"] { --accent: #2DD4BF; --accent-2: #99F6E4; --accent-soft: rgba(45,212,191,.16); }
[data-theme="midnight"][data-accent="lime"], [data-theme="forest"][data-accent="lime"] { --accent: #A3E635; --accent-2: #D9F99D; --accent-soft: rgba(163,230,53,.17); }
[data-theme="midnight"][data-accent="coral"], [data-theme="forest"][data-accent="coral"] { --accent: #FF7A66; --accent-2: #FFC4BB; --accent-soft: rgba(255,122,102,.17); }
[data-theme="midnight"][data-accent="gold"], [data-theme="forest"][data-accent="gold"] { --accent: #EAC85A; --accent-2: #FFE9A8; --accent-soft: rgba(234,200,90,.17); }
[data-theme="midnight"][data-accent="teal"], [data-theme="forest"][data-accent="teal"] { --accent: #2DD4BF; --accent-2: #99F6E4; --accent-soft: rgba(45,212,191,.16); }
[data-theme="midnight"][data-accent="cyan"], [data-theme="forest"][data-accent="cyan"] { --accent: #38BDF8; --accent-2: #A5E4FF; --accent-soft: rgba(56,189,248,.16); }
[data-theme="midnight"][data-accent="pink"], [data-theme="forest"][data-accent="pink"] { --accent: #F472B6; --accent-2: #FBCFE8; --accent-soft: rgba(244,114,182,.17); }
[data-theme="midnight"][data-accent="red"], [data-theme="forest"][data-accent="red"] { --accent: #F87171; --accent-2: #FCA5A5; --accent-soft: rgba(248,113,113,.17); }
[data-theme="midnight"][data-accent="indigo"], [data-theme="forest"][data-accent="indigo"] { --accent: #818CF8; --accent-2: #C7D2FE; --accent-soft: rgba(129,140,248,.17); }
[data-theme="midnight"][data-accent="orange"], [data-theme="forest"][data-accent="orange"] { --accent: #FB923C; --accent-2: #FED7AA; --accent-soft: rgba(251,146,60,.17); }

* { box-sizing: border-box; }
html { color-scheme: light; }
html[data-theme="dark"], html[data-theme="midnight"], html[data-theme="forest"] { color-scheme: dark; }
html[data-theme="sepia"] { color-scheme: light; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  transition: background var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
::selection { background: var(--accent-soft); }

/* thin themed scrollbar */
* { scrollbar-width: thin; scrollbar-color: var(--border) transparent; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; }

/* ===================== Decorative background ===================== */
body {
  background-image:
    radial-gradient(circle at 1px 1px, var(--border) 1px, transparent 0);
  background-size: 28px 28px;
}
[data-theme="dark"] body, [data-theme="midnight"] body, [data-theme="forest"] body { background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,.06) 1px, transparent 0); }
html[data-fx-grid="off"] body { background-image: none; }
.bg-decor { position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.bg-blob { position: absolute; border-radius: 50%; filter: blur(60px); opacity: .55; background: radial-gradient(circle at 30% 30%, var(--accent), transparent 70%); animation: floatBlob 16s ease-in-out infinite alternate; mix-blend-mode: normal; }
[data-theme="dark"] .bg-blob, [data-theme="midnight"] .bg-blob, [data-theme="forest"] .bg-blob { opacity: .4; filter: blur(80px); }
.bg-blob.b1 { width: 560px; height: 560px; top: -180px; left: -140px; }
.bg-blob.b2 { width: 500px; height: 500px; bottom: -180px; right: -120px; background: radial-gradient(circle at 60% 40%, var(--accent-2), transparent 70%); animation-duration: 20s; animation-delay: -6s; }
.bg-blob.b3 { width: 380px; height: 380px; top: 40%; left: 46%; background: radial-gradient(circle at 50% 50%, var(--accent-2), transparent 70%); opacity: .3; animation-duration: 24s; animation-delay: -3s; }
.bg-blob.b4 { width: 340px; height: 340px; top: 8%; right: 22%; background: radial-gradient(circle at 40% 60%, var(--accent), transparent 70%); opacity: .28; animation-duration: 18s; animation-delay: -9s; }

