@import url("https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600&family=Syne:wght@500;600;700&display=swap");

:root {
  --bg: #0a0a0b;
  --bg-elevated: #121214;
  --bg-subtle: #1a1a1e;
  --fg: #f0efec;
  --fg-muted: #9a9aa3;
  --fg-subtle: #6e6e76;
  --border: color-mix(in oklab, var(--fg) 12%, transparent);
  --border-strong: color-mix(in oklab, var(--fg) 22%, transparent);
  --accent: #d2d6dc;
  --accent-fg: #0a0a0b;
  --success: #7d9b8a;
  --danger: #c45c4a;
  --warn: #c4a574;
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --font-display: "Syne", sans-serif;
  --font-body: "Outfit", system-ui, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  --text-2xl: clamp(2rem, 1.3rem + 2.2vw, 3.25rem);
  --text-3xl: clamp(2.4rem, 1.4rem + 3.4vw, 4.4rem);
  --leading-tight: 1.1;
  --leading-snug: 1.25;
  --leading-normal: 1.5;
  --tracking-display: -0.03em;
  --motion-quick: 150ms;
  --motion-fast: 250ms;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow: 0 24px 60px color-mix(in oklab, #000 45%, transparent);
  --sidebar: 240px;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { background: var(--bg); color: var(--fg); }
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  background: var(--bg);
  color: var(--fg);
  min-height: 100dvh;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, [role="button"] { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .5; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; letter-spacing: var(--tracking-display); line-height: var(--leading-tight); margin: 0; }
p { margin: 0; }
code, .mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

.skip { position: absolute; left: -999px; }
.app-bg {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(900px 480px at 8% -10%, color-mix(in oklab, var(--fg) 6%, transparent), transparent 60%),
    radial-gradient(700px 400px at 100% 0%, color-mix(in oklab, var(--fg) 4%, transparent), transparent 55%);
}

.top {
  position: relative; z-index: 5;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 28px;
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 600; letter-spacing: .12em; font-size: 13px; }
.brand svg { width: 28px; height: 28px; }
.nav-links { display: flex; gap: 8px; align-items: center; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent; color: var(--fg);
  font-family: var(--font-body); font-weight: 500; font-size: 14px;
  transition: transform var(--motion-quick) var(--ease-out), background var(--motion-fast) var(--ease-out), border-color var(--motion-fast) var(--ease-out);
}
.btn:hover { background: var(--bg-subtle); }
.btn:active { transform: scale(0.98); }
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.btn-primary:hover { filter: brightness(1.06); background: var(--accent); }
.btn-ghost { border-color: transparent; }
.btn-danger { color: var(--danger); border-color: color-mix(in oklab, var(--danger) 40%, transparent); }
.btn-block { width: 100%; }
.btn-sm { min-height: 36px; padding: 0 12px; font-size: 13px; }

.wrap { position: relative; z-index: 1; width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.hero { padding: 72px 0 48px; display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.kicker { color: var(--fg-muted); font-size: 12px; letter-spacing: .18em; text-transform: uppercase; font-weight: 500; margin-bottom: 16px; }
.hero h1 { font-size: var(--text-3xl); max-width: 14ch; }
.lede { margin-top: 18px; color: var(--fg-muted); font-size: 1.05rem; max-width: 38ch; }
.hero-actions { display: flex; gap: 10px; margin-top: 28px; flex-wrap: wrap; }

.panel {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 20px;
  box-shadow: var(--shadow);
}
.panel-inner { background: var(--bg-subtle); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 16px; }
.muted { color: var(--fg-muted); }
.subtle { color: var(--fg-subtle); }
.stat-num { font-family: var(--font-display); font-size: 28px; font-variant-numeric: tabular-nums; letter-spacing: -0.03em; }
.row { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.hair { height: 1px; background: var(--border); border: 0; margin: 14px 0; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding: 12px 0 64px; }
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 22px;
}
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--fg-muted); font-size: 14px; }
.icon-chip {
  width: 36px; height: 36px; border-radius: var(--radius-sm);
  display: grid; place-items: center; margin-bottom: 16px;
  background: var(--bg-subtle); color: var(--accent);
}
.icon-chip svg { width: 18px; height: 18px; }

.section { padding: 8px 0 72px; }
.section h2 { font-size: var(--text-xl); margin-bottom: 10px; }
.code {
  background: #0e0e10;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  overflow: auto;
  font-size: 12.5px;
  line-height: 1.6;
  color: #d5d7db;
}
.foot { border-top: 1px solid var(--border); padding: 28px; color: var(--fg-subtle); font-size: 13px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

