/* =========================================================
   cartes-postales.css
   Style spécifique pour la page des cartes postales anciennes
   Hérite des variables définies dans parc-sources.css
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;500;600;700&family=Montserrat:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400;1,600&display=swap');

/* ===== VARIABLES ===== */
:root {
    --primary-dark: #0a3d62;
    --primary: #1e5f8c;
    --primary-light: #3498db;
    --primary-pale: #e6f2fa;
    --secondary-dark: #1f6650;
    --secondary: #2E8B57;
    --secondary-light: #4bc687;
    --secondary-pale: #e7f8ef;
    --gold: #d4a017;
    --gold-light: #f0c75e;
    --gold-pale: #fcf3de;
    --dark: #1a2a36;
    --gray-dark: #4a5f70;
    --gray: #7f8c8d;
    --gray-light: #bdc3c7;
    --light: #ecf0f1;
    --white: #ffffff;

    --font-heading: 'Playfair Display', serif;
    --font-subheading: 'Cormorant Garamond', serif;
    --font-body: 'Montserrat', sans-serif;

    --fs-xxl: 3.2rem;
    --fs-xl: 2.5rem;
    --fs-lg: 2rem;
    --fs-md: 1.5rem;
    --fs-normal: 1rem;
    --fs-sm: 0.9rem;
    --fs-xs: 0.8rem;

    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 3rem;
    --space-xl: 5rem;

    --radius-sm: 5px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-pill: 50px;

    --shadow-sm: 0 2px 5px rgba(0,0,0,.05);
    --shadow-md: 0 4px 15px rgba(0,0,0,.10);
    --shadow-lg: 0 10px 30px rgba(0,0,0,.14);
    --shadow-xl: 0 20px 50px rgba(0,0,0,.18);

    --transition-fast: all 0.2s cubic-bezier(.25,.46,.45,.94);
    --transition-medium: all 0.3s cubic-bezier(.25,.46,.45,.94);
    --transition-slow: all 0.5s cubic-bezier(.25,.46,.45,.94);
    --transition-bounce: all 0.5s cubic-bezier(.68,-.55,.27,1.55);

    --max-width: 1300px;
    --content-width: 1200px;

    /* Couleurs spécifiques page cartes postales */
    --sepia-light:  #f5eed8;
    --sepia:        #c9a84c;
    --sepia-dark:   #7a5c1e;
    --sepia-bg:     #fdf6e3;
    --sepia-border: #dfc98a;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

img, video, svg { max-width: 100%; height: auto; display: block; }

a { text-decoration: none; color: var(--primary); transition: var(--transition-medium); }
a:hover { color: var(--secondary); }

main {
    width: 100%;
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 var(--space-sm);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInScale {
    from { opacity: 0; transform: scale(.92); }
    to   { opacity: 1; transform: scale(1); }
}
@keyframes shimmer {
    0%   { background-position: -400px 0; }
    100% { background-position: 400px 0; }
}

/* ===== TITRE DE PAGE ===== */
.page-title {
    color: var(--primary-dark);
    text-align: center;
    font-size: var(--fs-xl);
    margin-top: 100px;
    margin-bottom: var(--space-lg);
    padding-bottom: 15px;
    border-bottom: 4px solid var(--sepia);
    font-family: var(--font-heading);
    position: relative;
    display: inline-block;
    width: 100%;
}
.page-title::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: linear-gradient(to right, var(--gold), var(--gold-light), var(--gold));
}

/* ===== INTRO ===== */
.intro-section {
    background: linear-gradient(135deg, var(--sepia-bg), var(--gold-pale));
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--space-xl);
    text-align: center;
    border-left: 5px solid var(--sepia);
}
.intro-text {
    font-size: var(--fs-md);
    line-height: 1.8;
    max-width: 900px;
    margin: 0 auto;
    color: var(--dark);
    font-family: var(--font-subheading);
}
.intro-text sup { font-size: 0.7em; }

/* ===== FILTRES ===== */
.filtres-section {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-md) var(--space-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--space-lg);
    animation: fadeIn 0.5s ease-out forwards;
}
.filtres-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-sm);
    flex-wrap: wrap;
    gap: var(--space-xs);
}
.filtres-header h2 {
    font-size: var(--fs-md);
    color: var(--primary-dark);
    font-family: var(--font-heading);
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0;
}
.filtres-header h2 i { color: var(--sepia); }

.carte-count {
    font-size: var(--fs-sm);
    color: var(--gray);
    font-family: var(--font-body);
    background: var(--sepia-bg);
    padding: 4px 14px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--sepia-border);
}

