/* Rodrigo Etcheto - Personal Site */

/* ===== IMPORT DESIGN SYSTEM ===== */
@import url('reset.css');
@import url('variables.css');
@import url('typography.css');
@import url('animations.css');
@import url('components.css');

/* ===== GLOBAL OVERRIDES ===== */

body {
    background-color: var(--color-bg-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Support legacy color variables for backward compatibility */
:root {
    --bg-primary: var(--color-bg-primary);
    --bg-secondary: var(--color-bg-secondary);
    --bg-tertiary: var(--color-bg-elevated);
    --text-primary: var(--color-text-primary);
    --text-secondary: var(--color-text-secondary);
    --text-muted: var(--color-text-tertiary);
    --accent: var(--color-accent-cool);
    --accent-hover: var(--color-accent-warm);
    --border-color: var(--border-color);
    --success: #4caf50;
    --max-width: 900px;
}

/* Navigation */
nav {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

nav .site-name {
    font-size: 1.1rem;
    font-weight: normal;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-primary);
}

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

nav .nav-links {
    display: flex;
    gap: 1.8rem;
    list-style: none;
}

nav .nav-links a {
    color: var(--text-secondary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color 0.2s;
}

nav .nav-links a:hover,
nav .nav-links a.active {
    color: var(--text-primary);
}

/* Hamburger menu for mobile */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Main Content */
main {
    flex: 1;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 3rem 2rem;
    width: 100%;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 4rem 0;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: normal;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.hero .tagline {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: 2rem;
}

.hero .cta {
    display: inline-block;
    padding: 0.8rem 2rem;
    border: 1px solid var(--accent);
    color: var(--accent);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: all 0.3s;
}

.hero .cta:hover {
    background-color: var(--accent);
    color: var(--bg-primary);
}

/* Social Links */
.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.social-links a {
    color: var(--text-secondary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: all 0.2s;
}

.social-links a:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h1 {
    font-size: 2rem;
    font-weight: normal;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.section-header p {
    color: var(--text-secondary);
    font-style: italic;
}

/* Card Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
    transform: translateY(-3px);
    border-color: var(--text-muted);
}

.card a {
    color: inherit;
    display: block;
}

.card .card-image {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    display: block;
}

.card .card-body {
    padding: 1.2rem;
}

.card .card-title {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
}

.card .card-meta {
    color: var(--text-muted);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.8rem;
}

.card .card-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* Video Grid */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.video-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.video-item .video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
}

.video-item .video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-item .video-title {
    padding: 1rem 1.2rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* Photography Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.gallery-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.2s, border-color 0.2s;
}

.gallery-item:hover {
    transform: translateY(-3px);
    border-color: var(--text-muted);
}

.gallery-item .gallery-placeholder {
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-style: italic;
}

.gallery-item .gallery-title {
    padding: 1rem;
    font-size: 1rem;
    text-align: center;
}

/* Writings / Course */
.writing-section {
    max-width: 650px;
    margin: 0 auto;
}

.writing-section h2 {
    font-size: 1.4rem;
    font-weight: normal;
    margin: 2.5rem 0 1rem;
    color: var(--accent);
}

.writing-section .lesson-list {
    list-style: none;
    counter-reset: lesson;
}

.writing-section .lesson-list li {
    counter-increment: lesson;
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.writing-section .lesson-list li::before {
    content: counter(lesson) ". ";
    color: var(--text-muted);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.85rem;
}

/* Research Articles */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.article-card {
    display: block;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    transition: transform 0.2s, border-color 0.2s;
    color: inherit;
}

.article-card:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
    color: inherit;
}

.article-card h2 {
    font-size: 1.2rem;
    font-weight: normal;
    margin-bottom: 0.5rem;
}

.article-card .article-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 0.8rem;
}

.article-card .article-meta {
    display: flex;
    gap: 1.5rem;
    color: var(--text-muted);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.8rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Streaming Embeds */
.embed-section {
    margin: 2rem 0;
}

.embed-section h2 {
    font-size: 1.2rem;
    font-weight: normal;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.spotify-embed {
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 2rem;
}

.streaming-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 2rem 0;
}

.streaming-links a {
    padding: 0.6rem 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-secondary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.streaming-links a:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Footer */
footer {
    border-top: 1px solid var(--border-color);
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.8rem;
}

footer a {
    color: var(--text-muted);
}

footer a:hover {
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    nav .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 1rem 2rem;
        gap: 0.8rem;
    }

    nav .nav-links.open {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

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

    main {
        padding: 2rem 1rem;
    }
}

@media (max-width: 480px) {
    .card-grid {
        grid-template-columns: 1fr;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .social-links {
        gap: 0.8rem;
    }

    .social-links a {
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
    }
}