/* ==========================================
   TCS NQT PREP HUB — STYLESHEET
   ========================================== */

:root {
    --bg: #f0f2f5;
    --bg-card: #ffffff;
    --bg-sidebar: #1a1a2e;
    --text: #1a1a2e;
    --text-secondary: #6b7280;
    --text-sidebar: #e0e0e0;
    --primary: #4361ee;
    --primary-light: #eef0ff;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --border: #e5e7eb;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 15px rgba(0,0,0,0.1);
    --radius: 12px;
    --sidebar-width: 260px;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --bg: #0f172a;
    --bg-card: #1e293b;
    --text: #f1f5f9;
    --text-secondary: #94a3b8;
    --primary: #6366f1;
    --primary-light: #1e1b4b;
    --border: #334155;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-lg: 0 4px 15px rgba(0,0,0,0.3);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ===== SIDEBAR ===== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    color: var(--text-sidebar);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 1000;
    transition: var(--transition);
}

.sidebar.collapsed { width: 70px; }
.sidebar.collapsed .nav-links span,
.sidebar.collapsed .sidebar-header span,
.sidebar.collapsed .sidebar-footer span { display: none; }
.sidebar.collapsed .logo { justify-content: center; }

.sidebar-header {
    padding: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
}

.logo i { font-size: 1.5rem; color: var(--primary); }

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--text-sidebar);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 0.3rem;
}

.nav-links {
    list-style: none;
    flex: 1;
    padding: 0.75rem 0;
    overflow-y: auto;
}

.nav-links li {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.8rem 1.25rem;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.92rem;
    font-weight: 500;
    border-left: 3px solid transparent;
}

.nav-links li:hover { background: rgba(255,255,255,0.08); }
.nav-links li.active {
    background: rgba(67,97,238,0.2);
    border-left-color: var(--primary);
    color: #fff;
}

.nav-links li i { width: 20px; text-align: center; font-size: 1rem; }

.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.exam-countdown {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.82rem;
    color: var(--warning);
    font-weight: 600;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
    transition: var(--transition);
}

.sidebar.collapsed ~ .main-content { margin-left: 70px; }

.top-bar {
    background: var(--bg-card);
    padding: 0.9rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-bar h2 { font-size: 1.2rem; font-weight: 700; }

.top-bar-right { display: flex; align-items: center; gap: 1rem; }

.streak-badge {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: white;
    padding: 0.35rem 0.85rem;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
}

.theme-toggle {
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    color: var(--text);
}

/* ===== PAGES ===== */
.page { display: none; padding: 1.5rem; max-width: 1400px; margin: 0 auto; }
.page.active { display: block; }

/* ===== DASHBOARD ===== */
.welcome-banner {
    background: linear-gradient(135deg, #4361ee, #7c3aed);
    color: white;
    border-radius: var(--radius);
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.welcome-text h1 { font-size: 1.6rem; margin-bottom: 0.3rem; }
.welcome-text p { opacity: 0.9; font-size: 0.95rem; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.stat-info h3 { font-size: 1.5rem; font-weight: 800; }
.stat-info p { font-size: 0.8rem; color: var(--text-secondary); }

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.card h3 {
    font-size: 1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.topic-bars { display: flex; flex-direction: column; gap: 0.75rem; }

.topic-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.topic-bar-label {
    font-size: 0.82rem;
    width: 130px;
    flex-shrink: 0;
    font-weight: 500;
}

.topic-bar-track {
    flex: 1;
    height: 8px;
    background: var(--bg);
    border-radius: 4px;
    overflow: hidden;
}

.topic-bar-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.topic-bar-value { font-size: 0.78rem; font-weight: 600; width: 35px; text-align: right; }

.activity-list { max-height: 300px; overflow-y: auto; }

.activity-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
}

.activity-item:last-child { border-bottom: none; }
.activity-icon { font-size: 1.2rem; }
.activity-time { color: var(--text-secondary); font-size: 0.75rem; margin-left: auto; }

.empty-state {
    color: var(--text-secondary);
    text-align: center;
    padding: 2rem;
    font-size: 0.9rem;
}

.weak-areas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
}

.weak-area-item {
    background: var(--bg);
    border-radius: 8px;
    padding: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.weak-area-item:hover { background: var(--primary-light); }

/* ===== QUIZ ===== */
.quiz-setup { max-width: 900px; margin: 0 auto; }
.quiz-setup h2 {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.4rem;
}

.quiz-config-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.config-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.config-card h4 { margin-bottom: 1rem; font-size: 1rem; }

.topic-checkboxes {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.topic-checkboxes label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    cursor: pointer;
    padding: 0.3rem 0;
}

.topic-checkboxes input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.setting-group { margin-bottom: 1.25rem; }
.setting-group > label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.5rem; }

.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.85rem;
    cursor: pointer;
    background: var(--bg);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    transition: var(--transition);
}

.radio-group label:has(input:checked) {
    background: var(--primary);
    color: white;
}

.radio-group input[type="radio"] { display: none; }

.quick-test-btns {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

.quick-test-btns h4 { width: 100%; margin-bottom: 0.25rem; }

/* Quiz Active */
.quiz-active { max-width: 900px; margin: 0 auto; }

.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.q-counter { font-weight: 600; font-size: 0.95rem; }

.q-topic-badge {
    background: var(--primary-light);
    color: var(--primary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-left: 0.75rem;
}

.quiz-timer {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.quiz-timer.warning { color: var(--warning); }
.quiz-timer.danger { color: var(--danger); animation: pulse 1s infinite; }

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

.quiz-progress-bar {
    width: 100%;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.quiz-progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.question-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    min-height: 300px;
}

.question-card h3 {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    white-space: pre-line;
}