/* Sweeping light beam */
.bg-beam { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.bg-beam::before { content: ""; position: absolute; top: -60%; left: -30%; width: 45%; height: 220%; background: linear-gradient(100deg, transparent, var(--accent-soft) 35%, rgba(255,255,255,.10) 50%, var(--accent-soft) 65%, transparent); transform: rotate(14deg); filter: blur(22px); animation: beamSweep 9s ease-in-out infinite; }
@keyframes beamSweep { 0% { left: -40%; opacity: 0; } 15% { opacity: 1; } 85% { opacity: 1; } 100% { left: 120%; opacity: 0; } }

/* Cursor spotlight */
.cursor-glow { position: fixed; top: 0; left: 0; width: 420px; height: 420px; margin: -210px 0 0 -210px; border-radius: 50%; pointer-events: none; z-index: 2; opacity: 0; background: radial-gradient(circle, var(--accent-soft) 0%, transparent 62%); filter: blur(12px); transition: opacity 320ms ease; will-change: transform; }
.cursor-glow.visible { opacity: 1; }
@keyframes floatBlob {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -30px) scale(1.12); }
  100% { transform: translate(-30px, 35px) scale(0.94); }
}
@media (prefers-reduced-motion: reduce) { .bg-blob { animation: none; } }

#fx-particles { position: fixed; inset: 0; z-index: 0; pointer-events: none; }

.app { position: relative; z-index: 1; display: flex; min-height: 100vh; }

@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }

/* ===================== Effects toggles ===================== */
html[data-fx-particles="off"] #fx-particles { display: none; }
html[data-fx-blobs="off"] .bg-decor { display: none; }
html[data-fx-glow="off"] .brand-mark { animation: none; }
html[data-fx-glow="off"] .topbar h1 { animation: none; background: none; color: var(--text); -webkit-text-fill-color: var(--text); }
html[data-fx-glow="off"] .btn-primary::after { display: none; }
html[data-fx-glow="off"] .nav-item.active::before { box-shadow: none; }
html[data-fx-glow="off"] .links-table tbody tr:hover .code-cell { text-shadow: none; }
html[data-fx-glow="off"] .theme-switch { animation: none; }
html[data-fx-cards="off"] .stat-card, html[data-fx-cards="off"] .panel { animation: none; opacity: 1; }
html[data-fx-cards="off"] .stat-card::after { display: none; }
html[data-fx-cards="off"] .stat-card:hover .stat-icon { transform: none; box-shadow: none; }
html[data-fx-cards="off"] .empty-icon { animation: none; }

.fx-toggle-row { display: flex; align-items: center; justify-content: space-between; padding: 6px 8px; border-radius: var(--radius-sm); background: var(--bg-soft); font-size: 12px; }
.fx-toggle-label { font-size: 12.5px; color: var(--text-2); }
.fx-switch { position: relative; width: 36px; height: 20px; border-radius: 999px; border: none; background: var(--border); cursor: pointer; transition: background var(--transition); flex-shrink: 0; }
.fx-switch::after { content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; transition: left var(--transition); box-shadow: 0 1px 3px rgba(0,0,0,.25); }
.fx-switch.on { background: var(--accent); }
.fx-switch.on::after { left: 18px; }

/* ===================== Sidebar ===================== */
.sidebar {
  width: 232px;
  flex-shrink: 0;
  background: var(--sidebar-bg);
  backdrop-filter: blur(16px) saturate(160%);
  border-right: 1px solid var(--border);
  padding: 22px 16px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.brand { font-weight: 800; font-size: 17px; padding: 0 8px; display: flex; align-items: center; gap: 8px; letter-spacing: -.2px; }
.brand-mark { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; border-radius: 10px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); box-shadow: 0 4px 14px var(--accent-soft); font-size: 15px; animation: glowPulse 2.6s ease-in-out infinite; }
@keyframes glowPulse { 0%,100% { box-shadow: 0 4px 14px var(--accent-soft); } 50% { box-shadow: 0 4px 22px var(--accent), 0 0 0 6px var(--accent-soft); } }
.brand-text { background: linear-gradient(90deg, var(--text), var(--text-2)); -webkit-background-clip: text; background-clip: text; color: transparent; -webkit-text-fill-color: transparent; }

