/* ===============================================
   RESET & BASE STYLES
   =============================================== */

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

:root {
    /* Colors */
    --color-dark: #1a1a1a;
    --color-dark-soft: #2d2d2d;
    --color-light: #f8f8f8;
    --color-white: #ffffff;
    --color-accent: #c9a66b;
    --color-accent-dark: #a8885a;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-border: #e0e0e0;

    /* Typography */
    --font-serif: 'Cormorant Garamond', serif;
    --font-sans: 'Inter', sans-serif;

    /* Spacing */
    --section-padding: 120px;
    --container-padding: 40px;

    /* Transitions */
    --transition-smooth: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.3s ease;
}

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

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ===============================================
   TYPOGRAPHY
   =============================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.2;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    color: var(--color-dark);
    margin-bottom: 60px;
    font-weight: 600;
}

/* ===============================================
   NAVIGATION
   =============================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid transparent;
    transition: var(--transition-smooth);
}

.nav.scrolled {
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px var(--container-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-dark);
    text-decoration: none;
    transition: var(--transition-fast);
}

.nav-logo:hover {
    color: var(--color-accent);
}

.nav-menu {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 400;
    position: relative;
    transition: var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-accent);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-burger span {
    width: 25px;
    height: 2px;
    background: var(--color-dark);
    transition: var(--transition-fast);
}

/* ===============================================
   HERO SECTION
   =============================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #f8f8f8 0%, #e8e8e8 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 50%, rgba(201, 166, 107, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(201, 166, 107, 0.08) 0%, transparent 50%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 80px 0;
}

.hero-title {
    margin-bottom: 40px;
}

.title-line {
    display: block;
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 15px;
    letter-spacing: -0.02em;
}

.title-subtitle {
    display: block;
    font-size: clamp(1.2rem, 3vw, 2rem);
    font-weight: 300;
    color: var(--color-text-light);
    font-style: italic;
}

.hero-text {
    margin-bottom: 50px;
}

.hero-main {
    font-size: clamp(1rem, 2vw, 1.25rem);
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-date {
    font-size: 1rem;
    color: var(--color-accent);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator span {
    display: block;
    width: 2px;
    height: 40px;
    background: var(--color-accent);
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0%, 100% {
        transform: translateY(0);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
}

/* ===============================================
   BUTTONS
   =============================================== */

.btn {
    display: inline-block;
    padding: 18px 45px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(201, 166, 107, 0.3);
}

.btn-large {
    padding: 22px 60px;
    font-size: 1.1rem;
}

/* ===============================================
   EXPOSITION SECTION
   =============================================== */

.exposition {
    padding: var(--section-padding) 0;
    background: var(--color-white);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.exposition-grid {
    display: grid;
    gap: 80px;
}

.exposition-item {
    position: relative;
    padding-left: 100px;
    opacity: 1;
}

.exposition-number {
    position: absolute;
    left: 0;
    top: 0;
    font-family: var(--font-serif);
    font-size: 5rem;
    font-weight: 700;
    color: rgba(201, 166, 107, 0.15);
    line-height: 1;
}

.exposition-subtitle {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    color: var(--color-dark);
    margin-bottom: 25px;
    font-weight: 600;
}

.exposition-content p {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--color-text);
    margin-bottom: 20px;
}

.exposition-question {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-style: italic;
    color: var(--color-accent);
    margin-top: 30px;
}

/* ===============================================
   VOYAGE SECTION
   =============================================== */

.voyage {
    padding: var(--section-padding) 0;
    background: var(--color-light);
}

.voyage .section-title {
    text-align: center;
}

.voyage-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.voyage-text p {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--color-text);
    margin-bottom: 20px;
}

.voyage-highlight {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-style: italic;
    color: var(--color-accent-dark);
    margin-top: 30px;
    padding: 25px;
    background: var(--color-white);
    border-left: 3px solid var(--color-accent);
}

.voyage-visual {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.map-container {
    position: relative;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
}

.map-point {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.map-point .point {
    width: 20px;
    height: 20px;
    background: var(--color-accent);
    border-radius: 50%;
    position: relative;
    z-index: 2;
    box-shadow: 0 0 0 0 rgba(201, 166, 107, 0.7);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(201, 166, 107, 0.7);
    }
    70% {
        box-shadow: 0 0 0 20px rgba(201, 166, 107, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(201, 166, 107, 0);
    }
}