.options-list { display: flex; flex-direction: column; gap: 0.75rem; }

.option-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1.25rem;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
    text-align: left;
    width: 100%;
}

.option-btn:hover { border-color: var(--primary); background: var(--primary-light); }
.option-btn.selected { border-color: var(--primary); background: var(--primary-light); font-weight: 600; }
.option-btn.correct { border-color: var(--success); background: #d1fae5; color: #065f46; }
.option-btn.wrong { border-color: var(--danger); background: #fee2e2; color: #991b1b; }
.option-btn.disabled { pointer-events: none; }

[data-theme="dark"] .option-btn.correct { background: #064e3b; color: #a7f3d0; }
[data-theme="dark"] .option-btn.wrong { background: #7f1d1d; color: #fca5a5; }

.option-letter {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.feedback-box {
    margin-top: 1.25rem;
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    line-height: 1.5;
}

.feedback-box.correct { background: #d1fae5; color: #065f46; border-left: 4px solid var(--success); }
.feedback-box.wrong { background: #fee2e2; color: #991b1b; border-left: 4px solid var(--danger); }

[data-theme="dark"] .feedback-box.correct { background: #064e3b; color: #a7f3d0; }
[data-theme="dark"] .feedback-box.wrong { background: #7f1d1d; color: #fca5a5; }

.quiz-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1.5rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.q-navigator {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    max-width: 60%;
    justify-content: center;
}

.q-nav-dot {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background: var(--bg);
    cursor: pointer;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    transition: var(--transition);
}

.q-nav-dot.current { border-color: var(--primary); background: var(--primary); color: white; }
.q-nav-dot.answered { border-color: var(--primary); background: var(--primary-light); color: var(--primary); }
.q-nav-dot.correct-dot { border-color: var(--success); background: #d1fae5; }
.q-nav-dot.wrong-dot { border-color: var(--danger); background: #fee2e2; }

/* Quiz Results */
.quiz-results { max-width: 900px; margin: 0 auto; }

.results-header {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 2rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.score-circle {
    position: relative;
    width: 120px;
    height: 120px;
    flex-shrink: 0;
}

.score-circle svg { width: 100%; height: 100%; }
.score-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}
.score-text span { font-size: 1.5rem; font-weight: 800; display: block; }
.score-text small { font-size: 0.75rem; color: var(--text-secondary); }

.results-stats { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.result-stat { display: flex; align-items: center; gap: 0.5rem; font-weight: 600; }
.result-stat.correct i { color: var(--success); }
.result-stat.wrong i { color: var(--danger); }
.result-stat.skipped i { color: var(--text-secondary); }
.result-stat.time i { color: var(--primary); }

.results-topic-breakdown {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.results-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.review-section { margin-top: 1.5rem; }

.review-item {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--border);
}

.review-item.correct { border-left-color: var(--success); }
.review-item.wrong { border-left-color: var(--danger); }
.review-item.skipped { border-left-color: var(--text-secondary); }

.review-item h4 { margin-bottom: 0.75rem; font-size: 0.95rem; }
.review-meta { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 0.5rem; }
.review-explanation { font-size: 0.85rem; margin-top: 0.5rem; padding: 0.5rem; background: var(--bg); border-radius: 6px; }

/* ===== STUDY MATERIALS ===== */
.study-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.study-tab {
    padding: 0.6rem 1.2rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    background: var(--bg-card);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
}

.study-tab.active { border-color: var(--primary); background: var(--primary); color: white; }
.study-tab:hover:not(.active) { border-color: var(--primary); }

.study-content { display: none; }
.study-content.active { display: block; }

.study-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
}

.study-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.study-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--primary); }

.study-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: white;
}

.study-card h4 { margin-bottom: 0.5rem; font-size: 1rem; }
.study-card p { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 0.75rem; }

.study-meta {
    display: flex;
    gap: 0.5rem;
}

.study-meta span {
    background: var(--bg);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ===== MODAL ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-content {
    background: var(--bg-card);
    border-radius: var(--radius);
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.large-modal { max-width: 800px; }

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: var(--bg-card);
    z-index: 10;
}

.modal-header h2 { font-size: 1.2rem; }

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0.25rem;
}

.modal-body {
    padding: 1.5rem;
    font-size: 0.92rem;
    line-height: 1.7;
}

.modal-body h4 { margin: 1.25rem 0 0.75rem; color: var(--primary); }
.modal-body ul { padding-left: 1.25rem; margin-bottom: 1rem; }
.modal-body li { margin-bottom: 0.4rem; }
.modal-body pre {
    background: #1e293b;
    color: #e2e8f0;
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 0.82rem;
    margin: 1rem 0;
}
.modal-body code { font-family: 'Consolas', 'Monaco', monospace; }

.vocab-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 0.85rem;
}

.vocab-table th, .vocab-table td {
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border);
    text-align: left;
}

.vocab-table th { background: var(--bg); font-weight: 600; }

/* ===== INTERVIEW PREP ===== */
.interview-header { text-align: center; margin-bottom: 1.5rem; }
.interview-header p { color: var(--text-secondary); }

.interview-tabs {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.int-tab {
    padding: 0.6rem 1.5rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    background: var(--bg-card);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.88rem;
    transition: var(--transition);
}

.int-tab.active { border-color: var(--primary); background: var(--primary); color: white; }

.interview-content { max-width: 800px; margin: 0 auto; }

.interview-item {
    background: var(--bg-card);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.interview-question {
    padding: 1rem 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    font-size: 0.92rem;
    transition: var(--transition);
}

.interview-question:hover { background: var(--bg); }

.interview-question .diff-badge {
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    flex-shrink: 0;
}

.diff-badge.easy { background: #d1fae5; color: #065f46; }
.diff-badge.medium { background: #fef3c7; color: #92400e; }
.diff-badge.hard { background: #fee2e2; color: #991b1b; }