.filtres-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}
.filtre-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 18px;
    border-radius: var(--radius-pill);
    border: 2px solid var(--sepia-border);
    background: var(--sepia-bg);
    color: var(--sepia-dark);
    font-family: var(--font-body);
    font-size: var(--fs-sm);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-medium);
}
.filtre-btn:hover {
    background: var(--gold-pale);
    border-color: var(--sepia);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}
.filtre-btn.active {
    background: linear-gradient(135deg, var(--sepia-dark), var(--sepia));
    border-color: var(--sepia-dark);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

/* ===== GALERIE ===== */
.galerie-section {
    margin-bottom: var(--space-xl);
}
.galerie-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-md);
}

/* ===== CARTE ITEM ===== */
.carte-item {
    animation: fadeIn 0.5s ease-out forwards;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: var(--sepia-bg);
    border: 1px solid var(--sepia-border);
    cursor: pointer;
    transition: var(--transition-medium);
    position: relative;
}
.carte-item:hover {
    transform: translateY(-6px) rotate(-0.5deg);
    box-shadow: var(--shadow-xl);
    border-color: var(--sepia);
}
/* Effet "punaise" en haut de chaque carte */
.carte-item::before {
    content: '';
    position: absolute;
    top: -7px;
    left: 50%;
    transform: translateX(-50%);
    width: 14px;
    height: 14px;
    background: radial-gradient(circle at 40% 35%, #e05c5c, #a01a1a);
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0,0,0,.3);
    z-index: 2;
    transition: var(--transition-fast);
}
.carte-item:hover::before {
    top: -9px;
    box-shadow: 0 4px 8px rgba(0,0,0,.4);
}

.carte-inner { display: flex; flex-direction: column; height: 100%; }

/* Image */
.carte-image-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: #c8b99a;
}
.carte-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: none;
    transition: var(--transition-slow);
}
.carte-item:hover .carte-img {
    filter: none;
    transform: scale(1.04);
}

/* Placeholder quand pas d'image */
.carte-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: linear-gradient(135deg, #e8d9bb, #d4b98a);
    color: var(--sepia-dark);
    font-family: var(--font-heading);
    font-size: var(--fs-sm);
    text-align: center;
    padding: var(--space-sm);
    /* Shimmer animation */
    background-image: linear-gradient(
        90deg,
        #e8d9bb 0%,
        #f5e9ca 40%,
        #e8d9bb 80%
    );
    background-size: 400px 100%;
    animation: shimmer 2.5s infinite linear;
}
.carte-placeholder i {
    font-size: 2.5rem;
    opacity: 0.45;
}
.carte-placeholder span {
    opacity: 0.6;
    font-size: var(--fs-xs);
    max-width: 80%;
}

/* Badge date */
.carte-date-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(26,42,54,.75);
    color: var(--gold-light);
    font-family: var(--font-subheading);
    font-size: var(--fs-xs);
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(212,160,23,.4);
    letter-spacing: 0.05em;
    z-index: 1;
}

/* Overlay zoom */
.carte-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10,61,98,.55);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-medium);
}
.carte-item:hover .carte-overlay { opacity: 1; }

.btn-voir {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,.15);
    backdrop-filter: blur(6px);
    border: 2px solid rgba(255,255,255,.7);
    color: var(--white);
    padding: 10px 22px;
    border-radius: var(--radius-pill);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: var(--fs-sm);
    cursor: pointer;
    transition: var(--transition-bounce);
    transform: scale(.9);
}
.carte-item:hover .btn-voir { transform: scale(1); }
.btn-voir:hover {
    background: rgba(255,255,255,.3);
}

/* Légende */
.carte-legende {
    padding: var(--space-sm) var(--space-sm) calc(var(--space-sm) + 4px);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
    border-top: 2px dashed var(--sepia-border);
}
.carte-titre {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    color: var(--primary-dark);
    margin: 0;
    line-height: 1.3;
}
.carte-desc-courte {
    font-size: var(--fs-xs);
    color: var(--gray-dark);
    font-family: var(--font-body);
    line-height: 1.6;
    flex-grow: 1;
    margin: 0;
}

/* Badges catégories */
.carte-categorie-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: var(--fs-xs);
    font-family: var(--font-body);
    font-weight: 500;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    border: 1px solid transparent;
    align-self: flex-start;
}
.carte-badge--thermal    { background: #e8f5e9; color: #2E8B57; border-color: #b7dfca; }
.carte-badge--village    { background: #e3f2fd; color: #1565c0; border-color: #90caf9; }
.carte-badge--parc       { background: #f1f8e9; color: #558b2f; border-color: #aed581; }
.carte-badge--monuments  { background: #fff8e1; color: #f57f17; border-color: #ffe082; }
.carte-badge--vie-sociale{ background: #fce4ec; color: #c62828; border-color: #f48fb1; }

