:root {
    --color-bg: #faf8f4;
    --color-text: #1a1a1a;
    --color-accent: #d4621f;
    --color-muted: #6b6b6b;
    --color-border: #e0ddd6;
    --color-hover: #b8501a;
    
    --font-display: 'Fraunces', serif;
    --font-mono: 'IBM Plex Mono', monospace;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-mono);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 15px;
    overflow-x: hidden;
}

.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.015) 2px, rgba(0,0,0,0.015) 4px);
    pointer-events: none;
    z-index: 9999;
    opacity: 0.4;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(250, 248, 244, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    animation: slideDown 0.6s ease;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.nav-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
    text-decoration: none;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: rotate(-5deg) scale(1.05);
}

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

.nav-links a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9rem;
    position: relative;
    transition: color 0.3s ease;
}

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

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

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

/* Hero Section */
.hero {
    margin-top: 5rem;
    padding: var(--spacing-xl) 2rem;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    align-items: center;
    min-height: 70vh;
    position: relative;
}

.hero-content {
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

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

.hero-label {
    font-size: 0.85rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.hero-tagline {
    font-size: 1.1rem;
    color: var(--color-muted);
    margin-bottom: var(--spacing-md);
    max-width: 600px;
}

.hero-links {
    display: flex;
    gap: 1.5rem;
    margin-top: var(--spacing-md);
}

.hero-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: transparent;
    border: 2px solid var(--color-border);
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.hero-link:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
    transform: translateY(-2px);
}

.hero-decoration {
    position: relative;
    height: 400px;
    animation: fadeIn 1s ease 0.6s backwards;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.decoration-box {
    position: absolute;
    border: 2px solid var(--color-border);
    background-color: var(--color-bg);
}

.box-1 {
    width: 200px;
    height: 200px;
    top: 0;
    right: 100px;
    animation: float 6s ease-in-out infinite;
}

.box-2 {
    width: 150px;
    height: 150px;
    bottom: 50px;
    right: 50px;
    background-color: var(--color-accent);
    opacity: 0.1;
    animation: float 8s ease-in-out infinite 1s;
}

.box-3 {
    width: 100px;
    height: 100px;
    top: 150px;
    right: 0;
    animation: float 7s ease-in-out infinite 0.5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

/* Projects Section */
.projects {
    padding: var(--spacing-xl) 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.section-line {
    width: 100px;
    height: 3px;
    background-color: var(--color-accent);
}

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

.project-card {
    background-color: white;
    border: 2px solid var(--color-border);
    padding: 2rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease backwards;
}

.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(3) { animation-delay: 0.3s; }
.project-card:nth-child(4) { animation-delay: 0.4s; }

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background-color: var(--color-accent);
    transition: height 0.4s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.project-card:hover::before {
    height: 100%;
}

.project-number {
    font-size: 0.75rem;
    color: var(--color-accent);
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-xs);
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.project-description {
    color: var(--color-muted);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-md);
}

.tech-tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-accent);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: gap 0.3s ease;
}

.project-link:hover {
    gap: 0.75rem;
}

.project-link svg {
    width: 16px;
    height: 16px;
}

/* Contact Section */
.contact {
    padding: var(--spacing-xl) 2rem;
    background-color: var(--color-text);
    color: var(--color-bg);
}

.contact-content {
    max-width: 1400px;
    margin: 0 auto;
}

.contact-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.contact-method {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 2rem;
    border: 2px solid rgba(250, 248, 244, 0.2);
    text-decoration: none;
    color: var(--color-bg);
    transition: all 0.3s ease;
}

.contact-method:hover {
    border-color: var(--color-accent);
    transform: translateX(10px);
}

.contact-label {
    font-size: 0.85rem;
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.contact-value {
    font-size: 1.1rem;
}

/* Footer */
.footer {
    padding: var(--spacing-md) 2rem;
    background-color: var(--color-text);
    color: var(--color-bg);
    border-top: 1px solid rgba(250, 248, 244, 0.1);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.footer-note {
    opacity: 0.7;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-decoration {
        height: 250px;
    }
    
    .decoration-box {
        transform: scale(0.7);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-content {
        padding: 1rem;
    }
    
    .hero {
        padding: var(--spacing-lg) 1rem;
    }
    
    .projects {
        padding: var(--spacing-lg) 1rem;
    }
    
    .contact {
        padding: var(--spacing-lg) 1rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 640px) {
    .hero-links {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-link {
        justify-content: center;
    }
    
    .nav-links {
        gap: 1rem;
    }
}

.project-status {
    display: inline-block;
    font-size: 0.7rem;
    padding: 0.25rem 0.6rem;
    border-radius: 2px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.status-completed {
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #a5d6a7;
}

.status-ongoing {
    background-color: #fff3e0;
    color: #e65100;
    border: 1px solid #ffb74d;
}

.status-work-in-progress {
    background-color: #e3f2fd;
    color: #1565c0;
    border: 1px solid #64b5f6;
}