/* ============================================================
   SeqMatrix Design System · theme.css
   Version: 1.0 (2026-08-11)
   Style: 沉稳低饱和 · 蓝紫渐变 · 明快亮色风
   Usage: <link rel="stylesheet" href="theme.css">
   ============================================================ */

/* ========== Design Tokens ========== */
:root{
  /* 背景层 */
  --bg-0:#FFFFFF;
  --bg-1:#F8FAFC;
  --bg-2:#F1F5F9;
  --bg-3:#E2E8F0;

  /* 主色 - 沉稳低饱和 */
  --primary:#1E40AF;       /* 深蓝 Indigo 800 */
  --primary-dim:#3B82F6;
  --primary-light:#E0E7FF; /* 淡蓝紫 */
  --accent:#5B21B6;        /* 深紫 Violet 800 */
  --accent-light:#EDE9FE;
  --accent-2:#DB2777;      /* 深粉 */
  --success:#059669;
  --warning:#D97706;
  --danger:#DC2626;

  /* 文字 */
  --text-0:#0F172A;
  --text-1:#1E293B;
  --text-2:#475569;
  --text-3:#94A3B8;

  /* 边框 / 玻璃 */
  --border:#E2E8F0;
  --border-strong:#CBD5E1;
  --glass:rgba(255,255,255,0.7);
  --glass-strong:rgba(255,255,255,0.9);

  /* 阴影 */
  --shadow-sm:0 1px 2px rgba(15,23,42,0.04),0 1px 3px rgba(15,23,42,0.06);
  --shadow-md:0 4px 16px rgba(15,23,42,0.06),0 2px 4px rgba(15,23,42,0.04);
  --shadow-lg:0 16px 40px rgba(15,23,42,0.08),0 4px 12px rgba(15,23,42,0.04);
  --shadow-glow:0 8px 30px rgba(30,64,175,0.18);
  --shadow-primary:0 4px 14px rgba(30,64,175,0.35);
  --shadow-primary-lg:0 8px 24px rgba(30,64,175,0.5);

  /* 渐变 */
  --grad-primary:linear-gradient(135deg,#1E40AF 0%,#5B21B6 100%);
  --grad-accent:linear-gradient(135deg,#5B21B6 0%,#DB2777 100%);
  --grad-warm:linear-gradient(135deg,#1E40AF 0%,#3B82F6 100%);
  --grad-bg:linear-gradient(180deg,#F0F7FF 0%,#FFFFFF 60%);

  /* 圆角 */
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:20px;
  --radius-xl:32px;
  --radius-pill:999px;

  /* 字体 */
  --font-sans:'Inter','PingFang SC','Microsoft YaHei',-apple-system,sans-serif;
  --font-mono:'JetBrains Mono','SF Mono',monospace;
}

/* ========== Reset & Base ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{
  font-family:var(--font-sans);
  background:var(--bg-0);
  color:var(--text-1);
  line-height:1.6;
  overflow-x:hidden;
  min-height:100vh;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
img,svg{display:block;max-width:100%}
input{font-family:inherit}

/* ========== Layout ========== */
.wrap{position:relative;z-index:1;width:100%;max-width:1320px;margin:0 auto;padding:0 32px}
@media(max-width:768px){.wrap{padding:0 20px}}

/* ========== Background Decorations ========== */
.bg-canvas{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.bg-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(15,23,42,0.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(15,23,42,0.04) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse 80% 50% at 50% 0%,#000 30%,transparent 100%);
  -webkit-mask-image:radial-gradient(ellipse 80% 50% at 50% 0%,#000 30%,transparent 100%);
}
.bg-orb{
  position:absolute;border-radius:50%;filter:blur(80px);
  animation:float 22s ease-in-out infinite;
}
.bg-orb.o1{width:560px;height:560px;background:var(--accent);top:-180px;left:-120px;opacity:0.12}
.bg-orb.o2{width:480px;height:480px;background:var(--primary);top:200px;right:-120px;opacity:0.15}
.bg-orb.o3{width:420px;height:420px;background:var(--accent-2);bottom:-100px;left:30%;opacity:0.10}
@keyframes float{
  0%,100%{transform:translate(0,0) scale(1)}
  33%{transform:translate(40px,-30px) scale(1.05)}
  66%{transform:translate(-30px,40px) scale(0.95)}
}

