/* ===== VARIABLES ===== */
:root {
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.3);
    
    --secondary: #10b981;
    --secondary-light: #34d399;
    
    --danger: #ef4444;
    --danger-light: #f87171;
    
    --warning: #f59e0b;
    
    --dark: #0f172a;
    --dark-light: #1e293b;
    --dark-lighter: #334155;
    
    --gray: #64748b;
    --gray-light: #94a3b8;
    --gray-lighter: #cbd5e1;
    
    --font-main: 'Heebo', sans-serif;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 25px rgba(0,0,0,0.25);
    --shadow-glow: 0 0 20px var(--primary-glow);
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    overscroll-behavior-y: contain;
    -webkit-user-select: none;
    user-select: none;
}

body {
    font-family: var(--font-main);
    background: var(--dark);
    color: white;
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
    min-height: 100vh;
}

input, textarea {
    -webkit-user-select: text;
    user-select: text;
}

/* ===== SPLASH SCREEN ===== */
#splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

#splash-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

.splash-logo {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: bounce 1s ease infinite;
}

.splash-title {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2rem;
}

.loader {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255,255,255,0.1);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loader-small {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255,255,255,0.1);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ===== SCREENS ===== */
.screen {
    display: none;
    min-height: 100vh;
    padding-bottom: 75px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.screen.active {
    display: block;
}

/* ===== HEADER ===== */
.app-header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    padding: 0.75rem 1rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.1rem;
    font-weight: 700;
}

.user-section {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header-btn {
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.header-btn:hover {
    background: rgba(255,255,255,0.3);
}

.user-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: white;
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    padding: 0.75rem;
    max-width: 500px;
    margin: 0 auto;
}

.home-compact {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    min-height: calc(100vh - 130px);
}

/* ===== LEVEL CARD ===== */
.level-card-compact {
    background: linear-gradient(135deg, var(--dark-light) 0%, var(--dark-lighter) 100%);
    border-radius: var(--radius-lg);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255,255,255,0.05);
}

.level-badge {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
    flex-shrink: 0;
}

.level-num {
    font-size: 1.3rem;
    font-weight: 800;
}

.level-info {
    flex: 1;
    min-width: 0;
}

.level-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.level-progress-wrap {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.level-progress-bar {
    flex: 1;
    height: 6px;
    background: rgba(255,255,255,0.1);
    border-radius: 100px;
    overflow: hidden;
}

.level-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 100px;
    transition: width 0.5s ease;
}

.level-xp {
    font-size: 0.75rem;
    color: var(--gray-light);
    white-space: nowrap;
}

.level-stats-mini {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.mini-stat {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    background: rgba(255,255,255,0.1);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.mini-stat:active {
    transform: scale(0.95);
}

/* ===== STATS ROW ===== */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.4rem;
}

.stat-mini {
    background: var(--dark-light);
    border-radius: var(--radius-md);
    padding: 0.5rem 0.3rem;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.05);
}

.stat-mini .stat-icon { font-size: 1rem; margin-bottom: 0.15rem; }
.stat-mini .stat-value { font-size: 1rem; font-weight: 700; color: var(--primary-light); margin-bottom: 0.05rem; }
.stat-mini .stat-label { font-size: 0.55rem; color: var(--gray-light); line-height: 1.1; }

/* ===== MODE GRID ===== */
.mode-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.mode-card {
    background: var(--dark-light);
    border-radius: var(--radius-lg);
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    cursor: pointer;
    transition: all 0.2s;
    border: 2px solid transparent;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.mode-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: opacity 0.2s;
}

.mode-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.mode-card:hover::before { opacity: 1; }
.mode-card:active { transform: scale(0.98); }

.mode-icon { font-size: 1.75rem; }
.mode-content { flex: 1; }
.mode-title { font-weight: 700; font-size: 0.9rem; margin-bottom: 0.2rem; }
.mode-desc { color: var(--gray-light); font-size: 0.75rem; }

.mode-badge {
    background: var(--primary);
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 700;
}

.mode-badge.exam { background: var(--secondary); }
.mode-arrow { font-size: 1.5rem; color: var(--gray); font-weight: 300; }

.mode-practice { border-right: 3px solid var(--primary); }
.mode-exam { border-right: 3px solid var(--secondary); }
.mode-category { border-right: 3px solid var(--warning); }
.mode-mistakes { border-right: 3px solid var(--danger); }

/* ===== BOTTOM NAV ===== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--dark-light);
    display: flex;
    justify-content: space-around;
    padding: 0.5rem 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    z-index: 100;
    backdrop-filter: blur(10px);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.15rem;
    padding: 0.4rem 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
    opacity: 0.5;
    border-radius: var(--radius-md);
}

