/* ========================================
   Les Professions - Teen Style (French)
   ======================================== */

:root {
    --primary: #6C5CE7;
    --primary-light: #A29BFE;
    --primary-dark: #5A4BD1;
    --secondary: #00B894;
    --secondary-light: #55EFC4;
    --accent: #FDCB6E;
    --danger: #FF6B6B;
    --success: #00B894;
    --pink: #FD79A8;
    --orange: #FDCB6E;
    --blue: #74B9FF;
    --purple: #A29BFE;
    --text: #2D3436;
    --text-light: #636E72;
    --bg: linear-gradient(135deg, #002395 0%, #ED2939 100%);
    --card: #FFFFFF;
    --shadow: 0 10px 40px rgba(0,0,0,0.15);
    --shadow-hover: 0 20px 60px rgba(0,0,0,0.2);
    --radius: 20px;
    --radius-sm: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

#app {
    max-width: 480px;
    margin: 0 auto;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    font-size: 28px;
    animation: bounce 2s ease infinite;
}

.logo-text {
    font-size: 18px;
    font-weight: 800;
    background: linear-gradient(135deg, #002395, #ED2939);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.progress-info {
    display: flex;
    gap: 12px;
    font-weight: 700;
    font-size: 14px;
}

#streak-display {
    color: var(--orange);
}

.screen {
    display: none;
    padding: 20px;
    min-height: calc(100vh - 70px);
    animation: slideIn 0.4s ease;
}

.screen.active {
    display: flex;
    flex-direction: column;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(5deg); }
}

.gradient-text {
    background: linear-gradient(135deg, #002395, #ED2939, var(--accent));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s ease infinite;
}

.screen-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.screen-header h2 {
    flex: 1;
    font-size: 20px;
    font-weight: 700;
}

.progress-bar {
    flex: 1;
    height: 10px;
    background: rgba(255,255,255,0.3);
    border-radius: 5px;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success), var(--secondary-light));
    border-radius: 5px;
    transition: width 0.5s ease;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: shimmer 2s ease infinite;
}

.btn-primary {
    width: 100%;
    padding: 18px 36px;
    font-size: 18px;
    font-weight: 800;
    color: white;
    background: linear-gradient(135deg, #002395, #ED2939);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 8px 30px rgba(0, 35, 149, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 40px rgba(0, 35, 149, 0.5);
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
}

.btn-primary.pulse {
    animation: pulse 2s ease infinite;
}

.btn-arrow {
    font-size: 20px;
    transition: transform 0.3s ease;
}

.btn-primary:hover .btn-arrow {
    transform: translateX(5px);
}

.btn-secondary {
    width: 100%;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    background: rgba(255,255,255,0.95);
    border: 2px solid var(--primary);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(108, 92, 231, 0.3);
}

.btn-back {
    width: 44px;
    height: 44px;
    font-size: 24px;
    background: rgba(255,255,255,0.95);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.btn-back:hover {
    background: var(--primary);
    color: white;
    transform: scale(1.1);
}

.welcome-card {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius);
    padding: 40px 24px;
    text-align: center;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.welcome-emoji {
    font-size: 80px;
    animation: float 3s ease infinite;
    margin-bottom: 20px;
}

.welcome-card h1 {
    font-size: 42px;
    margin-bottom: 8px;
}

.welcome-card h2 {
    font-size: 26px;
    margin-bottom: 12px;
}

.subtitle {
    color: var(--text-light);
    font-size: 16px;
    margin-bottom: 32px;
}

.welcome-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 32px;
}

.feature-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 8px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 36px;
    margin-bottom: 8px;
}

.feature-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--primary);
}

.feature-desc {
    font-size: 11px;
    color: var(--text-light);
}

.tip-text {
    margin-top: 20px;
    font-size: 13px;
    color: var(--text-light);
    font-style: italic;
}

.flashcard-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 20px 0;
    perspective: 1500px;
}

.flashcard {
    width: 300px;
    height: 380px;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

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

.flashcard-front,
.flashcard-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: var(--radius);
    padding: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    box-shadow: var(--shadow);
}

