/**
 * Chronolexografie Landing Page - Main Stylesheet
 */

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

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

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-black);
    background-image: url('/img/header-image.svg');
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

/* White transparent overlay for readability */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    z-index: 0;
    pointer-events: none;
}

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

/* ===== LAYOUT UTILITIES ===== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
}

/* ===== MAIN CONTENT ===== */
main {
    position: relative;
    z-index: 1;
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    overflow: hidden;
    padding-bottom: 0;
}

/* Society Flourish (legacy) */
.society-flourish {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    z-index: 1;
    pointer-events: none;
}

.flourish-image {
    width: 100%;
    height: auto;
    opacity: 0.6;
}

/* Hero Title - Top of hero section */
.hero-title {
    position: relative;
    padding-top: var(--space-3xl);
    z-index: 10;
    text-align: center;
    width: 90%;
    max-width: 900px;
    margin: 0 auto var(--space-2xl);
}

.hero-title h1 {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-black);
    margin-bottom: var(--space-sm);
}

.hero-title .subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-blue-primary);
    font-weight: 400;
    max-width: 700px;
    margin: 0 auto;
}

/* Triptych Section */
.triptych-section {
    padding: var(--space-lg);
    background: transparent;
}

/* Triptych - Character Grid */
.triptych {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

@media (min-width: 768px) {
    .triptych {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-lg);
    }
}

/* Individual Character */
.character {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    /* Initial state for reveal animation */
    opacity: 0;
    transform: translateY(30px);
    animation: reveal 0.8s ease-out forwards;
    transition: opacity 0.8s ease-in-out;
}

/* Mobile carousel - hide inactive characters */
@media (max-width: 767px) {
    .triptych-section {
        padding: 0 var(--space-md) var(--space-xs);
    }

    .triptych {
        position: relative;
        min-height: 380px;
        padding: 0;
        gap: 0;
        margin-bottom: 0;
    }

    .character {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        margin: 0 auto;
        opacity: 0;
        pointer-events: none;
        animation: none;
        transform: none;
    }

    .character.active {
        opacity: 1;
        pointer-events: auto;
    }

    .intro {
        padding: 0 var(--space-md) var(--space-xs);
    }

    .intro .container {
        padding: var(--space-lg);
    }
}

.character.monk {
    animation-delay: 0.2s;
}

.character.civil-servant {
    animation-delay: 0.5s;
}

.character.professional {
    animation-delay: 0.8s;
}

@keyframes reveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.character-container {
    position: relative;
    width: 100%;
    max-width: 320px;
    aspect-ratio: 1;
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--space-md);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.character:hover .character-container {
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

/* Blue glow effect on hover */
.character-container::after {
    content: '';
    position: absolute;
    inset: -10px;
    border-radius: var(--border-radius-xl);
    background: var(--color-blue-glow);
    opacity: 0;
    filter: blur(20px);
    transition: opacity var(--transition-normal);
    z-index: -1;
}

.character:hover .character-container::after {
    opacity: 0.3;
}

.character-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Character Caption - Era only */
.character-caption {
    margin-top: var(--space-md);
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.character-caption .era {
    font-size: var(--font-size-sm);
    color: var(--color-mid);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

.character-caption .role {
    display: none;
}

/* CTA Buttons - Between title and triptych */
.cta-buttons {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin: 0 auto var(--space-2xl);
    max-width: 600px;
}

.cta-buttons .button {
    width: 100%;
}

@media (min-width: 640px) {
    .cta-buttons {
        flex-direction: row;
        gap: var(--space-lg);
    }

    .cta-buttons .button {
        flex: 1;
        width: auto;
    }
}

.button {
    display: block;
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
    text-align: center;
    box-sizing: border-box;
}

.button.primary {
    background: var(--color-blue-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.button.primary:hover {
    background: var(--color-blue-electric);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.button.secondary {
    background: transparent;
    color: var(--color-blue-primary);
    border-color: var(--color-blue-primary);
}

.button.secondary:hover {
    background: #D9F4FF;
    color: var(--color-blue-primary);
    border-color: var(--color-blue-electric);
    transform: translateY(-2px);
}

/* ===== INTRO SECTION ===== */
.intro {
    padding: var(--space-lg);
    background: transparent;
}

.intro .container {
    max-width: var(--container-max-width);
    background: var(--color-white);
    padding: var(--space-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.intro .lead {
    font-size: var(--font-size-2xl);
    line-height: var(--line-height-relaxed);
    color: var(--color-dark);
    margin-bottom: var(--space-lg);
    font-weight: 400;
}

