/* Expressbuild — full static theme (light default + dark toggle) */
:root{
  --bg:#ffffff; --bg-soft:#f7f8fb; --fg:#0b1020; --fg-muted:#5b6478;
  --card:#ffffff; --card-2:#fafbff; --border:#e6e8ef; --input:#eef0f6;
  --primary:#5b54ff; --primary-2:#7c5cff; --primary-glow:#22d3ee;
  --accent:#f5f3ff; --success:#10b981; --danger:#ef4444; --warn:#f59e0b;
  --shadow-sm:0 1px 2px rgba(15,18,40,.06);
  --shadow:0 10px 30px -12px rgba(91,84,255,.25), 0 4px 10px rgba(15,18,40,.06);
  --shadow-lg:0 30px 60px -20px rgba(91,84,255,.35);
  --grad-hero:radial-gradient(1200px 600px at 80% -10%, rgba(124,92,255,.25), transparent 60%),
              radial-gradient(900px 500px at -10% 20%, rgba(34,211,238,.18), transparent 60%);
  --grad-text:linear-gradient(135deg,#5b54ff 0%,#22d3ee 100%);
  --grad-btn:linear-gradient(135deg,#5b54ff 0%,#7c5cff 60%, #22d3ee 120%);
  --grid:radial-gradient(rgba(15,18,40,.06) 1px, transparent 1px);
}
html.dark{
  --bg:#0a0c14; --bg-soft:#0e111b; --fg:#eef1f7; --fg-muted:#a0a8bd;
  --card:#11131e; --card-2:#161927; --border:#222639; --input:#1a1d2c;
  --primary:#8b85ff; --primary-2:#9b7cff; --primary-glow:#67e8f9;
  --accent:#1a1530; --shadow-sm:0 1px 2px rgba(0,0,0,.4);
  --shadow:0 10px 30px -10px rgba(0,0,0,.6), 0 4px 12px rgba(0,0,0,.35);
  --shadow-lg:0 40px 80px -20px rgba(91,84,255,.5);
  --grad-hero:radial-gradient(1200px 600px at 80% -10%, rgba(124,92,255,.35), transparent 60%),
              radial-gradient(900px 500px at -10% 20%, rgba(34,211,238,.2), transparent 60%);
  --grid:radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  background:var(--bg); color:var(--fg); line-height:1.55;
  -webkit-font-smoothing:antialiased; min-height:100vh;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.muted{color:var(--fg-muted)}
.gradient-text{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;border-radius:12px;font-weight:600;font-size:14px;
  border:1px solid transparent;cursor:pointer;transition:all .2s ease;
  background:var(--card);color:var(--fg);border-color:var(--border)}
.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.btn-primary{background:var(--grad-btn);color:#fff;border:none;box-shadow:var(--shadow)}
.btn-primary:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:transparent}
.btn-ghost:hover{background:var(--accent)}
.btn-lg{padding:14px 24px;font-size:15px;border-radius:14px}
.btn-block{width:100%}

/* Header */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
  background:color-mix(in oklab,var(--bg) 78%,transparent);
  border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.02em}
.logo-mark{width:32px;height:32px;border-radius:9px;background:var(--grad-btn);
  display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:var(--shadow)}
.nav-links{display:flex;gap:6px;align-items:center}
.nav-links a{padding:8px 14px;border-radius:10px;font-size:14px;color:var(--fg-muted);font-weight:500}
.nav-links a:hover{background:var(--accent);color:var(--fg)}
.theme-btn{width:38px;height:38px;border-radius:10px;border:1px solid var(--border);
  background:var(--card);cursor:pointer;display:grid;place-items:center;color:var(--fg)}
.theme-btn:hover{background:var(--accent)}

/* Hero */
.hero{position:relative;padding:96px 0 80px;overflow:hidden;background:var(--grad-hero)}
.hero::before{content:"";position:absolute;inset:0;background-image:var(--grid);
  background-size:28px 28px;mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
  pointer-events:none}
.hero-inner{position:relative;text-align:center;max-width:880px;margin:0 auto}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--card);border:1px solid var(--border);font-size:13px;font-weight:500;
  color:var(--fg-muted);margin-bottom:24px;box-shadow:var(--shadow-sm)}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--success)}
h1.hero-title{font-size:clamp(40px,6vw,72px);line-height:1.05;letter-spacing:-.03em;
  font-weight:800;margin:0 0 20px}
.hero-sub{font-size:clamp(17px,1.8vw,20px);color:var(--fg-muted);margin:0 auto 36px;max-width:640px}
.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* Prompt card */
.prompt-card{margin:64px auto 0;max-width:760px;background:var(--card);border:1px solid var(--border);
  border-radius:20px;padding:20px;box-shadow:var(--shadow-lg);position:relative}
.prompt-card textarea{width:100%;min-height:96px;background:transparent;border:none;outline:none;
  resize:none;font:inherit;color:var(--fg);font-size:16px;padding:8px}
.prompt-foot{display:flex;justify-content:space-between;align-items:center;margin-top:8px;gap:12px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;
  background:var(--bg-soft);border:1px solid var(--border);font-size:12px;color:var(--fg-muted);cursor:pointer}
.chip:hover{background:var(--accent);color:var(--fg)}

/* Sections */
section{padding:80px 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 56px}
.section-head h2{font-size:clamp(30px,4vw,44px);font-weight:800;letter-spacing:-.025em;margin:0 0 14px}
.section-head p{color:var(--fg-muted);font-size:17px;margin:0}