.interview-answer {
    display: none;
    padding: 0 1.25rem 1rem;
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
    padding-top: 0.75rem;
}

.interview-answer.open { display: block; }

.interview-tip {
    background: var(--primary-light);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--primary);
    font-weight: 500;
}

/* ===== FLASHCARDS ===== */
.flashcard-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.fc-topic-select select {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text);
    font-size: 0.9rem;
}

.flashcard-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    min-height: 300px;
}

.flashcard {
    width: 500px;
    height: 300px;
    perspective: 1000px;
    cursor: pointer;
}

.flashcard-inner {
    width: 100%;
    height: 100%;
    position: relative;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.flashcard-inner.flipped { transform: rotateY(180deg); }

.flashcard-front, .flashcard-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.flashcard-front {
    background: linear-gradient(135deg, #4361ee, #7c3aed);
    color: white;
}

.flashcard-front h3 { font-size: 1.3rem; }
.flashcard-front .fc-hint { font-size: 0.75rem; opacity: 0.6; margin-bottom: 0.5rem; }

.flashcard-back {
    background: var(--bg-card);
    transform: rotateY(180deg);
    border: 2px solid var(--primary);
}

.flashcard-back p {
    font-size: 0.9rem;
    line-height: 1.8;
    white-space: pre-line;
}

.fc-nav-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 2px solid var(--border);
    cursor: pointer;
    font-size: 1.1rem;
    color: var(--text);
    transition: var(--transition);
}

.fc-nav-btn:hover { border-color: var(--primary); color: var(--primary); }

.fc-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

#fcCounter { font-weight: 600; }

.fc-actions { display: flex; gap: 0.5rem; }

/* ===== RESOURCES ===== */
.resource-section { margin-bottom: 1.5rem; }

.exam-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.exam-table th, .exam-table td {
    padding: 0.75rem;
    border: 1px solid var(--border);
    text-align: left;
}

.exam-table th { background: var(--primary); color: white; font-weight: 600; }
.exam-table .total-row { background: var(--bg); font-weight: 700; }

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.tip-card h3 { font-size: 1rem; margin-bottom: 0.75rem; }

.day-plan .day {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.88rem;
}

.tip-list {
    list-style: none;
    padding: 0;
}

.tip-list li {
    padding: 0.4rem 0;
    padding-left: 1.25rem;
    position: relative;
    font-size: 0.88rem;
}

.tip-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
}

.formula-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.formula-item {
    background: var(--bg);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.82rem;
}

.formula-item strong { color: var(--primary); }

/* ===== GLASSMORPHISM CARDS ===== */
.glass-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

[data-theme="dark"] .glass-card {
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

/* ===== RESOURCE TABS ===== */
.resource-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    padding: 0.5rem;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border);
}

.res-tab {
    padding: 0.65rem 1.2rem;
    border: none;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.res-tab:hover {
    background: var(--bg);
    color: var(--text);
}

.res-tab.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.res-content { display: none; animation: fadeInUp 0.4s ease; }
.res-content.active { display: block; }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== INFO HIGHLIGHT CARDS ===== */
.info-cards-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.info-highlight {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem 1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.info-highlight:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.info-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
}

.info-icon.green { background: linear-gradient(135deg, #10b981, #34d399); }
.info-icon.blue { background: linear-gradient(135deg, #3b82f6, #60a5fa); }
.info-icon.purple { background: linear-gradient(135deg, #8b5cf6, #a78bfa); }
.info-icon.orange { background: linear-gradient(135deg, #f59e0b, #fbbf24); }

.info-highlight h4 { margin: 0 0 0.4rem; font-size: 0.95rem; }
.info-highlight p { margin: 0; font-size: 0.82rem; color: var(--text-secondary); }

.card-subtitle {
    margin: -0.5rem 0 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ===== DETAIL GRID ===== */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 0.75rem;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem;
    background: var(--bg);
    border-radius: 8px;
    font-size: 0.88rem;
}

.detail-item i {
    color: var(--primary);
    width: 20px;
    text-align: center;
}

/* ===== VIDEO RESOURCES ===== */
.video-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.video-playlist-card {
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-playlist-card.featured {
    border-left: 4px solid #ff0000;
}

.video-playlist-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.playlist-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    background: #ff0000;
    color: white;
    padding: 0.25rem 0.65rem;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.playlist-desc {
    color: var(--text-secondary);
    font-size: 0.88rem;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.btn-youtube {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #ff0000;
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.3s ease, transform 0.2s ease;
    border: none;
    cursor: pointer;
}

.btn-youtube:hover {
    background: #cc0000;
    transform: scale(1.03);
}

.section-heading {
    margin: 2rem 0 1rem;
    font-size: 1.1rem;
    color: var(--text);
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.video-card {
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.video-card .video-thumb {
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    position: relative;
}

.video-card .video-thumb .play-icon {
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ff0000;
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.video-card:hover .play-icon { transform: scale(1.15); }

.video-card .video-info {
    padding: 0.75rem 1rem;
    background: var(--card-bg);
}

.video-card .video-info h4 {
    font-size: 0.88rem;
    margin: 0 0 0.25rem;
}

.video-card .video-info p {
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ===== CHANNEL GRID ===== */
.channel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.channel-card {
    display: flex;
    gap: 1rem;
    align-items: center;
    transition: transform 0.3s ease;
}

.channel-card:hover { transform: translateY(-2px); }

.channel-icon {
    min-width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.4rem;
    font-weight: 800;
}

.channel-info h4 { margin: 0 0 0.25rem; font-size: 0.95rem; }
.channel-info p { margin: 0 0 0.4rem; font-size: 0.8rem; color: var(--text-secondary); }
.channel-link {
    font-size: 0.82rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}
.channel-link:hover { text-decoration: underline; }

