/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&family=Fraunces:wght@600;700&display=swap');

:root {
    /* Colors */
    --color-eggshell: #F8F9FB;
    --color-forest-green: #1B4D3E;
    --color-text-dark: #121416;
    --color-text-light: #F8F9FB;
    --color-footer-bg: #121416;
    --color-company-blue: #295284;
    
    /* Typography */
    --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Fraunces', Georgia, serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-eggshell);
    color: var(--color-text-dark);
    line-height: 1.6;
    font-size: 16px;
}

/* Navigation */
.navbar {
    background-color: var(--color-eggshell);
    padding: 2rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: none;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: contain;
}

.brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-dark);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-right {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-right a {
    color: var(--color-text-dark);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 400;
    position: relative;
    transition: color 0.3s ease;
}

.nav-right a:hover {
    color: var(--color-forest-green);
}

.nav-right a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-forest-green);
    transition: width 0.3s ease;
}

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

/* Hero Section */
.hero {
    max-width: 1200px;
    margin: 0 auto;
    padding: 8rem 2rem 6rem;
    display: flex;
    flex-direction: row;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 4rem;
    line-height: 1.1;
    color: var(--color-forest-green);
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--color-text-dark);
    opacity: 0.7;
    font-weight: 400;
    line-height: 1.6;
}

.hero-image-placeholder {
    flex: 1;
    width: 100%;
    max-width: 500px;
    height: 500px;
    background: linear-gradient(135deg, rgba(27, 77, 62, 0.1) 0%, rgba(27, 77, 62, 0.05) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed rgba(27, 77, 62, 0.2);
}

.hero-image-placeholder span {
    color: var(--color-forest-green);
    font-size: 1.125rem;
    opacity: 0.5;
}

/* Content Sections */
.content-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.content-section h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    color: var(--color-forest-green);
    margin-bottom: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(27, 77, 62, 0.1);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(27, 77, 62, 0.1);
    border-color: rgba(27, 77, 62, 0.3);
}

.project-card img {
    width: 100%;
    height: 240px;
    object-fit: cover;
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    font-size: 1.25rem;
    color: var(--color-forest-green);
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.project-content p {
    font-size: 0.95rem;
    color: var(--color-text-dark);
    opacity: 0.7;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.category {
    color: var(--color-text-dark);
    opacity: 0.6;
}

.status {
    color: var(--color-forest-green);
    font-weight: 500;
}

/* Publications Section */
.publications-section {
    background: white;
    padding: 4rem 2rem;
    margin: 2rem 0;
}

.publications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
}

.publication-card {
    background: var(--color-eggshell);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(27, 77, 62, 0.1);
    transition: all 0.3s ease;
}

.publication-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(27, 77, 62, 0.1);
    border-color: rgba(27, 77, 62, 0.3);
}

.publication-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.publication-content {
    padding: 1.5rem;
}

.publication-content h3 {
    font-size: 1.125rem;
    color: var(--color-forest-green);
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.publication-content p {
    font-size: 0.9rem;
    color: var(--color-text-dark);
    opacity: 0.7;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.publication-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
}

.venue {
    color: var(--color-text-dark);
    opacity: 0.6;
}

.status-presented {
    color: var(--color-company-blue);
    font-weight: 500;
}

.status-published {
    color: var(--color-forest-green);
    font-weight: 500;
}

.status-ongoing {
    color: #D4A017;
    font-weight: 500;
}

.status-review {
    color: #7851A9;
    font-weight: 500;
}

/* Timeline Section */
.whats-next-section {
    background: white;
    padding: 4rem 2rem;
    margin: 2rem 0;
}

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

.timeline-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 30px;
    bottom: -30px;
    width: 2px;
    background: rgba(27, 77, 62, 0.2);
}

.timeline-item:last-child::before {
    display: none;
}

.timeline-dot {
    width: 32px;
    height: 32px;
    background: var(--color-forest-green);
    border-radius: 50%;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.timeline-content {
    flex: 1;
}

.timeline-content h3 {
    font-size: 1.25rem;
    color: var(--color-forest-green);
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.timeline-content ul {
    list-style: none;
    padding: 0;
}

.timeline-content li {
    font-size: 0.95rem;
    color: var(--color-text-dark);
    opacity: 0.8;
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.timeline-content li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-forest-green);
}

/* Contact Section */
.contact-section {
    max-width: 600px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-dark);
}

.form-group input,
.form-group textarea {
    padding: 0.75rem 1rem;
    border: 1px solid rgba(27, 77, 62, 0.2);
    border-radius: 8px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    background: white;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-forest-green);
    box-shadow: 0 0 0 3px rgba(27, 77, 62, 0.1);
}

