:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --bg: #f1f5f9;
    --card: #ffffff;
    --text: #0f172a;
    --muted: #64748b;
    --border: #e2e8f0;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #d97706;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
}

h1, h2, h3 { font-weight: 600; margin: 0 0 .5rem; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Admin shell ---------- */
.admin-shell { display: flex; min-height: 100vh; }
.admin-sidebar { width: 230px; background: #0f172a; color: #cbd5e1; display: flex; flex-direction: column; }
.admin-brand { padding: 1.2rem 1.25rem; font-weight: 700; color: #fff; border-bottom: 1px solid #1e293b; }
.admin-nav { display: flex; flex-direction: column; padding: .5rem 0; }
.admin-nav a { color: #cbd5e1; padding: .65rem 1.25rem; }
.admin-nav a:hover { background: #1e293b; text-decoration: none; }
.admin-nav a.active { background: var(--primary); color: #fff; }
.admin-content { flex: 1; display: flex; flex-direction: column; }
.admin-topbar { display: flex; justify-content: space-between; align-items: center; padding: .8rem 1.5rem; background: var(--card); border-bottom: 1px solid var(--border); }
.admin-user { display: flex; align-items: center; gap: .75rem; color: var(--muted); }
.role-pill { background: var(--bg); border: 1px solid var(--border); border-radius: 999px; padding: .1rem .55rem; font-size: .75rem; }
.admin-main { padding: 1.5rem; }

/* ---------- Cards / layout ---------- */
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 1.5rem; box-shadow: 0 1px 2px rgba(0,0,0,.04); }
.card + .card { margin-top: 1.25rem; }
.page-pad { padding: 1.5rem; }
.auth-card { width: 100%; max-width: 420px; }
.grid { display: grid; gap: 1rem; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 1rem; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 1.1rem 1.25rem; }
.stat .value { font-size: 1.8rem; font-weight: 700; color: var(--primary); }
.stat .label { color: var(--muted); font-size: .85rem; }

/* ---------- Forms ---------- */
label { display: block; font-size: .85rem; color: var(--muted); margin: .6rem 0 .25rem; }
.input, input[type=text], input[type=password], input[type=tel], input[type=email], input[type=number], input[type=date], select, textarea {
    width: 100%; padding: .6rem .7rem; border: 1px solid var(--border); border-radius: 8px;
    font-size: .95rem; background: #fff; color: var(--text);
}
textarea { min-height: 90px; resize: vertical; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap: .75rem; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: .4rem; border: none; border-radius: 8px; padding: .55rem 1rem;
    font-size: .9rem; cursor: pointer; background: var(--primary); color: #fff; }
.btn:hover { background: var(--primary-dark); }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn-secondary { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg); }
.btn-danger { background: var(--danger); }
.btn-sm { padding: .35rem .65rem; font-size: .8rem; }
.btn-link { background: none; border: none; color: var(--primary); cursor: pointer; padding: 0; }

/* ---------- Tables ---------- */
table.data { width: 100%; border-collapse: collapse; background: var(--card); }
table.data th, table.data td { text-align: left; padding: .6rem .75rem; border-bottom: 1px solid var(--border); font-size: .9rem; }
table.data th { color: var(--muted); font-weight: 600; background: #f8fafc; }
table.data tr:hover td { background: #f8fafc; }

/* ---------- Misc ---------- */
.badge { display: inline-block; padding: .15rem .55rem; border-radius: 999px; font-size: .75rem; font-weight: 600; }
.badge.active, .badge.Approved, .badge.Completed { background: #dcfce7; color: var(--success); }
.badge.draft, .badge.Pending, .badge.Submitted { background: #e0f2fe; color: #0369a1; }
.badge.inactive, .badge.Expired, .badge.Rejected { background: #fee2e2; color: var(--danger); }
.badge.upcoming, .badge.UnderReview { background: #fef3c7; color: var(--warning); }
.alert { padding: .7rem .9rem; border-radius: 8px; margin: .75rem 0; font-size: .9rem; }
.alert.error { background: #fee2e2; color: var(--danger); }
.alert.success { background: #dcfce7; color: var(--success); }
.alert.info { background: #e0f2fe; color: #0369a1; }
.muted { color: var(--muted); }
.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }
.right { display: flex; gap: .5rem; align-items: center; }
.center { text-align: center; }
.spacer { flex: 1; }
.modal-backdrop { position: fixed; inset: 0; background: rgba(15,23,42,.45); display: flex; align-items: center; justify-content: center; z-index: 50; }
.modal { background: #fff; border-radius: 12px; padding: 1.5rem; width: 100%; max-width: 560px; max-height: 90vh; overflow:auto; }
.qr-img { width: 140px; height: 140px; border: 1px solid var(--border); border-radius: 8px; }
.option-row { display: flex; align-items: center; gap: .5rem; margin: .3rem 0; }