/**
 * ACOVia Template Stylesheet
 * Charte graphique réutilisable pour tous les rapports ACOVia
 * Version: 2.0
 */

/* =============================================================================
   VARIABLES CSS - Palette ACOVia
   ============================================================================= */
:root {
    /* Couleurs principales */
    --c1-blue-sapphire: #1c6274;
    --c2-sea-serpent: #55bcbd;
    --c3-lumber: #fae2ca;
    --c4-watermelon: #f05988;
    --c5-independence: #494f70;

    /* Spacing système */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
}

/* =============================================================================
   RESET & BASE
   ============================================================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Oxygen', sans-serif;
    background: var(--c3-lumber);
    color: var(--c1-blue-sapphire);
    overflow-x: hidden;
}

/* =============================================================================
   NAVIGATION
   ============================================================================= */
.nav-container {
    background: white;
    border-bottom: 2px solid var(--c2-sea-serpent);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav-tabs {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    overflow-x: auto;
}

.nav-tab {
    font-family: 'Oswald', sans-serif;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: var(--space-lg) var(--space-xl);
    cursor: pointer;
    border: none;
    background: white;
    color: var(--c1-blue-sapphire);
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
    white-space: nowrap;
    position: relative;
}

.nav-tab:hover {
    background: var(--c3-lumber);
    color: var(--c1-blue-sapphire);
}

.nav-tab.active {
    border-bottom-color: var(--c4-watermelon);
    font-weight: 600;
}

.nav-tab .tab-number {
    color: var(--c4-watermelon);
    font-weight: 600;
    margin-right: var(--space-sm);
}

/* =============================================================================
   LOGO
   ============================================================================= */
.logo {
    position: fixed;
    top: 20px;
    right: 40px;
    font-family: 'Comfortaa', cursive;
    font-size: 32px;
    z-index: 1001;
    opacity: 0.8;
}

.logo .acov {
    color: var(--c1-blue-sapphire);
}

.logo .ia {
    color: var(--c2-sea-serpent);
}

/* =============================================================================
   MAIN CONTENT & VIEWS
   ============================================================================= */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 60px;
}

.view {
    display: none;
}

.view.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

/* =============================================================================
   SECTION STYLING
   ============================================================================= */
.section-title {
    font-family: 'Oswald', sans-serif;
    font-size: 56px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--c1-blue-sapphire);
    margin-bottom: var(--space-xl);
    position: relative;
    padding-bottom: var(--space-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100px;
    height: 3px;
    background: var(--c2-sea-serpent);
}

.section-number {
    font-family: 'Oswald', sans-serif;
    font-size: 80px;
    font-weight: 600;
    color: var(--c4-watermelon);
    opacity: 0.7;
    line-height: 1;
}

.section-subtitle {
    font-family: 'Staatliches', cursive;
    font-size: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--c1-blue-sapphire);
    margin: var(--space-xl) 0 var(--space-md);
    position: relative;
    padding-bottom: var(--space-sm);
}

.section-subtitle::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--c2-sea-serpent);
}

/* =============================================================================
   VISUALIZATION CONTAINERS
   ============================================================================= */
.viz-container {
    background: white;
    border-radius: 8px;
    padding: var(--space-xl);
    margin: var(--space-xl) 0;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    position: relative;
}

.viz-split {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--space-xl);
    min-height: 600px;
}

.viz-main {
    position: relative;
}

.viz-sidebar {
    background: var(--c3-lumber);
    padding: var(--space-lg);
    border-radius: 8px;
    overflow-y: auto;
    max-height: 700px;
}

.viz-sidebar h3 {
    font-family: 'Staatliches', cursive;
    font-size: 18px;
    color: var(--c1-blue-sapphire);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
}

.viz-sidebar .info-card {
    background: white;
    padding: var(--space-md);
    border-radius: 4px;
    margin-bottom: var(--space-md);
    border-left: 3px solid var(--c2-sea-serpent);
}

.viz-sidebar .info-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--c5-independence);
    text-transform: uppercase;
    margin-bottom: var(--space-xs);
}

.viz-sidebar .info-value {
    font-size: 14px;
    color: var(--c1-blue-sapphire);
}

/* =============================================================================
   SVG STYLING (D3.js)
   ============================================================================= */
svg {
    width: 100%;
    height: 100%;
}

.node circle {
    stroke: var(--c1-blue-sapphire);
    stroke-width: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.node circle:hover {
    stroke: var(--c4-watermelon);
    stroke-width: 3px;
}

.node.selected circle {
    stroke: var(--c4-watermelon);
    stroke-width: 3px;
}

.node text {
    font-family: 'Oxygen', sans-serif;
    font-size: 13px;
    fill: var(--c1-blue-sapphire);
    pointer-events: none;
}

