/* quiz/css/style.css */
:root {
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --success: #22c55e;
    --error: #ef4444;
    --border-color: #e2e8f0;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

body.quiz-body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

/* Auth Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.auth-card {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    width: 100%;
    max-width: 450px;
}

.auth-title { text-align: center; margin-bottom: 0.5rem; color: var(--primary-color); }
.auth-subtitle { text-align: center; margin-bottom: 2rem; color: var(--text-muted); }

.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; }
.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-sizing: border-box;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s;
}

.btn-primary { background-color: var(--primary-color); color: #fff; }
.btn-primary:hover:not(:disabled) { background-color: var(--primary-hover); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-outline { background-color: transparent; border-color: var(--primary-color); color: var(--primary-color); }
.btn-outline:hover { background-color: var(--primary-color); color: #fff; }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.875rem; }

.w-100 { width: 100%; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.text-center { text-align: center; }

.hidden { display: none !important; }

.auth-toggle { text-align: center; margin-top: 1.5rem; font-size: 0.9rem; }
.auth-toggle a { color: var(--primary-color); text-decoration: none; font-weight: 600; }
.auth-error { color: var(--error); text-align: center; margin-top: 1rem; font-size: 0.9rem; }

/* Dashboard */
.quiz-nav {
    background: var(--card-bg);
    box-shadow: var(--card-shadow);
    padding: 1rem 0;
}
.container { max-width: 1000px; margin: 0 auto; padding: 0 2rem; }
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.25rem; font-weight: 700; color: var(--primary-color); }

.quiz-main { padding: 4rem 0; }
.selection-box { background: var(--card-bg); padding: 3rem; border-radius: 12px; box-shadow: var(--card-shadow); }

.lang-grid, .level-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
}

.lang-card, .level-card {
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1rem;
    font-weight: 500;
}

.lang-card i { display: block; font-size: 2rem; margin-bottom: 0.5rem; color: var(--text-muted); }
.lang-card.selected, .level-card.selected { border-color: var(--primary-color); background: rgba(37, 99, 235, 0.05); }
.lang-card.selected i { color: var(--primary-color); }

/* Quiz Interface */
.quiz-card { background: var(--card-bg); padding: 3rem; border-radius: 12px; box-shadow: var(--card-shadow); max-width: 800px; margin: 0 auto; }
.quiz-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; font-weight: 600; color: var(--text-muted); }
.timer { display: flex; align-items: center; gap: 0.5rem; color: var(--error); font-weight: 700; }

.progress-bar-container { width: 100%; height: 8px; background: var(--bg-color); border-radius: 4px; overflow: hidden; margin-bottom: 2rem; }
.progress-bar { height: 100%; background: var(--primary-color); width: 0%; transition: width 0.3s ease; }

.question-text { font-size: 1.5rem; margin-bottom: 2rem; }

.options-container { display: flex; flex-direction: column; gap: 1rem; }
.option-btn {
    text-align: left;
    padding: 1rem 1.5rem;
    border: 2px solid var(--border-color);
    background: var(--bg-color);
    border-radius: 8px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.2s;
}
[dir="rtl"] .option-btn { text-align: right; }

.option-btn:hover:not(:disabled) { border-color: var(--primary-color); background: rgba(37, 99, 235, 0.05); }
.option-btn.selected { border-color: var(--primary-color); background: var(--primary-color); color: #fff; }
.option-btn.correct { border-color: var(--success); background: var(--success); color: #fff; }
.option-btn.wrong { border-color: var(--error); background: var(--error); color: #fff; }
.option-btn:disabled { cursor: not-allowed; }

.score-display { font-size: 3rem; font-weight: 700; color: var(--primary-color); text-align: center; margin: 2rem 0; }

.back-link a { color: var(--text-muted); text-decoration: none; }
.back-link a:hover { color: var(--primary-color); }