/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Tokens (light — default) ── */
:root {
    --bg: #ffffff;
    --bg-surface: #fff;
    --bg-card: #fff;
    --border: #d4d4d4;
    --border-heavy: #a3a3a3;
    --text: #1a1a1a;
    --text-secondary: #525252;
    --text-muted: #878787;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --accent: #7c3aed;
    --success: #16a34a;
    --warning: #ca8a04;
    --danger: #dc2626;
    --shadow: 3px 3px 0 #d4d4d4;
    --shadow-sm: 2px 2px 0 #d4d4d4;
    --radius: 3px;
    --transition: 0.15s ease;
}

/* ── Dark theme (opt-in via toggle) ── */
[data-theme="dark"] {
    --bg: #0f172a;
    --bg-surface: #1e293b;
    --bg-card: #1e293b;
    --border: #334155;
    --border-heavy: #475569;
    --text: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --primary: #60a5fa;
    --primary-hover: #3b82f6;
    --accent: #a78bfa;
    --success: #34d399;
    --warning: #fbbf24;
    --danger: #f87171;
    --shadow: 3px 3px 0 #1e293b;
    --shadow-sm: 2px 2px 0 #1e293b;
}

/* ── Theme toggle button ── */
.theme-toggle {
    background: none; border: 2px solid var(--border); border-radius: var(--radius);
    padding: 4px 8px; cursor: pointer; font-size: 0.85rem; line-height: 1;
    color: var(--text-muted); transition: all var(--transition);
}
.theme-toggle:hover { border-color: var(--primary); color: var(--primary); }

body {
    font-family: 'Lato', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
    font-size: 0.875rem;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout ── */
.container { max-width: 1320px; margin: 0 auto; padding: 0 24px; width: 100%; }

/* ── Navbar ── */
.navbar {
    background: var(--bg-surface);
    border-bottom: 2px solid var(--border);
    padding: 10px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
.navbar .container { display: flex; justify-content: space-between; align-items: center; }
.navbar .brand {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.02em;
    flex-shrink: 0;
}
.navbar .brand span { color: var(--primary); }

/* Hamburger */
.nav-hamburger {
    display: none;
    background: none; border: 2px solid var(--border); border-radius: var(--radius);
    padding: 6px 10px; cursor: pointer; font-size: 1.1rem; line-height: 1;
    color: var(--text); transition: all var(--transition);
}
.nav-hamburger:hover { border-color: var(--primary); color: var(--primary); }

.navbar .user-info {
    display: flex; align-items: center; gap: 12px;
    color: var(--text-muted); font-size: 0.8rem;
}
.navbar .user-info img {
    width: 28px; height: 28px; border-radius: 2px;
    border: 2px solid var(--border); object-fit: cover;
}
.navbar .user-info .user-name { color: var(--text-secondary); font-weight: 600; }
.navbar .user-info a {
    color: var(--text-muted); font-size: 0.76rem;
    padding: 4px 10px; border-radius: var(--radius);
    transition: color var(--transition);
}
.navbar .user-info a:hover { color: var(--danger); text-decoration: none; }

/* Nav links */
.nav-link {
    color: var(--text-muted); font-weight: 600; font-size: 0.78rem;
    text-decoration: none; text-transform: uppercase; letter-spacing: 0.5px;
    padding: 4px 2px;
}
.nav-link:hover { color: var(--text); text-decoration: none; }
.nav-link-active { color: var(--primary); }

/* Nav dropdown */
.nav-dropdown { position: relative; display: inline-flex; }
.nav-dropdown-trigger {
    color: var(--text-muted); font-weight: 600; font-size: 0.78rem;
    text-transform: uppercase; letter-spacing: 0.5px;
    cursor: pointer; display: inline-flex; align-items: center; gap: 3px;
    transition: color var(--transition);
}
.nav-dropdown-trigger:hover { color: var(--text); }
.nav-dropdown-trigger .dd-arrow {
    font-size: 0.55rem; transition: transform 0.15s ease;
}
.nav-dropdown.open .dd-arrow { transform: rotate(180deg); }
.nav-dropdown.open .nav-dropdown-trigger { color: var(--primary); }
.nav-dropdown-menu {
    display: none; position: absolute; top: calc(100% + 8px); right: 0;
    background: var(--bg-card); border: 2px solid var(--border);
    border-radius: var(--radius); box-shadow: var(--shadow);
    z-index: 200; padding: 10px;
}
.nav-dropdown.open .nav-dropdown-menu { display: flex; gap: 6px; }
.nav-dropdown-menu .dd-col { min-width: 150px; }
.nav-dropdown-menu .dd-group-label {
    font-size: 0.6rem; font-weight: 700;
    color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.8px;
    padding: 4px 10px 3px; border-bottom: 1px solid var(--border); margin-bottom: 3px;
}
.nav-dropdown-menu a {
    display: block; padding: 5px 10px; font-size: 0.72rem; font-weight: 600;
    color: var(--text-secondary); text-decoration: none;
    text-transform: uppercase; letter-spacing: 0.3px;
    transition: all var(--transition); border-radius: var(--radius);
    white-space: nowrap;
}
.nav-dropdown-menu a:hover { background: var(--bg); color: var(--primary); text-decoration: none; }
.nav-dropdown-menu a.dd-active { color: var(--primary); }

