/* ========================================
   PHONE MOCKUP APP PROTOTYPE - BRAVOO
   Animations réalistes sur 15s loop (5 écrans × 3s)
   ======================================== */

/* ========================================
   BASE & STRUCTURE
   ======================================== */
.phone-content {
    position: relative;
    height: 100%;
    overflow: hidden;
}

.screen-state {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0;
    padding: 14px;
    display: flex;
    flex-direction: column;
    transition: opacity 0.6s ease;
}

/* ========================================
   SÉQUENCE GLOBALE (15s loop)
   ======================================== */

/* Écran 1 : Accueil (0-3s) */
.screen-home {
    animation: showScreen1 15s infinite;
}

@keyframes showScreen1 {
    0%, 18% { opacity: 1; }
    20%, 100% { opacity: 0; }
}

/* Écran 2 : Chat IA (3-6s) */
.screen-chat {
    animation: showScreen2 15s infinite;
}

@keyframes showScreen2 {
    0%, 18% { opacity: 0; }
    20%, 38% { opacity: 1; }
    40%, 100% { opacity: 0; }
}

/* Écran 3 : Quiz (6-9s) */
.screen-quiz {
    animation: showScreen3 15s infinite;
}

@keyframes showScreen3 {
    0%, 38% { opacity: 0; }
    40%, 58% { opacity: 1; }
    60%, 100% { opacity: 0; }
}

/* Écran 4 : Flashcard (9-12s) */
.screen-flashcard {
    animation: showScreen4 15s infinite;
}

@keyframes showScreen4 {
    0%, 58% { opacity: 0; }
    60%, 78% { opacity: 1; }
    80%, 100% { opacity: 0; }
}

/* Écran 5 : Résultats (12-15s) */
.screen-results {
    animation: showScreen5 15s infinite;
}

@keyframes showScreen5 {
    0%, 78% { opacity: 0; }
    80%, 98% { opacity: 1; }
    100% { opacity: 0; }
}

/* ========================================
   ÉCRAN 1 : ACCUEIL PERSONNALISÉ
   ======================================== */

/* Header app */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    animation: fadeInDown 0.5s ease-out;
}

.app-logo {
    font-size: 14px;
    font-weight: 800;
    background: linear-gradient(135deg, #1DB954, #16a34a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.app-profile-icon {
    width: 28px;
    height: 28px;
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(8px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

/* Greeting */
.greeting-text {
    font-size: 16px;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 4px;
    animation: fadeInUp 0.6s 0.2s ease-out backwards;
}

.section-title {
    font-size: 11px;
    color: #B3B3B3;
    font-weight: 600;
    margin-bottom: 12px;
    animation: fadeIn 0.5s 0.3s ease-out backwards;
}

/* Subject cards (stagger slide-in) */
.subject-cards {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: auto;
}

.subject-card {
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(12px);
    border-radius: 12px;
    padding: 10px 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.06);
    animation: slideInFromBottom 0.5s ease-out backwards;
}

.subject-card.card-1 { animation-delay: 0.4s; }
.subject-card.card-2 { animation-delay: 0.55s; }
.subject-card.card-3 { animation-delay: 0.7s; }

@keyframes slideInFromBottom {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.subject-header {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
}

.subject-emoji {
    font-size: 14px;
}

.subject-name {
    font-size: 12px;
    font-weight: 700;
    color: #FFFFFF;
}

.subject-topic {
    font-size: 11px;
    color: #B3B3B3;
    margin-bottom: 6px;
}

.progress-wrapper {
    height: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #1DB954, #16a34a);
    border-radius: 4px;
    transition: width 0.8s ease-out;
}

/* Streak badge */
.streak-badge {
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(12px);
    border-radius: 20px;
    padding: 8px 14px;
    font-size: 11px;
    font-weight: 700;
    color: #FFFFFF;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.06);
    animation: fadeIn 0.5s 0.9s ease-out backwards;
}

/* ========================================
   ÉCRAN 2 : COACHING IA (CHAT)
   ======================================== */

.chat-header {
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(12px);
    border-radius: 12px;
    padding: 10px 12px;
    font-size: 12px;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 14px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.06);
    animation: fadeInDown 0.4s ease-out;
}