.auth-shell { min-height: 100dvh; display: grid; place-items: center; padding: 32px 16px; position: relative; z-index: 1; }
.auth-card { width: min(420px, 100%); background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-xl); padding: 28px; }
.auth-card h1 { font-size: 28px; margin: 12px 0 6px; }
.demo-box { margin-top: 18px; padding: 12px; border-radius: var(--radius-md); background: var(--bg-subtle); border: 1px solid var(--border); font-size: 13px; color: var(--fg-muted); }
.demo-box strong { color: var(--fg); font-weight: 500; }

label { display: block; font-size: 13px; color: var(--fg-muted); margin: 14px 0 6px; font-weight: 500; }
input, select, textarea {
  width: 100%; min-height: 44px; padding: 10px 12px;
  border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--bg); color: var(--fg);
  font-family: inherit; font-size: 15px;
}
textarea { min-height: 96px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid color-mix(in oklab, var(--accent) 50%, transparent); outline-offset: 1px; }
.help { font-size: 12px; color: var(--fg-subtle); margin-top: 6px; }

.flash { border-radius: var(--radius-md); padding: 10px 12px; margin-bottom: 14px; font-size: 14px; border: 1px solid var(--border); }
.flash.ok { border-color: color-mix(in oklab, var(--success) 45%, transparent); color: var(--success); }
.flash.err { border-color: color-mix(in oklab, var(--danger) 45%, transparent); color: var(--danger); }

.app-shell { display: grid; grid-template-columns: var(--sidebar) 1fr; min-height: 100dvh; position: relative; z-index: 1; }
.sidebar {
  border-right: 1px solid var(--border);
  padding: 20px 14px;
  display: flex; flex-direction: column; gap: 6px;
  background: color-mix(in oklab, var(--bg) 88%, #000);
}
.side-link {
  display: flex; align-items: center; gap: 10px;
  min-height: 40px; padding: 0 12px;
  border-radius: var(--radius-sm); color: var(--fg-muted); font-size: 14px; font-weight: 500;
}
.side-link svg { width: 18px; height: 18px; flex: none; }
.side-link.active, .side-link:hover { background: var(--bg-subtle); color: var(--fg); }
.side-spacer { flex: 1; }
.main { padding: 28px 32px 96px; }
.page-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.page-head h1 { font-size: 28px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 22px; }
.stat { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 16px 18px; }
.stat span { display: block; color: var(--fg-muted); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 8px; }
.stat b { font-family: var(--font-display); font-size: 22px; font-weight: 600; font-variant-numeric: tabular-nums; }

.table-wrap { overflow: auto; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--bg-elevated); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--fg-subtle); font-weight: 500; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }
tr:last-child td { border-bottom: 0; }
.badge { display: inline-flex; align-items: center; min-height: 22px; padding: 0 8px; border-radius: 999px; font-size: 12px; border: 1px solid var(--border); color: var(--fg-muted); }
.badge.ok { color: var(--success); border-color: color-mix(in oklab, var(--success) 40%, transparent); }
.badge.warn { color: var(--warn); border-color: color-mix(in oklab, var(--warn) 40%, transparent); }
.badge.err { color: var(--danger); border-color: color-mix(in oklab, var(--danger) 40%, transparent); }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.span-2 { grid-column: span 2; }
.qr-box { display: grid; place-items: center; background: #fff; border-radius: var(--radius-md); padding: 12px; width: 220px; height: 220px; }
.qr-box img { width: 196px; height: 196px; }
.pix-code { word-break: break-all; font-size: 12px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px; }
.split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; align-items: start; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.empty { padding: 36px 16px; text-align: center; color: var(--fg-muted); }

.mobile-bar { display: none; }
.top-mobile { display: none; }
.notice { font-size: 13px; color: var(--fg-muted); border: 1px dashed var(--border); border-radius: var(--radius-md); padding: 10px 12px; margin-bottom: 16px; }

@media (max-width: 900px) {
  .hero, .split, .grid-3, .stats, .form-grid { grid-template-columns: 1fr; }
  .span-2 { grid-column: auto; }
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .top-mobile { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; border-bottom: 1px solid var(--border); }
  .main { padding: 18px 16px 108px; }
  .mobile-bar {
    display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 20;
    background: color-mix(in oklab, var(--bg) 92%, #000);
    border-top: 1px solid var(--border);
    padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
    justify-content: space-around;
  }
  .mobile-bar a { display: flex; flex-direction: column; align-items: center; gap: 4px; font-size: 11px; color: var(--fg-muted); min-width: 56px; min-height: 44px; justify-content: center; }
  .mobile-bar a.active { color: var(--fg); }
  .mobile-bar svg { width: 18px; height: 18px; }
  .wrap { width: min(1120px, calc(100% - 28px)); }
  .hero { padding: 40px 0 28px; }
  .top { padding: 14px 16px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}