.nav { display: flex; flex-direction: column; gap: 3px; }
.nav-item { position: relative; padding: 9px 12px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 500; color: var(--text-2); transition: background var(--transition), color var(--transition), transform var(--transition); }
.nav-item:hover { background: var(--bg-soft); color: var(--text); transform: translateX(2px); }
.nav-item.active { background: var(--accent-soft); color: var(--accent); font-weight: 700; box-shadow: inset 0 0 0 1px var(--accent-soft); }
.nav-item.active::before { content: ""; position: absolute; left: -8px; top: 50%; transform: translateY(-50%); width: 4px; height: 16px; border-radius: 4px; background: linear-gradient(180deg, var(--accent), var(--accent-2)); box-shadow: 0 0 8px var(--accent); }

.sidebar-section { margin-top: auto; display: flex; flex-direction: column; gap: 12px; padding-top: 16px; border-top: 1px solid var(--border-soft); }
.sidebar-label { font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--text-3); padding: 0 8px; }

.theme-toggle-row { display: flex; align-items: center; justify-content: space-between; padding: 6px 8px; border-radius: var(--radius-sm); background: var(--bg-soft); }
.theme-toggle-label { font-size: 13px; color: var(--text-2); display: flex; align-items: center; gap: 6px; }
.theme-switch { position: relative; width: 44px; height: 24px; border-radius: 999px; border: none; background: var(--border); cursor: pointer; transition: background var(--transition); flex-shrink: 0; }
.theme-switch::after { content: "☀️"; position: absolute; top: 2px; left: 2px; width: 20px; height: 20px; border-radius: 50%; background: #fff; display: flex; align-items: center; justify-content: center; font-size: 11px; transition: left var(--transition), background var(--transition); box-shadow: 0 1px 3px rgba(0,0,0,.25); }
[data-theme="dark"] .theme-switch { background: var(--accent); }
[data-theme="dark"] .theme-switch::after { left: 22px; content: "🌙"; background: #1C1E27; }

.accent-swatches { display: flex; gap: 8px; padding: 0 8px; }
.accent-swatch { width: 22px; height: 22px; border-radius: 50%; border: 2px solid transparent; cursor: pointer; padding: 0; transition: transform var(--transition), border-color var(--transition); }
.accent-swatch:hover { transform: scale(1.12); }
.accent-swatch.active { border-color: var(--text); transform: scale(1.15); }
.accent-swatch[data-accent="blue"] { background: linear-gradient(135deg, #2783DE, #6FB4FF); }
.accent-swatch[data-accent="purple"] { background: linear-gradient(135deg, #7C5CFC, #B79BFF); }
.accent-swatch[data-accent="green"] { background: linear-gradient(135deg, #16A360, #5EE6A6); }
.accent-swatch[data-accent="orange"] { background: linear-gradient(135deg, #EA7317, #FFC078); }
.accent-swatch[data-accent="pink"] { background: linear-gradient(135deg, #E5499A, #FF9DC8); }
.accent-swatch[data-accent="red"] { background: linear-gradient(135deg, #E5484D, #FF9490); }
.accent-swatch[data-accent="teal"] { background: linear-gradient(135deg, #0EA5A5, #6EE7DE); }
.accent-swatch[data-accent="indigo"] { background: linear-gradient(135deg, #4F5BD5, #9AA3FF); }
.accent-swatch[data-accent="gold"] { background: linear-gradient(135deg, #C99A2E, #FFDE8A); }
.accent-swatch[data-accent="cyan"] { background: linear-gradient(135deg, #0EA5E9, #7DD3FC); }

/* ===================== Main ===================== */
.main { flex: 1; padding: 36px 48px 60px; min-width: 0; }
.topbar { position: relative; padding-bottom: 4px; }
.topbar h1 { position: relative; display: inline-block; font-size: 28px; margin: 0 0 6px; font-weight: 800; letter-spacing: -.4px; background: linear-gradient(90deg, var(--text) 10%, var(--accent) 60%, var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; -webkit-text-fill-color: transparent; background-size: 200% auto; animation: titleShine 6s linear infinite; }
@keyframes titleShine { 0% { background-position: 0% 50%; } 100% { background-position: 200% 50%; } }
.subtitle { color: var(--text-2); margin: 0 0 26px; font-size: 14px; }

