/* ── Reset & Base ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 15px; -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: #1a1a2e;
    background: #f5f6fa;
}
a { color: #2563eb; text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }

/* ── Variables ────────────────────────────────────────────────── */
:root {
    --accent:     #2563eb;
    --accent-lt:  #eff6ff;
    --success:    #16a34a;
    --success-lt: #f0fdf4;
    --danger:     #dc2626;
    --danger-lt:  #fef2f2;
    --warning:    #d97706;
    --warning-lt: #fffbeb;
    --neutral:    #6b7280;
    --border:     #e5e7eb;
    --surface:    #ffffff;
    --radius:     10px;
    --radius-sm:  6px;
    --shadow:     0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
    --shadow-md:  0 4px 12px rgba(0,0,0,.10);
    --sidebar-w:  220px;
}

/* ── Login page ───────────────────────────────────────────────── */
.login-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f5f6fa 0%, #e8eaf6 100%);
}
.login-card {
    background: var(--surface);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    padding: 40px 36px;
    width: 100%;
    max-width: 400px;
}
.login-logo {
    text-align: center;
    margin-bottom: 28px;
}
.login-logo .logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px; height: 52px;
    background: var(--accent);
    border-radius: 14px;
    font-size: 24px;
    margin-bottom: 12px;
}
.login-logo h1 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0;
    color: #111;
}
.login-logo p {
    font-size: .85rem;
    color: var(--neutral);
    margin: 4px 0 0;
}

/* ── App shell ────────────────────────────────────────────────── */
.app-shell {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-w);
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
}
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px 18px;
    border-bottom: 1px solid var(--border);
    font-weight: 700;
    font-size: .95rem;
    color: #111;
    text-decoration: none;
}
.sidebar-brand:hover { text-decoration: none; }
.brand-icon {
    width: 34px; height: 34px;
    background: var(--accent);
    border-radius: 9px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; flex-shrink: 0;
}
.sidebar-nav {
    flex: 1;
    padding: 12px 10px;
    overflow-y: auto;
}
.nav-section {
    margin-bottom: 6px;
}
.nav-section-label {
    font-size: .7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: #9ca3af;
    padding: 8px 10px 4px;
}
.nav-link {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    color: #374151;
    font-size: .9rem;
    transition: background .15s, color .15s;
    text-decoration: none;
}
.nav-link:hover { background: #f3f4f6; color: #111; text-decoration: none; }
.nav-link.active { background: var(--accent-lt); color: var(--accent); font-weight: 600; }
.nav-link svg { width: 17px; height: 17px; opacity: .7; flex-shrink: 0; }
.nav-link.active svg { opacity: 1; }

.sidebar-footer {
    padding: 14px 18px;
    border-top: 1px solid var(--border);
    font-size: .83rem;
    color: var(--neutral);
}
.sidebar-user { font-weight: 600; color: #111; display: block; margin-bottom: 2px; }
.sidebar-user-role { font-size: .75rem; }

/* Main content */
.main-content {
    margin-left: var(--sidebar-w);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 14px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky; top: 0; z-index: 50;
}
.topbar-title { font-size: 1.05rem; font-weight: 700; color: #111; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.page-body { padding: 28px; flex: 1; }

/* ── Cards ────────────────────────────────────────────────────── */
.card {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; gap: 10px;
}
.card-header h2 { margin: 0; font-size: .95rem; font-weight: 600; }
.card-body { padding: 20px; }
.card-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border);
    background: #fafafa;
    border-radius: 0 0 var(--radius) var(--radius);
}

/* ── Stat cards ───────────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex; flex-direction: column; gap: 6px;
}
.stat-card.accent { border-left: 3px solid var(--accent); }
.stat-card.success { border-left: 3px solid var(--success); }
.stat-card.danger  { border-left: 3px solid var(--danger); }
.stat-card.warning { border-left: 3px solid var(--warning); }
.stat-label { font-size: .8rem; font-weight: 500; color: var(--neutral); text-transform: uppercase; letter-spacing: .04em; }
.stat-value { font-size: 2rem; font-weight: 700; line-height: 1; color: #111; }
.stat-sub   { font-size: .8rem; color: var(--neutral); }

/* ── Table ────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
th {
    text-align: left; padding: 10px 14px;
    font-size: .75rem; font-weight: 600; text-transform: uppercase;
    letter-spacing: .04em; color: var(--neutral);
    border-bottom: 1px solid var(--border);
    background: #fafafa;
}
td { padding: 12px 14px; border-bottom: 1px solid #f3f4f6; vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #fafbff; }
.td-mono { font-family: ui-monospace, "SFMono-Regular", monospace; font-size: .8rem; color: var(--neutral); }

