/* =========================================
   CSS DEĞİŞKENLERİ
   ========================================= */
:root {
    --bg-deep: #110a05;
    --bg-base: #1c0f08;
    --bg-card: #f5ead8;
    --bg-card-alt: #ede0c4;
    --gold: #c9a84c;
    --gold-light: #e8c97a;
    --gold-dim: #7a6030;
    --cream: #f0e4cc;
    --ink: #2a1a0e;
    --ink-light: #5c3d28;
    --red-dark: #7c0a02;
    --red: #a01515;
    --green: #1a6b35;
    --border: rgba(201,168,76,0.3);
    --border-strong: rgba(201,168,76,0.6);
    --shadow: 0 8px 30px rgba(0,0,0,0.6);
    --radius: 14px;
    --radius-sm: 8px;
    --transition: all 0.2s cubic-bezier(0.4,0,0.2,1);
}

/* =========================================
   TEMEL AYARLAR
   ========================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    height: 100%;
    font-family: 'Crimson Pro', Georgia, serif;
    background-color: var(--bg-deep);
    color: var(--cream);
    overflow-x: hidden;
}

body {
    background-image:
        url('https://www.transparenttextures.com/patterns/aged-paper.png'),
        radial-gradient(ellipse at 20% 0%, #2e1505 0%, transparent 60%),
        radial-gradient(ellipse at 80% 100%, #1a0a00 0%, transparent 60%),
        linear-gradient(160deg, #1c0f08 0%, #110a05 100%);
    background-blend-mode: overlay, normal, normal, normal;
    background-attachment: fixed;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-y: auto;
}

/* =========================================
   EKRANLAR
   ========================================= */
.screen {
    width: 100%;
    max-width: 640px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 28px 18px 60px;
    animation: screenIn 0.4s ease-out;
}

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

/* =========================================
   LOGO & BAŞLIK
   ========================================= */
.site-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 8px;
    margin-top: 12px;
}

.logo-mark {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold-dim), var(--gold));
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Cinzel', serif;
    font-size: 1.6em;
    font-weight: 700;
    color: var(--bg-deep);
    box-shadow: 0 4px 16px rgba(201,168,76,0.3), inset 0 1px 0 rgba(255,255,255,0.2);
    flex-shrink: 0;
}

.main-title {
    font-family: 'Cinzel', serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--gold);
    text-shadow: 0 0 20px rgba(201,168,76,0.3);
    letter-spacing: 0.02em;
    line-height: 1.1;
}

.site-tagline {
    font-family: 'Crimson Pro', serif;
    font-style: italic;
    color: var(--gold-dim);
    font-size: 0.95em;
    margin-top: 2px;
}

.subtitle {
    font-family: 'Crimson Pro', serif;
    font-style: italic;
    color: rgba(240,228,204,0.6);
    font-size: 1.05em;
    margin-bottom: 24px;
    text-align: center;
}

/* =========================================
   KATEGORİ GRID
   ========================================= */
.category-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    width: 100%;
    margin-bottom: 20px;
}

.cat-btn {
    position: relative;
    background: linear-gradient(145deg, rgba(40,22,10,0.95), rgba(55,32,15,0.98));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 12px 14px;
    color: var(--cream);
    font-family: 'Cinzel', serif;
    font-size: 0.82em;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 90px;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.04);
    text-align: center;
    overflow: hidden;
}

.cat-btn::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border-radius: var(--radius);
    background: linear-gradient(135deg, rgba(201,168,76,0.06), transparent);
    opacity: 0;
    transition: opacity 0.2s;
}

.cat-btn:hover {
    border-color: var(--border-strong);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.5), 0 0 0 1px rgba(201,168,76,0.2);
}
.cat-btn:hover::before { opacity: 1; }
.cat-btn:active { transform: translateY(0) scale(0.98); }

.cat-icon { font-size: 1.5em; }
.cat-icon.roman {
    font-family: 'Cinzel', serif;
    font-size: 1.1em;
    color: var(--gold);
    letter-spacing: 0.05em;
}
.cat-label { font-weight: 600; line-height: 1.2; }
.cat-sub { font-size: 0.78em; color: rgba(240,228,204,0.5); font-family: 'Crimson Pro', serif; font-style: italic; }