/* ── Page ── */
.page { padding: 28px 0 48px; }
.page-header { margin-bottom: 24px; }
.page-header h1 {
    font-size: 1.5rem; font-weight: 700;
    letter-spacing: -0.02em; margin-bottom: 4px;
    color: var(--text);
}
.page-header p { color: var(--text-muted); font-size: 0.85rem; }

/* ── Cards ── */
.card {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    transition: border-color var(--transition);
}
.card:hover { border-color: var(--border-heavy); }
.card h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.card p { color: var(--text-muted); font-size: 0.84rem; line-height: 1.6; }

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 14px;
}

/* ── Stats ── */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 10px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 14px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}
.stat-card:hover { border-color: var(--border-heavy); }
.stat-card .value {
    font-size: 1.6rem; font-weight: 700;
    letter-spacing: -0.03em; color: var(--text);
}
.stat-card .label {
    color: var(--text-muted); font-size: 0.68rem; font-weight: 700;
    margin-top: 2px; text-transform: uppercase; letter-spacing: 0.8px;
}

/* ── Buttons ── */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 18px; border: 2px solid transparent; border-radius: var(--radius);
    font-size: 0.8rem; font-weight: 700; cursor: pointer;
    transition: all var(--transition); text-decoration: none;
    color: #fff; text-transform: uppercase; letter-spacing: 0.3px;
    box-shadow: var(--shadow-sm);
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn-success { background: var(--success); border-color: var(--success); color: #000; }
.btn-success:hover { filter: brightness(1.1); }
.btn-danger { background: var(--danger); border-color: var(--danger); }
.btn-danger:hover { filter: brightness(1.1); }
.btn-outline {
    background: transparent; border: 2px solid var(--border);
    color: var(--text-secondary); box-shadow: var(--shadow-sm);
}
.btn-outline:hover {
    border-color: var(--text-muted); color: var(--text);
}
.btn-sm { padding: 6px 12px; font-size: 0.74rem; }
.btn-google {
    background: #fff; color: #1a1a1a; border: 2px solid var(--border-heavy);
    font-size: 0.85rem; font-weight: 700;
    padding: 12px 24px; border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-transform: none;
}
.btn-google:hover { background: #f5f5f4; border-color: var(--text); }
.btn-google svg { flex-shrink: 0; }

/* ── Forms ── */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block; font-size: 0.76rem; font-weight: 700;
    margin-bottom: 6px; color: var(--text-secondary);
    text-transform: uppercase; letter-spacing: 0.3px;
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%; padding: 10px 14px;
    background: var(--bg); border: 2px solid var(--border);
    border-radius: var(--radius); color: var(--text);
    font-size: 0.875rem; font-family: inherit;
    transition: border-color var(--transition);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none; border-color: var(--primary);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); opacity: 0.6; }
.form-group textarea { resize: vertical; min-height: 80px; }
.form-group .hint { font-size: 0.76rem; color: var(--text-muted); margin-top: 4px; }

/* ── Score slider ── */
.score-input { display: flex; align-items: center; gap: 10px; }
.score-input input[type="range"] {
    flex: 1; -webkit-appearance: none; appearance: none;
    height: 6px; border-radius: 0;
    background: var(--border); outline: none;
}
.score-input input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none; width: 20px; height: 20px;
    border-radius: 0; background: var(--primary);
    cursor: pointer; border: 2px solid var(--border);
}
.score-input input[type="range"]::-moz-range-thumb {
    width: 20px; height: 20px; border: 2px solid var(--border);
    border-radius: 0; background: var(--primary); cursor: pointer;
}
.score-input .score-value {
    font-size: 1.1rem; font-weight: 700;
    color: var(--primary); min-width: 36px; text-align: center;
}