.intro .supporting {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--color-mid);
}

/* ===== ONGOING RESEARCH SECTION ===== */
.ongoing-research {
    padding: var(--space-lg);
    background: transparent;
}

.ongoing-research .container {
    max-width: var(--container-max-width);
    background: var(--color-white);
    padding: var(--space-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.ongoing-research h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--space-xl);
}

/* Research Table */
.research-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--space-lg);
}

.research-table thead {
    border-bottom: 2px solid var(--color-mid);
}

.research-table th {
    padding: var(--space-md);
    text-align: left;
    font-weight: 600;
    color: var(--color-dark);
    font-size: var(--font-size-base);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: var(--font-size-sm);
}

.research-table td {
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-lighter);
    color: var(--color-dark);
    font-size: var(--font-size-base);
}

.research-table tbody tr {
    transition: background-color 0.3s ease;
}

.research-table tbody tr:hover {
    background: rgba(224, 224, 224, 0.3);
}

.research-table tbody tr:last-child td {
    border-bottom: none;
}

/* Status column - make buttons/badges full width */
.research-table td:nth-child(3) {
    min-width: 150px;
}

.research-table td:nth-child(3) .button,
.research-table td:nth-child(3) .status-badge {
    display: block;
    width: 100%;
}

/* Small Button Variant */
.button.small {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

/* Status Badge */
.status-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-align: center;
    line-height: 1.5;
}

.status-badge.started {
    background: #FFF3CD;
    color: #856404;
}

/* ===== RESEARCH ROADMAP SECTION ===== */
.research-roadmap {
    padding: var(--space-lg);
    background: transparent;
}

.research-roadmap .intro-panel {
    max-width: var(--container-max-width);
    margin: 0 auto var(--space-2xl);
    background: var(--color-white);
    padding: var(--space-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.research-roadmap h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--space-lg);
}

.research-roadmap .section-intro {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--color-mid);
    margin-bottom: 0;
}

.research-roadmap .research-grid-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
}

/* Research Grid */
.research-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    max-width: var(--container-max-width);
    margin: 0 auto;
}

@media (min-width: 640px) {
    .research-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .research-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Research Card */
.research-card {
    background: var(--color-white);
    padding: var(--space-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
    overflow: hidden;
    /* Initial state for intersection observer animation */
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.research-card.visible {
    opacity: 1;
    transform: translateY(0);
}

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

/* Card number indicator */
.card-number {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-blue-primary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-lg);
    opacity: 0.8;
}

.research-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: var(--space-md);
    padding-right: 50px; /* Space for number */
}

.research-card p {
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--color-mid);
}

/* ===== FOOTER ===== */
.site-footer {
    position: relative;
    z-index: 1;
    padding: var(--space-3xl) var(--space-lg);
    background: var(--color-white);
    color: var(--color-black);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    align-items: center;
    text-align: center;
}

@media (min-width: 1024px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        text-align: left;
    }

    .footer-info {
        flex: 1;
        text-align: left;
    }

    .footer-links {
        flex: 0 0 auto;
        min-width: 400px;
    }
}

.footer-info h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: var(--space-xs);
}

.footer-info .version {
    font-size: var(--font-size-base);
    color: var(--color-mid);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    align-items: center;
}

@media (min-width: 1024px) {
    .footer-links {
        flex-direction: row;
        gap: var(--space-2xl);
    }
}

.footer-links a {
    color: var(--color-blue-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-blue-electric);
}

/* ===== ACCESSIBILITY ===== */
/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Focus visible styles */
:focus-visible {
    outline: 2px solid var(--color-blue-primary);
    outline-offset: 2px;
}

/* Skip to main content link (for screen readers) */
.skip-to-main {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-blue-primary);
    color: var(--color-white);
    padding: var(--space-sm) var(--space-md);
    text-decoration: none;
    z-index: 100;
}

.skip-to-main:focus {
    top: 0;
}

/* ===== RESPONSIVE TYPOGRAPHY ===== */
@media (max-width: 768px) {
    .hero-title {
        width: 95%;
        padding-top: var(--space-2xl);
    }

    .hero-title h1 {
        font-size: var(--font-size-4xl);
    }

    .hero-title .subtitle {
        font-size: var(--font-size-lg);
    }

    .triptych {
        width: 95%;
        gap: var(--space-md);
        margin-bottom: 0;
    }

