/* ============================================================
   Magic Coloring — main.css
   Tokens, base layout, nav, forms, buttons, cards, toast, modal
   ============================================================ */

:root {
  --bg: #0b0f1e;
  --bg-soft: #101631;
  --card: #151c36;
  --card-soft: #1a2244;
  --border: rgba(255, 255, 255, 0.09);
  --text: #eef1fb;
  --muted: #9aa3c4;
  --brand1: #8b5cf6;
  --brand2: #ec4899;
  --brand3: #f59e0b;
  --success: #34d399;
  --danger: #f87171;
  --warn: #fbbf24;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --gradient: linear-gradient(90deg, var(--brand1), var(--brand2) 55%, var(--brand3));
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Sarabun', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(139, 92, 246, 0.14), transparent 60%),
    radial-gradient(900px 420px at 10% 110%, rgba(236, 72, 153, 0.10), transparent 60%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
}

a { color: inherit; }

.container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; }

main.container { flex: 1; width: 100%; }

/* ---------- nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(11, 15, 30, 0.82);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.logo .logo-mark { font-size: 1.5rem; }

.logo .logo-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Single row always: compact buttons, no wrapping — when the row is too
   wide (narrow viewport, admin links) it scrolls horizontally instead of
   dropping to a second line. */
.nav-buttons {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: nowrap;
  max-width: 100%;
  overflow-x: auto;
  padding: 2px;
  scrollbar-width: none;
}
.nav-buttons::-webkit-scrollbar { display: none; }

.nav-buttons .btn {
  padding: 6px 14px;
  font-size: 0.85rem;
  white-space: nowrap;
  flex: 0 0 auto;
}

.nav-buttons .btn.active { border-color: var(--brand1); color: #fff; }

.credits-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(139, 92, 246, 0.16);
  border: 1px solid rgba(139, 92, 246, 0.4);
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  font-family: inherit;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 6px 18px rgba(139, 92, 246, 0.35);
}
.btn-primary:hover { box-shadow: 0 8px 24px rgba(236, 72, 153, 0.4); }

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover { background: rgba(255, 255, 255, 0.1); }

.btn-danger {
  background: rgba(248, 113, 113, 0.12);
  color: var(--danger);
  border-color: rgba(248, 113, 113, 0.35);
}
.btn-danger:hover { background: rgba(248, 113, 113, 0.2); }

.btn-success {
  background: rgba(52, 211, 153, 0.14);
  color: var(--success);
  border-color: rgba(52, 211, 153, 0.4);
}

.btn-ghost { background: transparent; color: var(--muted); }
.btn-ghost:hover { color: var(--text); }

.btn-sm { padding: 6px 14px; font-size: 0.85rem; }
.btn-lg { padding: 14px 32px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ---------- forms ---------- */

.input-group { margin-bottom: 18px; }

.input-group label {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 500;
}

.input-group .hint { margin-top: 5px; font-size: 0.8rem; color: var(--muted); }

input[type='text'],
input[type='email'],
input[type='url'],
input[type='password'],
input[type='number'],
input[type='datetime-local'],
select,
textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.28);
  color: var(--text);
  font-size: 0.98rem;
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--brand1);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.22);
}

textarea { resize: vertical; min-height: 90px; }

select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 18px) 55%, calc(100% - 12px) 55%; background-size: 6px 6px; background-repeat: no-repeat; padding-right: 36px; }

select option { background: var(--card); color: var(--text); }

input::placeholder, textarea::placeholder { color: #6b7396; }

/* ---------- cards ---------- */

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.card + .card { margin-top: 18px; }

.card-title { font-size: 1.15rem; font-weight: 700; margin-bottom: 14px; }

/* ---------- page header ---------- */

.page-header { padding: 34px 0 10px; }

.page-header h1 { font-size: 1.9rem; margin-bottom: 6px; }

.page-header .subtitle { color: var(--muted); }

/* ---------- alerts ---------- */

.alert {
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 0.93rem;
  border: 1px solid transparent;
}

.alert-error { background: rgba(248, 113, 113, 0.1); border-color: rgba(248, 113, 113, 0.35); color: #fecaca; }
.alert-success { background: rgba(52, 211, 153, 0.1); border-color: rgba(52, 211, 153, 0.35); color: #a7f3d0; }
.alert-info { background: rgba(139, 92, 246, 0.1); border-color: rgba(139, 92, 246, 0.35); color: #ddd6fe; }
.alert-warn { background: rgba(251, 191, 36, 0.1); border-color: rgba(251, 191, 36, 0.35); color: #fde68a; }

.hidden { display: none !important; }

/* ---------- toast ---------- */

#toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--card-soft);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 0.92rem;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 100;
  max-width: 90vw;
  text-align: center;
}

#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

#toast.toast-success { border-color: rgba(52, 211, 153, 0.5); }
#toast.toast-error { border-color: rgba(248, 113, 113, 0.5); }

/* ---------- spinner ---------- */

.spinner {
  display: inline-block;
  width: 22px;
  height: 22px;
  border: 3px solid rgba(255, 255, 255, 0.15);
  border-top-color: var(--brand1);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-lg { width: 44px; height: 44px; border-width: 5px; }

@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- skeleton ---------- */

.skeleton {
  background: linear-gradient(90deg, var(--card) 25%, var(--card-soft) 50%, var(--card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer { to { background-position: -200% 0; } }

/* ---------- footer ---------- */

footer.footer {
  border-top: 1px solid var(--border);
  margin-top: 60px;
  padding: 26px 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.footer-inner { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.footer-inner a { color: var(--text); text-decoration: none; }
.footer-inner a:hover { text-decoration: underline; }

/* ---------- responsive ---------- */

@media (max-width: 720px) {
  .nav-inner { flex-direction: column; align-items: stretch; }
  /* nav-buttons stays one scrollable row (left-aligned — centering would
     clip the scrolled-off start of the row) */
  .page-header h1 { font-size: 1.5rem; }
}