/* ===== LINKS GRID ===== */
.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.link-card {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-decoration: none;
    color: inherit;
}

.link-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.link-icon {
    min-width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
}

.link-info h4 { margin: 0 0 0.2rem; font-size: 0.92rem; }
.link-info p { margin: 0 0 0.3rem; font-size: 0.78rem; color: var(--text-secondary); }
.link-url {
    font-size: 0.75rem;
    color: var(--primary);
    word-break: break-all;
}

/* ===== RESOURCE TOPIC GRID ===== */
.resource-topic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.resource-topic-card h4 {
    margin: 0 0 0.6rem;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.resource-topic-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.resource-topic-card li {
    padding: 0.4rem 0;
    font-size: 0.82rem;
    border-bottom: 1px solid var(--border);
}

.resource-topic-card li:last-child { border-bottom: none; }

.resource-topic-card li a {
    color: var(--primary);
    text-decoration: none;
}

.resource-topic-card li a:hover { text-decoration: underline; }

/* ===== DOWNLOADS GRID ===== */
.downloads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.download-card {
    text-align: center;
    padding: 1.5rem 1rem;
}

.dl-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.download-card h4 { margin: 0 0 0.4rem; }
.download-card p { font-size: 0.82rem; color: var(--text-secondary); margin: 0 0 0.75rem; }

.book-tag {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    background: var(--primary);
    color: white;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 600;
}

/* ===== DAY PLAN ENHANCED ===== */
.day-plan .day {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
}

.day-plan .day:last-child { border-bottom: none; }

.day-number {
    min-width: 36px;
    height: 36px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.day-content {
    font-size: 0.88rem;
    line-height: 1.5;
}

/* ===== WARNING LIST ===== */
.warning-list li::before {
    content: "⚠" !important;
    color: #f59e0b !important;
}

/* ===== PRO TIPS ===== */
.pro-tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.25rem;
}

.pro-tip {
    background: var(--bg);
    border-radius: 10px;
    padding: 1rem;
}

.pro-tip h4 { margin: 0 0 0.5rem; font-size: 0.95rem; }
.pro-tip ul { margin: 0; padding: 0 0 0 1.2rem; font-size: 0.82rem; }
.pro-tip li { margin-bottom: 0.3rem; color: var(--text-secondary); }

.span-2 { grid-column: 1 / -1; }

/* ===== TCS INFO SECTION ===== */
.tcs-hero {
    background: linear-gradient(135deg, #1a1a2e, #16213e, #0f3460) !important;
    color: white !important;
    padding: 2.5rem !important;
    text-align: center;
    margin-bottom: 1.5rem;
    border: none !important;
}

.tcs-hero h2 { font-size: 1.8rem; margin: 0 0 0.25rem; }
.tcs-tagline { font-size: 1.1rem; font-style: italic; opacity: 0.8; margin: 0 0 0.75rem; }
.tcs-desc { font-size: 0.92rem; opacity: 0.85; max-width: 600px; margin: 0 auto; line-height: 1.6; }

.tcs-stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.tcs-stat-card {
    text-align: center;
    padding: 1.25rem;
}

.tcs-stat-card h3 {
    font-size: 1.5rem;
    margin: 0 0 0.25rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tcs-stat-card p { margin: 0; font-size: 0.82rem; color: var(--text-secondary); }

.tcs-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.25rem;
}

/* ===== SALARY CARDS ===== */
.salary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.salary-card {
    background: var(--bg);
    border-radius: 10px;
    padding: 1.25rem;
    text-align: center;
    border-top: 3px solid;
    transition: transform 0.3s ease;
}

.salary-card:hover { transform: translateY(-3px); }

.salary-card.ninja { border-top-color: #6b7280; }
.salary-card.digital { border-top-color: #3b82f6; }
.salary-card.prime { border-top-color: #f59e0b; }

.salary-card h4 { margin: 0 0 0.5rem; font-size: 1.05rem; }
.salary-amount { font-size: 1.3rem; font-weight: 800; color: var(--primary); margin-bottom: 0.3rem; }
.salary-card p { font-size: 0.78rem; color: var(--text-secondary); margin: 0 0 0.6rem; }
.salary-card ul { text-align: left; padding: 0 0 0 1.2rem; margin: 0; font-size: 0.78rem; }
.salary-card li { margin-bottom: 0.2rem; color: var(--text-secondary); }

/* ===== ILP INFO ===== */
.ilp-info p { font-size: 0.9rem; margin-bottom: 1rem; line-height: 1.6; }

.ilp-details {
    display: grid;
    gap: 0.5rem;
}

.ilp-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    background: var(--bg);
    border-radius: 8px;
    font-size: 0.85rem;
}

.ilp-item i { color: var(--primary); width: 20px; text-align: center; }

/* ===== HIRING TIMELINE ===== */
.hiring-timeline {
    position: relative;
    padding-left: 2rem;
}

.hiring-timeline::before {
    content: '';
    position: absolute;
    left: 17px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary);
    opacity: 0.3;
}

.timeline-step {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.25rem;
    position: relative;
}

.step-num {
    min-width: 34px;
    height: 34px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.82rem;
    z-index: 1;
    margin-left: -2rem;
}

.step-content {
    font-size: 0.88rem;
    line-height: 1.5;
    padding-top: 0.3rem;
}

/* ===== MILESTONES ===== */
.milestones-list { display: flex; flex-direction: column; gap: 0.5rem; }

.milestone {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    padding: 0.4rem 0;
    font-size: 0.85rem;
}

.milestone .yr {
    min-width: 48px;
    text-align: center;
    padding: 0.15rem 0.4rem;
    background: var(--primary);
    color: white;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.78rem;
}