.cat-count {
    position: absolute;
    top: 8px; right: 10px;
    font-size: 0.7em;
    font-family: 'Crimson Pro', serif;
    color: var(--gold-dim);
    font-style: italic;
}

.full-width { grid-column: 1 / -1; }

/* Özel Butonlar */
.gold-btn {
    background: linear-gradient(145deg, #8a6010, #b8881a) !important;
    border-color: var(--gold) !important;
    color: var(--bg-deep) !important;
    font-weight: 700;
}
.gold-btn .cat-label { color: var(--bg-deep); }

.quiz-mode-btn {
    background: linear-gradient(145deg, #4a0a0a, #6e1010) !important;
    border-color: rgba(180, 60, 60, 0.5) !important;
}

/* =========================================
   STATS BAR (Ana menü altta)
   ========================================= */
.stats-bar {
    display: flex;
    align-items: center;
    gap: 0;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 10px 24px;
    margin-top: 8px;
}
.stat-item { text-align: center; padding: 0 16px; }
.stat-num { display: block; font-family: 'Cinzel', serif; font-size: 1.3em; color: var(--gold); font-weight: 700; }
.stat-label { font-size: 0.7em; color: rgba(240,228,204,0.5); font-family: 'Crimson Pro', serif; text-transform: uppercase; letter-spacing: 0.08em; }
.stat-divider { width: 1px; height: 32px; background: var(--border); }

/* =========================================
   BUTONLAR (GERİ, VS.)
   ========================================= */
.back-btn {
    align-self: flex-start;
    background: transparent;
    border: 1px solid var(--border);
    color: rgba(240,228,204,0.6);
    padding: 7px 16px;
    border-radius: 50px;
    cursor: pointer;
    font-family: 'Cinzel', serif;
    font-size: 0.78em;
    margin-bottom: 20px;
    transition: var(--transition);
}
.back-btn:hover { border-color: var(--gold); color: var(--gold); }

/* =========================================
   OYUN EKRANI ÜST BAR
   ========================================= */
.game-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    margin-bottom: 0;
    gap: 10px;
}
.game-topbar .back-btn { margin-bottom: 0; flex-shrink: 0; }

.topic-title-sm {
    font-family: 'Cinzel', serif;
    font-size: 0.85em;
    color: var(--gold);
    text-align: center;
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.session-stats {
    display: flex;
    gap: 8px;
    font-size: 0.85em;
    flex-shrink: 0;
}
.sess-known, .sess-unknown {
    font-family: 'Cinzel', serif;
    font-size: 0.82em;
    padding: 4px 8px;
    border-radius: 20px;
    background: rgba(0,0,0,0.3);
}

/* =========================================
   İLERLEME ÇUBUĞU
   ========================================= */
.progress-wrap {
    width: 100%;
    height: 4px;
    background: rgba(255,255,255,0.06);
    border-radius: 2px;
    margin-top: 14px;
    overflow: hidden;
}
.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--gold-dim), var(--gold));
    border-radius: 2px;
    transition: width 0.5s cubic-bezier(0.4,0,0.2,1);
}
.quiz-progress-bar {
    background: linear-gradient(90deg, #6e1010, #c0392b);
}
.progress-label, .quiz-progress-label {
    width: 100%;
    text-align: right;
    font-size: 0.72em;
    color: rgba(240,228,204,0.4);
    font-family: 'Cinzel', serif;
    margin-top: 4px;
    margin-bottom: 16px;
}
.quiz-progress-label { text-align: center; }

/* =========================================
   FLASHCARD
   ========================================= */
.card-area {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-bottom: 16px;
    perspective: 1000px;
}

.flashcard {
    width: 100%;
    max-width: 520px;
    min-height: 220px;
    background-color: var(--bg-card);
    background-image: url('https://www.transparenttextures.com/patterns/cream-paper.png');
    border-radius: var(--radius);
    box-shadow: var(--shadow), 0 1px 0 rgba(255,255,255,0.1) inset;
    border: 1px solid rgba(0,0,0,0.1);
    overflow: hidden;
    transition: box-shadow 0.3s;
}

