/* ========================================
   LANORTRAD READER v3.0
   Design mobile-first amélioré
   ======================================== */

/* ========================================
   VARIABLES CSS
   ======================================== */
:root {
    --reader-bg: rgba(17, 24, 39, 0.95);
    --reader-border: rgba(99, 102, 241, 0.3);
    --reader-accent: #6366f1;
    --reader-accent-light: #818cf8;
    --reader-text: #e5e7eb;
    --reader-text-muted: #9CA3AF;
}

/* ========================================
   CONTRÔLES DU LECTEUR - BARRE FIXE
   ======================================== */
.reader-top-bar {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    z-index: 40;
    background: var(--reader-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--reader-border);
    padding: 0.75rem 1rem;
    transition: transform 0.3s ease;
}

.reader-top-bar-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: flex-end; /* ✅ Alignement à droite */
    gap: 1rem;
}

/* ========================================
   SÉLECTEUR DE CHAPITRE - MASQUÉ EN MODE PAGE
   ======================================== */
.chapter-select-wrapper {
    position: relative;
    flex: 1;
    max-width: 200px;
    display: none; /* ✅ Masqué par défaut, montré uniquement si nécessaire */
}

.chapter-select {
    width: 100%;
    padding: 0.625rem 2.5rem 0.625rem 1rem;
    background: linear-gradient(135deg, rgba(31, 41, 55, 0.9), rgba(17, 24, 39, 0.9));
    border: 1px solid var(--reader-border);
    border-radius: 12px;
    color: var(--reader-text);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    transition: all 0.2s ease;
}

.chapter-select:focus {
    outline: none;
    border-color: var(--reader-accent);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.chapter-select-wrapper::after {
    content: '';
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid var(--reader-accent-light);
    pointer-events: none;
}

/* ========================================
   SÉLECTEUR DE MODE - COMPACT & ÉLÉGANT
   ======================================== */
.reader-mode-selector {
    display: flex;
    gap: 0.25rem;
    background: rgba(31, 41, 55, 0.6);
    padding: 0.25rem;
    border-radius: 10px;
    border: 1px solid rgba(99, 102, 241, 0.15);
    margin-left: auto; /* ✅ Force l'alignement à droite */
}

.mode-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--reader-text-muted);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.mode-btn svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.mode-btn span {
    display: none;
}

.mode-btn:hover {
    color: var(--reader-text);
    background: rgba(99, 102, 241, 0.1);
}

.mode-btn.active {
    color: white;
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.4);
}

.mode-btn.shortcuts-btn {
    padding: 0.5rem;
}

/* Desktop: afficher les labels */
@media (min-width: 640px) {
    .mode-btn span {
        display: inline;
    }
    
    .mode-btn {
        padding: 0.5rem 1rem;
    }
}

/* ========================================
   CONTAINER DU LECTEUR
   ======================================== */
.reader-container {
    padding-top: 140px; /* Espace pour navbar + contrôles */
    padding-bottom: 100px; /* Espace pour les contrôles du bas */
    min-height: 100vh;
}

/* ========================================
   MODE DÉFILEMENT
   ======================================== */
.scroll-mode-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    padding: 0;
}

.scroll-mode-container img {
    width: 100%;
    max-width: 900px;
    height: auto;
    display: block;
    margin: 0 auto;
}

.scroll-mode-container.hidden {
    display: none;
}

/* ========================================
   MODE PAGE - SANS FLÈCHES SUPERPOSÉES
   ======================================== */
.page-mode-container {
    display: none;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 1rem;
    gap: 1.5rem;
}

.page-mode-container.active {
    display: flex;
}

/* Zone d'affichage de l'image */
.page-display {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.page-image-container {
    position: relative;
    width: 100%;
    max-width: 900px;
    display: flex;
    justify-content: center;
}

.page-display img {
    width: 100%;
    max-width: 900px;
    height: auto;
    object-fit: contain;
    display: block;
    border-radius: 4px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    margin: 0 auto;
}

/* Loader de page */
.page-loader {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(17, 24, 39, 0.8);
    border-radius: 4px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.page-loader.active {
    opacity: 1;
    visibility: visible;
}

.loader-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(99, 102, 241, 0.2);
    border-top-color: var(--reader-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========================================
   NAVIGATION - FLÈCHES CACHÉES SUR MOBILE
   Les flèches sont remplacées par le tap sur l'image
   ======================================== */
.page-nav-arrow {
    display: none; /* Cachées par défaut sur mobile */
}

/* Afficher les flèches uniquement sur desktop */
@media (min-width: 1024px) {
    .page-nav-arrow {
        display: flex;
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: 48px;
        height: 48px;
        background: var(--reader-bg);
        border: 1px solid var(--reader-border);
        border-radius: 50%;
        align-items: center;
        justify-content: center;
        color: white;
        cursor: pointer;
        transition: all 0.2s ease;
        z-index: 10;
    }
    
    .page-nav-arrow:hover:not(.disabled) {
        background: linear-gradient(135deg, #4f46e5, #7c3aed);
        border-color: transparent;
        transform: translateY(-50%) scale(1.05);
    }
    
    .page-nav-arrow.disabled {
        opacity: 0.3;
        cursor: not-allowed;
    }
    
    .page-nav-arrow.prev {
        left: -70px;
    }
    
    .page-nav-arrow.next {
        right: -70px;
    }
}

/* ========================================
   BARRE DE PROGRESSION & NAVIGATION
   ======================================== */
.reading-progress-container {
    width: 100%;
    max-width: 900px;
    padding: 0;
}

