/* 
   Carla Darwiche - Portfolio Styles
   Gen Z Creative Studio Style
*/

:root {
    /* Color Palette */
    --bg-color: #FAFAFA;
    --text-primary: #1A1A1A;
    --text-secondary: #6B6B6B;
    
    --accent-red: #8f2f27; /* Deeper red for text highlights */
    --accent-pink: #FF6B6B; /* Vibrant accent */
    --accent-lavender: #A78BFA;
    --accent-mint: #34D399;
    
    --card-bg: #FFFFFF;
    --border-color: #E5E5E5;
    
    /* Typography */
    --font-heading: 'Clash Display', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-accent: 'Syne', sans-serif;
    
    /* Spacing */
    --container-width: 1200px;
    --gap-sm: 1rem;
    --gap-md: 2rem;
    --gap-lg: 4rem;
    --gap-xl: 8rem;
    
    /* Transitions */
    --ease-smooth: cubic-bezier(0.65, 0, 0.35, 1);
}

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

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Grain Overlay */
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
    opacity: 0.4;
}

/* Container */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--gap-sm);
}

/* Typography Helpers */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 100;
    transition: all 0.4s var(--ease-smooth);
    background: rgba(250, 250, 250, 0.85);
    backdrop-filter: blur(10px);
}

.navbar.scrolled {
    padding: 1rem 0;
    box-shadow: 0 5px 20px rgba(0,0,0,0.03);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-accent);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-primary);
}

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

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    padding-bottom: 2px;
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: 0.3s;
}

/* Hero Section */
.hero-section {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    padding-top: 4rem;
}

.subtitle {
    font-family: var(--font-accent);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    display: block;
}

.hero-content h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--text-primary), #4a4a4a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.university {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-weight: 400;
}

.cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Buttons */
.btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s var(--ease-smooth);
    border: 1px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--text-primary);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    background-color: #000;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border-color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: var(--text-primary);
    color: #fff;
}

.scroll-hint {
    position: absolute;
    bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {transform: translateY(0);}
    40% {transform: translateY(-10px);}
    60% {transform: translateY(-5px);}
}

/* About Section */
.about-section {
    padding: var(--gap-xl) 0;
}

.section-header {
    margin-bottom: var(--gap-lg);
    text-align: center;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.bio-text {
    font-size: clamp(1.2rem, 2.5vw, 1.5rem);
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 3rem;
    line-height: 1.5;
}

.tags-group {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.tag {
    padding: 0.5rem 1.2rem;
    border-radius: 100px;
    background-color: #fff;
    border: 1px solid var(--border-color);
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: 0.3s;
}

.tag:hover {
    border-color: var(--text-primary);
    transform: translateY(-2px);
    color: var(--text-primary);
}

/* Work Section */
.work-section {
    padding: var(--gap-xl) 0;
    background-color: #fff;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    display: block;
    group: hover;
}

.card-image {
    width: 100%;
    aspect-ratio: 4/3;
    background-color: #f0f0f0;
    border-radius: 1rem;
    overflow: hidden;
    margin-bottom: 1.5rem;
    position: relative;
    transition: transform 0.4s var(--ease-smooth);
}

.project-card:hover .card-image {
    transform: scale(0.98);
}

.placeholder-img {
    width: 100%;
    height: 100%;
    transition: transform 0.6s var(--ease-smooth);
}

.project-card:hover .placeholder-img {
    transform: scale(1.05);
}

.color-1 { background: linear-gradient(135deg, #FF9A9E 0%, #FECFEF 100%); }
.color-2 { background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%); }
.color-3 { background: linear-gradient(135deg, #e0c3fc 0%, #8ec5fc 100%); }

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

.category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    display: block;
}

.card-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.card-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Skills Section */
.skills-section {
    padding: var(--gap-xl) 0;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 4rem;
    max-width: 900px;
    margin: 0 auto;
}

.skill-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
    display: inline-block;
}

.skill-item ul li {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Contact Section */
.contact-section {
    padding: var(--gap-xl) 0;
    margin-bottom: 4rem;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    max-width: 900px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background-color: #fff;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 1rem;
    transition: 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--text-primary);
}

.social-links h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.social-link {
    font-size: 1.1rem;
    color: var(--text-secondary);
    transition: 0.3s;
    display: inline-flex;
    align-items: center;
}

.social-link:hover {
    color: var(--text-primary);
    transform: translateX(5px);
}

/* Footer */
footer {
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.8s var(--ease-smooth) forwards;
}

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

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* Scroll Reveal Class (handled by JS) */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s var(--ease-smooth);
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-content {
        padding: 0 1rem;
    }
}