.link {
    fill: none;
    stroke: var(--c2-sea-serpent);
    stroke-opacity: 0.4;
    stroke-width: 1.5px;
}

/* =============================================================================
   INTRO VIEW
   ============================================================================= */
.intro-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.intro-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 8px;
    border-top: 4px solid var(--c2-sea-serpent);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.intro-card h3 {
    font-family: 'Staatliches', cursive;
    font-size: 20px;
    color: var(--c1-blue-sapphire);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
}

.intro-card ul {
    list-style: none;
    padding-left: 0;
}

.intro-card li {
    padding: var(--space-sm) 0;
    padding-left: var(--space-lg);
    position: relative;
}

.intro-card li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--c2-sea-serpent);
}

/* =============================================================================
   STATS DISPLAY
   ============================================================================= */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin: var(--space-xl) 0;
}

.stat-box {
    background: white;
    padding: var(--space-xl);
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    border-bottom: 4px solid var(--c2-sea-serpent);
}

.stat-number {
    font-family: 'Oswald', sans-serif;
    font-size: 48px;
    font-weight: 600;
    color: var(--c4-watermelon);
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: var(--c1-blue-sapphire);
    margin-top: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* =============================================================================
   TIMELINE
   ============================================================================= */
.timeline {
    position: relative;
    padding: var(--space-xl) 0;
}

.timeline-item {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
    position: relative;
}

.timeline-date {
    font-family: 'Oswald', sans-serif;
    font-size: 24px;
    color: var(--c4-watermelon);
    text-align: right;
    padding-right: var(--space-lg);
    border-right: 3px solid var(--c2-sea-serpent);
}

.timeline-content {
    background: white;
    padding: var(--space-lg);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

/* =============================================================================
   MODALS & FULLSCREEN
   ============================================================================= */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    animation: fadeIn 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    position: relative;
    width: 95vw;
    height: 95vh;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 50px rgba(0,0,0,0.5);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg) var(--space-xl);
    background: var(--c1-blue-sapphire);
    color: white;
}

.modal-title {
    font-family: 'Staatliches', cursive;
    font-size: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: white;
    font-size: 32px;
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: background 0.2s ease;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.modal-body {
    height: calc(100% - 80px);
    padding: var(--space-lg);
    overflow: auto;
}

.fullscreen-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--c2-sea-serpent);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-family: 'Oxygen', sans-serif;
    font-size: 13px;
    font-weight: 600;
    z-index: 10;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.fullscreen-btn:hover {
    background: var(--c4-watermelon);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.fullscreen-btn::before {
    content: '⛶ ';
    margin-right: 4px;
}

/* =============================================================================
   OUVERTURES - MINDMAP GALLERY
   ============================================================================= */
.mindmap-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.mindmap-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.mindmap-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

.mindmap-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.mindmap-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(28,98,116,0.9), transparent);
    padding: var(--space-lg);
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.mindmap-item:hover .mindmap-overlay {
    transform: translateY(0);
}

.mindmap-overlay span {
    color: white;
    font-weight: 600;
    font-size: 14px;
}

/* =============================================================================
   OUVERTURES - THEMES GRID
   ============================================================================= */
.themes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.theme-card {
    background: white;
    border-radius: 8px;
    padding: var(--space-lg);
    border-left: 4px solid var(--c2-sea-serpent);
    transition: all 0.3s ease;
    cursor: pointer;
}

.theme-card:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    border-left-color: var(--c4-watermelon);
}

.theme-card[data-category="discourse"] { border-left-color: var(--c2-sea-serpent); }
.theme-card[data-category="risks"] { border-left-color: var(--c4-watermelon); }
.theme-card[data-category="skills"] { border-left-color: var(--c5-independence); }
.theme-card[data-category="impact"] { border-left-color: #4a9d5f; }
.theme-card[data-category="governance"] { border-left-color: #9b6b9e; }
.theme-card[data-category="geopolitics"] { border-left-color: #d17a22; }

.theme-card h3 {
    font-family: 'Oswald', sans-serif;
    font-size: 18px;
    font-weight: 600;
    color: var(--c1-blue-sapphire);
    margin-bottom: var(--space-md);
}

.theme-card p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--c5-independence);
    margin-bottom: var(--space-md);
}

.theme-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tag {
    display: inline-block;
    background: var(--c3-lumber);
    color: var(--c1-blue-sapphire);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.theme-details-panel {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: white;
    border-radius: 8px;
    padding: var(--space-lg);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    max-width: 400px;
    z-index: 500;
    display: none;
}

.theme-details-panel .info-card {
    margin-bottom: var(--space-md);
}

.theme-details-panel .info-label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--c2-sea-serpent);
    margin-bottom: var(--space-xs);
}

.theme-details-panel .info-value {
    font-size: 13px;
    color: var(--c5-independence);
    line-height: 1.5;
}