.flashcard-front {
    background: linear-gradient(135deg, #002395, #ED2939);
    color: white;
}

.flashcard-emoji {
    font-size: 80px;
    margin-bottom: 20px;
    animation: float 3s ease infinite;
}

.flashcard-front h3 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.btn-listen {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: rgba(255,255,255,0.25);
    border: 2px solid rgba(255,255,255,0.5);
    border-radius: 30px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 16px;
}

.btn-listen:hover {
    background: rgba(255,255,255,0.4);
    transform: scale(1.05);
}

.btn-listen:active {
    transform: scale(0.95);
}

.listen-icon {
    font-size: 20px;
}

.card-hint {
    font-size: 13px;
    opacity: 0.8;
    font-style: italic;
}

.flashcard-back {
    background: white;
    color: var(--text);
    transform: rotateY(180deg);
}

.flashcard-emoji-small {
    font-size: 50px;
    margin-bottom: 16px;
}

.flashcard-back h3 {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 16px;
}

.card-example {
    font-size: 15px;
    color: var(--text-light);
    font-style: italic;
    margin-bottom: 8px;
    padding: 12px;
    background: #f8f9fa;
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--primary);
}

.card-example-en {
    font-size: 13px;
    color: var(--primary);
    font-style: normal;
    margin-bottom: 16px;
    padding: 8px 12px;
    background: linear-gradient(135deg, #f0edff, #e8e4ff);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--pink);
}

.card-tips {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.tip {
    padding: 6px 12px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.flashcard-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin: 20px 0;
}

.btn-control {
    width: 52px;
    height: 52px;
    font-size: 24px;
    background: rgba(255,255,255,0.95);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.btn-control:hover {
    background: var(--primary);
    color: white;
    transform: scale(1.1);
}

.card-counter {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

#card-counter {
    font-size: 18px;
    font-weight: 700;
    color: white;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
}

.difficulty-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    transition: var(--transition);
}

.dot.filled {
    background: var(--success);
    transform: scale(1.2);
}

.flashcard-actions {
    display: flex;
    gap: 16px;
    margin: 20px 0;
}

.btn-difficult,
.btn-know {
    flex: 1;
    padding: 14px 20px;
    font-size: 15px;
    font-weight: 700;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-difficult {
    background: linear-gradient(135deg, #fff5f5, #ffe0e0);
    color: var(--danger);
    border: 2px solid var(--danger);
}

.btn-difficult:hover {
    background: var(--danger);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(255, 107, 107, 0.4);
}

.btn-know {
    background: linear-gradient(135deg, #f0fff4, #d4edda);
    color: var(--success);
    border: 2px solid var(--success);
}

.btn-know:hover {
    background: var(--success);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 184, 148, 0.4);
}

.quiz-container {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.quiz-question {
    text-align: center;
    margin-bottom: 30px;
    position: relative;
}

.question-number {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, #002395, #ED2939);
    color: white;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 16px;
}

.question-text {
    font-size: 22px;
    font-weight: 700;
    line-height: 1.4;
}

.quiz-options {
    display: grid;
    gap: 12px;
}

.quiz-option {
    width: 100%;
    padding: 18px 24px;
    font-size: 16px;
    font-weight: 600;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border: 3px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    position: relative;
    overflow: hidden;
}

.quiz-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.quiz-option:hover {
    border-color: var(--primary);
    background: linear-gradient(135deg, #f0edff, #e8e4ff);
    transform: translateX(8px);
}

.quiz-option:hover::before {
    transform: scaleY(1);
}

.quiz-option.correct {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    border-color: var(--success);
    color: #155724;
}

.quiz-option.correct::before {
    background: var(--success);
    transform: scaleY(1);
}

.quiz-option.incorrect {
    background: linear-gradient(135deg, #ffe0e0, #ffcdd2);
    border-color: var(--danger);
    color: #721c24;
}

.quiz-option.incorrect::before {
    background: var(--danger);
    transform: scaleY(1);
}