.nav-item.active { opacity: 1; background: rgba(99, 102, 241, 0.2); }
.nav-item:active { transform: scale(0.95); }
.nav-icon { font-size: 1.3rem; }
.nav-label { font-size: 0.65rem; font-weight: 500; }

/* ===== SCREEN HEADER ===== */
.screen-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--dark-light);
    position: sticky;
    top: 0;
    z-index: 100;
}

.screen-header h2 { font-size: 1.1rem; }

.screen-content {
    padding: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== ROADMAP ===== */
.roadmap-content { padding-bottom: 100px; }
.roadmap-section { padding: 1rem 0; }

.roadmap-wrapper {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.world-card {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    border: 1px solid rgba(255,255,255,0.05);
}

.world-card h3 {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1rem;
    color: var(--gray-light);
}

.world-nodes {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.node-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.roadmap-node {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    background: var(--dark-lighter);
    border: 3px solid var(--gray);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    color: var(--gray-light);
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.roadmap-node.locked { opacity: 0.4; cursor: not-allowed; }
.roadmap-node.completed { background: var(--secondary); border-color: var(--secondary-light); color: white; }
.roadmap-node.current {
    background: var(--warning);
    border-color: white;
    color: white;
    transform: scale(1.15);
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.5);
    animation: pulse-node 2s infinite;
}

@keyframes pulse-node {
    0%, 100% { box-shadow: 0 0 20px rgba(245, 158, 11, 0.5); }
    50% { box-shadow: 0 0 30px rgba(245, 158, 11, 0.8); }
}

.node-stars { margin-top: 0.25rem; font-size: 0.7rem; }

/* ===== BUTTONS ===== */
.btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-family: var(--font-main);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1rem;
}

.btn:hover { background: var(--primary-light); transform: translateY(-1px); }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.85rem; }
.btn-large { padding: 1rem 2rem; font-size: 1.1rem; }
.btn-block { width: 100%; margin-bottom: 0.75rem; }
.btn-secondary { background: var(--dark-lighter); }
.btn-danger { background: var(--danger); }
.btn-primary { background: var(--primary); }

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

/* ===== QUIZ SCREEN - OPTIMIZED FOR MOBILE ===== */
.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--dark-light);
    position: sticky;
    top: 0;
    z-index: 100;
}

.quiz-progress-info {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.quiz-counter { color: var(--gray-light); font-size: 0.85rem; }
.quiz-progress-bar { height: 4px; background: var(--dark-lighter); }
.quiz-progress-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--secondary)); transition: width 0.3s; }

#quiz-screen .quiz-content {
    padding: 0.5rem;
    padding-bottom: 80px;
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
}

#quiz-screen .question-card {
    background: var(--dark-light);
    border-radius: var(--radius-lg);
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    border: 1px solid rgba(255,255,255,0.05);
}

#quiz-screen .question-text {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.question-image-wrap {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    display: none;
    margin-bottom: 0.5rem;
}

.question-image-wrap.visible { display: block; }

#quiz-screen .question-image-wrap img {
    max-height: 25vh;
    width: auto;
    display: block;
    margin: 0 auto;
}

.btn-zoom { position: absolute; top: 10px; left: 10px; }

#quiz-screen .answers-area {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

#quiz-screen .answer-btn {
    background: var(--dark-light);
    border: 2px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-md);
    padding: 0.6rem;
    text-align: right;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    gap: 0.75rem;
    align-items: center;
    font-family: var(--font-main);
    color: white;
    font-size: 0.9rem;
}

.answer-btn:hover { border-color: var(--primary); background: rgba(99, 102, 241, 0.1); }
.answer-btn:disabled { cursor: not-allowed; }
.answer-btn.correct { background: var(--secondary); border-color: var(--secondary); }
.answer-btn.wrong { background: var(--danger); border-color: var(--danger); }

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

.answer-text { flex: 1; }

.explanation-card {
    background: var(--dark-lighter);
    border-radius: var(--radius-md);
    padding: 1rem;
    border-right: 4px solid var(--primary);
}

.explanation-card h4 { margin-bottom: 0.5rem; color: var(--primary-light); }

.quiz-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--dark-light);
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* ===== RESULTS SCREEN ===== */
.results-content {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    text-align: center;
}

.score-circle { position: relative; margin: 2rem 0; }
.score-text { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.score-number { font-size: 3rem; font-weight: 700; color: var(--primary-light); }
.score-label { color: var(--gray-light); font-size: 0.9rem; }
.score-fill.fail { stroke: var(--danger) !important; }

