/* ========================================
   Option 4: Bold Startup Style
   High contrast, energetic, confident
   ======================================== */

:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-card: #111111;

    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.6);
    --text-muted: rgba(255, 255, 255, 0.4);

    --accent: #2563eb;
    --accent-hover: #3b82f6;
    --accent-glow: rgba(37, 99, 235, 0.3);

    --border-color: rgba(255, 255, 255, 0.1);
    --border-hover: rgba(255, 255, 255, 0.2);

    --font-display: 'Syne', sans-serif;
    --font-body: 'DM Sans', sans-serif;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;

    --transition-fast: 0.15s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
}

body.has-custom-cursor {
    cursor: none;
}

/* Custom Cursor - GPU accelerated with transform */
.cursor {
    position: fixed;
    top: 0;
    left: 0;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: difference;
    will-change: transform;
}

.cursor-follower {
    position: fixed;
    top: 0;
    left: 0;
    width: 40px;
    height: 40px;
    border: 1px solid var(--accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    will-change: transform;
}

.cursor-follower.hovering {
    width: 60px;
    height: 60px;
    border-color: var(--text-primary);
}

@media (max-width: 768px) {
    body { cursor: auto; }
    .cursor, .cursor-follower { display: none; }
}

/* Selection */
::selection {
    background: var(--accent);
    color: var(--text-primary);
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 24px 48px;
    mix-blend-mode: difference;
}

.nav-container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 48px;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.5px;
    position: relative;
}

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

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

.nav-cta {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: var(--text-primary);
    color: var(--bg-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    border-radius: 100px;
    transition: var(--transition-medium);
    mix-blend-mode: normal;
}

.nav-cta:hover {
    gap: 16px;
}

.cta-arrow {
    transition: var(--transition-fast);
}

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 8px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu span {
    display: block;
    width: 28px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 120px 48px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.hero-line {
    position: absolute;
    width: 1px;
    height: 100%;
    background: linear-gradient(to bottom, transparent, var(--border-color), transparent);
}

.line-1 { left: 25%; }
.line-2 { left: 50%; }
.line-3 { left: 75%; }

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

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
    font-size: 14px;
    color: var(--text-secondary);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.tag-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(60px, 12vw, 140px);
    font-weight: 800;
    line-height: 0.95;
    letter-spacing: -3px;
    margin-bottom: 32px;
}

.title-word {
    display: inline-block;
    opacity: 0;
    transform: translateY(100px);
    animation: revealWord 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.title-word:nth-child(1) { animation-delay: 0.1s; }
.title-word:nth-child(2) { animation-delay: 0.2s; }
.title-word:nth-child(4) { animation-delay: 0.3s; }
.title-word:nth-child(5) { animation-delay: 0.4s; }

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

.accent {
    color: var(--accent);
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 48px;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    align-items: center;
    gap: 32px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 20px 36px;
    background: var(--accent);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    border-radius: 100px;
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-slow);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    background: var(--accent-hover);
    gap: 16px;
    box-shadow: 0 0 40px var(--accent-glow);
}

.btn-icon {
    font-size: 20px;
    transition: var(--transition-fast);
}

.btn-text {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
}

.btn-line {
    width: 40px;
    height: 1px;
    background: var(--text-secondary);
    transition: var(--transition-medium);
}

.btn-text:hover .btn-line {
    width: 60px;
    background: var(--accent);
}

.hero-scroll {
    position: absolute;
    bottom: 48px;
    left: 48px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-muted);
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.5; transform: scaleY(0.8); }
}

/* Section Styles */
section {
    padding: 120px 48px;
    position: relative;
}

.section-header {
    margin-bottom: 80px;
}

.section-number {
    display: block;
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(48px, 8vw, 80px);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -2px;
}

/* Services */
.services {
    background: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
    background: var(--border-color);
    max-width: 1200px;
}

.service-item {
    background: var(--bg-secondary);
    padding: 48px;
    transition: var(--transition-medium);
    position: relative;
}

.service-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--accent);
    transition: var(--transition-medium);
}

.service-item:hover::before {
    width: 100%;
}

.service-item:hover {
    background: var(--bg-card);
}

.service-index {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 800;
    color: var(--border-color);
    line-height: 1;
    margin-bottom: 24px;
    transition: var(--transition-medium);
}

.service-item:hover .service-index {
    color: var(--accent);
}

.service-title {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-desc {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 24px;
    line-height: 1.6;
}

.service-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.service-tags span {
    padding: 6px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 13px;
    color: var(--text-secondary);
}

/* Work Section */
.work-grid {
    display: grid;
    gap: 48px;
    max-width: 1200px;
}