.quiz-option:disabled {
    cursor: not-allowed;
    opacity: 0.8;
}

.quiz-feedback {
    margin-top: 20px;
    padding: 16px 24px;
    border-radius: var(--radius-sm);
    text-align: center;
    font-weight: 700;
    display: none;
    align-items: center;
    justify-content: center;
    gap: 12px;
    animation: slideIn 0.3s ease;
}

.quiz-feedback.show {
    display: flex;
}

.quiz-feedback.correct {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    color: #155724;
}

.quiz-feedback.incorrect {
    background: linear-gradient(135deg, #ffe0e0, #ffcdd2);
    color: #721c24;
}

.feedback-icon {
    font-size: 24px;
}

.guess-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.clue-card {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius);
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.clue-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #002395, #ED2939, var(--orange));
}

.clue-emoji {
    font-size: 72px;
    margin-bottom: 20px;
    animation: float 3s ease infinite;
}

.clue-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.clue-hint {
    font-size: 15px;
    color: var(--text-light);
    font-style: italic;
}

.btn-listen-clue {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding: 10px 20px;
    background: linear-gradient(135deg, #002395, #ED2939);
    border: none;
    border-radius: 25px;
    color: white;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-listen-clue:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 35, 149, 0.4);
}

.guess-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.guess-option {
    padding: 18px 16px;
    font-size: 15px;
    font-weight: 700;
    background: rgba(255,255,255,0.95);
    border: 3px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.guess-option:hover {
    border-color: var(--primary);
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 35px rgba(108, 92, 231, 0.3);
}

.guess-option.correct {
    background: linear-gradient(135deg, var(--success), var(--secondary-light));
    border-color: var(--success);
    color: white;
    animation: pulse 0.5s ease;
}

.guess-option.incorrect {
    background: linear-gradient(135deg, var(--danger), #ff8787);
    border-color: var(--danger);
    color: white;
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.guess-score {
    display: flex;
    justify-content: center;
    gap: 30px;
    padding: 16px;
    background: rgba(255,255,255,0.9);
    border-radius: var(--radius-sm);
}

.score-item {
    font-size: 18px;
    font-weight: 700;
}

.summary-card {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius);
    padding: 40px 24px;
    text-align: center;
    box-shadow: var(--shadow);
}

.summary-emoji {
    font-size: 100px;
    margin-bottom: 20px;
    animation: float 3s ease infinite;
}

.summary-card h1 {
    font-size: 36px;
    margin-bottom: 8px;
}

.summary-card h2 {
    font-size: 22px;
    color: var(--text-light);
    margin-bottom: 30px;
}

.summary-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    padding: 20px 12px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: var(--radius-sm);
}

.stat-value {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    font-size: 12px;
    color: var(--text-light);
    font-weight: 600;
}

.progress-display {
    margin-bottom: 32px;
    text-align: left;
}

.progress-display h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    text-align: center;
}

.progress-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.progress-label {
    width: 100px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-light);
}

.progress-bar-large {
    flex: 1;
    height: 12px;
    background: #e9ecef;
    border-radius: 6px;
    overflow: hidden;
}

.progress-fill-large {
    height: 100%;
    background: linear-gradient(90deg, #002395, #ED2939);
    border-radius: 6px;
    transition: width 0.5s ease;
}

.progress-percent {
    width: 40px;
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    text-align: right;
}

.summary-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer {
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    background: rgba(255,255,255,0.1);
    border-top: 1px solid rgba(255,255,255,0.2);
    color: rgba(255,255,255,0.8);
    font-size: 13px;
    line-height: 1.5;
}

.footer-text {
    margin: 0;
}

.tm {
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@media (max-width: 600px) {
    .footer-text {
        font-size: 11px;
    }
}

@media (max-width: 400px) {
    .welcome-features {
        grid-template-columns: 1fr;
    }

    .flashcard {
        width: 280px;
        height: 360px;
    }

    .guess-options {
        grid-template-columns: 1fr;
    }

    .summary-stats {
        grid-template-columns: 1fr;
    }
}