/* Filtre masqué */
.carte-item.hidden {
    display: none;
}

/* Aucun résultat */
.no-results {
    text-align: center;
    padding: var(--space-xl);
    color: var(--gray);
    font-family: var(--font-subheading);
    font-size: var(--fs-md);
}
.no-results i {
    font-size: 3rem;
    display: block;
    margin-bottom: var(--space-sm);
    opacity: 0.4;
}

/* ===== SECTION CONTRIBUTION ===== */
.contribution-section {
    margin-bottom: 80px;
    animation: fadeIn 0.6s ease-out forwards;
    animation-delay: 0.4s;
    opacity: 0;
}
.contribution-card {
    background: linear-gradient(135deg, var(--sepia-dark), var(--sepia));
    border-radius: var(--radius-lg);
    color: var(--white);
    padding: var(--space-xl);
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}
.contribution-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(to right, var(--gold), var(--gold-light));
}
.contribution-card::after {
    content: "";
    position: absolute;
    bottom: -60px; right: -60px;
    width: 200px; height: 200px;
    border-radius: 50%;
    background: rgba(255,255,255,.05);
    pointer-events: none;
}
.contribution-icon {
    font-size: 3.5rem;
    flex-shrink: 0;
    opacity: 0.9;
}
.contribution-content h3 {
    font-family: var(--font-heading);
    font-size: var(--fs-lg);
    margin-bottom: var(--space-sm);
}
.contribution-content p {
    line-height: 1.8;
    margin-bottom: var(--space-md);
    opacity: 0.92;
    max-width: 700px;
}
.btn-contribuer {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--white);
    color: var(--sepia-dark);
    padding: 12px 28px;
    border-radius: var(--radius-pill);
    font-weight: 700;
    font-family: var(--font-body);
    transition: var(--transition-bounce);
    box-shadow: var(--shadow-sm);
}
.btn-contribuer:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    color: var(--primary-dark);
}

/* ===== LIGHTBOX ===== */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 9000;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.35s ease;
}
.lightbox.open {
    pointer-events: all;
    opacity: 1;
}
.lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(10,20,30,.88);
    backdrop-filter: blur(5px);
    cursor: pointer;
}
.lightbox-container {
    position: relative;
    z-index: 1;
    width: 92%;
    max-width: 1000px;
    animation: fadeInScale 0.35s ease forwards;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

/* Bouton fermer */
.lightbox-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,.35);
    background: rgba(0,0,0,.5);
    color: var(--white);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: var(--transition-fast);
}
.lightbox-close:hover {
    background: rgba(255,255,255,.2);
    transform: scale(1.1);
}

/* Boutons navigation */
.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,.35);
    background: rgba(0,0,0,.45);
    color: var(--white);
    font-size: 1.1rem;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}
.lightbox-nav:hover {
    background: rgba(255,255,255,.25);
    transform: translateY(-50%) scale(1.08);
}
.lightbox-prev { left: -20px; }
.lightbox-next { right: -20px; }

/* Contenu lightbox */
.lightbox-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 440px;
}
.lightbox-image-side {
    background: #1a1209;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    gap: var(--space-sm);
    position: relative;
}
.lightbox-img-wrapper {
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    border-radius: var(--radius-md);
    border: 3px solid var(--sepia-border);
    box-shadow: 0 4px 20px rgba(0,0,0,.5);
}
.lightbox-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: none;
}
.lightbox-placeholder {
    aspect-ratio: 4/3;
    border-radius: var(--radius-md);
    border: 3px solid var(--sepia-border);
}

/* Cachet postal décoratif */
.lightbox-postmark {
    margin-top: auto;
}
.postmark-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 3px solid var(--sepia);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--sepia);
    opacity: 0.65;
    font-family: var(--font-subheading);
    text-transform: uppercase;
    padding: 4px;
}
.postmark-top  { font-size: 0.52rem; letter-spacing: 0.05em; line-height: 1.2; text-align: center; }
.postmark-mid  { font-size: 0.65rem; font-weight: 700; letter-spacing: 0.08em; border-top: 1px solid var(--sepia); border-bottom: 1px solid var(--sepia); padding: 1px 0; width: 100%; text-align: center; }
.postmark-bot  { font-size: 0.52rem; }

/* Côté info */
.lightbox-info-side {
    background: var(--sepia-bg);
    padding: var(--space-lg) var(--space-md);
    display: flex;
    flex-direction: column;
    position: relative;
}
.lightbox-stamp-area {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 70px;
    height: 90px;
}
.stamp-decoration {
    width: 100%;
    height: 100%;
    border: 3px solid var(--sepia-border);
    border-radius: 4px;
    background: linear-gradient(135deg, var(--gold-pale), var(--sepia-light));
    box-shadow: inset 0 0 8px rgba(0,0,0,.07);
    /* Dentelures simulées */
    background-image:
        radial-gradient(circle, transparent 8px, var(--sepia-bg) 8px),
        linear-gradient(135deg, var(--gold-pale), var(--sepia-light));
    background-size: 16px 16px, 100% 100%;
    background-position: -8px -8px, center;
}