.map-point .label {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-dark);
    font-weight: 600;
}

.map-line {
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent) 100%);
    transform: translateY(-50%);
    z-index: 1;
}

.map-line::before {
    content: '';
    position: absolute;
    right: -10px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 10px solid var(--color-accent);
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
}

.voyage-info {
    display: flex;
    justify-content: center;
    gap: 60px;
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-accent);
}

/* ===============================================
   URGENCE SECTION
   =============================================== */

.urgence {
    padding: var(--section-padding) 0;
    background: var(--color-dark);
    color: var(--color-light);
}

.urgence .section-title {
    color: var(--color-white);
    text-align: center;
}

.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px;
    margin-bottom: 80px;
}

.stat-item {
    text-align: center;
    padding: 40px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    transition: var(--transition-smooth);
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-5px);
}

.stat-number {
    font-family: var(--font-serif);
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 15px;
}

.stat-label {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--color-light);
}

.urgence-content {
    max-width: 900px;
    margin: 0 auto;
}

.urgence-content p {
    font-size: 1.1rem;
    line-height: 1.9;
    margin-bottom: 25px;
    color: rgba(255, 255, 255, 0.9);
}

.urgence-manifesto {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-style: italic;
    color: var(--color-accent);
    margin-top: 40px;
    padding: 35px;
    background: rgba(201, 166, 107, 0.1);
    border-left: 3px solid var(--color-accent);
}

/* ===============================================
   DIFFUSION SECTION
   =============================================== */

.diffusion {
    padding: var(--section-padding) 0;
    background: var(--color-white);
}

.diffusion .section-title {
    text-align: center;
}

.diffusion-timeline {
    max-width: 800px;
    margin: 0 auto 60px;
    position: relative;
}

.diffusion-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
}

.timeline-item {
    position: relative;
    padding-left: 80px;
    padding-bottom: 60px;
    opacity: 1;
}

.timeline-marker {
    position: absolute;
    left: 22px;
    top: 0;
    width: 18px;
    height: 18px;
    background: var(--color-accent);
    border-radius: 50%;
    border: 3px solid var(--color-white);
    box-shadow: 0 0 0 3px var(--color-accent);
}

.timeline-content h3 {
    font-size: 1.8rem;
    color: var(--color-dark);
    margin-bottom: 15px;
    font-weight: 600;
}

.timeline-content p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: 10px;
}

.diffusion-info {
    text-align: center;
    margin-top: 60px;
}

.surface-needed {
    font-size: 1.2rem;
    color: var(--color-accent);
    font-weight: 500;
    padding: 20px 40px;
    background: var(--color-light);
    display: inline-block;
    border-radius: 50px;
}

/* ===============================================
   SOUTENIR SECTION
   =============================================== */

.soutenir {
    padding: var(--section-padding) 0;
    background: var(--color-light);
}

.soutenir .section-title {
    text-align: center;
}

.soutenir-intro {
    text-align: center;
    margin-bottom: 60px;
}

.budget-total {
    font-size: 1.5rem;
    color: var(--color-text);
}

.budget-total strong {
    color: var(--color-accent);
    font-size: 2rem;
    font-family: var(--font-serif);
}

.budget-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-bottom: 80px;
}

.budget-item {
    background: var(--color-white);
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
}

.budget-item:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.budget-item h3 {
    font-size: 1.5rem;
    color: var(--color-dark);
    margin-bottom: 20px;
}

.budget-amount {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 15px;
}

.budget-item p {
    color: var(--color-text-light);
    font-size: 1rem;
}

.funding-progress {
    max-width: 800px;
    margin: 0 auto 80px;
    background: var(--color-white);
    padding: 50px;
    border-radius: 10px;
}

.progress-header h3 {
    font-size: 1.8rem;
    color: var(--color-dark);
    margin-bottom: 25px;
}

.funding-methods {
    list-style: none;
    margin-bottom: 40px;
}

.funding-methods li {
    padding: 12px 0 12px 30px;
    position: relative;
    font-size: 1.1rem;
    color: var(--color-text);
}