.results-stats { display: flex; gap: 2rem; margin: 2rem 0; }

.result-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.result-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.result-icon.correct { background: var(--secondary); }
.result-icon.wrong { background: var(--danger); }
.result-label { color: var(--gray-light); font-size: 0.85rem; }
.result-value { font-size: 1.5rem; font-weight: 700; }

.results-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    max-width: 300px;
}

/* ===== CATEGORIES ===== */
.categories-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.category-card {
    background: var(--dark-light);
    border-radius: var(--radius-lg);
    padding: 1rem;
    display: flex;
    gap: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    border: 2px solid transparent;
}

.category-card:hover { border-color: var(--primary); }

.category-icon-wrap {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.category-details { flex: 1; }
.category-details h3 { font-size: 0.95rem; margin-bottom: 0.5rem; }

.category-progress {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.25rem;
}

.category-progress-bar {
    flex: 1;
    height: 6px;
    background: rgba(255,255,255,0.1);
    border-radius: 100px;
    overflow: hidden;
}

.category-progress-fill { height: 100%; border-radius: 100px; }
.category-percent { font-weight: 600; font-size: 0.85rem; min-width: 40px; }
.category-count { color: var(--gray-light); font-size: 0.75rem; }

/* ===== STATS SCREEN ===== */
.stats-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.stat-big {
    background: var(--dark-light);
    border-radius: var(--radius-md);
    padding: 1rem;
    text-align: center;
}

.stat-big .stat-value { font-size: 1.75rem; font-weight: 700; color: var(--primary-light); margin-bottom: 0.25rem; }
.stat-big .stat-label { color: var(--gray-light); font-size: 0.8rem; }

.chart-container {
    background: var(--dark-light);
    border-radius: var(--radius-lg);
    padding: 1rem;
    height: 250px;
    margin-bottom: 1rem;
}

/* ===== ACHIEVEMENTS ===== */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.achievement-card {
    background: var(--dark-light);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    text-align: center;
    border: 2px solid var(--secondary);
}

.achievement-card.locked { opacity: 0.4; border-color: var(--gray); }
.achievement-card .achievement-icon { font-size: 2.5rem; margin-bottom: 0.75rem; }
.achievement-card h4 { margin-bottom: 0.25rem; font-size: 0.9rem; }
.achievement-card p { color: var(--gray-light); font-size: 0.75rem; }

/* ===== SETTINGS ===== */
.settings-section { margin-bottom: 1.5rem; }
.settings-section h3 { margin-bottom: 0.75rem; font-size: 0.95rem; color: var(--gray-light); }

.setting-item {
    background: var(--dark-light);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.switch { position: relative; display: inline-block; width: 48px; height: 26px; }
.switch input { opacity: 0; width: 0; height: 0; }

.slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background-color: var(--gray);
    transition: 0.3s;
    border-radius: 100px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}

input:checked + .slider { background-color: var(--primary); }
input:checked + .slider:before { transform: translateX(22px); }

.settings-footer { text-align: center; color: var(--gray-light); margin-top: 2rem; font-size: 0.8rem; }
.settings-footer p { margin-bottom: 0.25rem; }

/* ===== TOAST ===== */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    background: var(--dark-light);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    max-width: 280px;
    animation: slideIn 0.3s ease;
    border-right: 4px solid var(--primary);
    font-size: 0.9rem;
}

.toast.success { border-right-color: var(--secondary); }
.toast.error { border-right-color: var(--danger); }
.toast.warning { border-right-color: var(--warning); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ===== FEEDBACK OVERLAY ===== */
.feedback-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    backdrop-filter: blur(5px);
}

.feedback-overlay.show { opacity: 1; }

.feedback-icon {
    font-size: 5rem;
    margin-bottom: 1rem;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform: scale(0.5);
}

.feedback-overlay.show .feedback-icon { transform: scale(1); }
.feedback-text { font-size: 1.75rem; font-weight: 700; margin-bottom: 0.5rem; }
.feedback-overlay.correct .feedback-icon { color: var(--secondary); filter: drop-shadow(0 0 20px rgba(16, 185, 129, 0.4)); }
.feedback-overlay.correct .feedback-text { color: var(--secondary); }
.feedback-overlay.wrong .feedback-icon { color: var(--danger); filter: drop-shadow(0 0 20px rgba(239, 68, 68, 0.4)); }
.feedback-overlay.wrong .feedback-text { color: var(--danger); }
.feedback-xp { font-size: 1.25rem; font-weight: 600; color: #fbbf24; }

/* ===== MODAL ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    inset: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(8px);
    align-items: center;
    justify-content: center;
}

