:root {
    --bg: #0b1220;
    --bg-2: #111827;
    --bg-3: #1f2937;
    --border: #1f2a3a;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --primary: #3b82f6;
    --primary-2: #2563eb;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
    background: radial-gradient(1200px 600px at 10% -10%, #1e293b 0%, transparent 60%),
                radial-gradient(900px 500px at 100% 0%, #0f172a 0%, transparent 60%),
                var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
                 Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    min-height: 100vh;
    margin: 0;
}

a { color: #93c5fd; }
a:hover { color: #bfdbfe; }

/* ===== Auth screens (login, register) ===== */
.auth-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: rgba(17, 24, 39, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.auth-card h1 {
    font-size: 1.5rem;
    margin: 0 0 6px;
}

.auth-card .subtitle {
    color: var(--muted);
    margin: 0 0 24px;
    font-size: .95rem;
}

/* ===== Forms ===== */
.form-control,
.form-select,
input.form-control {
    background-color: #0f172a;
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 10px;
    height: 46px;
}
.form-control:focus {
    background-color: #0f172a;
    color: var(--text);
    border-color: var(--primary);
    box-shadow: 0 0 0 .2rem rgba(59,130,246,.25);
}
.form-control::placeholder { color: #64748b; }

.btn {
    border-radius: 10px;
    font-weight: 500;
    height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 16px;
}
.btn-sm { height: 34px; padding: 0 10px; font-size: .85rem; }
.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-2); border-color: var(--primary-2); }
.btn-success { background: var(--success); border-color: var(--success); }
.btn-danger { background: var(--danger); border-color: var(--danger); }
.btn-warning { background: var(--warning); border-color: var(--warning); color: #1f2937; }
.btn-outline-light { color: var(--text); border-color: var(--border); }
.btn-outline-light:hover { background: var(--bg-3); color: var(--text); }

/* ===== Cards ===== */
.app-card {
    background: rgba(17, 24, 39, 0.85);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,.35);
}

/* ===== Dashboard header ===== */
.app-header {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}
.app-header h1 {
    font-size: 1.4rem;
    margin: 0;
}
.app-header .actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* ===== Table ===== */
.table {
    color: var(--text);
    margin-bottom: 0;
}
.table > :not(caption) > * > * {
    background-color: transparent;
    color: var(--text);
    border-bottom-color: var(--border);
    vertical-align: middle;
}
.table thead th {
    text-transform: uppercase;
    letter-spacing: .04em;
    font-size: .75rem;
    color: var(--muted);
    border-bottom: 1px solid var(--border);
}
.table tbody tr:hover > * {
    background-color: rgba(59,130,246,.07);
}

.code-pill {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    background: #0f172a;
    border: 1px solid var(--border);
    padding: 4px 8px;
    border-radius: 8px;
    font-size: .85rem;
}

.badge-status {
    font-size: .72rem;
    padding: 4px 8px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: .04em;
    font-weight: 600;
}
.badge-pending { background: rgba(245,158,11,.15); color: #fbbf24; border: 1px solid rgba(245,158,11,.3); }
.badge-checked { background: rgba(16,185,129,.15); color: #34d399; border: 1px solid rgba(16,185,129,.3); }
.badge-none    { background: rgba(148,163,184,.15); color: #cbd5e1; border: 1px solid rgba(148,163,184,.3); }

/* ===== Modal ===== */
.modal-content {
    background: #0f172a;
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.modal-header, .modal-footer { border-color: var(--border); }
.btn-close { filter: invert(1) grayscale(1); }

/* ===== Floating scan button ===== */
.fab-scan {
    position: fixed;
    bottom: 22px;
    right: 22px;
    z-index: 999;
    height: 56px;
    padding: 0 20px;
    border-radius: 999px;
    background: var(--success);
    color: white;
    box-shadow: 0 12px 30px rgba(16,185,129,.4);
}
.fab-scan:hover { background: #059669; color: #fff; }

/* ===== Scanner page ===== */
.scanner-wrap {
    max-width: 560px;
    margin: 0 auto;
    padding: 24px 16px 96px;
}
#reader {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    border-radius: var(--radius);
    overflow: hidden;
    background: #000;
    border: 1px solid var(--border);
}

/* ===== Alerts ===== */
.alert {
    border-radius: 10px;
    border: 1px solid transparent;
}
.alert-success { background: rgba(16,185,129,.12); color: #6ee7b7; border-color: rgba(16,185,129,.3); }
.alert-danger  { background: rgba(239,68,68,.12);  color: #fca5a5; border-color: rgba(239,68,68,.3); }
.alert-info    { background: rgba(59,130,246,.12); color: #93c5fd; border-color: rgba(59,130,246,.3); }

/* ===== Mobile ===== */
@media (max-width: 600px) {
    .app-header h1 { font-size: 1.2rem; }
    .btn { font-size: .9rem; }
    .fab-scan span.label { display: none; }
    .fab-scan { padding: 0; width: 56px; }
    .app-card { padding: 16px; }
}

/* Hide actions on very small screens via icons-only */
.table .actions-cell {
    white-space: nowrap;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* Empty state */
.empty {
    text-align: center;
    padding: 32px 12px;
    color: var(--muted);
}