/* ========== Top Nav ========== */
.nav{
  position:sticky;top:0;z-index:100;
  backdrop-filter:blur(20px) saturate(180%);
  -webkit-backdrop-filter:blur(20px) saturate(180%);
  background:rgba(255,255,255,0.8);
  border-bottom:1px solid var(--border);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:32px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:-0.5px;color:var(--text-0)}
.brand-mark{
  width:32px;height:32px;border-radius:8px;
  background:var(--grad-primary);
  box-shadow:0 4px 12px rgba(30,64,175,0.35);
  display:grid;place-items:center;font-weight:900;color:#FFF;font-size:14px;
}
.nav-menu{display:flex;gap:4px;align-items:center}
.nav-menu a{
  padding:8px 14px;border-radius:8px;font-size:14px;font-weight:500;color:var(--text-2);
  transition:all .2s;
}
.nav-menu a:hover{color:var(--text-0);background:var(--bg-2)}
.nav-menu a.active{color:var(--primary);background:var(--primary-light)}
.nav-cta{display:flex;align-items:center;gap:12px}

/* ========== Buttons ========== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:10px;font-size:14px;font-weight:600;
  transition:all .25s cubic-bezier(.4,0,.2,1);white-space:nowrap;
}
.btn-ghost{color:var(--text-1);border:1px solid var(--border-strong);background:#FFF}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow-sm)}
.btn-primary{
  background:var(--grad-primary);color:#FFF;
  box-shadow:var(--shadow-primary);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-primary-lg)}
.btn-lg{padding:16px 32px;font-size:16px;border-radius:14px}
.btn-pill{border-radius:var(--radius-pill)}

/* ========== Section common ========== */
.section{padding:80px 0;position:relative}
.section-alt{background:var(--bg-1)}
.section-head{text-align:center;margin-bottom:56px}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;
  color:var(--primary);text-transform:uppercase;letter-spacing:2px;margin-bottom:12px;
  background:var(--primary-light);padding:4px 12px;border-radius:var(--radius-pill);
}
.section h2{
  font-size:clamp(32px,4vw,48px);font-weight:800;letter-spacing:-1.5px;line-height:1.2;
  margin-bottom:16px;color:var(--text-0);
}
.section .sub{font-size:17px;color:var(--text-2);max-width:640px;margin:0 auto}

/* ========== Cards (generic) ========== */
.card{
  background:#FFF;border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  transition:all .3s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-light)}
.card-pad{padding:32px 28px}

/* ========== Stat cards ========== */
.stats-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
@media(max-width:1024px){.stats-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:600px){.stats-grid{grid-template-columns:repeat(2,1fr)}}
.stat-card{
  position:relative;padding:28px 20px;
  background:#FFF;border:1px solid var(--border);
  border-radius:var(--radius-lg);
  transition:all .3s;overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.stat-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad-primary);opacity:0;transition:opacity .3s;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-light)}
.stat-card:hover::before{opacity:1}
.stat-num{
  font-family:var(--font-mono);
  font-size:34px;font-weight:800;line-height:1;
  color:var(--text-0);margin-bottom:8px;letter-spacing:-1px;
}
.stat-label{font-size:13px;color:var(--text-2);font-weight:500}
.stat-trend{
  display:inline-flex;align-items:center;gap:4px;
  font-size:11px;color:var(--success);margin-top:8px;font-weight:600;
}
.stat-trend::before{content:'↑';font-weight:900}

/* ========== Scenario cards ========== */
.scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:1024px){.scenario-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.scenario-grid{grid-template-columns:1fr}}
.scenario{
  position:relative;padding:32px 28px;
  background:#FFF;border:1px solid var(--border);
  border-radius:var(--radius-lg);overflow:hidden;
  transition:all .35s cubic-bezier(.4,0,.2,1);cursor:pointer;
  box-shadow:var(--shadow-sm);
}
.scenario::after{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary),transparent);
  opacity:0;transition:opacity .3s;
}
.scenario:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--primary-light)}
.scenario:hover::after{opacity:1}
.scenario-icon{
  width:56px;height:56px;border-radius:14px;
  background:var(--grad-primary);
  display:grid;place-items:center;font-size:28px;
  margin-bottom:20px;
  box-shadow:0 8px 24px rgba(30,64,175,0.3);
}
.scenario h3{font-size:20px;font-weight:700;margin-bottom:10px;letter-spacing:-0.5px;color:var(--text-0)}
.scenario p{font-size:14px;color:var(--text-2);margin-bottom:20px;line-height:1.6}
.scenario .more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--primary);
}
.scenario .more::after{content:'→';transition:transform .2s}
.scenario:hover .more::after{transform:translateX(4px)}