.card-front, .card-back {
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    min-height: 220px;
    justify-content: center;
}

.card-label {
    font-family: 'Cinzel', serif;
    font-size: 0.68em;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: rgba(80,50,30,0.5);
    border-bottom: 1px solid rgba(0,0,0,0.08);
    padding-bottom: 8px;
    width: 100%;
    text-align: center;
}

.card-question {
    font-family: 'Crimson Pro', serif;
    font-size: 1.25em;
    font-weight: 400;
    color: var(--ink);
    text-align: center;
    line-height: 1.5;
    max-width: 420px;
}

.card-answer {
    font-family: 'Cinzel', serif;
    font-size: 1.35em;
    font-weight: 700;
    color: var(--red-dark);
    text-align: center;
    line-height: 1.3;
}

.reveal-btn {
    font-family: 'Cinzel', serif;
    font-size: 0.8em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ink-light);
    background: transparent;
    border: 1.5px solid rgba(80,50,30,0.3);
    padding: 10px 28px;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}
.reveal-btn:hover { border-color: var(--ink-light); background: rgba(0,0,0,0.05); }
.reveal-btn:active { transform: scale(0.97); }

.key-hint {
    font-size: 0.75em;
    opacity: 0.4;
    font-family: monospace;
}

/* Doğru/Yanlış butonları */
.verdict-btns {
    display: flex;
    gap: 10px;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
}
.verdict-btn {
    flex: 1;
    min-width: 120px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: none;
    font-family: 'Cinzel', serif;
    font-size: 0.82em;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.known-btn {
    background: linear-gradient(135deg, #1a5c2a, #217a38);
    color: #d4edda;
    box-shadow: 0 4px 12px rgba(26,90,40,0.3);
}
.unknown-btn {
    background: linear-gradient(135deg, #6e1010, #8a1818);
    color: #ffd9d9;
    box-shadow: 0 4px 12px rgba(110,16,16,0.3);
}
.verdict-btn:hover { transform: translateY(-1px); filter: brightness(1.1); }
.verdict-btn:active { transform: scale(0.97); }

.counter {
    text-align: center;
    color: rgba(240,228,204,0.5);
    font-family: 'Cinzel', serif;
    font-size: 0.82em;
}
.counter strong { color: var(--gold); }

/* =========================================
   QUIZ MODU
   ========================================= */
.question-container {
    width: 100%;
    background-color: var(--bg-card);
    background-image: url('https://www.transparenttextures.com/patterns/cream-paper.png');
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px 24px;
    text-align: center;
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
}

#quiz-question {
    font-family: 'Crimson Pro', serif;
    font-size: 1.2em;
    font-weight: 400;
    color: var(--ink);
    line-height: 1.5;
    margin: 0;
}

.options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    width: 100%;
}

.quiz-opt-btn {
    background: linear-gradient(145deg, rgba(40,22,10,0.95), rgba(55,32,15,0.98));
    color: var(--cream);
    border: 1px solid var(--border);
    padding: 14px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: 'Cinzel', serif;
    font-size: 0.82em;
    font-weight: 600;
    min-height: 60px;
    transition: var(--transition);
    text-align: center;
    line-height: 1.3;
    position: relative;
}
.quiz-opt-btn:not(:disabled):hover {
    border-color: var(--border-strong);
    transform: translateY(-1px);
    background: linear-gradient(145deg, rgba(55,32,15,0.98), rgba(70,42,20,0.98));
}
.quiz-opt-btn.correct {
    background: linear-gradient(135deg, #1a5c2a, #217a38) !important;
    border-color: #4caf6a !important;
    color: #d4edda !important;
}
.quiz-opt-btn.wrong {
    background: linear-gradient(135deg, #6e1010, #8a1818) !important;
    border-color: #e05252 !important;
    color: #ffd9d9 !important;
    opacity: 0.8;
}
.quiz-opt-btn .key-badge {
    position: absolute;
    top: 6px; left: 8px;
    font-size: 0.65em;
    opacity: 0.3;
    font-family: monospace;
}