.work-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    padding: 48px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-medium);
}

.work-item:hover {
    border-color: var(--border-hover);
}

.work-item:not(.featured) {
    grid-template-columns: 1fr;
}

.work-image {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
}

.work-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition-slow);
}

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

.work-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-medium);
}

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

.work-link {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    padding: 16px 32px;
    border: 2px solid var(--text-primary);
    border-radius: 100px;
    transition: var(--transition-fast);
}

.work-link:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.work-content {
    padding-top: 24px;
}

.work-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.work-logo {
    width: 32px;
    height: 32px;
    filter: brightness(0) invert(1);
    opacity: 0.9;
}

.work-category {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 400;
    letter-spacing: 0.5px;
}

.work-title {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    margin: 0;
}

.work-desc {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 24px;
}

.work-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
}

.work-cta:hover {
    gap: 12px;
}

/* Process Section */
.process {
    background: var(--bg-secondary);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2px;
    background: var(--border-color);
    max-width: 1200px;
}

.process-item {
    background: var(--bg-secondary);
    padding: 48px 32px;
    text-align: center;
    transition: var(--transition-medium);
}

.process-item:hover {
    background: var(--bg-card);
}

.process-number {
    font-family: var(--font-display);
    font-size: 64px;
    font-weight: 800;
    color: var(--border-color);
    line-height: 1;
    margin-bottom: 24px;
    transition: var(--transition-medium);
}

.process-item:hover .process-number {
    color: var(--accent);
}

.process-content h3 {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.process-content p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

/* FAQ Section */
.faq-list {
    max-width: 800px;
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 32px 0;
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 600;
    text-align: left;
    cursor: none;
    transition: var(--transition-fast);
}

.faq-question:hover {
    color: var(--accent);
}

.faq-icon {
    font-size: 28px;
    font-weight: 300;
    transition: var(--transition-medium);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: var(--transition-medium);
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding-bottom: 32px;
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.7;
}

/* CTA Section */
.cta {
    position: relative;
    text-align: center;
    padding: 200px 48px;
    overflow: hidden;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(64px, 12vw, 120px);
    font-weight: 800;
    line-height: 0.95;
    letter-spacing: -3px;
    margin-bottom: 24px;
}

.cta-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 48px;
}

.btn-large {
    padding: 24px 48px;
    font-size: 18px;
}

.cta-decoration {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    gap: 100px;
    pointer-events: none;
}

.cta-line {
    width: 1px;
    height: 400px;
    background: linear-gradient(to bottom, transparent, var(--accent), transparent);
    opacity: 0.3;
}

/* Footer */
footer {
    padding: 48px;
    border-top: 1px solid var(--border-color);
}

.footer-container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 2px;
}

.footer-nav {
    display: flex;
    gap: 32px;
}

.footer-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition-fast);
}

.footer-nav a:hover {
    color: var(--text-primary);
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 14px;
}

/* Responsive - Wide desktop */
@media (min-width: 1400px) {
    .services-grid {
        grid-template-columns: repeat(4, 1fr);
        max-width: 1600px;
    }

    .work-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
        max-width: 1600px;
    }

    .work-item {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .work-item.featured {
        grid-template-columns: 1fr;
    }
}

/* Responsive - Tablet and below */
@media (max-width: 1024px) {
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .work-item.featured {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    nav {
        padding: 16px 20px;
        mix-blend-mode: normal;
        background: var(--bg-primary);
    }

    .nav-links,
    .nav-cta {
        display: none;
    }

    .nav-links.active {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg-primary);
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--border-color);
        z-index: 100;
    }

    .mobile-menu {
        display: flex;
    }

    section {
        padding: 60px 20px;
    }

    .section-header {
        margin-bottom: 48px;
    }

    .hero {
        min-height: auto;
        padding: 80px 20px 60px;
    }

    .hero-tag {
        margin-bottom: 20px;
    }

    .hero-title {
        margin-bottom: 24px;
    }

    .hero-subtitle {
        margin-bottom: 32px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }

    .hero-scroll {
        display: none;
    }

    .services-grid,
    .process-grid {
        grid-template-columns: 1fr;
    }

    .service-item,
    .process-item {
        padding: 32px 24px;
    }

    .work-item {
        padding: 24px;
    }

    .work-title {
        font-size: 24px;
    }

    .cta {
        padding: 80px 20px;
    }

    .cta-title {
        font-size: 48px;
    }

    .footer-container {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *, *::before, *::after {
        animation: none !important;
        transition: none !important;
    }

    .title-word {
        opacity: 1;
        transform: none;
    }
}