/* ========== Tool cards (small) ========== */
.tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:1024px){.tools-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.tools-grid{grid-template-columns:1fr}}
.tool{
  display:flex;gap:16px;padding:24px;
  background:#FFF;border:1px solid var(--border);
  border-radius:var(--radius-md);
  transition:all .25s;cursor:pointer;
  box-shadow:var(--shadow-sm);
}
.tool:hover{border-color:var(--primary);transform:translateX(4px);box-shadow:var(--shadow-md)}
.tool-icon{
  width:44px;height:44px;border-radius:10px;flex-shrink:0;
  background:var(--bg-1);border:1px solid var(--border);
  display:grid;place-items:center;font-size:22px;
  transition:all .25s;
}
.tool:hover .tool-icon{background:var(--grad-primary);border-color:transparent;transform:scale(1.05)}
.tool-info h4{font-size:15px;font-weight:700;margin-bottom:4px;color:var(--text-0)}
.tool-info p{font-size:13px;color:var(--text-2);line-height:1.5}

/* ========== Tool cards (large) ========== */
.tool-card{
  position:relative;padding:32px 28px;
  background:#FFF;border:1px solid var(--border);
  border-radius:20px;overflow:hidden;cursor:pointer;
  transition:all .35s cubic-bezier(.4,0,.2,1);
  box-shadow:var(--shadow-sm);
}
.tool-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad-primary);opacity:0;transition:opacity .35s;z-index:0;
}
.tool-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--primary-light)}
.tool-card:hover::before{opacity:1}
.tool-card>*{position:relative;z-index:1}

/* ========== Tags / Badges ========== */
.tag{padding:3px 10px;border-radius:6px;font-size:11px;background:var(--bg-1);border:1px solid var(--border);color:var(--text-2);font-weight:500}
.tag-hot{background:#FEE2E2;color:#DC2626;border-color:#FECACA}
.tag-new{background:var(--primary-light);color:var(--primary);border-color:#BFDBFE}
.tag-free{background:#D1FAE5;color:#059669;border-color:#A7F3D0}
.tag-exclusive{background:var(--accent-light);color:var(--accent);border-color:#DDD6FE}
.badge-new{
  display:inline-block;padding:1px 6px;border-radius:4px;
  background:var(--accent-light);color:var(--accent);
  font-size:10px;font-weight:700;margin-left:6px;
}

/* ========== Tabs ========== */
.tabs{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-bottom:40px}
.tab{
  padding:10px 20px;border-radius:var(--radius-pill);font-size:14px;font-weight:500;
  background:#FFF;border:1px solid var(--border);
  color:var(--text-2);transition:all .2s;cursor:pointer;
}
.tab.active,.tab:hover{background:var(--grad-primary);color:#FFF;border-color:transparent;font-weight:600}

/* ========== Data strip (gradient banner) ========== */
.data-strip{
  display:grid;grid-template-columns:repeat(8,1fr);gap:12px;
  padding:32px;border-radius:var(--radius-lg);
  background:var(--grad-primary);color:#FFF;
  box-shadow:var(--shadow-lg);
}
@media(max-width:1024px){.data-strip{grid-template-columns:repeat(4,1fr)}}
@media(max-width:600px){.data-strip{grid-template-columns:repeat(2,1fr)}}
.data-item{text-align:center;padding:16px 8px;border-radius:var(--radius-md);background:rgba(255,255,255,0.1);transition:all .2s}
.data-item:hover{background:rgba(255,255,255,0.2);transform:translateY(-2px)}
.data-item .n{font-family:var(--font-mono);font-size:22px;font-weight:800;color:#FFF;display:block;letter-spacing:-0.5px}
.data-item .l{font-size:12px;color:rgba(255,255,255,0.85);margin-top:4px}

