/* Base styles and theme */
:root {
  --bg: #0f172a;          /* slate-900 */
  --surface: #111827;     /* gray-900 */
  --surface-2: #1f2937;   /* gray-800 */
  --text: #e5e7eb;        /* gray-200 */
  --muted: #9ca3af;       /* gray-400 */
  --primary: #6366f1;     /* indigo-500 */
  --primary-600: #5458ee;
  --secondary: #22d3ee;   /* cyan-400 */
  --accent: #10b981;      /* emerald-500 */
  --danger: #ef4444;      /* red-500 */
  --warning: #f59e0b;     /* amber-500 */
  --radius: 12px;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
  color: var(--text);
  background: radial-gradient(1000px 600px at 10% -10%, rgba(99,102,241,.25), transparent 60%),
              radial-gradient(1200px 800px at 90% 10%, rgba(34,211,238,.18), transparent 60%),
              linear-gradient(180deg, #0b1022, #0f172a);
}

img { max-width: 100%; display: block; }

.container {
  width: min(1100px, 92%);
  margin-inline: auto;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(17, 24, 39, .7);
  backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .9rem 0; }
.brand { color: white; font-weight: 700; letter-spacing: .2px; text-decoration: none; font-size: 1.05rem; }

.nav-links { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.nav-links a { color: var(--text); text-decoration: none; opacity: .9; }
.nav-links a:hover { color: white; opacity: 1; }
.badge { background: rgba(99,102,241,.15); color: #c7d2fe; padding: .25rem .5rem; border-radius: 999px; font-size: .85rem; }
.nav-toggle { display: none; background: transparent; border: 1px solid rgba(255,255,255,.2); color: #fff; padding: .35rem .55rem; border-radius: .5rem; cursor: pointer; }


.logout-form { display: inline; margin: 0; }

/* Buttons */
.btn { appearance: none; border: 0; cursor: pointer; color: white; background: var(--primary); padding: .55rem .9rem; border-radius: .7rem; font-weight: 600; box-shadow: 0 6px 18px rgba(99,102,241,.35); transition: transform .05s ease, background .2s ease; text-decoration: none; display: inline-flex; align-items: center; gap: .5rem; }
.btn:hover { background: var(--primary-600); }
.btn:active { transform: translateY(1px); }
.btn-secondary { background: var(--secondary); color: #05202b; box-shadow: 0 6px 18px rgba(34,211,238,.25); }
.btn-ghost { background: transparent; border: 1px solid rgba(255,255,255,.12); color: var(--text); box-shadow: none; }
.btn-ghost:hover { background: rgba(255,255,255,.06); }

/* Typography */
.page-title { font-size: 1.7rem; margin: 1.2rem 0 .8rem; letter-spacing: .2px; }

/* Cards and grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin: 1rem 0 1.5rem;
}

.card {
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.card-media { aspect-ratio: 1.2/1; background: rgba(255,255,255,.03); overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: .9rem; display: grid; gap: .5rem; }
.card-title { margin: 0; font-size: 1.05rem; }
.card-text { margin: 0; color: var(--muted); font-size: .95rem; line-height: 1.35; min-height: 2.6em; }
.meta { display: flex; align-items: center; justify-content: space-between; margin: .4rem 0 .2rem; }
.price { font-weight: 700; color: #c7d2fe; }
.stock { font-size: .9rem; color: #93c5fd; }
.inline-form { display: grid; gap: .5rem; }

/* Forms */
form { display: grid; gap: .5rem; margin: .6rem 0; }
input, select, textarea {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: .6rem;
  padding: .55rem .7rem;
}
label { color: #cbd5e1; font-size: .9rem; }

/* Messages */
.messages { list-style: none; padding: 0; margin: 1rem 0; display: grid; gap: .5rem; }
.message {
  display: flex; align-items: center; justify-content: space-between; gap: .75rem;
  background: rgba(34, 197, 94, .12);
  border: 1px solid rgba(34, 197, 94, .35);
  color: #dcfce7;
  padding: .6rem .75rem;
  border-radius: .6rem;
}
.message.info { background: rgba(59,130,246,.12); border-color: rgba(59,130,246,.35); color: #dbeafe; }
.message.success { background: rgba(16,185,129,.12); border-color: rgba(16,185,129,.35); color: #d1fae5; }
.message.warning { background: rgba(245,158,11,.12); border-color: rgba(245,158,11,.35); color: #fef3c7; }
.message.error { background: rgba(239,68,68,.12); border-color: rgba(239,68,68,.35); color: #fee2e2; }
.message-close { appearance: none; border: 0; background: transparent; color: inherit; font-size: 1.2rem; line-height: 1; cursor: pointer; opacity: .8; }
.message-close:hover { opacity: 1; }

/* Pagination */
.pagination { display: flex; justify-content: center; margin: .8rem 0 1.2rem; }
.pagination ul { list-style: none; display: flex; gap: .5rem; padding: 0; margin: 0; flex-wrap: wrap; }
.pagination a { color: var(--text); text-decoration: none; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); padding: .35rem .6rem; border-radius: .5rem; }
.pagination a:hover { background: rgba(255,255,255,.1); }
.pagination .current { color: #cbd5e1; padding: .35rem .6rem; }

/* Footer */
.footer { border-top: 1px solid rgba(255,255,255,.06); margin-top: 2rem; }
.footer .container { padding: 1rem 0; color: var(--muted); font-size: .9rem; }

/* Utility */
hr { border: none; border-top: 1px solid rgba(255,255,255,.08); margin: 1rem 0; }
.small { font-size: .9rem; color: var(--muted); }


/* Auth pages */
.auth-wrapper { min-height: calc(100vh - 160px); display: grid; place-items: center; }
.auth-card { width: min(420px, 100%); padding: 1rem; background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03)); border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); box-shadow: var(--shadow); }
.auth-card .page-title { margin-top: 0; }
.btn-block { width: 100%; justify-content: center; }
.image-preview { margin: .5rem auto 1rem; border: 1px solid rgba(255,255,255,.12); border-radius: .6rem; overflow: hidden; background: rgba(255,255,255,.04); }
.image-preview img { width: 100%; height: auto; display: block; object-fit: cover; }

.auth-form { max-width: 360px; margin-inline: auto; }
.auth-form p { margin: 0 0 .75rem; }
.auth-form label { display: block; margin-bottom: .25rem; text-align: left; }
.auth-form input, .auth-form select, .auth-form textarea { width: 100%; }

.refund-form { max-width: 360px; margin-inline: auto; }
.refund-form p { margin: 0 0 .5rem; }
.refund-form label { display: block; margin-bottom: .25rem; text-align: left; }
.refund-form input, .refund-form select, .refund-form textarea { width: 100%; }

.auth-card .helptext, .auth-card .help-text { display: none !important; }
.actions { display: flex; gap: .5rem; margin-top: .5rem; align-items: center; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { filter: brightness(1.1); }



@media (max-width: 700px) {
  .nav-inner { flex-wrap: wrap; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav-links { display: none; width: 100%; flex-direction: column; align-items: flex-start; gap: .5rem; padding-top: .5rem; }
  .nav-links.open { display: flex; }
  .logout-form { width: 100%; }
  .logout-form .btn { width: 100%; justify-content: center; }
  .page-title { font-size: 1.4rem; }
}