:root {
    --hq-navy: #0d1b2a;
    --hq-navy-mid: #1b263b;
    --hq-accent: #3d5a80;
    --hq-highlight: #e0e1dd;
    --hq-primary: #0066cc;
    --hq-primary-dark: #004c99;
    --hq-danger: #c0392b;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", system-ui, sans-serif; color: #1a1a2e; }

.muted { color: #6b7280; }
.small { font-size: 0.85rem; }
.text-end { text-align: right; }

.login-body {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--hq-navy) 0%, var(--hq-accent) 55%, #243b55 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}
.login-shell { width: 100%; max-width: 420px; }
.login-card {
    background: #fff;
    border-radius: 16px;
    padding: 40px 36px;
    box-shadow: 0 24px 48px rgba(0,0,0,.35);
}
.login-brand { text-align: center; margin-bottom: 28px; }
.login-logo {
    width: 56px; height: 56px; margin: 0 auto 16px;
    border-radius: 14px;
    background: linear-gradient(145deg, var(--hq-primary), var(--hq-primary-dark));
    color: #fff; font-weight: 700; font-size: 1.25rem;
    display: flex; align-items: center; justify-content: center;
}
.login-brand h1 { font-size: 1.35rem; margin: 0 0 4px; }

.lbl { display: block; font-size: 0.8rem; font-weight: 600; color: #4b5563; margin: 12px 0 6px; }
.inp {
    width: 100%; padding: 10px 12px; border: 1px solid #d1d5db;
    border-radius: 8px; font-size: 1rem;
}
.inp-sm { width: auto; min-width: 140px; padding: 6px 8px; font-size: 0.9rem; }

.btn {
    display: inline-block; padding: 10px 18px; border-radius: 8px;
    border: none; cursor: pointer; font-weight: 600; font-size: 0.95rem;
    text-decoration: none; text-align: center;
}
.btn-block { width: 100%; margin-top: 8px; }
.btn-hq { background: linear-gradient(145deg, var(--hq-primary), var(--hq-primary-dark)); color: #fff; }
.btn-hq:hover { filter: brightness(1.05); }
.btn-sm { padding: 6px 12px; font-size: 0.85rem; background: #e5e7eb; color: #111; }
.btn-danger { background: #fee2e2; color: var(--hq-danger); }
.btn-ghost { background: transparent; color: var(--hq-highlight); border: 1px solid rgba(255,255,255,.25); }

.alert { padding: 12px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 0.9rem; }
.alert-danger { background: #fee2e2; color: #991b1b; }
.alert-success { background: #d1fae5; color: #065f46; }

.admin-body { background: #f4f6f9; min-height: 100vh; }
.admin-shell { display: flex; min-height: 100vh; }
.admin-sidebar {
    width: 260px; flex-shrink: 0;
    background: linear-gradient(180deg, var(--hq-navy), var(--hq-navy-mid));
    color: var(--hq-highlight); padding: 24px 16px; display: flex; flex-direction: column;
}
.sidebar-brand { display: flex; gap: 12px; align-items: center; padding-bottom: 20px; border-bottom: 1px solid rgba(255,255,255,.1); margin-bottom: 16px; }
.sidebar-logo {
    width: 44px; height: 44px; border-radius: 10px; background: var(--hq-primary);
    display: flex; align-items: center; justify-content: center; font-weight: 700;
}
.sidebar-title { font-weight: 600; }
.sidebar-sub { font-size: 0.75rem; opacity: .65; }
.sidebar-nav { flex: 1; }
.sidebar-link {
    display: block; padding: 12px 14px; border-radius: 10px; color: var(--hq-highlight);
    text-decoration: none; font-weight: 500;
}
.sidebar-link.active { background: rgba(0,102,204,.35); color: #fff; }
.sidebar-footer { padding-top: 16px; border-top: 1px solid rgba(255,255,255,.1); }

.admin-main { flex: 1; padding: 32px 40px; }
.admin-header h2 { margin: 0 0 8px; font-weight: 600; color: var(--hq-navy); }

.grid-admin { display: grid; grid-template-columns: 320px 1fr; gap: 24px; align-items: start; }
.card {
    background: #fff; border-radius: 12px; padding: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,.08);
}
.card h3 { margin: 0 0 16px; font-size: 1.1rem; }
.card-wide { min-width: 0; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 10px; border-bottom: 1px solid #e5e7eb; text-align: left; vertical-align: middle; }
th { background: #f9fafb; font-size: 0.8rem; text-transform: uppercase; letter-spacing: .03em; color: #6b7280; }
.empty { text-align: center; color: #9ca3af; padding: 32px !important; }
.inline-form { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.hint { margin-top: 16px; font-size: 0.8rem; color: #6b7280; }
code { font-size: 0.75rem; word-break: break-all; }

@media (max-width: 900px) {
    .admin-shell { flex-direction: column; }
    .admin-sidebar { width: 100%; }
    .grid-admin { grid-template-columns: 1fr; }
}