/* ==========================================================================
   CSS Variables & Typography
   ========================================================================== */
   :root {
    /* Color Palette */
    --bg-color: #0B0B0B;
    --card-bg: #141414;
    --border-color: #232323;
    --text-primary: #F5F5F5;
    --text-secondary: #9A9A9A;
    --accent-color: #FFFFFF;
    
    /* Layout */
    --max-width: 1200px;
    --radius: 16px;
    --spacing-sm: 1rem;
    --spacing-md: 2.5rem;
    --spacing-lg: 5rem;
    --spacing-xl: 10rem;
    
    /* Animation Easing */
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.3s var(--ease);
    --transition-slow: 0.6s var(--ease);
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', 'Manrope', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: var(--text-primary);
    color: var(--bg-color);
}

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

img, video {
    max-width: 100%;
    display: block;
    border-radius: var(--radius);
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4 {
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--accent-color);
}

.title { font-size: clamp(4rem, 8vw, 8rem); font-weight: 600; letter-spacing: -0.04em; }
.subtitle { font-size: 1.2rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 1rem; }
.section-title { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: var(--spacing-lg); }
.subsection-title { font-size: 1.5rem; margin: var(--spacing-lg) 0 var(--spacing-md); color: var(--text-secondary); }
p { font-size: 1.125rem; color: var(--text-secondary); margin-bottom: 1.5rem; }

/* ==========================================================================
   Layout & Reusables
   ========================================================================== */
.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-xl) 5%;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 100px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 1rem;
}

.btn-primary { background: var(--accent-color); color: var(--bg-color); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 20px rgba(255,255,255,0.1); }
.btn-secondary { background: transparent; color: var(--text-primary); }
.btn-secondary:hover { color: var(--text-secondary); }
.btn-outline { border: 1px solid var(--border-color); }
.btn-outline:hover { background: var(--text-primary); color: var(--bg-color); }

/* ==========================================================================
   Custom Cursor & Progress Bar
   ========================================================================== */
@media (pointer: fine) {
    body { cursor: none; }
    .custom-cursor {
        position: fixed;
        top: 0; left: 0;
        width: 20px; height: 20px;
        background-color: var(--accent-color);
        border-radius: 50%;
        pointer-events: none;
        z-index: 9999;
        mix-blend-mode: difference;
        transform: translate(-50%, -50%);
        transition: width 0.2s, height 0.2s, background-color 0.2s;
    }
    .custom-cursor.hover {
        width: 60px; height: 60px;
        background-color: rgba(255,255,255,0.2);
        border: 1px solid var(--accent-color);
        mix-blend-mode: normal;
    }
}

.progress-bar {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    background: var(--accent-color);
    width: 0%;
    z-index: 10000;
    transition: width 0.1s;
}

/* ==========================================================================
   Header Navigation
   ========================================================================== */
header {
    position: fixed;
    top: 0; width: 100%;
    z-index: 1000;
    padding: 1.5rem 5%;
    transition: background var(--transition-fast), backdrop-filter var(--transition-fast);
}
header.scrolled {
    background: rgba(11, 11, 11, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}
.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.05em; }
.nav-links { display: flex; gap: 2.5rem; }
.nav-links a { font-size: 0.9rem; font-weight: 500; color: var(--text-secondary); }
.nav-links a:hover { color: var(--text-primary); }

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 5%;
    position: relative;
}
.hero-content { max-width: 800px; }
.tagline { font-size: clamp(1.2rem, 2vw, 1.5rem); margin: 2rem 0; color: var(--text-secondary); }
.hero-actions { display: flex; gap: 1rem; justify-content: center; margin-top: 3rem; }

/* ==========================================================================
   Showreel Section
   ========================================================================== */
.showreel { text-align: center; }
.video-wrapper {
    position: relative;
    border: 1px solid var(--border-color);
    padding: 0.5rem;
    border-radius: calc(var(--radius) + 4px);
    background: var(--card-bg);
}
.showreel-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 3rem;
}
.showreel-tags span {
    font-size: 0.875rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 100px;
}

/* ==========================================================================
   Projects Grid
   ========================================================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-md);
}
.project-card {
    cursor: pointer;
    group: relative;
}
.card-image {
    overflow: hidden;
    border-radius: var(--radius);
    aspect-ratio: 16/9;
    background: var(--card-bg);
}
.card-image img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}
.project-card:hover .card-image img { transform: scale(1.05); }
.card-content { padding: 1.5rem 0; }
.card-category { font-size: 0.875rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.5rem; }
.card-title { font-size: 1.5rem; margin: 0; }