/* ========== CTA Banner ========== */
.cta{
  margin:80px 0;padding:80px 40px;border-radius:var(--radius-xl);
  background:var(--grad-primary);
  text-align:center;position:relative;overflow:hidden;
  color:#FFF;box-shadow:0 24px 60px rgba(30,64,175,0.25);
}
.cta::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(circle at 20% 50%,rgba(255,255,255,0.2),transparent 50%),
    radial-gradient(circle at 80% 50%,rgba(255,255,255,0.15),transparent 50%);
}
.cta>*{position:relative;z-index:1}
.cta h2{font-size:clamp(36px,5vw,48px);font-weight:900;margin-bottom:16px;letter-spacing:-1.5px;color:#FFF}
.cta p{font-size:18px;color:rgba(255,255,255,0.9);margin-bottom:32px;max-width:600px;margin-left:auto;margin-right:auto}
.cta-btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.cta .btn-primary{background:#FFF;color:var(--primary);box-shadow:0 8px 24px rgba(0,0,0,0.15)}
.cta .btn-primary:hover{transform:translateY(-2px);background:#F8FAFC}
.cta .btn-ghost{background:transparent;color:#FFF;border:1px solid rgba(255,255,255,0.5)}
.cta .btn-ghost:hover{background:rgba(255,255,255,0.1);border-color:#FFF;color:#FFF}

/* ========== Search box ========== */
.search-box{
  max-width:720px;margin:0 auto 36px;
  background:#FFF;border:1px solid var(--border-strong);
  border-radius:var(--radius-pill);padding:8px 8px 8px 24px;
  display:flex;align-items:center;gap:12px;
  box-shadow:var(--shadow-lg);transition:all .2s;
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(30,64,175,0.1),var(--shadow-lg)}
.search-box input{flex:1;background:none;border:none;outline:none;color:var(--text-0);font-size:16px}
.search-box input::placeholder{color:var(--text-3)}

/* ========== Hero common ========== */
.hero{position:relative;padding:120px 0 80px;text-align:center;overflow:hidden}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--radius-pill);
  background:#FFF;border:1px solid var(--border-strong);
  font-size:13px;color:var(--text-2);margin-bottom:32px;
  box-shadow:var(--shadow-sm);
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 0 4px rgba(5,150,105,0.15);animation:pulse 2s infinite}
.hero-badge strong{color:var(--text-0);font-weight:700}
@keyframes pulse{50%{box-shadow:0 0 0 8px rgba(5,150,105,0.05)}}
.hero h1{
  font-size:clamp(48px,7vw,84px);font-weight:900;line-height:1.05;letter-spacing:-3px;
  margin-bottom:24px;color:var(--text-0);
}
.hero h1 .gradient{
  background:var(--grad-primary);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.hero-sub{
  font-size:clamp(16px,2vw,19px);color:var(--text-2);
  max-width:680px;margin:0 auto 48px;line-height:1.7;
}

/* ========== Reveal animations ========== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* ========== Footer ========== */
footer{padding:80px 0 32px;border-top:1px solid var(--border);background:var(--bg-1)}
.foot-grid{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:48px;margin-bottom:48px}
@media(max-width:768px){.foot-grid{grid-template-columns:1fr 1fr}}
.foot-brand p{font-size:14px;color:var(--text-2);margin-top:16px;line-height:1.7;max-width:280px}
.foot-col h5{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text-0)}
.foot-col ul{list-style:none}
.foot-col li{margin-bottom:8px}
.foot-col a{font-size:13px;color:var(--text-2);transition:color .2s}
.foot-col a:hover{color:var(--primary)}
.foot-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;
  padding-top:32px;border-top:1px solid var(--border);
  font-size:12px;color:var(--text-3);
}

/* ============================================================
   Dark Mode · [data-theme="dark"]
   自动覆盖所有 CSS 变量 + 硬编码颜色补丁
   ============================================================ */
[data-theme="dark"]{
  --bg-0:#0F172A;
  --bg-1:#1E293B;
  --bg-2:#334155;
  --bg-3:#475569;

  --primary:#60A5FA;
  --primary-dim:#3B82F6;
  --primary-light:rgba(96,165,250,0.15);
  --accent:#A78BFA;
  --accent-light:rgba(167,139,250,0.15);
  --accent-2:#F472B6;
  --success:#34D399;
  --warning:#FBBF24;
  --danger:#F87171;

  --text-0:#F8FAFC;
  --text-1:#E2E8F0;
  --text-2:#94A3B8;
  --text-3:#64748B;

  --border:rgba(255,255,255,0.1);
  --border-strong:rgba(255,255,255,0.18);
  --glass:rgba(30,41,59,0.7);
  --glass-strong:rgba(30,41,59,0.9);