/* ── Badges ── */
.badge {
    display: inline-flex; align-items: center;
    padding: 3px 10px; border-radius: var(--radius);
    font-size: 0.66rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.6px;
    border: 2px solid;
}
.badge-pending { background: #fef9c3; color: #854d0e; border-color: var(--warning); }
.badge-passed { background: #dcfce7; color: #166534; border-color: var(--success); }
.badge-failed { background: #fee2e2; color: #991b1b; border-color: var(--danger); }
.badge-reviewed { background: #dbeafe; color: #1e40af; border-color: var(--primary); }

/* ── Score Gauge ── */
.score-gauge {
    width: 100px; height: 100px; border-radius: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.6rem; font-weight: 700;
    margin: 0 auto 14px; letter-spacing: -0.03em;
}
.score-high { background: #dcfce7; color: #166534; border: 3px solid var(--success); }
.score-mid { background: #fef9c3; color: #854d0e; border: 3px solid var(--warning); }
.score-low { background: #fee2e2; color: #991b1b; border: 3px solid var(--danger); }

/* ── Table ── */
.table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; }
th, td {
    padding: 10px 14px; text-align: left;
    border-bottom: 1px solid var(--border); font-size: 0.8rem;
}
th {
    color: var(--text-muted); font-weight: 700;
    font-size: 0.68rem; text-transform: uppercase;
    letter-spacing: 0.6px; background: var(--bg-surface);
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}
tr { transition: background var(--transition); }
tr:hover td { background: rgba(0,0,0,0.02); }
tr:last-child td { border-bottom: none; }

/* ── Score bars ── */
.score-bar-bg {
    background: var(--bg); border-radius: 0;
    height: 6px; overflow: hidden; margin-top: 6px;
    border: 1px solid var(--border);
}
.score-bar {
    height: 100%; border-radius: 0;
    transition: width 0.5s ease;
}
.score-bar.high { background: var(--success); }
.score-bar.mid { background: var(--warning); }
.score-bar.low { background: var(--danger); }

/* ── Alerts ── */
.alert {
    padding: 10px 16px; border-radius: var(--radius);
    font-size: 0.84rem; margin-bottom: 14px; font-weight: 600;
    border: 2px solid;
}
.alert-success { background: #dcfce7; color: #166534; border-color: var(--success); }
.alert-error { background: #fee2e2; color: #991b1b; border-color: var(--danger); }

/* ── Section headers ── */
.section-title {
    font-size: 1rem; font-weight: 700;
    letter-spacing: -0.01em; color: var(--text);
    text-transform: uppercase;
}

/* ── Cert & Profile Banners ── */
.cert-banner {
    margin-bottom: 14px; padding: 10px 16px;
    border-radius: var(--radius); font-size: 0.8rem;
    color: var(--text-secondary);
    background: #dbeafe;
    border: 2px solid var(--primary);
    box-shadow: var(--shadow-sm);
}
.cert-banner strong { color: var(--text); }
.cert-banner a { color: var(--primary); font-weight: 700; }

.profile-banner {
    margin-bottom: 20px;
    border: 2px solid var(--primary);
    border-left: 4px solid var(--primary);
    box-shadow: var(--shadow);
}

/* ── Empty state ── */
.empty-state {
    text-align: center; padding: 40px 20px; color: var(--text-muted);
}
.empty-state .icon { font-size: 1.8rem; margin-bottom: 10px; opacity: 0.3; }
.empty-state p { font-size: 0.84rem; }

/* ── Utilities ── */
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-center { text-align: center; }
.mt-1 { margin-top: 6px; }
.mt-2 { margin-top: 12px; }
.mt-3 { margin-top: 18px; }
.mb-2 { margin-bottom: 12px; }
.mb-3 { margin-bottom: 18px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: 10px; }
.hidden { display: none; }

/* ── Animations ── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.2s ease-out forwards; }
.delay-1 { animation-delay: 0.03s; opacity: 0; }
.delay-2 { animation-delay: 0.06s; opacity: 0; }
.delay-3 { animation-delay: 0.09s; opacity: 0; }
.delay-4 { animation-delay: 0.12s; opacity: 0; }
.delay-5 { animation-delay: 0.15s; opacity: 0; }

/* ══════════════════════════════════════════════
   RESPONSIVE — 4 breakpoints
   ══════════════════════════════════════════════ */

/* ── Tablet landscape & small desktop (<=1024px) ── */
@media (max-width: 1024px) {
    .container { max-width: 960px; padding: 0 20px; }
    .card-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
    .stats-row { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
}

/* ── Tablet portrait (<=768px) ── */
@media (max-width: 768px) {
    .container { padding: 0 16px; }

