/* ═══════════════════════════════════════════════════════════
   EhliyetSınavı.com — Ana CSS
   ═══════════════════════════════════════════════════════════ */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #d97706;
    --dark: #0f172a;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-500: #64748b;
    --gray-700: #334155;
    --radius-sm: .5rem;
    --radius: 1rem;
    --radius-lg: 1.5rem;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
    --shadow: 0 4px 20px rgba(0,0,0,.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,.15);
    --transition: all .25s ease;
}

/* ─── Base ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--gray-700);
    background: #fff;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 { color: var(--dark); font-weight: 700; }

a { transition: var(--transition); }

/* ─── Navbar ────────────────────────────────────────────── */
#mainNav {
    background: linear-gradient(135deg, var(--dark) 0%, #1e3a5f 100%);
    padding: .75rem 0;
    box-shadow: 0 2px 20px rgba(0,0,0,.2);
    z-index: 1030;
}

#mainNav .navbar-brand {
    font-size: 1.3rem;
    letter-spacing: -.02em;
}

#mainNav .nav-link {
    color: rgba(255,255,255,.85) !important;
    font-weight: 500;
    font-size: .9rem;
    padding: .5rem .75rem !important;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

#mainNav .nav-link:hover {
    color: #fff !important;
    background: rgba(255,255,255,.1);
}

#mainNav .dropdown-menu {
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: .5rem;
    margin-top: .5rem;
}

#mainNav .dropdown-item {
    border-radius: var(--radius-sm);
    padding: .5rem .75rem;
    font-size: .9rem;
    transition: var(--transition);
}

#mainNav .dropdown-item:hover { background: var(--gray-100); }

/* ─── Hero ──────────────────────────────────────────────── */
.hero-section {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #1d4ed8 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37,99,235,.3) 0%, transparent 70%);
    pointer-events: none;
}

.min-vh-80 { min-height: 80vh; }

.text-white-75 { color: rgba(255,255,255,.75); }

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    line-height: 0;
}

.hero-wave svg { width: 100%; height: 80px; }

.hero-card-stack {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.hero-stat-card {
    background: rgba(255,255,255,.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,.2);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    min-width: 120px;
    transition: var(--transition);
}

.hero-stat-card:hover { transform: translateY(-4px); background: rgba(255,255,255,.15); }
.hero-stat-card--2 { margin-top: 2rem; }
.hero-stat-card--3 { margin-top: -1rem; }

/* ─── Category Cards ─────────────────────────────────────── */
.category-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.category-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.category-card__icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

/* ─── Sign Mini Cards ────────────────────────────────────── */
.sign-mini-card {
    display: flex;
    align-items: center;
    background: #fff;
    border-radius: var(--radius);
    padding: 1rem;
    border-left: 4px solid;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.sign-mini-card:hover { transform: translateX(4px); box-shadow: var(--shadow); }

/* ─── Feature Cards ──────────────────────────────────────── */
.feature-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    height: 100%;
}

.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

.feature-card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

/* ─── CTA Section ────────────────────────────────────────── */
.cta-section {
    background: linear-gradient(135deg, #1d4ed8 0%, #7c3aed 100%);
    position: relative;
    overflow: hidden;
}

/* ─── Quiz Wrapper ───────────────────────────────────────── */
.quiz-wrapper {
    background: var(--gray-50);
    min-height: 100vh;
}

.quiz-header {
    background: linear-gradient(135deg, var(--dark) 0%, #1e3a5f 100%);
    padding: .75rem 0 .5rem;
    z-index: 100;
}

.quiz-timer {
    background: rgba(255,255,255,.15);
    color: #fff;
    padding: .35rem .75rem;
    border-radius: 2rem;
    font-weight: 700;
    font-size: 1rem;
    font-variant-numeric: tabular-nums;
    letter-spacing: .05em;
    transition: var(--transition);
}

.quiz-timer.timer-warning { background: rgba(245,158,11,.3); color: #fbbf24; }
.quiz-timer.timer-danger { background: rgba(220,38,38,.4); color: #fca5a5; animation: pulse 1s infinite; }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .7; }
}

/* ─── Question Nav Grid ──────────────────────────────────── */
.question-nav-grid {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    background: #fff;
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
}

.q-nav-btn {
    width: 36px;
    height: 36px;
    border-radius: .4rem;
    border: 1.5px solid var(--gray-200);
    background: #fff;
    font-size: .8rem;
    font-weight: 600;
    color: var(--gray-700);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.q-nav-btn:hover { border-color: var(--primary); color: var(--primary); }
.q-nav-btn--answered { background: var(--primary); border-color: var(--primary); color: #fff; }
.q-nav-btn--current { border-color: var(--warning); box-shadow: 0 0 0 2px rgba(217,119,6,.3); }

/* ─── Question Card ──────────────────────────────────────── */
.quiz-question-card {
    display: none;
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
    animation: fadeInUp .3s ease;
}

.quiz-question-card.active { display: block; }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.quiz-question-text {
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.7;
    color: var(--dark);
    margin: 1rem 0 1.5rem;
}

.quiz-question-img {
    max-height: 250px;
    object-fit: contain;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
}

/* ─── Answer Options ─────────────────────────────────────── */
.quiz-answers { display: flex; flex-direction: column; gap: .75rem; }

.quiz-answer-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: .9rem 1.25rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.quiz-answer-option:hover {
    border-color: var(--primary);
    background: #eff6ff;
    transform: translateX(4px);
}

.quiz-answer-option:has(.quiz-radio:checked) {
    border-color: var(--primary);
    background: #dbeafe;
    box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}

