/* ============================================
   Salomon Alcantar Portfolio
   Modern Architecture Portfolio Design
   ============================================ */

/* CSS Variables */
:root {
    --color-bg: #0b0b1e;
    --color-bg-secondary: #10102a;
    --color-text: #ffffff;
    --color-text-secondary: #9090a8;
    --color-accent: #e5e5e5;
    --color-highlight: #c9a84c;
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    font-feature-settings: "kern" 1, "liga" 1;
}

a {
    color: inherit;
    text-decoration: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 500;
    line-height: 1.1;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 3rem;
    background: rgba(11, 11, 30, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(201, 168, 76, 0.08);
}

.nav-logo a {
    display: flex;
    align-items: center;
}

.nav-logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 3rem;
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    position: relative;
    padding: 0.25rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-highlight);
    transition: width 0.3s var(--transition-smooth);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    padding: 10px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all 0.3s var(--transition-smooth);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    z-index: 999;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s var(--transition-smooth);
}

.mobile-menu.active {
    opacity: 1;
    pointer-events: all;
}

.mobile-menu a {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 500;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 8rem 3rem 4rem;
    position: relative;
}

.hero-content {
    max-width: 1000px;
}

.hero-eyebrow {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-highlight);
    margin-bottom: 2rem;
}

.hero-title {
    font-size: clamp(3rem, 12vw, 9rem);
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 0.95;
    margin-bottom: 2rem;
}

.hero-title .line {
    display: block;
    overflow: hidden;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 580px;
    line-height: 1.75;
    font-weight: 400;
    letter-spacing: 0.005em;
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 3rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.scroll-indicator span {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-secondary);
}

.scroll-line {
    width: 60px;
    height: 1px;
    background: var(--color-text-secondary);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--color-text);
    animation: scrollLine 2s infinite;
}

@keyframes scrollLine {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Section Headers */
.section-header {
    display: flex;
    align-items: baseline;
    gap: 2rem;
    margin-bottom: 4rem;
    padding: 0 3rem;
}

.section-number {
    font-family: var(--font-display);
    font-size: 0.875rem;
    color: var(--color-highlight);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 500;
    letter-spacing: -0.02em;
}

/* Work Section */
.work {
    padding: 8rem 0;
    background: var(--color-bg-secondary);
}

/* Portfolio Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    padding: 0 3rem;
}

.portfolio-item {
    position: relative;
}

.portfolio-link {
    display: block;
}

.portfolio-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    border-radius: 4px;
    margin-bottom: 1.5rem;
}

.portfolio-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.6s var(--transition-smooth);
}

.placeholder-icon {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 300;
    opacity: 0.3;
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.2);
    opacity: 0;
    transition: opacity 0.3s var(--transition-smooth);
}

.portfolio-link:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-link:hover .portfolio-placeholder {
    transform: scale(1.05);
}

.portfolio-info {
    padding: 0 0.5rem;
}

.portfolio-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-secondary);
    display: block;
    margin-bottom: 0.75rem;
}

.portfolio-title {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    transition: color 0.3s var(--transition-smooth);
}

.portfolio-link:hover .portfolio-title {
    color: var(--color-highlight);
}

.portfolio-description {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 1.25rem;
    max-width: 420px;
}

.portfolio-cta {
    font-size: 0.875rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.portfolio-cta .arrow {
    transition: transform 0.3s var(--transition-smooth);
}

.portfolio-link:hover .portfolio-cta .arrow {
    transform: translateX(4px);
}

.portfolio-cta.coming-soon {
    opacity: 0.5;
    font-style: italic;
}

/* About Section */
.about {
    padding: 8rem 0;
}

.about-content {
    padding: 0 3rem;
    max-width: 1400px;
    margin: 0 auto;
}

.about-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 5rem;
    align-items: start;
}

.about-sidebar {
    position: sticky;
    top: 6rem;
}

.about-image {
    margin-bottom: 2rem;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 2px;
    filter: grayscale(15%);
    transition: filter 0.5s var(--transition-smooth);
}

.about-image:hover img {
    filter: grayscale(0%);
}

/* Credentials */
.about-credentials {
    padding-top: 0.5rem;
}

.credentials-name {
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    margin-bottom: 0.25rem;
    color: var(--color-text);
}

.credentials-role {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(201, 168, 76, 0.15);
}

.credentials-section {
    margin-bottom: 1.5rem;
}

.credentials-section:last-child {
    margin-bottom: 0;
}

.credentials-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

.credentials-section p {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--color-text);
    margin: 0;
    opacity: 0.9;
}