/* Barre de progression */
.progress-bar-wrapper {
    position: relative;
    width: 100%;
    height: 6px;
    background: rgba(31, 41, 55, 0.6);
    border-radius: 999px;
    cursor: pointer;
    margin-bottom: 1rem;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #4f46e5, #818cf8);
    border-radius: 999px;
    transition: width 0.2s ease;
    position: relative;
}

.progress-bar-fill::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(200%); }
}

.progress-handle {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 16px;
    height: 16px;
    background: white;
    border: 2px solid var(--reader-accent);
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    transition: transform 0.15s ease;
}

.progress-bar-wrapper:hover .progress-handle {
    transform: translate(-50%, -50%) scale(1.2);
}

/* Navigation par page */
.page-nav-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.page-input-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(31, 41, 55, 0.6);
    border: 1px solid var(--reader-border);
    border-radius: 10px;
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
}

.page-input-group span {
    color: var(--reader-text-muted);
}

.page-input-group span.total {
    color: var(--reader-accent-light);
    font-weight: 600;
}

.page-jump-input {
    width: 50px;
    padding: 0.35rem 0.5rem;
    text-align: center;
    background: rgba(17, 24, 39, 0.8);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 6px;
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
}

.page-jump-input:focus {
    outline: none;
    border-color: var(--reader-accent);
}

/* Boutons de navigation page (mobile) */
.page-nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(31, 41, 55, 0.6);
    border: 1px solid var(--reader-border);
    border-radius: 10px;
    color: var(--reader-text);
    cursor: pointer;
    transition: all 0.2s ease;
}

.page-nav-btn:hover:not(:disabled) {
    background: var(--reader-accent);
    border-color: var(--reader-accent);
}

.page-nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.page-nav-btn svg {
    width: 20px;
    height: 20px;
}

/* ========================================
   CONTRÔLES DU BAS - BARRE FLOTTANTE
   ======================================== */
.reader-controls {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--reader-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--reader-border);
    border-radius: 16px;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.control-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 10px;
    color: var(--reader-text);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.control-button:hover {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--reader-accent);
}

.control-button svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* Mobile: boutons plus compacts */
@media (max-width: 640px) {
    .reader-controls {
        bottom: 10px;
        padding: 0.5rem 0.75rem;
        border-radius: 14px;
        gap: 0.4rem;
    }
    
    .control-button {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }
    
    .control-button span {
        display: none;
    }
    
    .control-button svg {
        width: 20px;
        height: 20px;
    }
}

/* ========================================
   MODAL DES RACCOURCIS
   ======================================== */
.shortcuts-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 1rem;
}

.shortcuts-modal.active {
    display: flex;
}

.shortcuts-content {
    background: linear-gradient(135deg, rgba(17, 24, 39, 0.98), rgba(31, 41, 55, 0.98));
    border: 1px solid var(--reader-border);
    border-radius: 16px;
    max-width: 380px;
    width: 100%;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.shortcuts-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem 1rem;
    border-bottom: 1px solid rgba(75, 85, 99, 0.3);
}

.shortcuts-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    margin: 0;
}

.close-shortcuts-x {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(75, 85, 99, 0.3);
    border: none;
    border-radius: 8px;
    color: var(--reader-text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
}

.close-shortcuts-x:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #EF4444;
}

.shortcuts-list {
    padding: 0.75rem 1.5rem;
}

.shortcut-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(75, 85, 99, 0.15);
}

.shortcut-item:last-child {
    border-bottom: none;
}

.shortcut-key {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 28px;
    padding: 0 0.6rem;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 6px;
    color: var(--reader-accent-light);
    font-size: 0.75rem;
    font-weight: 600;
    font-family: ui-monospace, monospace;
}

.shortcut-desc {
    color: var(--reader-text-muted);
    font-size: 0.85rem;
}

.close-shortcuts {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    border: none;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: filter 0.2s ease;
}

.close-shortcuts:hover {
    filter: brightness(1.1);
}

/* ========================================
   INDICATION DE TAP (MOBILE)
   ======================================== */
.tap-hint {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.75rem;
    opacity: 0;
    animation: fadeInOut 3s ease forwards;
    pointer-events: none;
}

@keyframes fadeInOut {
    0% { opacity: 0; transform: translateX(-50%) translateY(10px); }
    15% { opacity: 1; transform: translateX(-50%) translateY(0); }
    85% { opacity: 1; }
    100% { opacity: 0; }
}

/* ========================================
   RESPONSIVE FINAL
   ======================================== */
@media (max-width: 480px) {
    .reader-top-bar {
        padding: 0.5rem 0.75rem;
    }
    
    .chapter-select-wrapper {
        max-width: 140px;
    }
    
    .chapter-select {
        padding: 0.5rem 2rem 0.5rem 0.75rem;
        font-size: 0.85rem;
    }
    
    .reader-mode-selector {
        padding: 0.2rem;
    }
    
    .mode-btn {
        padding: 0.4rem 0.6rem;
    }
    
    .mode-btn svg {
        width: 18px;
        height: 18px;
    }
    
    .page-input-group {
        padding: 0.4rem 0.6rem;
        font-size: 0.8rem;
    }
    
    .page-jump-input {
        width: 42px;
        padding: 0.3rem 0.4rem;
        font-size: 0.85rem;
    }
    
    .page-nav-btn {
        width: 36px;
        height: 36px;
    }
    
    .progress-bar-wrapper {
        height: 5px;
    }
    
    .progress-handle {
        width: 14px;
        height: 14px;
    }
}

/* Écrans très petits */
@media (max-width: 360px) {
    .chapter-select-wrapper {
        max-width: 120px;
    }
    
    .mode-btn {
        padding: 0.35rem 0.5rem;
    }
}