/* ===== TABLE ENHANCEMENTS ===== */
.exam-table.compact { font-size: 0.85rem; }
.exam-table .highlight-row { background: rgba(102, 126, 234, 0.1); font-weight: 600; }

/* ===== SMOOTH PAGE TRANSITIONS ===== */
.page {
    animation: fadeIn 0.3s ease;
}

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

/* ===== CARD HOVER ENHANCEMENTS ===== */
.study-card { transition: transform 0.3s ease, box-shadow 0.3s ease; }
.study-card:hover { transform: translateY(-5px); box-shadow: 0 12px 35px rgba(0,0,0,0.12); }
.stat-card { transition: transform 0.3s ease; }
.stat-card:hover { transform: translateY(-3px); }
.tip-card { transition: transform 0.3s ease; }
.tip-card:hover { transform: translateY(-2px); }

/* ===== RESPONSIVE IMPROVEMENTS ===== */
@media (max-width: 768px) {
    .resource-tabs { gap: 0.3rem; padding: 0.3rem; }
    .res-tab { padding: 0.5rem 0.8rem; font-size: 0.78rem; }
    .res-tab i { display: none; }
    .video-section { grid-template-columns: 1fr; }
    .info-cards-row { grid-template-columns: 1fr 1fr; }
    .tcs-info-grid { grid-template-columns: 1fr; }
    .channel-grid { grid-template-columns: 1fr; }
    .pro-tips-grid { grid-template-columns: 1fr; }
    .salary-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .info-cards-row { grid-template-columns: 1fr; }
    .tcs-stats-row { grid-template-columns: 1fr 1fr; }
    .detail-grid { grid-template-columns: 1fr; }
}

.tcs-facts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.fact {
    padding: 0.4rem 0;
    font-size: 0.88rem;
    border-bottom: 1px solid var(--border);
}

/* ===== PROGRESS ===== */
.progress-overview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.progress-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.progress-stat-item {
    background: var(--bg);
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
}

.progress-stat-item h4 { font-size: 1.5rem; color: var(--primary); }
.progress-stat-item p { font-size: 0.78rem; color: var(--text-secondary); }

.mastery-grid { display: flex; flex-direction: column; gap: 0.75rem; }

.mastery-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.mastery-label { width: 140px; font-size: 0.85rem; font-weight: 500; flex-shrink: 0; }

.mastery-bar {
    flex: 1;
    height: 20px;
    background: var(--bg);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.mastery-fill {
    height: 100%;
    border-radius: 10px;
    transition: width 0.5s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    color: white;
    font-weight: 700;
    min-width: 30px;
}

.test-history-table { max-height: 300px; overflow-y: auto; }

.history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
}

.chart-container {
    height: 200px;
    display: flex;
    align-items: flex-end;
    gap: 6px;
    padding-top: 1rem;
}

.chart-bar {
    flex: 1;
    min-width: 20px;
    max-width: 40px;
    border-radius: 4px 4px 0 0;
    background: var(--primary);
    transition: height 0.5s ease;
    position: relative;
    cursor: pointer;
}

.chart-bar:hover { opacity: 0.8; }

.chart-bar::after {
    content: attr(data-label);
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.65rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.progress-actions { text-align: center; margin-top: 1rem; }

/* ===== BUTTONS ===== */
.btn {
    padding: 0.6rem 1.25rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

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

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: #3b53cc; }
.btn-secondary { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.btn-success { background: var(--success); color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-warning { background: var(--warning); color: white; }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: white; }
.btn-lg { padding: 0.8rem 2rem; font-size: 1rem; }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.78rem; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .dashboard-grid { grid-template-columns: 1fr; }
    .quiz-config-grid { grid-template-columns: 1fr; }
    .progress-overview { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width);
    }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0 !important; }
    .mobile-menu-btn { display: block; }
    .welcome-banner { flex-direction: column; text-align: center; gap: 1rem; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .results-header { flex-direction: column; text-align: center; }
    .flashcard { width: 100%; max-width: 400px; height: 250px; }
    .tips-grid { grid-template-columns: 1fr; }
    .tcs-facts, .formula-grid { grid-template-columns: 1fr; }
    .q-navigator { max-width: 100%; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .study-grid { grid-template-columns: 1fr; }
    .quiz-nav { flex-direction: column; }
    .results-actions { flex-direction: column; }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ===== SELECTION ===== */
::selection { background: var(--primary); color: white; }

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.page.active { animation: fadeIn 0.3s ease; }

/* ===== POMODORO MINI (TOP BAR) ===== */
.pomodoro-mini {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: linear-gradient(135deg, #ef4444, #f97316);
    color: white;
    padding: 0.35rem 0.85rem;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.pomodoro-mini:hover { transform: scale(1.05); opacity: 0.9; }

/* ===== POMODORO CARD ===== */
.pomodoro-card { text-align: center; margin-bottom: 1.5rem; }
.pomodoro-desc { color: var(--text-secondary); font-size: 0.88rem; margin-bottom: 1.5rem; }
.pomodoro-display { display: flex; align-items: center; justify-content: center; gap: 2rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.pomodoro-circle { position: relative; width: 180px; height: 180px; }
.pomodoro-circle svg { width: 100%; height: 100%; }
.pomodoro-time { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); text-align: center; }
.pomodoro-time span { font-size: 2.2rem; font-weight: 800; display: block; }
.pomodoro-time small { font-size: 0.85rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px; }
.pomodoro-controls { display: flex; flex-direction: column; gap: 0.75rem; align-items: center; }
.pomodoro-rounds { font-size: 0.88rem; font-weight: 600; color: var(--text-secondary); }
.pomodoro-settings { display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap; padding-top: 1rem; border-top: 1px solid var(--border); }
.pomodoro-settings label { display: flex; align-items: center; gap: 0.4rem; font-size: 0.85rem; color: var(--text-secondary); }
.pomodoro-settings input { width: 50px; padding: 0.3rem; border: 1px solid var(--border); border-radius: 6px; text-align: center; background: var(--bg); color: var(--text); font-size: 0.85rem; }