/* Feature grid */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid-4{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.feature{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:28px;
  transition:all .3s;position:relative;overflow:hidden}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--primary)}
.feature-icon{width:48px;height:48px;border-radius:12px;background:var(--accent);
  display:grid;place-items:center;color:var(--primary);margin-bottom:18px;font-size:22px}
.feature h3{margin:0 0 8px;font-size:18px;font-weight:700}
.feature p{margin:0;color:var(--fg-muted);font-size:14.5px}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:32px;
  padding:48px;background:var(--card);border:1px solid var(--border);border-radius:24px;
  text-align:center;box-shadow:var(--shadow)}
.stat-num{font-size:44px;font-weight:800;background:var(--grad-text);
  -webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-.03em}
.stat-lbl{color:var(--fg-muted);font-size:14px;margin-top:4px}

/* Footer */
footer{border-top:1px solid var(--border);padding:48px 0 32px;margin-top:40px;background:var(--bg-soft)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-grid h4{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--fg-muted);margin:0 0 14px}
.foot-grid a{display:block;padding:4px 0;color:var(--fg-muted);font-size:14px}
.foot-grid a:hover{color:var(--fg)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;
  border-top:1px solid var(--border);color:var(--fg-muted);font-size:13px;flex-wrap:wrap;gap:12px}
.foot-bottom .heart{color:#ef4444}
.foot-bottom a{color:var(--primary);font-weight:600}

/* Auth */
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:40px 20px;background:var(--grad-hero)}
.auth-card{width:100%;max-width:440px;background:var(--card);border:1px solid var(--border);
  border-radius:24px;padding:40px;box-shadow:var(--shadow-lg)}
.auth-card h1{margin:0 0 8px;font-size:28px;font-weight:800;letter-spacing:-.02em;text-align:center}
.auth-card .sub{color:var(--fg-muted);text-align:center;margin:0 0 28px;font-size:14.5px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.field input{width:100%;padding:12px 14px;border-radius:11px;border:1px solid var(--border);
  background:var(--input);color:var(--fg);font:inherit;font-size:14.5px;outline:none;transition:.15s}
.field input:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in oklab,var(--primary) 20%,transparent)}
.divider{display:flex;align-items:center;gap:12px;margin:22px 0;color:var(--fg-muted);font-size:12px}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--border)}
.gbtn{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;padding:12px;
  border-radius:11px;border:1px solid var(--border);background:var(--card);color:var(--fg);font-weight:600;
  cursor:pointer;font-size:14.5px;transition:.15s}
.gbtn:hover{background:var(--accent)}
.auth-foot{text-align:center;margin-top:20px;color:var(--fg-muted);font-size:14px}
.auth-foot a{color:var(--primary);font-weight:600}

/* App shell */
.app{display:grid;grid-template-columns:260px 1fr;min-height:100vh}
.sidebar{background:var(--bg-soft);border-right:1px solid var(--border);padding:20px 14px;
  display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh;overflow-y:auto}
.sidebar .logo{margin:6px 8px 18px}
.side-link{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;
  font-size:14px;color:var(--fg-muted);font-weight:500}
.side-link:hover{background:var(--accent);color:var(--fg)}
.side-link.active{background:var(--accent);color:var(--primary);font-weight:600}
.side-section{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--fg-muted);
  padding:14px 12px 6px;font-weight:700}
.main{display:flex;flex-direction:column;min-width:0}
.topbar{height:64px;border-bottom:1px solid var(--border);padding:0 28px;
  display:flex;align-items:center;justify-content:space-between;background:var(--bg);
  position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.topbar h2{margin:0;font-size:18px;font-weight:700}
.topbar-right{display:flex;gap:10px;align-items:center}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--grad-btn);
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:13px}
.content{padding:28px;flex:1}
.page-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px;gap:16px;flex-wrap:wrap}
.page-head h1{margin:0 0 4px;font-size:26px;font-weight:800;letter-spacing:-.02em}
.page-head p{margin:0;color:var(--fg-muted);font-size:14.5px}

/* Cards/Tables */
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:24px}
.kpi{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.kpi .card{padding:20px}
.kpi-lbl{color:var(--fg-muted);font-size:12.5px;text-transform:uppercase;letter-spacing:.05em;font-weight:600}
.kpi-val{font-size:30px;font-weight:800;margin-top:6px;letter-spacing:-.02em}
.kpi-delta{font-size:12px;color:var(--success);font-weight:600;margin-top:4px}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--border);font-size:14px}
th{color:var(--fg-muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.05em}
tr:last-child td{border:none}
.badge{display:inline-flex;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;
  background:var(--accent);color:var(--primary)}
.badge.success{background:color-mix(in oklab,var(--success) 18%,transparent);color:var(--success)}
.badge.warn{background:color-mix(in oklab,var(--warn) 22%,transparent);color:var(--warn)}
.badge.danger{background:color-mix(in oklab,var(--danger) 22%,transparent);color:var(--danger)}

/* Project cards */
.proj-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.proj{background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden;
  transition:.25s;cursor:pointer}
.proj:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--primary)}
.proj-thumb{aspect-ratio:16/10;background:var(--grad-hero);background-color:var(--accent);
  display:grid;place-items:center;color:var(--primary);font-size:32px;font-weight:800}
.proj-body{padding:16px}
.proj-body h4{margin:0 0 4px;font-size:15px;font-weight:700}
.proj-body p{margin:0;color:var(--fg-muted);font-size:13px}

@media (max-width:900px){
  .app{grid-template-columns:1fr}
  .sidebar{display:none}
  .foot-grid{grid-template-columns:1fr 1fr;gap:24px}
}