.chat-messages {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.chat-bubble {
    border-radius: 14px;
    padding: 10px 12px;
    max-width: 85%;
    animation: bubbleAppear 0.5s ease-out backwards;
}

.ai-bubble {
    background: #1DB954;
    color: white;
    align-self: flex-start;
}

.user-bubble {
    background: #2A2A2A;
    backdrop-filter: blur(8px);
    color: #FFFFFF;
    align-self: flex-end;
    border: 1px solid rgba(255,255,255,0.06);
}

.bubble-content {
    font-size: 11px;
    line-height: 1.4;
}

.bubble-1 { animation-delay: 0.3s; }
.bubble-2 { animation-delay: 1.2s; }
.bubble-3 { animation-delay: 1.8s; }

@keyframes bubbleAppear {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Triangle illustration */
.chat-triangle-illus {
    display: flex;
    justify-content: center;
    margin: 8px 0;
    animation: fadeIn 0.6s 0.8s ease-out backwards;
}

/* Typing indicator */
.chat-typing {
    background: #2A2A2A;
    backdrop-filter: blur(8px);
    border-radius: 14px;
    padding: 10px 14px;
    align-self: flex-start;
    display: flex;
    gap: 4px;
    max-width: 60px;
    border: 1px solid rgba(255,255,255,0.06);
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: #9ca3af;
    border-radius: 50%;
    animation: typingDot 1.4s infinite;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingDot {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.4;
    }
    30% {
        transform: translateY(-6px);
        opacity: 1;
    }
}

/* ========================================
   ÉCRAN 3 : QUIZ INTERACTIF
   ======================================== */

.quiz-progress-header {
    margin-bottom: 14px;
    animation: fadeInDown 0.4s ease-out;
}

.quiz-count {
    font-size: 11px;
    font-weight: 700;
    color: #B3B3B3;
    display: block;
    margin-bottom: 6px;
}

.quiz-progress-bar {
    height: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    overflow: hidden;
}

.quiz-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #1DB954, #16a34a);
    width: 30%;
    border-radius: 4px;
}

.quiz-question-text {
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(12px);
    border-radius: 12px;
    padding: 12px;
    font-size: 12px;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 14px;
    line-height: 1.4;
    border: 1px solid rgba(255,255,255,0.06);
    animation: fadeIn 0.5s 0.2s ease-out backwards;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 14px;
}

.quiz-option {
    background: #242424;
    backdrop-filter: blur(8px);
    border-radius: 10px;
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 600;
    color: #FFFFFF;
    border: 2px solid rgba(255,255,255,0.06);
    cursor: pointer;
    animation: slideInOption 0.4s ease-out backwards;
}

.quiz-option.opt-1 { animation-delay: 0.4s; }
.quiz-option.opt-2 { animation-delay: 0.5s; }
.quiz-option.opt-3 { animation-delay: 0.6s; }
.quiz-option.opt-4 { animation-delay: 0.7s; }

@keyframes slideInOption {
    from {
        opacity: 0;
        transform: translateX(-15px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Bonne réponse s'illumine */
.quiz-option.correct {
    background: rgba(29,185,84,0.2);
    border-color: #1DB954;
    color: #FFFFFF;
    animation: 
        slideInOption 0.4s 0.4s ease-out backwards,
        correctGlow 0.8s 1.2s ease-out forwards;
}

@keyframes correctGlow {
    0% {
        box-shadow: 0 0 0 rgba(29,185,84,0);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 16px rgba(29,185,84,0.5);
        transform: scale(1.02);
    }
    100% {
        box-shadow: 0 0 8px rgba(29,185,84,0.3);
        transform: scale(1);
    }
}

.quiz-feedback {
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(12px);
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 11px;
    font-weight: 600;
    color: #1DB954;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.06);
    animation: fadeIn 0.5s 1.4s ease-out backwards;
}

/* ========================================
   ÉCRAN 4 : FLASHCARD (FLIP 3D)
   ======================================== */

.flashcard-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1000px;
    margin-bottom: 14px;
}

.flashcard {
    width: 100%;
    height: 200px;
    position: relative;
    transform-style: preserve-3d;
    animation: cardFlip 3s 0.5s ease-in-out infinite;
}