.stat-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 28px; }
.stat-card { position: relative; background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 20px; box-shadow: var(--shadow-sm); transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition); overflow: hidden; opacity: 0; animation: fadeUp 520ms cubic-bezier(.2,.8,.25,1) forwards; }
.stat-card:nth-child(1) { animation-delay: 40ms; }
.stat-card:nth-child(2) { animation-delay: 110ms; }
.stat-card:nth-child(3) { animation-delay: 180ms; }
.stat-card:nth-child(4) { animation-delay: 250ms; }
.stat-card::before { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, var(--accent-soft), transparent 60%); opacity: 0; transition: opacity var(--transition); }
.stat-card::after { content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; background: linear-gradient(135deg, var(--accent), transparent 50%); opacity: 0; -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); -webkit-mask-composite: xor; mask-composite: exclude; transition: opacity var(--transition); pointer-events: none; }
.stat-card:hover { transform: translateY(-4px) scale(1.01); box-shadow: var(--shadow-md), 0 0 0 1px var(--accent-soft); border-color: transparent; }
.stat-card:hover::before { opacity: 1; }
.stat-card:hover::after { opacity: 1; }
.stat-card:hover .stat-icon { transform: scale(1.12) rotate(-6deg); box-shadow: 0 0 0 6px var(--accent-soft); }
.stat-head { position: relative; display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--text-2); margin-bottom: 12px; }
.stat-icon { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; border-radius: 9px; background: var(--accent-soft); font-size: 14px; transition: transform var(--transition), box-shadow var(--transition); }
.stat-value { position: relative; font-size: 32px; font-weight: 800; margin-bottom: 4px; letter-spacing: -.5px; background: linear-gradient(135deg, var(--text), var(--text) 40%, var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; -webkit-text-fill-color: transparent; }
.stat-sub { position: relative; font-size: 12px; color: var(--text-3); }

.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 22px; align-items: start; width: 100%; }

.panel { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px; box-shadow: var(--shadow-sm); transition: box-shadow var(--transition), border-color var(--transition); opacity: 0; animation: fadeUp 560ms cubic-bezier(.2,.8,.25,1) forwards; animation-delay: 200ms; }
.panel-head { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 18px; flex-wrap: wrap; gap: 12px; }
.panel-title { font-size: 16px; font-weight: 800; letter-spacing: -.2px; }
.panel-desc { font-size: 13px; color: var(--text-2); margin-top: 3px; }
.panel-actions { display: flex; gap: 8px; }

.btn { position: relative; border-radius: 10px; border: 1px solid transparent; padding: 9px 15px; font-size: 13px; font-weight: 600; cursor: pointer; white-space: nowrap; transition: transform var(--transition), box-shadow var(--transition), background var(--transition), filter var(--transition); font-family: var(--font); overflow: hidden; }
.btn:active { transform: scale(.96); }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: var(--accent-contrast); box-shadow: 0 4px 14px var(--accent-soft); }
.btn-primary::after { content: ""; position: absolute; top: 0; left: -60%; width: 40%; height: 100%; background: linear-gradient(120deg, transparent, rgba(255,255,255,.55), transparent); transform: skewX(-20deg); animation: btnShimmer 3.2s ease-in-out infinite; }
@keyframes btnShimmer { 0% { left: -60%; } 40% { left: 130%; } 100% { left: 130%; } }
.btn-primary:hover { filter: brightness(1.08); box-shadow: 0 8px 22px var(--accent-soft), 0 0 0 3px var(--accent-soft); transform: translateY(-1px); }
.btn-secondary { background: var(--card-bg-2); border-color: var(--border); color: var(--text); }
.btn-secondary:hover { background: var(--bg-soft); border-color: var(--accent-soft); }
.btn-outline { background: transparent; border-color: var(--border); color: var(--text); width: 100%; margin-top: 12px; }
.btn-danger { background: var(--danger-soft); color: var(--danger); border-color: var(--danger-soft); }
.btn-danger:hover { filter: brightness(1.05); }
.btn-small { padding: 6px 11px; font-size: 12px; border-radius: 8px; }