    .intro .container {
        padding: var(--space-lg);
    }

    .intro .lead {
        font-size: var(--font-size-xl);
    }

    .ongoing-research .container,
    .research-roadmap .intro-panel {
        padding: var(--space-lg);
    }

    .ongoing-research h2,
    .research-roadmap h2 {
        font-size: var(--font-size-2xl);
    }

    .research-roadmap .intro-panel {
        margin-bottom: var(--space-xl);
    }

    /* Mobile panel layout for research table */
    .research-table thead {
        display: none;
    }

    .research-table,
    .research-table tbody,
    .research-table tr,
    .research-table td {
        display: block;
        width: 100%;
    }

    .research-table tr {
        background: #FFFFFF;
        border-radius: var(--border-radius-md);
        box-shadow: var(--shadow-md);
        padding: var(--space-sm);
        margin-bottom: var(--space-md);
        border: none;
    }

    .research-table td {
        border: none;
        padding: var(--space-xs) 0;
        text-align: left;
    }

    .research-table td:first-child {
        font-size: var(--font-size-lg);
        font-weight: 600;
        color: var(--color-black);
        margin-bottom: var(--space-xs);
    }

    .research-table td:nth-child(2):not(:empty)::before {
        content: "Categorie: ";
        font-weight: 600;
        color: var(--color-mid);
    }

    .research-table td:nth-child(2) {
        font-size: var(--font-size-sm);
        color: var(--color-dark);
        margin-bottom: var(--space-sm);
    }

    .research-table td:nth-child(3) {
        margin: var(--space-sm) 0;
    }

    .research-table td:nth-child(4)::before {
        content: "Update: ";
        font-weight: 600;
        color: var(--color-mid);
    }

    .research-table td:nth-child(4) {
        font-size: var(--font-size-sm);
        color: var(--color-dark);
    }

    .research-table td:nth-child(3) .button,
    .research-table td:nth-child(3) .status-badge {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-title {
        width: 95%;
        padding-top: var(--space-xl);
        margin-bottom: var(--space-lg);
    }

    .hero-title h1 {
        font-size: var(--font-size-3xl);
    }

    .hero-title .subtitle {
        font-size: var(--font-size-base);
    }

    .triptych {
        width: 95%;
        gap: var(--space-sm);
        margin-bottom: var(--space-md);
    }

    .cta-buttons {
        flex-direction: column;
        margin-bottom: var(--space-lg);
    }

    .intro .container,
    .ongoing-research .container,
    .research-roadmap .intro-panel {
        padding: var(--space-md);
    }

    .ongoing-research h2,
    .research-roadmap h2 {
        font-size: var(--font-size-xl);
    }

    .research-roadmap .intro-panel {
        margin-bottom: var(--space-lg);
    }

    /* Mobile panel layout for research table */
    .research-table thead {
        display: none;
    }

    .research-table,
    .research-table tbody,
    .research-table tr,
    .research-table td {
        display: block;
        width: 100%;
    }

    .research-table tr {
        background: #FFFFFF;
        border-radius: var(--border-radius-md);
        box-shadow: var(--shadow-md);
        padding: var(--space-sm);
        margin-bottom: var(--space-md);
        border: none;
    }

    .research-table td {
        border: none;
        padding: var(--space-xs) 0;
        text-align: left;
    }

    .research-table td:first-child {
        font-size: var(--font-size-lg);
        font-weight: 600;
        color: var(--color-black);
        margin-bottom: var(--space-xs);
    }

    .research-table td:nth-child(2):not(:empty)::before {
        content: "Categorie: ";
        font-weight: 600;
        color: var(--color-mid);
    }

    .research-table td:nth-child(2) {
        font-size: var(--font-size-sm);
        color: var(--color-dark);
        margin-bottom: var(--space-sm);
    }

    .research-table td:nth-child(3) {
        margin: var(--space-sm) 0;
    }

    .research-table td:nth-child(4)::before {
        content: "Update: ";
        font-weight: 600;
        color: var(--color-mid);
    }

    .research-table td:nth-child(4) {
        font-size: var(--font-size-sm);
        color: var(--color-dark);
    }

    .research-table td:nth-child(3) .button,
    .research-table td:nth-child(3) .status-badge {
        width: 100%;
    }

    .button {
        font-size: var(--font-size-base);
        padding: var(--space-sm) var(--space-lg);
    }

    .container {
        padding-left: var(--space-md);
        padding-right: var(--space-md);
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    .cta-buttons,
    .site-footer {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .character-container {
        break-inside: avoid;
    }
}