    /* Hamburger visible */
    .nav-hamburger { display: flex; align-items: center; justify-content: center; }

    /* Nav menu hidden by default on mobile */
    .navbar .user-info {
        display: none;
        position: absolute; top: 100%; left: 0; right: 0;
        background: var(--bg-surface);
        border-bottom: 2px solid var(--border);
        flex-direction: column; align-items: stretch;
        padding: 12px 20px; gap: 4px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.08);
        z-index: 99;
    }
    .navbar.nav-open .user-info { display: flex; }
    .navbar .container { position: relative; }

    /* Nav links stack vertically */
    .nav-link {
        display: block; padding: 10px 8px; font-size: 0.84rem;
        border-bottom: 1px solid var(--border);
    }
    .nav-link:last-child { border-bottom: none; }

    /* Dropdown opens full-width on mobile */
    .nav-dropdown { display: block; }
    .nav-dropdown-trigger {
        display: flex; width: 100%;
        padding: 10px 8px; font-size: 0.84rem;
        border-bottom: 1px solid var(--border);
    }
    .nav-dropdown-menu {
        position: static; border: none; box-shadow: none;
        padding: 4px 0 8px 12px; background: var(--bg);
        border-radius: 0;
    }
    .nav-dropdown.open .nav-dropdown-menu {
        display: flex; flex-direction: column; gap: 0;
    }
    .nav-dropdown-menu .dd-col { min-width: unset; width: 100%; }
    .nav-dropdown-menu a { padding: 8px 12px; font-size: 0.78rem; }

    /* User info items */
    .navbar .user-info .user-name {
        padding: 8px; font-size: 0.84rem;
        border-top: 1px solid var(--border);
    }
    .navbar .user-info .theme-toggle {
        align-self: flex-start; margin: 4px 8px;
    }
    .navbar .user-info > a[href="/auth/logout"] {
        display: block; padding: 10px 8px; font-size: 0.84rem;
        border-top: 1px solid var(--border);
        color: var(--danger); font-weight: 600;
    }
    .navbar .user-info img {
        width: 32px; height: 32px; margin: 4px 8px;
    }

    /* Page layout */
    .page { padding: 20px 0 36px; }
    .page-header h1 { font-size: 1.3rem; }
    .page-header p { font-size: 0.82rem; }

    /* Cards */
    .card { padding: 16px; }
    .card-grid { grid-template-columns: 1fr; gap: 12px; }

    /* Stats 2 columns */
    .stats-row { grid-template-columns: repeat(2, 1fr); gap: 8px; }

    /* Tables */
    th, td { padding: 8px 10px; font-size: 0.76rem; }

    /* Flex wrappers stack */
    .flex-between { flex-wrap: wrap; gap: 10px; }

    /* Forms grid stacks */
    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: 12px 14px; font-size: 0.9rem;
    }

    /* Profile form grid stacks on mobile */
    .profile-form-grid { grid-template-columns: 1fr !important; }
}

/* ── Phone (<=480px) ── */
@media (max-width: 480px) {
    .container { padding: 0 12px; }

    body { font-size: 0.85rem; }

    .page-header h1 { font-size: 1.15rem; }

    /* Full-width buttons on mobile */
    .btn { padding: 10px 16px; font-size: 0.78rem; width: 100%; justify-content: center; }
    .btn-sm { padding: 8px 14px; width: auto; }

    /* Cards tighter */
    .card { padding: 14px; }
    .card h3 { font-size: 0.9rem; }
    .card p { font-size: 0.82rem; }

    /* Stats single column on tiny screens */
    .stats-row { grid-template-columns: 1fr; }
    .stat-card { padding: 14px 10px; }
    .stat-card .value { font-size: 1.3rem; }

    /* Score gauge smaller */
    .score-gauge { width: 80px; height: 80px; font-size: 1.3rem; }

    /* Table font */
    th, td { padding: 6px 8px; font-size: 0.72rem; }
    th { font-size: 0.62rem; }

    /* Badges */
    .badge { font-size: 0.6rem; padding: 2px 8px; }

    /* Profile form stacks */
    .profile-banner form [style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
    }

    /* Alert */
    .alert { font-size: 0.8rem; padding: 10px 12px; }
}

/* ── Tiny phone (<=360px) ── */
@media (max-width: 360px) {
    .container { padding: 0 8px; }
    .navbar { padding: 8px 0; }
    .navbar .brand { font-size: 0.85rem; }
    .page-header h1 { font-size: 1.05rem; }
    .btn { font-size: 0.74rem; padding: 10px 12px; }
}