/* BuyList minimal UI — inspired by provided index.html demo styling. */
/* Theme variables */
:root {
  --bg: #0b0f19;
  --panel: rgba(255,255,255,.06);
  --panel-2: rgba(255,255,255,.10);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.70);
  --border: rgba(255,255,255,.12);
  --shadow: 0 12px 30px rgba(0,0,0,.35);
  --accent: #7c5cff;
  --accent-2: #2de2e6;
  --danger: #ff4d6d;
  --ok: #31d0aa;
  --radius: 18px;
  --radius-sm: 12px;
  --max: 1100px;
  --ring: 0 0 0 4px rgba(124,92,255,.25);
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}
html[data-theme="light"] {
  --bg: #f7f8ff;
  --panel: rgba(0,0,0,.04);
  --panel-2: rgba(0,0,0,.06);
  --text: rgba(10,14,28,.92);
  --muted: rgba(10,14,28,.68);
  --border: rgba(10,14,28,.12);
  --shadow: 0 12px 30px rgba(0,0,0,.10);
  --ring: 0 0 0 4px rgba(124,92,255,.20);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  background:
    radial-gradient(900px 500px at 20% -10%, rgba(124,92,255,.35), transparent 55%),
    radial-gradient(900px 500px at 100% 10%, rgba(45,226,230,.25), transparent 55%),
    radial-gradient(1200px 700px at 50% 120%, rgba(124,92,255,.20), transparent 60%),
    var(--bg);
  color: var(--text);
  line-height: 1.45;
}
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 20px; }
.card {
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 85%, transparent);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  background: color-mix(in oklab, var(--bg) 70%, transparent);
}
.head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 20px;
  max-width: var(--max);
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 220px;
}
.logo {
  width: 38px; height: 38px; border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 14px 30px rgba(124,92,255,.25);
  position: relative;
  overflow: hidden;
}
.logo::after {
  content: "";
  position: absolute; inset: -40%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.55), transparent 55%);
  transform: rotate(15deg);
  opacity: .65;
}
.brand h1 { font-size: 14px; margin: 0; letter-spacing: .2px; }
.brand p { margin: 0; font-size: 12px; color: var(--muted); }

/* Nav */
.nav {
  border-top: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 75%, transparent);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}
.nav-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel);
  box-shadow: 0 10px 22px rgba(0,0,0,.10);
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
  cursor: pointer;
  user-select: none;
}
.pill:hover { transform: translateY(-1px); background: var(--panel-2); }
.pill:focus-visible { outline: none; box-shadow: var(--ring); }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 8px;
  font-size: 11px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--muted);
}

.btn {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  user-select: none;
}
.btn:hover { transform: translateY(-1px); background: var(--panel-2); }
.btn:focus-visible { outline: none; box-shadow: var(--ring); }
.btn.primary {
  border-color: color-mix(in oklab, var(--accent) 60%, var(--border));
  background: linear-gradient(135deg,
    color-mix(in oklab, var(--accent) 70%, transparent),
    color-mix(in oklab, var(--accent-2) 35%, transparent)
  );
}
.btn.danger { border-color: color-mix(in oklab, var(--danger) 60%, var(--border)); }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
@media (max-width: 980px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; }
  .brand { min-width: unset; }
}

.feature {
  padding: 14px 14px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 85%, transparent);
  box-shadow: 0 10px 24px rgba(0,0,0,.10);
}
.feature h2 { margin: 0 0 6px; font-size: 18px; letter-spacing: -0.01em; }
.feature p { margin: 0; color: var(--muted); font-size: 13px; }

/* Forms */
.form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 900px) {
  .form { grid-template-columns: 1fr; }
}
label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.field input, .field textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  outline: none;
  transition: box-shadow .12s ease, border-color .12s ease;
}
.field input:focus, .field textarea:focus {
  box-shadow: var(--ring);
  border-color: color-mix(in oklab, var(--accent) 45%, var(--border));
}
.help { color: var(--muted); font-size: 12px; }
.error { color: color-mix(in oklab, var(--danger) 80%, var(--text)); font-size: 12px; }
.good { color: color-mix(in oklab, var(--ok) 80%, var(--text)); font-size: 12px; }

/* Alerts */
.alerts { display: flex; flex-direction: column; gap: 10px; margin: 14px 0 0; }
.alert {
  padding: 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 80%, transparent);
}
.alert.info { border-color: color-mix(in oklab, var(--accent) 45%, var(--border)); }
.alert.ok { border-color: color-mix(in oklab, var(--ok) 55%, var(--border)); }
.alert.err { border-color: color-mix(in oklab, var(--danger) 55%, var(--border)); }
.alert p { margin: 0; color: var(--muted); font-size: 13px; }

/* Footer */
footer {
  color: var(--muted);
  border-top: 1px solid var(--border);
  padding: 20px 0 40px;
}
.small { font-size: 12px; color: var(--muted); }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}