/* ============================================
   admin.css — Panel administración
   ============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --brand: #5a2d2d; --brand-dark: #3d1e1e;
  --txt: #1a1a1a; --txt2: #666;
  --bg: #fff; --bg2: #f7f5f3;
  --border: #e2ddd8;
  --sidebar-w: 210px;
  --nav-h: 52px;
  --radius: 8px;
}
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg2); color: var(--txt); font-size: 14px; }
a { text-decoration: none; color: inherit; }
input, select, textarea { font-family: inherit; font-size: 14px; }

/* LOGIN */
.login-body { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.login-card { background: var(--bg); border: 1px solid var(--border); border-radius: 16px; padding: 36px 32px; width: 100%; max-width: 380px; }
.login-logo { font-size: 40px; text-align: center; margin-bottom: 12px; }
.login-card h1 { font-size: 20px; font-weight: 700; text-align: center; margin-bottom: 6px; }
.login-sub { text-align: center; color: var(--txt2); font-size: 13px; margin-bottom: 24px; }

/* NAV ADMIN */
.admin-nav { position: fixed; top: 0; left: 0; right: 0; height: var(--nav-h); background: var(--brand); color: #fff; z-index: 100; display: flex; flex-direction: column; justify-content: center; }
.admin-nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 0 16px; height: 100%; }
.admin-brand { font-size: 16px; font-weight: 700; color: #fff; }
.admin-nav-links { display: flex; gap: 12px; }
.nav-link { color: rgba(255,255,255,.8); font-size: 13px; }
.nav-link:hover { color: #fff; }
.nav-link-danger { color: #ffaaaa; }
.admin-nav-mobile { display: none; background: var(--brand-dark); padding: 0 16px; }
.admin-nav-mobile a { color: rgba(255,255,255,.8); font-size: 13px; padding: 6px 10px; display: inline-block; }

/* SIDEBAR */
.admin-sidebar { position: fixed; top: var(--nav-h); left: 0; bottom: 0; width: var(--sidebar-w); background: var(--bg); border-right: 1px solid var(--border); overflow-y: auto; z-index: 50; }
.sidebar-nav { padding: 16px 0; }
.sidebar-link { display: flex; align-items: center; gap: 8px; padding: 10px 20px; color: var(--txt2); font-size: 14px; transition: all .15s; border-left: 3px solid transparent; }
.sidebar-link:hover { background: var(--bg2); color: var(--txt); }
.sidebar-link.active { background: #f5ece8; color: var(--brand); border-left-color: var(--brand); font-weight: 600; }
.sidebar-link-danger { color: #c0392b; }
.sidebar-hr { border: none; border-top: 1px solid var(--border); margin: 8px 0; }

/* MAIN */
.admin-main { margin-left: var(--sidebar-w); margin-top: var(--nav-h); min-height: calc(100vh - var(--nav-h)); }
.admin-wrap { max-width: 960px; margin: 0 auto; padding: 28px 24px; }

/* PÁGINA */
.page-title { font-size: 22px; font-weight: 700; margin-bottom: 20px; }
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.page-header .page-title { margin-bottom: 0; }

/* CARDS */
.card { background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 20px; margin-bottom: 16px; }
.card-title { font-size: 15px; font-weight: 700; margin-bottom: 16px; }

/* STATS */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.stat-card { background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 20px; text-align: center; }
.stat-num { font-size: 32px; font-weight: 800; color: var(--brand); }
.stat-label { font-size: 13px; color: var(--txt2); margin-top: 4px; }

/* QUICK LINKS */
.quick-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 16px; }
.quick-card { background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 20px; display: flex; flex-direction: column; align-items: center; gap: 8px; font-size: 13px; color: var(--txt); transition: border-color .15s; text-align: center; }
.quick-card:first-child { font-size: 28px; }
.quick-card span { font-size: 13px; }
.quick-card:hover { border-color: var(--brand); color: var(--brand); }

/* LINK BOX */
.link-box { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; font-size: 13px; color: var(--txt2); word-break: break-all; }

/* FORMS */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 12px; font-weight: 600; color: var(--txt2); margin-bottom: 5px; text-transform: uppercase; letter-spacing: .4px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg); color: var(--txt); outline: none; transition: border-color .15s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--brand); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* BUTTONS */
.btn-primary { background: var(--brand); color: #fff; padding: 10px 20px; border-radius: var(--radius); font-size: 14px; font-weight: 600; border: none; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; transition: background .15s; }
.btn-primary:hover { background: var(--brand-dark); }
.btn-secondary { background: var(--bg); border: 1px solid var(--border); color: var(--txt); padding: 9px 16px; border-radius: var(--radius); font-size: 13px; cursor: pointer; display: inline-flex; align-items: center; gap: 5px; transition: border-color .15s; }
.btn-secondary:hover { border-color: var(--brand); color: var(--brand); }
.btn-sm { padding: 5px 10px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); font-size: 12px; cursor: pointer; transition: border-color .15s; }
.btn-sm:hover { border-color: var(--brand); }
.btn-sm-danger { border-color: #f09595; color: #a32d2d; background: #fff5f5; }
.btn-sm-danger:hover { background: #ffe8e8; }

/* TABLE */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; }
.admin-table { width: 100%; border-collapse: collapse; background: var(--bg); }
.admin-table thead { background: var(--bg2); }
.admin-table th { padding: 10px 14px; text-align: left; font-size: 12px; font-weight: 600; color: var(--txt2); text-transform: uppercase; letter-spacing: .4px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.admin-table td { padding: 10px 14px; border-bottom: 1px solid var(--border); font-size: 13px; vertical-align: middle; }
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tbody tr:hover { background: var(--bg2); }

/* BADGES */
.badge { display: inline-block; padding: 3px 8px; border-radius: 20px; font-size: 11px; font-weight: 700; }
.badge-green { background: #e8f7ee; color: #1a7a40; }
.badge-gray { background: #f0f0f0; color: #666; }
.badge-gold { background: #fef3d0; color: #8a6000; }

/* ALERTS */
.alert { padding: 12px 16px; border-radius: var(--radius); font-size: 14px; margin-bottom: 16px; }
.alert-success { background: #e8f7ee; border: 1px solid #b2dfc4; color: #1a6036; }
.alert-error { background: #fef0f0; border: 1px solid #f5c0c0; color: #8a2020; }

/* PAGINATION */
.pagination { display: flex; align-items: center; gap: 10px; }
.pag-btn { padding: 7px 14px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg); color: var(--txt); font-size: 13px; }
.pag-btn.disabled { opacity: .4; cursor: default; }
.pag-info { font-size: 13px; color: var(--txt2); }

/* RESPONSIVE */
@media (max-width: 768px) {
  .admin-sidebar { display: none; }
  .admin-nav-mobile { display: flex; overflow-x: auto; }
  .admin-main { margin-left: 0; margin-top: calc(var(--nav-h) + 38px); }
  .admin-wrap { padding: 16px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .quick-links { grid-template-columns: 1fr 1fr; }
  .admin-nav-inner { height: var(--nav-h); }
}