@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --bg-color: #f4f5f7;
    --surface-color: #ffffff;
    --text-main: #111827;
    --text-muted: #6b7280;
    --accent: #0f172a;
    --accent-hover: #1e293b;
    --danger: #ef4444;
    --border-color: rgba(0, 0, 0, 0.1);

    --radius: 20px;
    --radius-sm: 12px;

    /* Ombres modernes */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.02), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
    --shadow-float: 0 25px 30px -5px rgba(0, 0, 0, 0.15), 0 15px 15px -10px rgba(0, 0, 0, 0.1);

    --ease-spring: cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* =========================================
   THÈME SOMBRE (Variables dynamiques)
   ========================================= */
body.theme-dark {
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}

body.theme-dark p,
body.theme-dark .input-group label {
    color: var(--text-muted);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-bottom: 120px;
}

.container {
    max-width: 640px;
    margin: 0 auto;
    padding: 24px 20px;
}

/* Typographie */
h1 {
    font-size: 1.85rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    text-align: center;
    letter-spacing: -0.03em;
}

h2 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

p {
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

/* Panneaux (Cards) */
.panel {
    background-color: var(--surface-color);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
    transition: box-shadow 0.3s ease;
}

.header-panel {
    padding-top: 0;
    overflow: hidden;
}

.event-banner {
    height: 120px;
    background-color: var(--accent);
    background-size: cover;
    background-position: center;
    margin: 0 -24px 20px -24px;
}

.event-title {
    margin-top: 20px;
}

/* Accueil de l'utilisateur (Bonjour, Michel !) */
.user-greeting {
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.greeting-text {
    font-weight: 600;
}

/* Formulaires */
.input-group {
    margin-bottom: 16px;
}

.input-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

input,
select {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    background: rgba(0, 0, 0, 0.03);
    color: var(--text-main);
    transition: all 0.25s ease;
    font-family: inherit;
}

body.theme-dark input,
body.theme-dark select {
    background: rgba(0, 0, 0, 0.2);
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--surface-color);
    box-shadow: 0 0 0 4px rgba(15, 23, 42, 0.08);
}

/* Boutons principaux */
button,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 14px 20px;
    background-color: var(--accent);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s var(--ease-spring);
    box-shadow: var(--shadow-sm);
    gap: 8px;
}

button:hover,
.btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

button:active,
.btn:active {
    transform: translateY(0) scale(0.98);
}

/* Boutons secondaires (Modifier, Annuler) */
.btn-secondary {
    width: auto;
    padding: 8px 16px;
    font-size: 0.85rem;
    background: #e5e7eb;
    color: #111827;
    box-shadow: none;
    border-radius: 8px;
}

body.theme-dark .btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}

body.theme-dark .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Bouton d'upload flottant */
.upload-btn-wrapper {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    width: 90%;
    max-width: 320px;
}

.upload-btn-wrapper .btn {
    border-radius: 999px;
    padding: 18px 24px;
    box-shadow: var(--shadow-float);
    font-size: 1.05rem;
    background-image: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
}

.upload-btn-wrapper input[type="file"] {
    display: none;
}

/* Onglets Segmentés */
.gallery-controls {
    margin-top: 10px;
    padding: 20px;
}

.tabs {
    display: flex;
    gap: 4px;
    background: rgba(0, 0, 0, 0.05);
    padding: 4px;
    border-radius: 14px;
    margin-bottom: 15px;
}

body.theme-dark .tabs {
    background: rgba(0, 0, 0, 0.2);
}

.tab-btn {
    flex: 1;
    background: transparent;
    color: var(--text-muted);
    padding: 10px;
    border-radius: 10px;
    font-size: 0.9rem;
    box-shadow: none;
    transition: all 0.3s var(--ease-spring);
}

.tab-btn.active {
    background: var(--surface-color);
    color: var(--text-main);
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

body.theme-dark .tab-btn.active {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.tab-btn:hover:not(.active) {
    background: rgba(0, 0, 0, 0.03);
    color: var(--text-main);
    transform: none;
}

#sortSelect {
    cursor: pointer;
    font-weight: 500;
}

/* Galerie */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.photo-card {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: #e5e7eb;
    aspect-ratio: 3/4;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s var(--ease-spring), box-shadow 0.3s var(--ease-spring);
}

.photo-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.photo-card:active {
    transform: scale(0.96);
}

.photo-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    cursor: zoom-in;
}