/* ===== NOTES ===== */
.notes-header { margin-bottom: 1.5rem; }
.notes-header h2 { margin-bottom: 0.25rem; }
.notes-editor-card { margin-bottom: 1.5rem; }
.notes-toolbar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1rem; }
.notes-actions { display: flex; gap: 0.5rem; align-items: center; }
.note-select { padding: 0.4rem 0.75rem; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); font-size: 0.85rem; }
.note-title-input { width: 100%; padding: 0.6rem 0.75rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); font-size: 0.95rem; font-weight: 600; margin-bottom: 0.75rem; }
.note-textarea { width: 100%; padding: 0.75rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); font-size: 0.9rem; line-height: 1.6; resize: vertical; font-family: inherit; }
.note-textarea:focus, .note-title-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(67,97,238,0.1); }
.notes-list-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; flex-wrap: wrap; gap: 0.5rem; }
.notes-filter select { padding: 0.4rem 0.75rem; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); font-size: 0.85rem; }
.notes-list { display: flex; flex-direction: column; gap: 0.75rem; }

.note-item {
    background: var(--bg);
    border-radius: 10px;
    padding: 1rem;
    border-left: 4px solid var(--primary);
    transition: var(--transition);
}
.note-item:hover { box-shadow: var(--shadow); }
.note-item-header { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem; }
.note-category-badge { font-size: 0.75rem; background: var(--primary-light); color: var(--primary); padding: 0.15rem 0.5rem; border-radius: 4px; font-weight: 600; text-transform: capitalize; }
.note-date { font-size: 0.72rem; color: var(--text-secondary); margin-left: auto; }
.note-delete-btn { background: none; border: none; color: var(--danger); cursor: pointer; font-size: 0.78rem; padding: 0.2rem; opacity: 0.5; transition: var(--transition); }
.note-delete-btn:hover { opacity: 1; }
.note-item-title { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.3rem; }
.note-item-content { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; white-space: pre-wrap; }

/* ===== BOOKMARKS ===== */
.bookmarks-header { margin-bottom: 1.5rem; }
.bookmarks-header h2 { margin-bottom: 0.25rem; }
.bookmarks-header p { color: var(--text-secondary); font-size: 0.9rem; }

.bookmark-btn {
    background: none;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0.2rem 0.4rem;
    transition: var(--transition);
    margin-left: 0.5rem;
}
.bookmark-btn:hover { color: var(--warning); transform: scale(1.2); }
.bookmark-btn.bookmarked { color: var(--warning); }
.bookmark-btn.bookmarked i { animation: bookmarkPop 0.3s ease; }

@keyframes bookmarkPop {
    0% { transform: scale(1); }
    50% { transform: scale(1.4); }
    100% { transform: scale(1); }
}

.bookmark-filters {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}
.bm-filter {
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--bg-card);
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    transition: var(--transition);
}
.bm-filter:hover { border-color: var(--primary); }
.bm-filter.active { background: var(--primary); color: white; border-color: var(--primary); }

.bm-stats-row { display: flex; gap: 1rem; align-items: center; margin-bottom: 1rem; flex-wrap: wrap; }
.bm-stat-total { font-weight: 700; font-size: 0.95rem; }
.bm-stat-item { font-size: 0.82rem; color: var(--text-secondary); background: var(--bg); padding: 0.2rem 0.5rem; border-radius: 4px; }

.bookmarks-list { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem; }

.bookmark-item {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--warning);
    transition: var(--transition);
}
.bookmark-item:hover { box-shadow: var(--shadow-lg); }
.bm-item-header { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.75rem; }
.bm-topic-badge { font-size: 0.78rem; background: var(--primary-light); color: var(--primary); padding: 0.15rem 0.5rem; border-radius: 4px; font-weight: 600; }
.bm-remove-btn { background: none; border: none; color: var(--danger); cursor: pointer; margin-left: auto; font-size: 0.85rem; opacity: 0.5; transition: var(--transition); }
.bm-remove-btn:hover { opacity: 1; }
.bm-question { font-size: 0.95rem; margin-bottom: 0.75rem; line-height: 1.5; white-space: pre-line; }
.bm-options { display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem; margin-bottom: 0.75rem; font-size: 0.85rem; }
.bm-correct-opt { color: var(--success); font-weight: 700; }
.bm-explanation { font-size: 0.82rem; color: var(--text-secondary); background: var(--bg); padding: 0.5rem 0.75rem; border-radius: 6px; }

.bookmark-actions { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }

/* ===== SCROLL TO TOP ===== */
.scroll-top-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(67,97,238,0.4);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 999;
    pointer-events: none;
}
.scroll-top-btn.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.scroll-top-btn:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(67,97,238,0.5); }

/* ===== KEYBOARD SHORTCUTS MODAL ===== */
.shortcut-list { display: flex; flex-direction: column; gap: 0.5rem; }
.shortcut-item { display: flex; align-items: center; gap: 1rem; padding: 0.5rem 0; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.shortcut-item:last-child { border-bottom: none; }
kbd {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.2rem 0.5rem;
    font-size: 0.82rem;
    font-weight: 700;
    min-width: 32px;
    text-align: center;
    font-family: monospace;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