.modal.active { display: flex; }

.modal-content {
    background: var(--dark-light);
    padding: 2rem;
    width: 90%;
    max-width: 360px;
    border-radius: var(--radius-lg);
    position: relative;
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: var(--shadow-lg);
}

.close {
    position: absolute;
    left: 15px;
    top: 12px;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--gray-light);
    transition: color 0.2s;
}

.close:hover { color: white; }

/* ===== READINESS CARD (Home) ===== */
.readiness-card {
    background: linear-gradient(135deg, var(--dark-light) 0%, var(--dark-lighter) 100%);
    border-radius: var(--radius-lg);
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: all 0.3s;
    border: 1px solid rgba(255,255,255,0.05);
    position: relative;
    overflow: hidden;
}

.readiness-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--danger), var(--warning), var(--secondary));
    opacity: 0.8;
}

.readiness-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); border-color: var(--primary); }

.readiness-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.5rem; }
.readiness-title { font-weight: 700; font-size: 0.95rem; }
.readiness-percent { font-size: 1.5rem; font-weight: 800; color: var(--primary-light); }

.readiness-bar {
    height: 8px;
    background: rgba(255,255,255,0.1);
    border-radius: 100px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.readiness-fill {
    height: 100%;
    border-radius: 100px;
    transition: all 0.5s ease;
    background: linear-gradient(90deg, var(--danger), var(--warning));
    width: 0%;
}

.readiness-fill.low { background: linear-gradient(90deg, var(--danger), var(--danger-light)); }
.readiness-fill.medium { background: linear-gradient(90deg, var(--warning), #fbbf24); }
.readiness-fill.high { background: linear-gradient(90deg, var(--secondary), var(--secondary-light)); }
.readiness-fill.ready { background: linear-gradient(90deg, var(--primary), var(--secondary)); }

.readiness-status { font-weight: 600; font-size: 0.85rem; margin-bottom: 0.25rem; }
.readiness-status.low { color: var(--danger); }
.readiness-status.medium { color: var(--warning); }
.readiness-status.high { color: var(--secondary); }
.readiness-status.ready { color: var(--primary-light); }

.readiness-tip { font-size: 0.75rem; color: var(--gray-light); }

/* ===== READINESS FULL CARD (Stats Screen) ===== */
.readiness-full-card {
    background: linear-gradient(135deg, var(--dark-light) 0%, var(--dark-lighter) 100%);
    border-radius: var(--radius-xl);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255,255,255,0.08);
    position: relative;
    overflow: hidden;
}

.readiness-full-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--danger), var(--warning), var(--secondary), var(--primary));
}

.readiness-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 2rem;
    color: var(--gray-light);
}

.readiness-full-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }

.readiness-score-circle { width: 80px; height: 80px; position: relative; flex-shrink: 0; }
.readiness-score-circle svg { transform: rotate(-90deg); }
.readiness-score-circle .score-text { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); text-align: center; }
.readiness-score-circle .score-num { font-size: 1.5rem; font-weight: 800; line-height: 1; }
.readiness-score-circle .score-label { font-size: 0.6rem; color: var(--gray-light); }

.readiness-info { flex: 1; }
.readiness-info h3 { font-size: 1.1rem; margin-bottom: 0.25rem; }
.readiness-info .pass-chance { font-size: 0.85rem; color: var(--gray-light); margin-bottom: 0.5rem; }
.readiness-info .pass-chance strong { color: var(--primary-light); font-size: 1rem; }

.readiness-trend { font-size: 0.8rem; padding: 0.2rem 0.5rem; border-radius: var(--radius-sm); background: rgba(255,255,255,0.1); display: inline-block; }
.readiness-trend.improving { background: rgba(16, 185, 129, 0.2); color: var(--secondary); }
.readiness-trend.declining { background: rgba(239, 68, 68, 0.2); color: var(--danger); }
.readiness-trend.stable { background: rgba(255,255,255,0.1); color: var(--gray-light); }

.readiness-categories-mini { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0; }

.cat-tag { display: flex; align-items: center; gap: 0.3rem; padding: 0.3rem 0.6rem; border-radius: var(--radius-sm); font-size: 0.75rem; font-weight: 600; }
.cat-tag.weak { background: rgba(239, 68, 68, 0.15); color: var(--danger); border: 1px solid rgba(239, 68, 68, 0.3); }
.cat-tag.strong { background: rgba(16, 185, 129, 0.15); color: var(--secondary); border: 1px solid rgba(16, 185, 129, 0.3); }