/* =============================================================================
   COMPARISON VIEW
   ============================================================================= */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.comparison-column {
    background: white;
    border-radius: 8px;
    padding: var(--space-lg);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.comparison-column.corporate { border-top: 4px solid var(--c2-sea-serpent); }
.comparison-column.terrain { border-top: 4px solid var(--c1-blue-sapphire); }
.comparison-column.internet { border-top: 4px solid var(--c4-watermelon); }

.comparison-header {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--c3-lumber);
}

.comparison-header h3 {
    font-family: 'Oswald', sans-serif;
    font-size: 18px;
    font-weight: 600;
    color: var(--c1-blue-sapphire);
    margin-bottom: var(--space-sm);
}

.comparison-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.comparison-column.corporate .comparison-badge {
    background: rgba(85, 188, 189, 0.2);
    color: var(--c2-sea-serpent);
}

.comparison-column.terrain .comparison-badge {
    background: rgba(28, 98, 116, 0.2);
    color: var(--c1-blue-sapphire);
}

.comparison-column.internet .comparison-badge {
    background: rgba(240, 89, 136, 0.2);
    color: var(--c4-watermelon);
}

.comparison-item {
    margin-bottom: var(--space-lg);
}

.comparison-item strong {
    display: block;
    font-family: 'Oxygen', sans-serif;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--c1-blue-sapphire);
    margin-bottom: var(--space-xs);
}

.comparison-item p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--c5-independence);
}

/* =============================================================================
   QUOTES GRID
   ============================================================================= */
.quotes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.quote-card {
    background: white;
    border-radius: 8px;
    padding: var(--space-lg);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.quote-card.corporate { border-left: 4px solid var(--c2-sea-serpent); }
.quote-card.terrain { border-left: 4px solid var(--c1-blue-sapphire); }
.quote-card.internet { border-left: 4px solid var(--c4-watermelon); }

.quote-header {
    font-family: 'Oswald', sans-serif;
    font-size: 16px;
    font-weight: 600;
    color: var(--c1-blue-sapphire);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--c3-lumber);
}

.quote-card blockquote {
    font-size: 14px;
    line-height: 1.6;
    color: var(--c5-independence);
    font-style: italic;
    margin: var(--space-md) 0;
    padding-left: var(--space-md);
    border-left: 2px solid var(--c3-lumber);
}

/* =============================================================================
   VALUE GAP VISUALIZATION
   ============================================================================= */
.value-gap-viz {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    padding: var(--space-xl);
    background: white;
    border-radius: 8px;
    margin-top: var(--space-lg);
}

.gap-stat {
    text-align: center;
    padding: var(--space-xl);
    background: var(--c3-lumber);
    border-radius: 8px;
    flex: 1;
    max-width: 300px;
}

.gap-stat.critical {
    background: rgba(240, 89, 136, 0.1);
    border: 2px solid var(--c4-watermelon);
}

.gap-value {
    font-family: 'Staatliches', cursive;
    font-size: 72px;
    color: var(--c1-blue-sapphire);
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.gap-stat.critical .gap-value {
    color: var(--c4-watermelon);
}

.gap-label {
    font-family: 'Oswald', sans-serif;
    font-size: 18px;
    font-weight: 600;
    color: var(--c1-blue-sapphire);
    margin-bottom: var(--space-sm);
}

.gap-source {
    font-size: 12px;
    color: var(--c5-independence);
    font-style: italic;
}

.gap-arrow {
    font-size: 48px;
    color: var(--c5-independence);
}

/* =============================================================================
   CONSENSUS GRID
   ============================================================================= */
.consensus-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.consensus-item {
    background: white;
    border-radius: 8px;
    padding: var(--space-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.consensus-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.consensus-item strong {
    display: block;
    font-family: 'Oxygen', sans-serif;
    font-size: 16px;
    font-weight: 700;
    color: var(--c1-blue-sapphire);
    margin-bottom: var(--space-xs);
}

.consensus-item p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--c5-independence);
}

/* =============================================================================
   RESPONSIVE DESIGN
   ============================================================================= */
@media (max-width: 768px) {
    .main-content {
        padding: 20px 30px;
    }

    .section-title {
        font-size: 36px;
    }

    .viz-split {
        grid-template-columns: 1fr;
    }

    .timeline-item {
        grid-template-columns: 1fr;
    }

    .timeline-date {
        text-align: left;
        border-right: none;
        border-bottom: 3px solid var(--c2-sea-serpent);
        padding-bottom: var(--space-sm);
    }

    .comparison-grid,
    .quotes-grid {
        grid-template-columns: 1fr;
    }
}

/* =============================================================================
   EMPTY STATE
   ============================================================================= */
.empty-state {
    text-align: center;
    padding: calc(var(--space-xl) * 2);
    color: var(--c5-independence);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: var(--space-lg);
}