/* ===== UI ENHANCEMENTS ===== */
/* Smooth card entrance animations */
.stat-card, .study-card, .video-card, .link-card, .note-item, .bookmark-item {
    animation: cardSlideIn 0.3s ease backwards;
}
@keyframes cardSlideIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Better focus styles for accessibility */
.btn:focus-visible, .option-btn:focus-visible, .bookmark-btn:focus-visible, .note-select:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Pulse animation for active timer */
.pomodoro-mini.active {
    animation: timerPulse 2s ease infinite;
}
@keyframes timerPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(239,68,68,0.4); }
    50% { box-shadow: 0 0 0 8px rgba(239,68,68,0); }
}

/* Enhanced tooltips */
[title] { position: relative; }

/* Mobile responsive for new features */
@media (max-width: 768px) {
    .pomodoro-display { flex-direction: column; }
    .pomodoro-circle { width: 150px; height: 150px; }
    .pomodoro-time span { font-size: 1.8rem; }
    .notes-toolbar { flex-direction: column; align-items: stretch; }
    .bm-options { grid-template-columns: 1fr; }
    .pomodoro-mini span { display: none; }
    .bookmark-filters { gap: 0.3rem; }
    .bm-filter { padding: 0.3rem 0.6rem; font-size: 0.75rem; }
}

@media (max-width: 480px) {
    .pomodoro-settings { flex-direction: column; align-items: center; }
    .scroll-top-btn { bottom: 1rem; right: 1rem; width: 38px; height: 38px; }
}

/* ===== GLOBAL SEARCH ===== */
.search-container { position: relative; }
.search-trigger {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.4rem 0.8rem;
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    transition: all 0.2s;
}
.search-trigger:hover { border-color: var(--primary); color: var(--primary); }
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    z-index: 10000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 12vh;
}
.search-box {
    background: var(--card-bg);
    border-radius: 16px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    overflow: hidden;
}
.search-input-wrapper {
    display: flex;
    align-items: center;
    padding: 1rem 1.2rem;
    gap: 0.8rem;
    border-bottom: 1px solid var(--border);
}
.search-input-wrapper i { color: var(--text-secondary); font-size: 1.1rem; }
.search-input-wrapper input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 1.1rem;
    color: var(--text);
    outline: none;
    font-family: inherit;
}
.search-input-wrapper kbd {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.2rem 0.5rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}
.search-results {
    max-height: 400px;
    overflow-y: auto;
    padding: 0.5rem;
}
.search-result-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.7rem 0.8rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s;
}
.search-result-item:hover { background: var(--bg-secondary); }
.sr-icon { font-size: 1.3rem; width: 28px; text-align: center; }
.sr-text { display: flex; flex-direction: column; gap: 0.15rem; min-width: 0; }
.sr-title { font-size: 0.9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sr-title mark { background: #fef08a; color: inherit; border-radius: 2px; padding: 0 2px; }
.sr-meta { font-size: 0.75rem; color: var(--text-secondary); }
.search-empty, .search-more {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== SPACED REPETITION & FLASHCARD EXTRAS ===== */
.fc-extras { margin-top: 1.5rem; padding: 0 1rem; }
.fc-mode-toggle {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    justify-content: center;
    margin-bottom: 1rem;
}
.toggle-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
}
.toggle-label input { display: none; }
.toggle-slider {
    width: 40px;
    height: 22px;
    background: var(--border);
    border-radius: 11px;
    position: relative;
    transition: background 0.3s;
}
.toggle-slider::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    background: white;
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: transform 0.3s;
}
.toggle-label input:checked + .toggle-slider { background: var(--primary); }
.toggle-label input:checked + .toggle-slider::after { transform: translateX(18px); }
.fc-mode-info { cursor: help; font-size: 0.85rem; }
.fc-stats {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.fc-stat {
    padding: 0.3rem 0.7rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}
.fc-stat.hard { background: #fee2e2; color: #991b1b; }
.fc-stat.med { background: #fef3c7; color: #92400e; }
.fc-stat.easy { background: #d1fae5; color: #065f46; }
.fc-stat.unseen { background: var(--bg-secondary); color: var(--text-secondary); }

[data-theme="dark"] .fc-stat.hard { background: #7f1d1d; color: #fca5a5; }
[data-theme="dark"] .fc-stat.med { background: #78350f; color: #fde68a; }
[data-theme="dark"] .fc-stat.easy { background: #064e3b; color: #6ee7b7; }

/* Custom Flashcard Card */
.fc-custom-card { margin-top: 2rem; }
.fc-custom-form {
    display: grid;
    gap: 0.8rem;
    margin-top: 1rem;
}
.fc-input {
    width: 100%;
    padding: 0.7rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.9rem;
    background: var(--bg);
    color: var(--text);
    font-family: inherit;
    transition: border-color 0.2s;
}
.fc-input:focus { border-color: var(--primary); outline: none; }
.custom-fc-list { margin-top: 1rem; }
.custom-fc-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.8rem;
    background: var(--bg-secondary);
    border-radius: 6px;
    margin-bottom: 0.4rem;
    font-size: 0.85rem;
}
.btn-icon {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.3rem;
    border-radius: 4px;
    transition: color 0.2s;
}
.btn-icon:hover { color: var(--danger); }

/* ===== FORMULA SHEET PAGE ===== */
.page-desc {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}
.formula-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}
.formula-actions select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card-bg);
    color: var(--text);
    font-size: 0.9rem;
}
.formula-sheet-grid { display: grid; gap: 1.5rem; }
.formula-section {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border);
}
.formula-section-title {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary);
    color: var(--primary);
}
.formula-grid-compact {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 0.6rem;
}
.formula-cell {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 0.8rem;
    background: var(--bg-secondary);
    border-radius: 6px;
    font-size: 0.85rem;
    gap: 0.5rem;
}
.formula-cell strong { color: var(--text); white-space: nowrap; }
.formula-cell span { color: var(--primary); font-weight: 600; text-align: right; }