.filter-row { display: flex; gap: 10px; margin-bottom: 18px; align-items: center; flex-wrap: wrap; }
.search-input { flex: 1; min-width: 200px; padding: 10px 13px; border: 1px solid var(--border); border-radius: 10px; font-size: 13px; background: var(--card-bg-2); color: var(--text); transition: border-color var(--transition), box-shadow var(--transition); font-family: var(--font); }
.search-input:focus, .status-select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.status-select { padding: 10px 11px; border: 1px solid var(--border); border-radius: 10px; font-size: 13px; background: var(--card-bg-2); color: var(--text); font-family: var(--font); }
.toggle { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-2); cursor: pointer; }
.toggle input { display: none; }
.toggle-track { width: 36px; height: 21px; border-radius: 999px; background: var(--border); position: relative; transition: background var(--transition); }
.toggle-thumb { position: absolute; top: 2px; left: 2px; width: 17px; height: 17px; border-radius: 50%; background: #fff; transition: left var(--transition); box-shadow: 0 1px 2px rgba(0,0,0,.25); }
.toggle input:checked + .toggle-track { background: var(--accent); }
.toggle input:checked + .toggle-track .toggle-thumb { left: 17px; }

.empty-state { text-align: center; padding: 64px 20px; color: var(--text-2); }
.empty-icon { font-size: 34px; margin-bottom: 14px; display: inline-block; animation: bob 3s ease-in-out infinite; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
.empty-title { font-weight: 700; color: var(--text); margin-bottom: 6px; font-size: 15px; }
.empty-desc { font-size: 13px; margin-bottom: 22px; }

.links-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.links-table th { text-align: left; color: var(--text-3); font-weight: 700; padding: 9px 10px; border-bottom: 1px solid var(--border); font-size: 11px; text-transform: uppercase; letter-spacing: .04em; }
.links-table td { padding: 12px 10px; border-bottom: 1px solid var(--border-soft); vertical-align: middle; }
.links-table tbody tr { transition: background var(--transition); }
.links-table tbody tr:hover { background: var(--bg-soft); }
.links-table tr:last-child td { border-bottom: none; }
.links-table tbody td:first-child { position: relative; }
.links-table tbody td:first-child::before { content: ""; position: absolute; left: -10px; top: 6px; bottom: 6px; width: 0; background: linear-gradient(180deg, var(--accent), var(--accent-2)); transition: width var(--transition); border-radius: 3px; }
.links-table tbody tr:hover td:first-child::before { width: 3px; }
.code-cell { font-weight: 700; color: var(--accent); transition: text-shadow var(--transition); }
.links-table tbody tr:hover .code-cell { text-shadow: 0 0 12px var(--accent-soft); }
.code-sub { color: var(--text-3); font-size: 12px; display: block; margin-top: 2px; font-weight: 500; }
.target-cell { max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-2); }
.status-pill { display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.status-pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.status-active { background: var(--success-soft); color: var(--success); }
.status-active::before { animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }
.status-expired { background: var(--danger-soft); color: var(--danger); }
.status-scheduled { background: var(--warning-soft); color: var(--warning); }
.status-archived { background: var(--bg-soft); color: var(--text-3); }
.row-actions { display: flex; gap: 6px; justify-content: flex-end; }
.icon-btn { border: 1px solid var(--border); background: var(--card-bg-2); border-radius: 8px; padding: 6px 9px; cursor: pointer; font-size: 13px; transition: transform var(--transition), border-color var(--transition), background var(--transition); }
.icon-btn:hover { background: var(--accent-soft); border-color: var(--accent-soft); transform: translateY(-1px); }

.usage-panel { position: sticky; top: 20px; }
.usage-head { display: flex; justify-content: space-between; align-items: center; font-weight: 800; margin-bottom: 14px; font-size: 15px; }
.usage-row { display: flex; justify-content: space-between; font-size: 13px; padding: 8px 0; border-bottom: 1px solid var(--border-soft); }
.usage-label { color: var(--text-2); }
.usage-value { font-weight: 700; }
.usage-hint { font-size: 12px; color: var(--text-3); margin-top: 10px; line-height: 1.6; }

.features-card { margin-top: 16px; background: var(--success-soft); border-radius: var(--radius-md); padding: 15px; }
.features-title { font-weight: 800; font-size: 13px; margin-bottom: 4px; color: var(--text); }
.features-desc { font-size: 12px; color: var(--success); font-weight: 500; }