.delete-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--danger);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    cursor: pointer;
    display: none;
    font-weight: bold;
    padding: 0;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

.own-photo .delete-btn {
    display: flex;
    align-items: center;
    justify-content: center;
}

.uploader-badge {
    position: absolute;
    bottom: 10px;
    left: 10px;
    background: rgba(17, 24, 39, 0.7);
    color: white;
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    max-width: 85%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Écrans d'erreur */
.error-state {
    text-align: center;
    padding: 50px 20px;
    background: var(--surface-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    margin-top: 40px;
}

.error-state .icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.error-state h2 {
    margin-bottom: 0.5rem;
    color: var(--danger);
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 9999;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox img {
    max-width: 95vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease;
    touch-action: none;
}

.lightbox-close,
.lightbox-info-btn {
    position: absolute;
    color: white;
    font-weight: 300;
    cursor: pointer;
    z-index: 10000;
    padding: 15px;
    transition: color 0.2s, transform 0.2s;
}

.lightbox-close {
    top: 20px;
    right: 25px;
    font-size: 45px;
}

.lightbox-info-btn {
    top: 25px;
    left: 25px;
    font-size: 32px;
}

.lightbox-close:hover,
.lightbox-info-btn:hover {
    transform: scale(1.1);
}

.lightbox-info {
    display: none;
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(17, 24, 39, 0.8);
    color: white;
    padding: 16px 24px;
    border-radius: var(--radius-sm);
    text-align: center;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    width: 90%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
    z-index: 10001;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.lightbox-info.show {
    display: block;
    animation: slideUp 0.3s var(--ease-spring);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translate(-50%, 20px);
    }

    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

/* Modale */
.modal-overlay {
    display: none;
    position: fixed;
    z-index: 10000;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--surface-color);
    padding: 32px 28px;
    border-radius: var(--radius);
    width: 90%;
    max-width: 420px;
    text-align: center;
    box-shadow: var(--shadow-float);
    transform: scale(0.95) translateY(20px);
    transition: transform 0.4s var(--ease-spring);
}

.modal-overlay.active .modal-content {
    transform: scale(1) translateY(0);
}

/* Éléments Modale */
.lang-switcher {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 15px;
}

.modal-input-group {
    text-align: left;
    margin-top: 20px;
}

.modal-save-btn {
    margin-top: 15px;
}

.modal-cancel-btn {
    margin-top: 10px;
    width: 100%;
}

/* Boutons de Langue */
.lang-btn {
    flex: 1;
    padding: 10px 15px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all 0.25s var(--ease-spring);
    background: #e5e7eb;
    color: var(--text-muted);
}

.lang-btn.active {
    background: var(--accent);
    color: white;
    box-shadow: var(--shadow-sm);
}

body.theme-dark .lang-btn:not(.active) {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}

body.theme-dark .lang-btn:not(.active):hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Fond Application */
.app-background {
    position: fixed;
    top: -5%;
    left: -5%;
    width: 110vw;
    height: 110vh;
    background-image: url('/background.jpg');
    /* Image de fond par défaut */
    background-size: cover;
    background-position: center;
    filter: blur(20px) saturate(1.2);
    z-index: -1;
    opacity: 0.5;
    transition: background-image 0.5s ease;
}

body.theme-light .panel,
body.theme-light .modal-content {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

body.theme-dark .panel,
body.theme-dark .modal-content {
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

/* Squelette de chargement */
.photo-card {
    background: linear-gradient(90deg, rgba(160, 160, 160, 0.1) 25%, rgba(160, 160, 160, 0.2) 50%, rgba(160, 160, 160, 0.1) 75%);
    background-size: 200% 100%;
    animation: skeletonLoading 1.5s infinite ease-in-out;
}

@keyframes skeletonLoading {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

.photo-card img {
    opacity: 0;
    transition: opacity 0.4s ease-in-out;
}

.photo-card img.loaded {
    opacity: 1;
}

/* Barre de progression */
.upload-btn-wrapper .btn.uploading {
    pointer-events: none;
    background: rgba(0, 0, 0, 0.2);
    color: transparent !important;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.upload-btn-wrapper .btn.uploading span {
    visibility: hidden;
}

.upload-btn-wrapper .btn.uploading::before {
    content: attr(data-progress);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    z-index: 2;
    font-weight: 700;
}

.upload-btn-wrapper .btn.uploading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: var(--progress, 0%);
    background: var(--accent);
    opacity: 0.8;
    z-index: 1;
    transition: width 0.3s ease;
}