/* ── Badges ───────────────────────────────────────────────────── */
.badge {
    display: inline-flex; align-items: center;
    font-size: .72rem; font-weight: 600;
    padding: 3px 9px; border-radius: 20px;
    text-transform: uppercase; letter-spacing: .04em;
    white-space: nowrap;
}
.badge-active    { background: var(--success-lt); color: var(--success); }
.badge-suspended { background: var(--danger-lt);  color: var(--danger); }
.badge-expired   { background: var(--warning-lt); color: var(--warning); }
.badge-admin     { background: var(--accent-lt);  color: var(--accent); }
.badge-viewer    { background: #f3f4f6;            color: var(--neutral); }
.badge-success   { background: var(--success-lt); color: var(--success); }
.badge-error     { background: var(--danger-lt);  color: var(--danger); }
.badge-denied    { background: var(--warning-lt); color: var(--warning); }

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 16px; border-radius: var(--radius-sm);
    font-size: .875rem; font-weight: 500;
    border: none; cursor: pointer; transition: all .15s;
    text-decoration: none; white-space: nowrap;
    font-family: inherit;
}
.btn:hover { text-decoration: none; }
.btn-primary   { background: var(--accent); color: #fff; }
.btn-primary:hover   { background: #1d4ed8; color: #fff; }
.btn-secondary { background: #f3f4f6; color: #374151; border: 1px solid var(--border); }
.btn-secondary:hover { background: #e5e7eb; }
.btn-danger    { background: var(--danger-lt); color: var(--danger); border: 1px solid #fecaca; }
.btn-danger:hover    { background: #fee2e2; }
.btn-success   { background: var(--success-lt); color: var(--success); border: 1px solid #bbf7d0; }
.btn-success:hover   { background: #dcfce7; }
.btn-sm { padding: 5px 10px; font-size: .8rem; }
.btn-icon { padding: 7px; border-radius: var(--radius-sm); background: none; border: 1px solid var(--border); color: var(--neutral); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; }
.btn-icon:hover { background: #f3f4f6; }

/* ── Forms ────────────────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid.cols-1 { grid-template-columns: 1fr; }
.form-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group.span-2 { grid-column: span 2; }
label { font-size: .85rem; font-weight: 500; color: #374151; }
.required { color: var(--danger); }
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: .875rem;
    font-family: inherit;
    color: #111;
    background: #fff;
    transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}
input[readonly] { background: #f9fafb; color: var(--neutral); }
.form-hint { font-size: .78rem; color: var(--neutral); margin-top: 2px; }
.form-actions { display: flex; align-items: center; gap: 10px; padding-top: 8px; }
.input-copy { display: flex; gap: 0; }
.input-copy input { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.input-copy .btn  { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; flex-shrink: 0; }

/* ── Alerts / Flash ───────────────────────────────────────────── */
.alert {
    padding: 12px 16px; border-radius: var(--radius-sm);
    font-size: .875rem; margin-bottom: 18px;
    display: flex; align-items: flex-start; gap: 10px;
}
.alert-success { background: var(--success-lt); color: #14532d; border: 1px solid #bbf7d0; }
.alert-error   { background: var(--danger-lt);  color: #7f1d1d; border: 1px solid #fecaca; }
.alert-info    { background: var(--accent-lt);  color: #1e3a8a; border: 1px solid #bfdbfe; }

/* ── Empty state ──────────────────────────────────────────────── */
.empty-state {
    text-align: center; padding: 48px 20px;
    color: var(--neutral);
}
.empty-state svg { opacity: .3; margin-bottom: 12px; }
.empty-state p { margin: 0 0 16px; font-size: 1rem; }

/* ── Misc ─────────────────────────────────────────────────────── */
.text-muted  { color: var(--neutral); }
.text-sm     { font-size: .85rem; }
.text-xs     { font-size: .75rem; }
.text-mono   { font-family: ui-monospace, monospace; }
.font-medium { font-weight: 500; }
.font-bold   { font-weight: 700; }
.truncate    { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 220px; display: inline-block; }
.divider     { border: none; border-top: 1px solid var(--border); margin: 20px 0; }
.mt-4        { margin-top: 16px; }
.mb-4        { margin-bottom: 16px; }
.flex        { display: flex; }
.items-center{ align-items: center; }
.gap-2       { gap: 8px; }
.gap-3       { gap: 12px; }
.ml-auto     { margin-left: auto; }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .main-content { margin-left: 0; }
    .form-grid { grid-template-columns: 1fr; }
    .form-grid.span-2 { grid-column: span 1; }
}