  --shadow-sm:0 1px 2px rgba(0,0,0,0.3),0 1px 3px rgba(0,0,0,0.2);
  --shadow-md:0 4px 16px rgba(0,0,0,0.3),0 2px 4px rgba(0,0,0,0.2);
  --shadow-lg:0 16px 40px rgba(0,0,0,0.4),0 4px 12px rgba(0,0,0,0.2);
  --shadow-glow:0 8px 30px rgba(96,165,250,0.25);
  --shadow-primary:0 4px 14px rgba(96,165,250,0.3);
  --shadow-primary-lg:0 8px 24px rgba(96,165,250,0.45);

  --grad-primary:linear-gradient(135deg,#60A5FA 0%,#A78BFA 100%);
  --grad-accent:linear-gradient(135deg,#A78BFA 0%,#F472B6 100%);
  --grad-warm:linear-gradient(135deg,#60A5FA 0%,#3B82F6 100%);
  --grad-bg:linear-gradient(180deg,#0F172A 0%,#1E293B 60%);

  color-scheme:dark;
}

/* Dark mode patches for hardcoded colors */
[data-theme="dark"] body{background:var(--bg-0);color:var(--text-1)}
[data-theme="dark"] .nav{background:rgba(15,23,42,0.8)}
[data-theme="dark"] .brand{color:var(--text-0)}
[data-theme="dark"] .nav-menu a:hover{background:var(--bg-2)}
[data-theme="dark"] .btn-ghost{background:var(--bg-1);color:var(--text-1)}
[data-theme="dark"] .btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
[data-theme="dark"] .stat-card,
[data-theme="dark"] .scenario,
[data-theme="dark"] .tool,
[data-theme="dark"] .tool-card,
[data-theme="dark"] .quote,
[data-theme="dark"] .filter-bar,
[data-theme="dark"] .search-box,
[data-theme="dark"] .countdown-row{
  background:var(--bg-1);
  border-color:var(--border);
}
[data-theme="dark"] .tool-icon,
[data-theme="dark"] .tool-icon-lg{
  background:var(--bg-2);
  border-color:var(--border);
}
[data-theme="dark"] .scenario h3,
[data-theme="dark"] .tool-info h4,
[data-theme="dark"] .tool-card .tool-info h3,
[data-theme="dark"] .stat-num,
[data-theme="dark"] .quote-name,
[data-theme="dark"] .foot-col h5{color:var(--text-0)}
[data-theme="dark"] .tab{background:var(--bg-1);color:var(--text-2)}
[data-theme="dark"] .tab.active,
[data-theme="dark"] .tab:hover{background:var(--grad-primary);color:#0F172A}
[data-theme="dark"] .prov{background:var(--bg-1);color:var(--text-2)}
[data-theme="dark"] .prov.active{background:var(--grad-primary);color:#0F172A}
[data-theme="dark"] .hero-badge{background:var(--bg-1);color:var(--text-2)}
[data-theme="dark"] .hero-badge strong{color:var(--text-0)}
[data-theme="dark"] .hero h1{color:var(--text-0)}
[data-theme="dark"] .countdown-icon{background:var(--primary-light)}
[data-theme="dark"] .countdown-time .num{color:var(--primary)}
[data-theme="dark"] .data-item{background:rgba(255,255,255,0.08)}
[data-theme="dark"] .data-item:hover{background:rgba(255,255,255,0.15)}
[data-theme="dark"] footer{background:var(--bg-0);border-top-color:var(--border)}
[data-theme="dark"] .section-alt{background:var(--bg-1)}
[data-theme="dark"] .tag{background:var(--bg-2);color:var(--text-2);border-color:var(--border)}
[data-theme="dark"] .filter-search{background:var(--bg-2);border-color:var(--border)}
[data-theme="dark"] .filter-search input{color:var(--text-0)}

/* Theme toggle button */
.theme-toggle{
  width:36px;height:36px;border-radius:50%;
  background:var(--bg-1);border:1px solid var(--border);
  display:grid;place-items:center;font-size:16px;color:var(--text-1);
  transition:all .25s;cursor:pointer;
}
.theme-toggle:hover{border-color:var(--primary);color:var(--primary);transform:rotate(15deg)}
[data-theme="dark"] .theme-toggle{background:var(--bg-2)}

/* Smooth transition when switching themes */
body,.nav,.stat-card,.scenario,.tool,.tool-card,.quote,.filter-bar,.search-box,
.tab,.prov,.hero-badge,.countdown-row,.tool-icon,.tool-icon-lg,.countdown-icon,
footer,.section-alt,.filter-search,.theme-toggle{
  transition:background-color .3s ease,color .3s ease,border-color .3s ease;
}