/* Reset and Base Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&family=Plus+Jakarta+Sans:wght@700;800&display=swap');

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

:root {
    /* Color Palette - Dark Mode */
    --bg-main: #0a0a0a;
    --bg-secondary: #121212;
    --text-primary: #ffffff;
    --text-secondary: #a1a1a1;
    --text-muted: #555555;

    /* Grid & Borders */
    --grid-line: #1a1a1a;
    --grid-count: 4;
    --gap: 0px;
    /* Borders are handled by outline/border properties usually in this style */

    /* Accents */
    --accent-glow: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-heading: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Spacing */
    --container-max: 1440px;
    --header-height: 80px;
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-main);
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Typography Utilities */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    line-height: 1.1;
}

.text-mono {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.85rem;
}

/* Utility Classes */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    border-left: 1px solid var(--grid-line);
    border-right: 1px solid var(--grid-line);
    position: relative;
    background-color: var(--bg-main);
    min-height: 100vh;
    box-shadow: 0 0 100px rgba(0, 0, 0, 0.5);
}

/* Defines the Grid Background Lines */
.grid-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    pointer-events: none;
    z-index: 0;
}

.grid-line {
    border-right: 1px solid var(--grid-line);
    height: 100%;
}

.grid-line:last-child {
    border-right: none;
}

/* Sections - General */
section {
    position: relative;
    z-index: 1;
    border-bottom: 1px solid var(--grid-line);
    padding: 6rem 0;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--grid-line);
    height: var(--header-height);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    border-left: 1px solid var(--grid-line);
    border-right: 1px solid var(--grid-line);
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    text-decoration: none;
    color: var(--text-primary);
}

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

.nav-link {
    font-family: var(--font-mono);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

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

.nav-btn {
    font-family: var(--font-mono);
    background: var(--text-primary);
    color: var(--bg-main);
    border: none;
    padding: 0.75rem 1.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    text-transform: uppercase;
    transition: transform 0.2s ease;
}

.nav-btn:hover {
    transform: translateY(-2px);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
}

/* Hero Section */
.hero {
    padding-top: calc(var(--header-height) + 4rem);
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    width: 100%;
}

.hero-content {
    grid-column: 1 / 5;
    text-align: center;
    padding: 0 2rem;
}

.hero-title {
    font-size: clamp(4rem, 15vw, 12rem);
    font-weight: 800;
    line-height: 0.9;
    letter-spacing: -0.04em;
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.hero-subtitle {
    font-family: var(--font-mono);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1rem;
    line-height: 1.8;
}

/* Services Grid */
.services-section {
    padding: 0;
}

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

.service-item {
    border-right: 1px solid var(--grid-line);
    border-bottom: 1px solid var(--grid-line);
    padding: 4rem 2rem;
    transition: background 0.3s ease;
}

.service-item:nth-child(2n) {
    border-right: none;
}

.service-item:hover {
    background: rgba(255, 255, 255, 0.02);
}

.service-num {
    font-family: var(--font-mono);
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 2rem;
    display: block;
}

.service-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.service-desc {
    color: var(--text-secondary);
    max-width: 400px;
}

/* Portfolio / Showcase */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
}

.portfolio-item {
    grid-column: span 1;
    border-right: 1px solid var(--grid-line);
    border-bottom: 1px solid var(--grid-line);
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    group: pointer;
}

.portfolio-item:nth-child(2n) {
    border-right: none;
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.portfolio-item:hover img {
    transform: scale(1.05);
}

/* Contact Form */
.contact-section {
    padding: 0;
}

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

.contact-info {
    padding: 4rem 2rem;
    border-right: 1px solid var(--grid-line);
}

.contact-form-container {
    padding: 4rem 2rem;
}

.form-group {
    margin-bottom: 2rem;
}

.form-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.form-input,
.form-textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--grid-line);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1.1rem;
    padding: 0.5rem 0;
    transition: border-color 0.3s ease;
}

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

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.submit-btn {
    background: var(--text-primary);
    color: var(--bg-main);
    border: none;
    padding: 1rem 3rem;
    font-family: var(--font-mono);
    font-weight: 600;
    text-transform: uppercase;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
}

/* Footer */
.footer {
    padding: 4rem 2rem;
    border-top: 1px solid var(--grid-line);
    background: var(--bg-main);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.footer-col h4 {
    font-family: var(--font-mono);
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
}

.footer-col a {
    display: block;
    color: var(--text-primary);
    text-decoration: none;
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
    transition: color 0.2s;
}

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

/* Responsive */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-item {
        border-right: none;
    }

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

    .portfolio-item {
        border-right: none;
    }

    .hero-title {
        font-size: 15vw;
    }
}

@media (max-width: 768px) {
    .grid-bg {
        display: none;
        /* Hide grid lines on mobile for cleaner look or reduce count */
    }

    .nav-links {
        display: none;
        /* simple hide for now, need JS for toggle */
    }

    .mobile-menu-toggle {
        display: flex;
    }

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