@keyframes cardFlip {
    0%, 40% {
        transform: rotateY(0deg);
    }
    50%, 90% {
        transform: rotateY(180deg);
    }
    100% {
        transform: rotateY(180deg);
    }
}

.flashcard-front,
.flashcard-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    background: #242424;
    backdrop-filter: blur(12px);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.06);
}

.flashcard-back {
    transform: rotateY(180deg);
    background: #1DB954;
}

.flashcard-question,
.flashcard-answer {
    font-size: 13px;
    font-weight: 600;
    color: #FFFFFF;
    text-align: center;
    line-height: 1.5;
}

.flashcard-actions {
    display: flex;
    gap: 6px;
    justify-content: space-between;
    animation: fadeIn 0.5s 0.3s ease-out backwards;
}

.fc-btn {
    flex: 1;
    background: #242424;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 10px;
    padding: 10px 6px;
    font-size: 10px;
    font-weight: 600;
    color: #FFFFFF;
    cursor: pointer;
    transition: transform 0.2s;
}

.fc-btn:hover {
    transform: scale(1.02);
}

.fc-btn.fc-good {
    background: rgba(29,185,84,0.2);
    color: #1DB954;
    border-color: #1DB954;
}

/* ========================================
   ÉCRAN 5 : RÉSULTATS / PROGRESSION
   ======================================== */

.results-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
}

.results-emoji {
    font-size: 52px;
    animation: emojiPop 0.7s ease-out;
    margin-bottom: 10px;
}

@keyframes emojiPop {
    0% {
        transform: scale(0) rotate(-30deg);
        opacity: 0;
    }
    50% {
        transform: scale(1.15) rotate(10deg);
    }
    100% {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
}

.results-title {
    font-size: 18px;
    font-weight: 800;
    color: #FFFFFF;
    margin-bottom: 12px;
    animation: fadeInUp 0.5s 0.2s ease-out backwards;
}

.xp-badge {
    background: #1DB954;
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 16px;
    font-weight: 800;
    margin-bottom: 16px;
    box-shadow: 0 4px 12px rgba(29,185,84,0.4);
    animation: xpBounce 0.6s 0.4s cubic-bezier(0.68, -0.55, 0.27, 1.55) backwards;
}

@keyframes xpBounce {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.results-stats {
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(12px);
    border-radius: 14px;
    padding: 14px;
    width: 100%;
    margin-bottom: 14px;
    border: 1px solid rgba(255,255,255,0.06);
    animation: fadeIn 0.5s 0.6s ease-out backwards;
}

.stat-line {
    font-size: 11px;
    font-weight: 600;
    color: #FFFFFF;
    margin-bottom: 6px;
}

.stat-line.streak {
    margin-top: 6px;
    margin-bottom: 0;
    color: #F5C518;
}

.level-progress-bar {
    height: 6px;
    background: rgba(255,255,255,0.1);
    border-radius: 6px;
    overflow: hidden;
    margin: 8px 0;
}

.level-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #1DB954, #16a34a);
    border-radius: 6px;
    width: 0%;
    animation: progressBarFill 1s 0.9s ease-out forwards;
}

@keyframes progressBarFill {
    from { width: 70%; }
    to { width: 85%; }
}

.continue-btn {
    background: #1DB954;
    color: white;
    border: none;
    border-radius: 12px;
    padding: 12px 24px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(29,185,84,0.3);
    animation: fadeIn 0.5s 1.2s ease-out backwards;
    transition: transform 0.2s;
}

.continue-btn:hover {
    transform: scale(1.03);
}

/* ========================================
   UTILITAIRES D'ANIMATION
   ======================================== */

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

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

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

/* ========================================
   RESPONSIVE (très petits écrans)
   ======================================== */
@media (max-width: 380px) {
    .greeting-text { font-size: 14px; }
    .subject-name { font-size: 11px; }
    .subject-topic { font-size: 10px; }
    .bubble-content { font-size: 10px; }
    .quiz-question-text { font-size: 11px; }
    .quiz-option { font-size: 12px; }
    .flashcard-question, .flashcard-answer { font-size: 12px; }
    .results-title { font-size: 16px; }
    .xp-badge { font-size: 14px; }
}