.quiz-radio { position: absolute; opacity: 0; width: 0; height: 0; }

.quiz-answer-letter {
    width: 36px;
    height: 36px;
    background: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: .9rem;
    flex-shrink: 0;
    transition: var(--transition);
}

.quiz-answer-option:has(.quiz-radio:checked) .quiz-answer-letter {
    background: var(--primary);
    color: #fff;
}

.quiz-answer-text { font-size: .95rem; font-weight: 500; color: var(--gray-700); }

/* ─── Result ─────────────────────────────────────────────── */
.score-circle {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 8px solid;
}

.score-circle--success { border-color: #16a34a; }
.score-circle--warning { border-color: #d97706; }
.score-circle--danger { border-color: #dc2626; }

.score-number { font-size: 2.5rem; font-weight: 800; line-height: 1; }
.score-label { font-size: .85rem; color: var(--gray-500); font-weight: 600; }

.answer-detail {
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: .75rem;
    border-left: 4px solid;
}

.answer-detail--correct { background: #f0fdf4; border-color: #16a34a; }
.answer-detail--wrong { background: #fef2f2; border-color: #dc2626; }
.answer-detail--empty { background: #f8fafc; border-color: #94a3b8; }

/* ─── Dashboard ──────────────────────────────────────────── */
.stat-card {
    background: linear-gradient(135deg, var(--card-from), var(--card-to));
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    color: #fff;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

/* ─── Admin ──────────────────────────────────────────────── */
.admin-sidebar {
    background: var(--dark);
    min-height: 100vh;
    width: 260px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 200;
    padding-top: 5rem;
    transition: var(--transition);
}

.admin-sidebar .nav-link {
    color: rgba(255,255,255,.7);
    padding: .65rem 1.5rem;
    border-radius: 0 var(--radius) var(--radius) 0;
    margin-right: 1rem;
    font-size: .9rem;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: .75rem;
}

.admin-sidebar .nav-link:hover,
.admin-sidebar .nav-link.active {
    color: #fff;
    background: rgba(37,99,235,.3);
    border-right: 3px solid var(--primary);
}

.admin-content {
    margin-left: 260px;
    padding: 2rem;
    min-height: 100vh;
    background: var(--gray-50);
}

.admin-stat-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: 1.25rem;
    transition: var(--transition);
}

.admin-stat-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }

.admin-stat-card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

/* ─── Traffic Signs ──────────────────────────────────────── */
.sign-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.sign-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary); }

.sign-card img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: .75rem;
}

.sign-card__code {
    display: inline-block;
    background: var(--gray-100);
    color: var(--gray-500);
    font-size: .75rem;
    font-weight: 700;
    padding: .2rem .6rem;
    border-radius: 2rem;
    margin-bottom: .5rem;
}

/* ─── Forms ──────────────────────────────────────────────── */
.form-control, .form-select {
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--gray-200);
    padding: .65rem 1rem;
    font-size: .95rem;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}

/* ─── Auth Pages ─────────────────────────────────────────── */
.auth-wrapper {
    min-height: 100vh;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
    display: flex;
    align-items: center;
}

.auth-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 460px;
    margin: 0 auto;
}

/* ─── Tables ─────────────────────────────────────────────── */
.table {
    border-collapse: separate;
    border-spacing: 0;
}

.table th {
    background: var(--gray-50);
    font-weight: 600;
    font-size: .85rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--gray-500);
    border-bottom: 2px solid var(--gray-200);
    padding: .75rem 1rem;
}

.table td {
    padding: .75rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--gray-100);
}

.table tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: var(--gray-50); }

/* ─── Badges ─────────────────────────────────────────────── */
.badge { font-weight: 600; }

/* ─── Buttons ────────────────────────────────────────────── */
.btn {
    font-weight: 600;
    transition: var(--transition);
    border-radius: var(--radius-sm);
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }

/* ─── Cards ──────────────────────────────────────────────── */
.card { border-radius: var(--radius); border: 1px solid var(--gray-200); }
.card-header { border-radius: var(--radius) var(--radius) 0 0 !important; }

/* ─── Utilities ──────────────────────────────────────────── */
.hover-white:hover { color: #fff !important; }

.bg-primary-subtle { background-color: #dbeafe !important; }
.bg-danger-subtle { background-color: #fee2e2 !important; }
.bg-success-subtle { background-color: #dcfce7 !important; }
.bg-warning-subtle { background-color: #fef3c7 !important; }
.bg-secondary-subtle { background-color: #f1f5f9 !important; }

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 768px) {
    .admin-sidebar { transform: translateX(-100%); }
    .admin-content { margin-left: 0; }
    .hero-section { padding-top: 2rem; }
    .quiz-question-card { padding: 1.25rem; }
    .auth-card { padding: 1.5rem; margin: 1rem; }
    .question-nav-grid { gap: .3rem; }
    .q-nav-btn { width: 32px; height: 32px; font-size: .75rem; }
}

@media (max-width: 576px) {
    .hero-stat-card { min-width: 90px; padding: 1.25rem 1rem; }
    .score-circle { width: 110px; height: 110px; }
    .score-number { font-size: 2rem; }
}

/* ─── Scrollbar ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--gray-200); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-500); }

/* ─── Animations ─────────────────────────────────────────── */
.fade-in { animation: fadeIn .4s ease; }

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ─── Print ──────────────────────────────────────────────── */
@media print {
    #mainNav, footer, .btn, .quiz-header { display: none !important; }
    .admin-sidebar { display: none !important; }
    .admin-content { margin-left: 0 !important; }
}