.submit-btn {
    padding: 1rem 2rem;
    background: var(--color-forest-green);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-sans);
}

.submit-btn:hover {
    background: #153d30;
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background-color: var(--color-footer-bg);
    color: var(--color-text-light);
    padding: 3rem 0;
    margin-top: 6rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer p {
    opacity: 0.8;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--color-text-light);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
}

/* Theses Page */
.theses-hero {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.theses-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    color: var(--color-forest-green);
    margin-bottom: 2rem;
    letter-spacing: -0.03em;
}

.theses-body {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-dark);
}

.theses-body .lead-text {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-forest-green);
    margin-bottom: 2rem;
}

.theses-body h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--color-forest-green);
    margin: 3rem 0 1.5rem;
}

.theses-body p {
    margin-bottom: 1.5rem;
}

.theses-body strong {
    color: var(--color-forest-green);
    font-weight: 600;
}

.beliefs-list {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
}

.beliefs-list li {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
    position: relative;
}

.beliefs-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-forest-green);
    font-size: 1.25rem;
}

/* Arts Page */
.arts-hero {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem 2rem;
    text-align: center;
}

.arts-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    color: var(--color-forest-green);
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}

.arts-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-dark);
    opacity: 0.7;
}

.art-section,
.music-section,
.design-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.art-section h2,
.music-section h2,
.design-section h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    color: var(--color-forest-green);
    margin-bottom: 2rem;
}

.art-placeholder,
.music-placeholder,
.design-placeholder {
    min-height: 400px;
    background: linear-gradient(135deg, rgba(27, 77, 62, 0.1) 0%, rgba(27, 77, 62, 0.05) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed rgba(27, 77, 62, 0.2);
}

.art-placeholder p,
.music-placeholder p,
.design-placeholder p {
    color: var(--color-forest-green);
    font-size: 1.125rem;
    opacity: 0.5;
}

/* Case Studies Page */
.case-studies-hero {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem 2rem;
    text-align: center;
}

.case-studies-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    color: var(--color-forest-green);
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}

.case-studies-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-dark);
    opacity: 0.7;
    max-width: 640px;
    margin: 0 auto;
}

.case-studies-list {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 2rem 6rem;
}

.case-study {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 4rem 0;
    border-bottom: 1px solid rgba(27, 77, 62, 0.12);
}

.case-study:last-child {
    border-bottom: none;
}

.case-study-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0 1rem;
}

.case-study--reverse .case-study-text {
    grid-column: 2;
    grid-row: 1;
}

.case-study--reverse .case-study-viewer {
    grid-column: 1;
    grid-row: 1;
}

.case-study-label {
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-forest-green);
    opacity: 0.75;
    margin-bottom: 0.75rem;
}

.case-study-heading {
    font-family: var(--font-display);
    font-size: 2.25rem;
    color: var(--color-forest-green);
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.case-study-description {
    font-size: 1.0625rem;
    line-height: 1.75;
    color: var(--color-text-dark);
    opacity: 0.85;
    max-width: 28rem;
    margin-bottom: 1.5rem;
}

.case-study-download {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-forest-green);
    text-decoration: none;
    border-bottom: 1px solid rgba(27, 77, 62, 0.35);
    transition: border-color 0.3s ease, opacity 0.3s ease;
}

.case-study-download:hover {
    border-color: var(--color-forest-green);
    opacity: 0.8;
}

.case-study-viewer {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 520px;
}

.case-study-viewer iframe {
    width: 100%;
    max-width: 480px;
    height: 620px;
    border: none;
    border-radius: 12px;
    background: #fff;
    box-shadow:
        0 4px 24px rgba(18, 20, 22, 0.08),
        0 0 0 1px rgba(27, 77, 62, 0.08);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .nav-right {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    
    .hero {
        padding: 4rem 2rem 3rem;
        flex-direction: column;
    }
    
    .hero-image-placeholder {
        display: none;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .content-section h2 {
        font-size: 2rem;
    }
    
    .projects-grid,
    .publications-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
    
    .theses-title,
    .arts-title,
    .case-studies-title {
        font-size: 2.5rem;
    }

    .case-study,
    .case-study--reverse {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 3rem 0;
    }

    .case-study--reverse .case-study-text,
    .case-study--reverse .case-study-viewer {
        grid-column: auto;
        grid-row: auto;
    }

    .case-study-viewer {
        min-height: 420px;
    }

    .case-study-viewer iframe {
        max-width: 100%;
        height: 480px;
    }

    .case-study-heading {
        font-size: 1.75rem;
    }
    
    .timeline-item {
        gap: 1rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.hero-image-placeholder {
    animation: fadeInUp 0.8s ease-out;
}

.hero-image-placeholder {
    animation-delay: 0.2s;
    animation-fill-mode: both;
}