.readiness-recommendations { background: var(--dark); border-radius: var(--radius-md); padding: 0.75rem; margin-top: 1rem; }
.rec-item { display: flex; align-items: flex-start; gap: 0.6rem; padding: 0.5rem 0; border-bottom: 1px solid rgba(255,255,255,0.05); font-size: 0.85rem; }
.rec-item:last-child { border-bottom: none; }
.rec-icon { font-size: 1.1rem; flex-shrink: 0; }
.rec-content { flex: 1; }
.rec-title { font-weight: 600; margin-bottom: 0.1rem; }
.rec-text { color: var(--gray-light); font-size: 0.8rem; }
.readiness-action-btn { width: 100%; margin-top: 1rem; padding: 0.75rem; font-size: 0.95rem; }

.score-stroke-red { stroke: var(--danger); }
.score-stroke-yellow { stroke: var(--warning); }
.score-stroke-blue { stroke: var(--primary); }
.score-stroke-green { stroke: var(--secondary); }

/* ===== READINESS MODAL ===== */
.readiness-modal-content { max-width: 400px; max-height: 85vh; overflow-y: auto; }
.readiness-modal-header { text-align: center; padding: 1.5rem 0; border-bottom: 1px solid rgba(255,255,255,0.1); margin-bottom: 1rem; }

.readiness-big-score {
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.readiness-big-label { font-size: 1.1rem; color: var(--gray-light); }

.readiness-prediction {
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.readiness-prediction strong { font-size: 1.2rem; color: var(--primary-light); }
.readiness-categories { margin-bottom: 1rem; }
.readiness-cat-item { display: flex; align-items: center; gap: 0.75rem; padding: 0.6rem 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
.readiness-cat-item:last-child { border-bottom: none; }
.readiness-cat-icon { font-size: 1.25rem; width: 30px; text-align: center; }
.readiness-cat-name { flex: 1; font-size: 0.85rem; }
.readiness-cat-status { font-weight: 700; font-size: 0.8rem; padding: 0.2rem 0.5rem; border-radius: var(--radius-sm); }
.readiness-cat-status.excellent { background: var(--secondary); color: white; }
.readiness-cat-status.good { background: rgba(16, 185, 129, 0.2); color: var(--secondary); }
.readiness-cat-status.practice { background: rgba(245, 158, 11, 0.2); color: var(--warning); }
.readiness-cat-status.weak { background: rgba(239, 68, 68, 0.2); color: var(--danger); }

.readiness-recommendation {
    background: var(--dark-lighter);
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    line-height: 1.5;
    border-right: 3px solid var(--primary);
}

.readiness-recommendation strong { color: var(--primary-light); }

/* ===== RESPONSIVE ===== */
@media (max-width: 380px) {
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .stat-mini .stat-label { font-size: 0.55rem; }
    .mode-title { font-size: 0.8rem; }
    .mode-desc { font-size: 0.65rem; }
}

@media (min-height: 800px) {
    .home-compact { justify-content: flex-start; gap: 1rem; }
    .mode-grid { flex: none; }
}


/* =========================================
   ✨ תוספות לאפקטים ויזואליים (Gamification)
   הוסף את זה בסוף style.css
   ========================================= */

/* 1. אנימציית XP צף (עולה למעלה ונעלם) */
.floating-xp {
    position: fixed;
    font-family: 'Heebo', sans-serif;
    font-size: 2.5rem;
    font-weight: 900;
    color: #fbbf24; /* צבע זהב */
    text-shadow: 0 4px 10px rgba(0,0,0,0.5);
    pointer-events: none; /* כדי לא להפריע ללחיצות */
    z-index: 10000;
    animation: floatUp 1.2s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes floatUp {
    0% { transform: translate(-50%, -50%) scale(0.5) rotate(-10deg); opacity: 0; }
    20% { transform: translate(-50%, -50%) scale(1.2) rotate(0deg); opacity: 1; }
    100% { transform: translate(-50%, -150px) scale(1); opacity: 0; }
}

/* 2. אפקט V ענק וזוהר במרכז המסך */
.big-v-effect {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 10rem;
    color: #10b981; /* ירוק */
    z-index: 9999;
    opacity: 0;
    animation: popInBig 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    filter: drop-shadow(0 0 30px rgba(16,185,129,0.6));
}

@keyframes popInBig {
    0% { transform: translate(-50%, -50%) scale(0); opacity: 0; }
    40% { transform: translate(-50%, -50%) scale(1.2); opacity: 1; }
    80% { transform: translate(-50%, -50%) scale(0.9); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(1.5); opacity: 0; }
}

/* שיפור כפתור התשובה - אפקט לחיצה */
.answer-btn:active {
    transform: scale(0.95) !important;
}