.lightbox-titre {
    font-family: var(--font-heading);
    font-size: var(--fs-md);
    color: var(--primary-dark);
    margin-bottom: var(--space-xs);
    padding-right: 80px; /* éviter le timbre */
    line-height: 1.3;
}
.lightbox-date {
    font-family: var(--font-subheading);
    font-size: var(--fs-normal);
    color: var(--sepia-dark);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: var(--space-sm);
}
.lightbox-separator {
    height: 2px;
    background: linear-gradient(to right, var(--sepia), transparent);
    margin-bottom: var(--space-sm);
    width: 80%;
}
.lightbox-description {
    font-family: var(--font-subheading);
    font-size: 1.05rem;
    color: var(--dark);
    line-height: 1.9;
    flex-grow: 1;
}
.lightbox-counter {
    margin-top: auto;
    padding-top: var(--space-sm);
    font-size: var(--fs-sm);
    color: var(--gray);
    font-family: var(--font-body);
    text-align: right;
    border-top: 1px dashed var(--sepia-border);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1200px) {
    .nav-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        top: -180px;
        right: -330px;
    }
    .nav-menu {
        position: fixed;
        top: 0; right: -100%;
        width: 85%; max-width: 320px; height: 100vh;
        background: linear-gradient(to bottom, var(--primary-dark), var(--primary));
        flex-direction: column;
        padding: 100px 0 30px;
        box-shadow: -5px 0 25px rgba(0,0,0,.15);
        transition: right var(--transition-medium);
        z-index: 100;
        overflow-y: auto;
    }
    .nav-menu.show { right: 0; }
    .nav-menu li { width: 100%; margin: 0; }
    .nav-menu a { width: 100%; padding: 15px 25px; border-bottom: 1px solid rgba(255,255,255,.1); }
    .nav-menu a::before { display: none; }
    .submenu {
        position: static; width: 100%; box-shadow: none;
        opacity: 1; visibility: visible; transform: none; display: none;
        padding: 0; background-color: rgba(0,0,0,.1); border-top: none;
    }
    .dropdown:hover .submenu { display: none; }
    .dropdown.active .submenu { display: block; }
    .submenu a { padding-left: 40px; color: rgba(255,255,255,.9); font-size: .9rem; }
    main { width: 95%; }
    .lightbox-prev { left: 6px; }
    .lightbox-next { right: 6px; }
}

@media (max-width: 768px) {
    .lightbox-content {
        grid-template-columns: 1fr;
    }
    .lightbox-image-side {
        padding: var(--space-md);
    }
    .lightbox-postmark { display: none; }
    .lightbox-info-side {
        padding: var(--space-md);
        max-height: 50vh;
        overflow-y: auto;
    }
    .lightbox-stamp-area { display: none; }
    .lightbox-titre { padding-right: 0; }
    .contribution-card {
        flex-direction: column;
        text-align: center;
        padding: var(--space-lg);
    }
    .contribution-icon { margin-right: 0; margin-bottom: var(--space-sm); }
    .filtres-section { padding: var(--space-sm); }
    .page-title { font-size: var(--fs-lg); }
    .nav-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        top: -160px;
        right: -280px;
    }
}

@media (max-width: 576px) {
    :root {
        --space-sm: .8rem; --space-md: 1.2rem;
        --space-lg: 1.8rem; --space-xl: 2.5rem;
        --fs-xl: 1.6rem; --fs-lg: 1.4rem; --fs-md: 1.2rem;
    }
    .galerie-container {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
    .filtres-buttons { gap: 6px; }
    .filtre-btn { font-size: var(--fs-xs); padding: 7px 13px; }
    .contribution-section { margin-bottom: 120px; }
    .nav-toggle {
        top: -200px;
        right: -150px;
    }
    .lightbox-nav { width: 36px; height: 36px; font-size: .95rem; }
}

@media (max-width: 400px) {
    :root {
        --fs-xl: 1.4rem; --fs-lg: 1.2rem; --fs-md: 1.1rem;
    }
    .galerie-container { grid-template-columns: 1fr; }
    .nav-toggle {
        top: -250px;
        right: -150px;
    }
}

/* Submenu mobile toggle */
.submenu-toggle {
    display: inline-block;
    position: absolute;
    right: 15px; top: 15px;
    background: transparent; border: none;
    color: var(--white); font-size: 1.2rem;
    cursor: pointer; z-index: 2;
}
.submenu-active { display: block !important; }