.funding-methods li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
}

.progress-bar-container {
    margin-top: 40px;
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: var(--color-border);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 15px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent-dark), var(--color-accent));
    border-radius: 10px;
    transition: width 1s ease;
    width: 0;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    font-size: 1rem;
}

.progress-current {
    color: var(--color-accent);
    font-weight: 600;
}

.progress-goal {
    color: var(--color-text-light);
}

.contreparties {
    max-width: 1000px;
    margin: 0 auto 60px;
}

.contreparties h3 {
    font-size: 2rem;
    color: var(--color-dark);
    margin-bottom: 40px;
    text-align: center;
}

.contreparties-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.contrepartie-card {
    background: var(--color-white);
    padding: 35px 25px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition-smooth);
    border: 2px solid var(--color-border);
}

.contrepartie-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.contrepartie-highlight {
    border-color: var(--color-accent);
    background: linear-gradient(135deg, rgba(201, 166, 107, 0.05), var(--color-white));
}

.contrepartie-amount {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.contrepartie-card ul {
    list-style: none;
    text-align: left;
}

.contrepartie-card li {
    padding: 8px 0;
    font-size: 0.95rem;
    color: var(--color-text);
    position: relative;
    padding-left: 20px;
}

.contrepartie-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
}

.cta-section {
    text-align: center;
    margin-top: 60px;
}

.contact-info {
    margin-top: 40px;
}

.contact-info p {
    margin: 8px 0;
    color: var(--color-text);
}

.contact-info a {
    color: var(--color-accent);
    text-decoration: none;
    transition: var(--transition-fast);
}

.contact-info a:hover {
    color: var(--color-accent-dark);
}

/* ===============================================
   ARTISTE SECTION
   =============================================== */

.artiste {
    padding: var(--section-padding) 0;
    background: var(--color-white);
}

.artiste-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.artiste-text p {
    font-size: 1.15rem;
    line-height: 1.9;
    color: var(--color-text);
    margin-bottom: 20px;
}

.artiste-process {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-style: italic;
    color: var(--color-accent-dark);
    margin: 35px 0;
    padding: 30px;
    background: var(--color-light);
    border-left: 3px solid var(--color-accent);
}

.artiste-contact {
    margin-top: 50px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-link {
    color: var(--color-accent);
    text-decoration: none;
    font-size: 1.1rem;
    transition: var(--transition-fast);
    display: inline-block;
}

.contact-link:hover {
    color: var(--color-accent-dark);
    transform: translateX(5px);
}

/* ===============================================
   FOOTER
   =============================================== */

.footer {
    background: var(--color-dark);
    color: var(--color-light);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand h3 {
    font-size: 1.8rem;
    color: var(--color-accent);
    margin-bottom: 10px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-style: italic;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-accent);
    transform: translateX(5px);
}

.footer-contact p {
    margin: 8px 0;
}

.footer-contact a {
    color: var(--color-accent);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-contact a:hover {
    color: var(--color-light);
}

.footer-bottom {
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* ===============================================
   RESPONSIVE DESIGN
   =============================================== */

@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
        --container-padding: 30px;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: var(--color-white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
        transition: var(--transition-smooth);
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-burger {
        display: flex;
    }

    .voyage-wrapper {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .stats {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .budget-grid {
        grid-template-columns: 1fr;
    }

    .contreparties-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
        --container-padding: 20px;
    }

    .exposition-item {
        padding-left: 0;
    }

    .exposition-number {
        position: relative;
        margin-bottom: 20px;
        font-size: 3rem;
    }

    .diffusion-timeline::before {
        left: 10px;
    }

    .timeline-item {
        padding-left: 50px;
    }

    .timeline-marker {
        left: 2px;
    }

    .contreparties-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .title-line {
        font-size: 2.5rem;
    }

    .title-subtitle {
        font-size: 1rem;
    }

    .btn {
        padding: 15px 35px;
        font-size: 0.95rem;
    }

    .voyage-info {
        flex-direction: column;
        gap: 20px;
    }
}

/* ===============================================
   ANIMATIONS & UTILITIES
   =============================================== */

.fade-in {
    opacity: 0;
    animation: fadeIn 1s ease forwards;
}

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

.slide-up {
    opacity: 1;
}

.slide-in-left {
    opacity: 1;
}

.slide-in-right {
    opacity: 1;
}