/* ===================== Modals ===================== */
.modal-overlay { position: fixed; inset: 0; background: var(--overlay); backdrop-filter: blur(3px); align-items: center; justify-content: center; z-index: 50; padding: 20px; }
.modal-overlay:not([hidden]) { display: flex; animation: overlayIn var(--transition); }
@keyframes overlayIn { from { opacity: 0; } to { opacity: 1; } }
.modal { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); width: 460px; max-width: 100%; max-height: 88vh; overflow: auto; box-shadow: var(--shadow-lg); animation: modalIn 220ms cubic-bezier(.2,.9,.25,1); }
@keyframes modalIn { from { opacity: 0; transform: translateY(10px) scale(.97); } to { opacity: 1; transform: translateY(0) scale(1); } }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 18px 22px; border-bottom: 1px solid var(--border); }
.modal-head h2 { font-size: 16px; margin: 0; font-weight: 800; }
.modal-close { border: none; background: var(--bg-soft); width: 28px; height: 28px; border-radius: 8px; font-size: 14px; cursor: pointer; color: var(--text-2); transition: background var(--transition); }
.modal-close:hover { background: var(--danger-soft); color: var(--danger); }
.modal-body { padding: 20px 22px; display: flex; flex-direction: column; gap: 13px; }
.modal-foot { padding: 15px 22px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-2); flex: 1; font-weight: 600; }
.field input, .field-row input, textarea {
  padding: 10px 13px; border: 1px solid var(--border); border-radius: 10px; font-size: 13px;
  font-family: var(--font); color: var(--text); background: var(--card-bg-2);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.field input:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.field-row { display: flex; gap: 12px; }
.field-check { display: flex; align-items: center; gap: 8px; font-weight: 500; color: var(--text-2); font-size: 13px; cursor: pointer; }
.field-check input { width: 15px; height: 15px; accent-color: var(--accent); }
.form-error { color: var(--danger); font-size: 12px; min-height: 14px; }
textarea { width: 100%; resize: vertical; }
.hint { font-size: 12px; color: var(--text-2); line-height: 1.6; }
.hint code { background: var(--bg-soft); padding: 1px 5px; border-radius: 4px; }

.qr-body { align-items: center; text-align: center; }
#qr-image { width: 220px; height: 220px; border: 1px solid var(--border); border-radius: var(--radius-md); background: #fff; padding: 6px; }
#qr-url { word-break: break-all; }

#batch-results { font-size: 12px; max-height: 160px; overflow: auto; }
.batch-ok { color: var(--success); }
.batch-fail { color: var(--danger); }

.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%);
  background: var(--text); color: var(--bg); padding: 11px 20px; border-radius: 10px; font-size: 13px; z-index: 100;
  box-shadow: var(--shadow-lg); animation: toastIn 220ms cubic-bezier(.2,.9,.25,1);
}
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, 10px); } to { opacity: 1; transform: translate(-50%, 0); } }

@media (max-width: 860px) {
  .app { flex-direction: column; }
  .sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); flex-direction: row; align-items: center; flex-wrap: wrap; }
  .sidebar-section { margin-top: 0; border-top: none; }
  .main { padding: 22px; }
  .stat-cards { grid-template-columns: repeat(2, 1fr); }
  .content-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   v3: 主题模式选择器 / 更多主题色 / 更多特效
   ============================================================ */

/* 主题模式分段选择器 */
.mode-seg {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  padding: 4px;
  margin-bottom: 14px;
  border-radius: var(--radius-md);
  background: var(--bg-soft);
  border: 1px solid var(--border-soft);
}
.mode-btn {
  border: 0;
  cursor: pointer;
  padding: 6px 0;
  font-size: 14px;
  line-height: 1;
  border-radius: 8px;
  background: transparent;
  color: var(--text-2);
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}
.mode-btn:hover { transform: translateY(-1px) scale(1.06); background: var(--accent-soft); }
.mode-btn.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 4px 14px var(--accent-soft), inset 0 0 0 1px rgba(255,255,255,.18);
  transform: translateY(-1px);
}

/* 主题色色板：网格排布，支持 18 色 */
.accent-swatches {
  display: grid !important;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}
.accent-swatch {
  width: 100%;
  aspect-ratio: 1 / 1;
  height: auto;
  min-height: 20px;
  position: relative;
  overflow: hidden;
}
.accent-swatch::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(140deg, rgba(255,255,255,.45), transparent 55%);
  opacity: 0;
  transition: opacity var(--transition);
}
.accent-swatch:hover::after { opacity: 1; }
.accent-swatch[data-accent="azure"]   { background: linear-gradient(135deg, #0369A1, #7DD3FC); }
.accent-swatch[data-accent="mint"]    { background: linear-gradient(135deg, #12B886, #63E6BE); }
.accent-swatch[data-accent="lime"]    { background: linear-gradient(135deg, #74B816, #C0EB75); }
.accent-swatch[data-accent="amber"]   { background: linear-gradient(135deg, #D97706, #FCD34D); }
.accent-swatch[data-accent="coral"]   { background: linear-gradient(135deg, #F0533D, #FFA8A0); }
.accent-swatch[data-accent="crimson"] { background: linear-gradient(135deg, #BE123C, #FB7185); }
.accent-swatch[data-accent="magenta"] { background: linear-gradient(135deg, #C026D3, #E879F9); }
.accent-swatch[data-accent="slate"]   { background: linear-gradient(135deg, #64748B, #CBD5E1); }