.credentials-section p + p {
    margin-top: 0.25rem;
}

/* About Text */
.about-lead {
    font-family: var(--font-display);
    font-size: 1.625rem;
    font-weight: 400;
    line-height: 1.45;
    margin-bottom: 2.5rem;
    color: var(--color-text);
    letter-spacing: -0.01em;
}

.about-text p {
    color: var(--color-text-secondary);
    margin-bottom: 1.75rem;
    font-size: 1.0625rem;
    line-height: 1.85;
}

.about-text p:last-child {
    margin-bottom: 0;
}

/* Portfolio Cover Images */
.portfolio-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--transition-smooth);
}

.portfolio-link:hover .portfolio-cover {
    transform: scale(1.05);
}

/* Contact Section */
.contact {
    padding: 10rem 0;
    background: var(--color-bg-secondary);
}

.contact-content {
    padding: 0 3rem;
    text-align: center;
}

.contact-lead {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 3rem);
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 3.5rem;
    letter-spacing: -0.02em;
}

.contact-methods {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
}

.contact-divider {
    width: 1px;
    height: 3.5rem;
    background: rgba(201, 168, 76, 0.2);
}

.contact-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem 2.5rem;
    border-radius: 8px;
    border: 1px solid rgba(201, 168, 76, 0.12);
    background: rgba(201, 168, 76, 0.04);
    transition: all 0.3s var(--transition-smooth);
}

.contact-link:hover {
    border-color: rgba(201, 168, 76, 0.35);
    background: rgba(201, 168, 76, 0.08);
    transform: translateY(-2px);
}

.contact-label {
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-highlight);
}

.contact-value {
    font-family: var(--font-display);
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    font-weight: 500;
    color: var(--color-text);
    letter-spacing: -0.01em;
}

/* Footer */
.footer {
    padding: 2rem 3rem;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer p {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

/* Project Page Styles */
.project-page {
    min-height: 100vh;
    padding-top: 6rem;
}

.project-header {
    padding: 4rem 3rem;
    max-width: 900px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    transition: color 0.3s var(--transition-smooth);
}

.back-link:hover {
    color: var(--color-text);
}

.project-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-secondary);
    display: block;
    margin-bottom: 1rem;
}

.project-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.project-description {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* PDF Viewer */
.pdf-viewer {
    width: 100%;
    padding: 0 3rem 4rem;
}

.pdf-container {
    background: var(--color-bg-secondary);
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}

.pdf-embed {
    width: 100%;
    height: 85vh;
    border: none;
}

.pdf-download {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--color-text);
    color: var(--color-bg);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 4px;
    margin-top: 2rem;
    transition: all 0.3s var(--transition-smooth);
}

.pdf-download:hover {
    background: var(--color-highlight);
    color: var(--color-text);
}

/* Coming Soon State */
.coming-soon {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    text-align: center;
    padding: 4rem 3rem;
}

.coming-soon-icon {
    font-size: 4rem;
    margin-bottom: 2rem;
    opacity: 0.3;
}

.coming-soon h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.coming-soon p {
    color: var(--color-text-secondary);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 4rem;
    }

    .about-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-sidebar {
        position: relative;
        top: 0;
        display: grid;
        grid-template-columns: 200px 1fr;
        gap: 2.5rem;
        align-items: start;
    }

    .about-image {
        margin-bottom: 0;
    }

    .credentials-role {
        margin-bottom: 1.5rem;
        padding-bottom: 1rem;
    }
}

@media (max-width: 640px) {
    .about-sidebar {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-image {
        max-width: 200px;
    }
}

@media (max-width: 768px) {
    .nav {
        padding: 1rem 1.5rem;
    }

    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .mobile-menu {
        display: flex;
    }

    .hero {
        padding: 6rem 1.5rem 3rem;
    }

    .scroll-indicator {
        left: 1.5rem;
        bottom: 2rem;
    }

    .section-header,
    .about-content,
    .contact-content,
    .portfolio-grid,
    .pdf-viewer,
    .project-header {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    .about-skills {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .pdf-embed {
        height: 60vh;
    }

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

    .contact-divider {
        width: 3.5rem;
        height: 1px;
    }

    .contact-link {
        width: 100%;
        padding: 1.25rem 2rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.8s var(--transition-smooth) forwards;
}

/* Selection */
::selection {
    background: var(--color-highlight);
    color: var(--color-bg);
}