:root {
  --navy-950: #0a1f38;
  --navy-900: #0f2a4a;
  --navy-800: #163a5f;
  --blue-500: #2e86c1;
  --blue-100: #e7f2fb;
  --gold-600: #b98f26;
  --gold-500: #c9a227;
  --gold-100: #f7ecc9;
  --ink: #1c2b3a;
  --muted: #66788a;
  --line: #e3e9ef;
  --bg-soft: #f3f6f9;
  --white: #ffffff;
  --success: #1f8a4c;
  --success-bg: #e9f7ef;
  --danger: #c0392b;
  --danger-bg: #fdecea;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 6px 20px rgba(15, 42, 74, 0.08);
  --font: 'Segoe UI', 'Inter', -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: var(--font); background: var(--bg-soft); color: var(--ink); }
.container { max-width: 1180px; margin: 0 auto; }
.flash-wrap { padding-top: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.icon { width: 20px; height: 20px; }
.icon-sm { width: 16px; height: 16px; flex-shrink: 0; }

/* Login */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(120deg, var(--navy-950), var(--navy-800)); padding: 20px; }
.login-card { background: var(--white); border-radius: var(--radius); box-shadow: 0 20px 50px rgba(0,0,0,.25); padding: 44px; width: 100%; max-width: 400px; text-align: center; }
.login-card img { height: 44px; margin: 0 auto 26px; }
.login-card h1 { font-size: 20px; margin: 0 0 6px; color: var(--navy-900); }
.login-card p.subtitle { color: var(--muted); font-size: 14px; margin-bottom: 26px; }

/* Layout */
.admin-wrap { display: flex; min-height: 100vh; }
.sidebar { width: 268px; background: var(--navy-950); color: #cddceb; flex-shrink: 0; padding: 22px 0; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.sidebar-brand { display: flex; align-items: center; gap: 10px; padding: 0 22px 22px; border-bottom: 1px solid rgba(255,255,255,.08); margin-bottom: 14px; }
.sidebar-brand img { height: 32px; }
.sidebar-brand span { font-weight: 800; color: var(--white); font-size: 15px; }
.side-group { margin-bottom: 6px; }
.side-group-title { font-size: 11px; text-transform: uppercase; letter-spacing: .8px; color: #6f88a3; padding: 14px 22px 8px; font-weight: 700; }
.side-link { display: flex; align-items: center; gap: 12px; padding: 10px 22px; font-size: 14px; color: #cddceb; font-weight: 600; }
.side-link:hover { background: rgba(255,255,255,.06); color: var(--white); }
.side-link.active { background: rgba(201,162,39,.14); color: var(--gold-500); border-right: 3px solid var(--gold-500); }
.side-link .icon-sm { flex-shrink: 0; }

.main-col { flex: 1; min-width: 0; }
.admin-topbar { background: var(--white); border-bottom: 1px solid var(--line); padding: 16px 30px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 10; }
.admin-topbar h1 { font-size: 19px; margin: 0; color: var(--navy-900); }
.topbar-user { display: flex; align-items: center; gap: 14px; font-size: 14px; }
.topbar-user .avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--navy-900); color: var(--gold-500); display: flex; align-items: center; justify-content: center; font-weight: 800; }
.admin-content { padding: 28px 30px 60px; }

/* Cards / KPIs */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 28px; }
.kpi-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); display: flex; gap: 16px; align-items: center; }
.kpi-card .kpi-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--blue-100); color: var(--navy-900); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.kpi-card .kpi-value { font-size: 26px; font-weight: 800; color: var(--navy-900); line-height: 1; }
.kpi-card .kpi-label { font-size: 13px; color: var(--muted); margin-top: 4px; }

.panel { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); margin-bottom: 26px; }
.panel-head { padding: 18px 24px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.panel-head h2 { margin: 0; font-size: 16px; color: var(--navy-900); }
.panel-head p { margin: 4px 0 0; font-size: 13px; color: var(--muted); }
.panel-body { padding: 24px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 8px; font-weight: 700; font-size: 13.5px; border: 1px solid transparent; cursor: pointer; transition: all .15s; }
.btn-primary { background: var(--navy-900); color: var(--white); }
.btn-primary:hover { background: var(--navy-800); }
.btn-gold { background: var(--gold-500); color: var(--navy-950); }
.btn-gold:hover { background: var(--gold-600); }
.btn-outline { background: var(--white); border-color: var(--line); color: var(--navy-900); }
.btn-outline:hover { background: var(--bg-soft); }
.btn-danger { background: var(--danger-bg); color: var(--danger); }
.btn-danger:hover { background: #f9d9d4; }
.btn-sm { padding: 6px 12px; font-size: 12.5px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* Table */
.table-wrap { overflow-x: auto; }
table.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th, .data-table td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: middle; }
.data-table th { background: var(--bg-soft); color: var(--navy-900); font-weight: 700; font-size: 12.5px; text-transform: uppercase; letter-spacing: .4px; }
.data-table tr:hover td { background: #fafcfe; }
.data-table .actions { display: flex; gap: 8px; white-space: nowrap; }
.thumb { width: 42px; height: 42px; border-radius: 8px; object-fit: cover; background: var(--bg-soft); }
.status-pill { display: inline-flex; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.status-active { background: var(--success-bg); color: var(--success); }
.status-inactive { background: #f1f1f1; color: #777; }
.status-unread { background: var(--gold-100); color: var(--gold-600); }
.empty-state { text-align: center; padding: 40px 20px; color: var(--muted); }

/* Forms */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { display: block; font-weight: 700; font-size: 13px; color: var(--navy-900); margin-bottom: 7px; }
.form-hint { font-size: 12px; color: var(--muted); margin-top: 5px; }
input[type=text], input[type=email], input[type=tel], input[type=password], input[type=date], input[type=number], input[type=url], input[type=file], select, textarea {
  width: 100%; padding: 10px 13px; border: 1px solid var(--line); border-radius: var(--radius-sm); font-size: 14px;
  font-family: var(--font); color: var(--ink); background: var(--white);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--blue-500); }
textarea { resize: vertical; min-height: 100px; }
.checkbox-row { display: flex; align-items: center; gap: 10px; }
.checkbox-row input { width: auto; }
.current-image { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.current-image img { max-width: 140px; max-height: 70px; width: auto; height: auto; object-fit: contain; border-radius: 8px; border: 1px solid var(--line); background: var(--white); padding: 4px; }

/* Flash */
.flash { display: flex; align-items: center; gap: 10px; padding: 13px 16px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; margin-bottom: 16px; }
.flash-success { background: var(--success-bg); color: var(--success); border: 1px solid #bfe8cf; }
.flash-error { background: var(--danger-bg); color: var(--danger); border: 1px solid #f5c6c0; }

.settings-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 22px; }
.settings-tabs a { padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line); font-size: 13px; font-weight: 700; color: var(--navy-800); }
.settings-tabs a.active, .settings-tabs a:hover { background: var(--navy-900); color: var(--white); border-color: var(--navy-900); }

.badge-count { background: var(--gold-500); color: var(--navy-950); font-size: 11px; font-weight: 800; padding: 2px 8px; border-radius: 999px; margin-left: auto; }

@media (max-width: 900px) {
  .sidebar { position: fixed; left: -280px; top: 0; z-index: 200; transition: left .2s; box-shadow: 0 0 40px rgba(0,0,0,.3); }
  .sidebar.open { left: 0; }
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .admin-content { padding: 20px 16px 50px; }
  .admin-topbar { padding: 14px 16px; }
}