.fx-reset { width: 100%; margin-top: 12px; justify-content: center; }

/* ---------- 更鲜艳的配色 ---------- */
.panel {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--card-bg), var(--card-bg-2));
}
.panel::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent));
  background-size: 200% 100%;
  animation: hueSlide 6s linear infinite;
  opacity: .95;
}
@keyframes hueSlide { to { background-position: 200% 0; } }
html[data-fx-glow="off"] .panel::before { animation: none; }

.panel-head { background: linear-gradient(180deg, var(--accent-soft), transparent); }
.sidebar { background: linear-gradient(180deg, var(--sidebar-bg), var(--sidebar-bg)), radial-gradient(120% 60% at 0% 0%, var(--accent-soft), transparent 70%); }
.links-table thead th { background: linear-gradient(180deg, var(--accent-soft), transparent); }
.links-table tbody tr:hover { background: linear-gradient(90deg, var(--accent-soft), transparent 70%); }
.code-cell { color: var(--accent); }
.status-pill { backdrop-filter: blur(4px); }

/* ---------- 统计卡片：彩色配色 + 3D 倾斜 + 聚光 ---------- */
.stat-cards { perspective: 1000px; }
.stat-card {
  position: relative;
  transform-style: preserve-3d;
  border: 1px solid var(--border);
  background:
    linear-gradient(160deg, var(--hue-soft, var(--accent-soft)), transparent 62%),
    linear-gradient(180deg, var(--card-bg), var(--card-bg-2));
}
html[data-fx-rainbow="on"] .stat-card.hue-1 { --hue: #6366F1; --hue-2: #A5B4FC; --hue-soft: rgba(99,102,241,.18); }
html[data-fx-rainbow="on"] .stat-card.hue-2 { --hue: #10B981; --hue-2: #6EE7B7; --hue-soft: rgba(16,185,129,.18); }
html[data-fx-rainbow="on"] .stat-card.hue-3 { --hue: #F59E0B; --hue-2: #FCD34D; --hue-soft: rgba(245,158,11,.18); }
html[data-fx-rainbow="on"] .stat-card.hue-4 { --hue: #EC4899; --hue-2: #F9A8D4; --hue-soft: rgba(236,72,153,.18); }
html[data-fx-rainbow="on"] .stat-card .stat-value {
  background: linear-gradient(120deg, var(--hue, var(--accent)), var(--hue-2, var(--accent-2)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}
html[data-fx-rainbow="on"] .stat-card .stat-icon {
  background: linear-gradient(135deg, var(--hue, var(--accent)), var(--hue-2, var(--accent-2)));
  color: #fff;
  box-shadow: 0 4px 14px var(--hue-soft, var(--accent-soft));
}
.stat-glow {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  transition: opacity 260ms ease;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 50%), var(--hue-soft, var(--accent-soft)), transparent 68%);
}
.stat-card:hover .stat-glow { opacity: 1; }
html[data-fx-glow="off"] .stat-glow { display: none; }

/* ---------- 点击涟漪 ---------- */
.btn, .icon-btn, .accent-swatch, .mode-btn { position: relative; overflow: hidden; }
.ripple-dot {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  background: rgba(255,255,255,.55);
  pointer-events: none;
  animation: rippleOut 620ms ease-out forwards;
  mix-blend-mode: screen;
}
@keyframes rippleOut { to { transform: scale(2.6); opacity: 0; } }

/* ---------- 特效开关 ---------- */
html[data-fx-beam="off"] .bg-beam { display: none; }
html[data-fx-cursor="off"] .cursor-glow { display: none; }
html[data-fx-tilt="off"] .stat-card { transform: none !important; }