.score-board {
    font-family: 'Cinzel', serif;
    font-weight: 700;
    font-size: 0.95em;
    color: var(--gold);
    background: rgba(0,0,0,0.4);
    border: 1px solid var(--border);
    padding: 5px 14px;
    border-radius: 50px;
}

#quiz-feedback {
    margin-top: 12px;
    font-size: 1.1em;
    font-weight: 700;
    font-family: 'Cinzel', serif;
    min-height: 28px;
    text-align: center;
    color: var(--cream);
}

/* =========================================
   SONUÇ EKRANI
   ========================================= */
.result-card {
    background-color: var(--bg-card);
    background-image: url('https://www.transparenttextures.com/patterns/cream-paper.png');
    border-radius: 20px;
    box-shadow: var(--shadow);
    padding: 40px 32px;
    text-align: center;
    width: 100%;
    max-width: 480px;
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    animation: screenIn 0.5s ease-out;
}
.result-trophy { font-size: 3.5em; }
.result-title {
    font-family: 'Cinzel', serif;
    font-size: 1.5em;
    color: var(--ink);
    font-weight: 700;
}
.result-score-big {
    font-family: 'Cinzel', serif;
    font-size: 3em;
    font-weight: 700;
    color: var(--red-dark);
    display: flex;
    align-items: baseline;
    gap: 4px;
}
.result-slash { font-size: 0.7em; color: var(--ink-light); }
.result-message { font-family: 'Crimson Pro', serif; font-size: 1.1em; color: var(--ink-light); font-style: italic; }
.result-stats {
    display: flex;
    gap: 0;
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: var(--radius-sm);
    overflow: hidden;
    width: 100%;
}
.result-stat {
    flex: 1;
    padding: 14px 8px;
    text-align: center;
    border-right: 1px solid rgba(0,0,0,0.1);
}
.result-stat:last-child { border-right: none; }
.result-stat-num {
    display: block;
    font-family: 'Cinzel', serif;
    font-size: 1.5em;
    font-weight: 700;
    color: var(--green);
}
.result-stat-num.wrong { color: var(--red); }
.result-stat-num.pct { color: var(--ink); }
.result-stat-label { font-size: 0.72em; color: var(--ink-light); font-family: 'Crimson Pro', serif; text-transform: uppercase; letter-spacing: 0.05em; }
.result-actions { display: flex; gap: 10px; width: 100%; flex-wrap: wrap; }
.result-btn {
    flex: 1;
    padding: 14px;
    border-radius: var(--radius-sm);
    font-family: 'Cinzel', serif;
    font-size: 0.85em;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}
.result-btn.primary { background: linear-gradient(135deg, #6e1010, #8a1818); color: #ffd9d9; }
.result-btn.secondary { background: linear-gradient(135deg, #2a1a0e, #3c2810); color: var(--cream); border: 1px solid var(--border); }
.result-btn:hover { filter: brightness(1.15); transform: translateY(-1px); }

/* =========================================
   ANİMASYONLAR
   ========================================= */
@keyframes flipIn {
    from { transform: rotateX(-30deg); opacity: 0; }
    to { transform: rotateX(0); opacity: 1; }
}
.flashcard .card-back { animation: flipIn 0.3s ease-out; }

/* =========================================
   MOBİL
   ========================================= */
@media (max-width: 480px) {
    .screen { padding: 16px 12px 50px; }
    .main-title { font-size: 1.5rem; }
    .logo-mark { width: 42px; height: 42px; font-size: 1.3em; }
    .category-grid { gap: 8px; }
    .cat-btn { min-height: 76px; padding: 14px 8px 10px; font-size: 0.75em; }
    .cat-icon { font-size: 1.3em; }
    .stats-bar { padding: 8px 14px; }
    .stat-item { padding: 0 10px; }
    .card-question { font-size: 1.1em; }
    .card-answer { font-size: 1.15em; }
    .options-grid { grid-template-columns: 1fr; }
    .result-card { padding: 28px 20px; }
    .result-score-big { font-size: 2.5em; }
    .verdict-btns { flex-direction: column; }
    .verdict-btn { min-width: unset; }
}