/* ===== ANALYTICS PAGE ===== */
.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}
.analytics-card { min-height: 280px; }
.analytics-card.span-2 { grid-column: span 2; }
.chart-canvas {
    width: 100%;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.chart-svg { width: 100%; height: auto; max-height: 220px; }
.chart-subtitle { color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 0.8rem; }

/* Heatmap */
.heatmap-container { margin: 1rem 0; overflow-x: auto; }
.heatmap-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: repeat(7, 1fr);
    gap: 3px;
    grid-auto-flow: column;
}
.heatmap-cell {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    background: var(--bg-secondary);
}
.heatmap-cell.level-1 { background: #d1fae5; }
.heatmap-cell.level-2 { background: #6ee7b7; }
.heatmap-cell.level-3 { background: #10b981; }
.heatmap-cell.level-4 { background: #065f46; }
[data-theme="dark"] .heatmap-cell.level-1 { background: #064e3b; }
[data-theme="dark"] .heatmap-cell.level-2 { background: #047857; }
[data-theme="dark"] .heatmap-cell.level-3 { background: #059669; }
[data-theme="dark"] .heatmap-cell.level-4 { background: #34d399; }
.heatmap-legend {
    display: flex;
    align-items: center;
    gap: 4px;
    justify-content: flex-end;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}
.heatmap-legend .heatmap-cell { width: 12px; height: 12px; }

/* Achievements */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.8rem;
}
.achievement-item {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.8rem;
    border-radius: 10px;
    background: var(--bg-secondary);
    transition: transform 0.2s;
}
.achievement-item.unlocked { background: linear-gradient(135deg, #d1fae5, #ecfdf5); border: 1px solid #a7f3d0; }
[data-theme="dark"] .achievement-item.unlocked { background: linear-gradient(135deg, #064e3b, #022c22); border-color: #047857; }
.achievement-item.locked { opacity: 0.6; }
.achievement-icon { font-size: 1.5rem; }
.achievement-text { display: flex; flex-direction: column; }
.achievement-text strong { font-size: 0.85rem; }
.achievement-text small { font-size: 0.75rem; color: var(--text-secondary); }

/* Time Chart */
.time-bars { width: 100%; }
.time-bar-row {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.6rem;
}
.time-bar-label { font-size: 0.8rem; width: 130px; white-space: nowrap; }
.time-bar-track { flex: 1; height: 12px; background: var(--bg-secondary); border-radius: 6px; overflow: hidden; }
.time-bar-fill { height: 100%; border-radius: 6px; transition: width 0.5s; }
.time-bar-value { font-size: 0.8rem; font-weight: 600; width: 40px; text-align: right; }

/* ===== SCHEDULE PAGE ===== */
.schedule-setup { margin-bottom: 1.5rem; }
.schedule-form {
    display: grid;
    gap: 1rem;
    margin-top: 1rem;
}
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-weight: 600; font-size: 0.9rem; }
.form-group input[type="date"],
.form-group input[type="number"] {
    padding: 0.6rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.95rem;
    background: var(--bg);
    color: var(--text);
    max-width: 250px;
}
.schedule-topics {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}
.schedule-topics label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 400;
    font-size: 0.9rem;
    cursor: pointer;
}
.schedule-output { margin-top: 1.5rem; }
.schedule-summary { margin-bottom: 1.5rem; }
.schedule-meta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.schedule-meta i { color: var(--primary); margin-right: 0.3rem; }
.schedule-phases {
    display: flex;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}
.phase-badge {
    padding: 0.6rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.85rem;
    border-left: 4px solid var(--primary);
}
.schedule-days { display: grid; gap: 0.8rem; }
.schedule-phase-header {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 1rem 0 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--primary);
    color: white;
    border-radius: 8px;
}
.schedule-day-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem 1.2rem;
}
.schedule-day-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.6rem;
    flex-wrap: wrap;
}
.schedule-day-num { font-weight: 700; color: var(--primary); min-width: 50px; }
.schedule-day-date { font-size: 0.85rem; color: var(--text-secondary); }
.schedule-day-topic { font-size: 0.85rem; font-weight: 600; margin-left: auto; }
.schedule-activities {
    list-style: none;
    padding: 0;
    margin: 0;
}
.schedule-activities li {
    padding: 0.3rem 0;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

/* ===== PRINT STYLES ===== */
@media print {
    .sidebar, .top-bar, .scroll-top-btn, .search-overlay, .btn,
    .formula-actions, .nav-links, .mobile-menu-btn { display: none !important; }
    .main-content { margin-left: 0 !important; padding: 0 !important; }
    .page { display: block !important; }
    .formula-section { break-inside: avoid; border: 1px solid #ddd; margin-bottom: 1rem; }
    .card { break-inside: avoid; box-shadow: none; border: 1px solid #ddd; }
    body { background: white; color: black; }
}

/* ===== RESPONSIVE ADJUSTMENTS FOR NEW FEATURES ===== */
@media (max-width: 1024px) {
    .analytics-card.span-2 { grid-column: span 1; }
}
@media (max-width: 768px) {
    .analytics-grid { grid-template-columns: 1fr; }
    .formula-grid-compact { grid-template-columns: 1fr; }
    .achievements-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
    .search-box { width: 95%; }
    .schedule-day-header { flex-direction: column; align-items: flex-start; gap: 0.3rem; }
    .schedule-day-topic { margin-left: 0; }
    .heatmap-grid { gap: 2px; }
    .heatmap-cell { width: 11px; height: 11px; }
}
@media (max-width: 480px) {
    .search-input-wrapper { padding: 0.8rem; }
    .schedule-meta { flex-direction: column; gap: 0.5rem; }
}