/* ==========================================================================
   About & Services
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}
.service-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: var(--radius);
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}
.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--text-secondary);
}
.service-card h3 { margin-bottom: 1rem; }

.software-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}
.software-item {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    padding: 1rem 2rem;
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-weight: 500;
}

/* ==========================================================================
   Workflow Timeline
   ========================================================================== */
.timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    position: relative;
}
.timeline::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 1px;
    background: var(--border-color);
}
.timeline-step { padding-top: 2rem; position: relative; }
.timeline-step::before {
    content: '';
    position: absolute;
    top: -4px; left: 0;
    width: 8px; height: 8px;
    background: var(--text-secondary);
    border-radius: 50%;
}
.timeline-step h4 { margin-bottom: 0.5rem; font-size: 1.25rem; }

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq-accordion { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border-color); }
.faq-question {
    width: 100%;
    text-align: left;
    background: none; border: none;
    color: var(--text-primary);
    font-size: 1.25rem; font-family: inherit; font-weight: 500;
    padding: 2rem 0;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--text-secondary);
    transition: transform var(--transition-fast);
}
.faq-question[aria-expanded="true"]::after { transform: rotate(45deg); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-fast);
}
.faq-answer p { padding-bottom: 2rem; margin: 0; }

/* ==========================================================================
   Contact & Footer
   ========================================================================== */
.contact { text-align: center; }
.email-link {
    display: block;
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 300;
    margin: 2rem 0;
    letter-spacing: -0.02em;
}
.email-link:hover { color: var(--text-secondary); }
.social-links { display: flex; justify-content: center; gap: 2rem; margin-top: 2rem; }
.social-links a { color: var(--text-secondary); text-transform: uppercase; font-size: 0.875rem; letter-spacing: 0.1em; }
.social-links a:hover { color: var(--text-primary); }

footer {
    border-top: 1px solid var(--border-color);
    padding: 2rem 5%;
}
.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}
.back-to-top {
    background: none; border: none; color: inherit;
    cursor: pointer; font-family: inherit;
}
.back-to-top:hover { color: var(--text-primary); }

/* ==========================================================================
   Modal (Lightbox)
   ========================================================================== */
.modal {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
}
.modal.active { opacity: 1; pointer-events: auto; }
.modal-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(11, 11, 11, 0.95);
    backdrop-filter: blur(10px);
}
.modal-content {
    position: relative;
    width: 90%; max-width: 1000px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 2rem;
    transform: translateY(20px);
    transition: transform var(--transition-fast);
}
.modal.active .modal-content { transform: translateY(0); }
.close-modal {
    position: absolute;
    top: 1rem; right: 1rem;
    background: var(--bg-color); border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 40px; height: 40px;
    border-radius: 50%;
    cursor: pointer; z-index: 10;
    font-size: 1.2rem;
}
.modal-video {
    aspect-ratio: 16/9;
    background: #000;
    border-radius: calc(var(--radius) - 4px);
    overflow: hidden;
    margin-bottom: 2rem;
}
.modal-video video { width: 100%; height: 100%; object-fit: cover; }
.modal-details { display: grid; gap: 1.5rem; }
.modal-header h2 { font-size: 2rem; margin-top: 0.5rem; }
.modal-label { font-size: 0.875rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.05em; }
.modal-meta { display: flex; gap: 2rem; color: var(--text-secondary); font-size: 0.9rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--border-color); }
.modal-meta strong { color: var(--text-primary); font-weight: 500; }
.modal-desc h3 { font-size: 1.2rem; margin: 1.5rem 0 0.5rem; }

/* ==========================================================================
   Animations & Responsive
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.active { opacity: 1; transform: translateY(0); }

@media (max-width: 768px) {
    .nav-links { display: none; } /* Add hamburger menu logic for mobile if needed */
    .about-grid { grid-template-columns: 1fr; }
    .timeline::before { display: none; }
    .timeline-step::before { display: none; }
    .timeline-step { border-left: 1px solid var(--border-color); padding-left: 1.5rem; padding-top: 0; margin-bottom: 2rem; }
    .modal-content { padding: 1rem; }
    .modal-meta { flex-direction: column; gap: 0.5rem; }
}