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

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f7;
    --bg-card: rgba(0,0,0,0.02);
    --text-primary: #1a1a2e;
    --text-secondary: #555570;
    --text-muted: #8888a0;
    --accent-1: #6c5ce7;
    --accent-2: #7c6cf0;
    --accent-3: #fd79a8;
    --gradient-main: linear-gradient(135deg, #6c5ce7 0%, #a29bfe 50%, #fd79a8 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(108,92,231,0.08), rgba(253,121,168,0.08));
    --glass-bg: rgba(0,0,0,0.02);
    --glass-border: rgba(0,0,0,0.08);
    --glass-hover: rgba(0,0,0,0.04);
    --nav-scroll-bg: rgba(255,255,255,0.85);
    --mobile-nav-bg: rgba(255,255,255,0.97);
    --service-watermark: rgba(0,0,0,0.03);
    --portfolio-overlay: rgba(255,255,255,0.85);
    --input-bg: rgba(0,0,0,0.03);
    --shadow-soft: 0 4px 24px rgba(0,0,0,0.06);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --font-primary: 'Inter', -apple-system, sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(255,255,255,0.03);
    --text-primary: #f0f0f5;
    --text-secondary: #8888a0;
    --text-muted: #555568;
    --accent-2: #a29bfe;
    --gradient-subtle: linear-gradient(135deg, rgba(108,92,231,0.15), rgba(253,121,168,0.15));
    --glass-bg: rgba(255,255,255,0.04);
    --glass-border: rgba(255,255,255,0.08);
    --glass-hover: rgba(255,255,255,0.08);
    --nav-scroll-bg: rgba(10,10,15,0.85);
    --mobile-nav-bg: rgba(10,10,15,0.97);
    --service-watermark: rgba(255,255,255,0.02);
    --portfolio-overlay: rgba(0,0,0,0.7);
    --input-bg: rgba(255,255,255,0.05);
    --shadow-soft: 0 4px 24px rgba(0,0,0,0.3);
}

html {scroll-behavior:smooth}
body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}
a {color:inherit;text-decoration:none}
img {max-width:100%;display:block}
button {cursor:pointer;border:none;background:none;font-family:inherit}

/* ===== Background Effects ===== */
.bg-grid {
    position:fixed;inset:0;z-index:0;
    background-image:
        linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events:none;
}
[data-theme="dark"] .bg-grid {
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
}
.glow-orb {
    position:fixed;border-radius:50%;filter:blur(120px);opacity:0.15;pointer-events:none;z-index:0;
    animation: float 20s ease-in-out infinite;
}
[data-theme="dark"] .glow-orb {opacity:0.4}
.orb-1 {width:500px;height:500px;background:var(--accent-1);top:-10%;left:-5%;animation-delay:0s}
.orb-2 {width:400px;height:400px;background:var(--accent-3);bottom:-10%;right:-5%;animation-delay:-7s}
.orb-3 {width:300px;height:300px;background:var(--accent-2);top:50%;left:50%;transform:translate(-50%,-50%);animation-delay:-14s}

@keyframes float {
    0%,100%{transform:translate(0,0)}
    25%{transform:translate(30px,-40px)}
    50%{transform:translate(-20px,30px)}
    75%{transform:translate(40px,20px)}
}

/* ===== Utilities ===== */
.container {max-width:1200px;margin:0 auto;padding:0 24px}
.gradient-text {
    background:var(--gradient-main);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
    background-clip:text;
}
.glass-card {
    background:var(--glass-bg);
    border:1px solid var(--glass-border);
    border-radius:var(--radius-lg);
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
    box-shadow:var(--shadow-soft);
    transition:var(--transition);
}
.glass-card:hover {
    background:var(--glass-hover);
    border-color:var(--glass-border);
    transform:translateY(-4px);
    box-shadow:0 8px 32px rgba(0,0,0,0.08);
}
[data-theme="dark"] .glass-card:hover {box-shadow:0 8px 32px rgba(0,0,0,0.3)}

/* ===== Navbar ===== */
.navbar {
    position:fixed;top:0;left:0;right:0;z-index:1000;
    padding:16px 0;
    transition:var(--transition);
}
.navbar.scrolled {
    background:var(--nav-scroll-bg);
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
    border-bottom:1px solid var(--glass-border);
    padding:12px 0;
    box-shadow:var(--shadow-soft);
}
.nav-container {
    max-width:1200px;margin:0 auto;padding:0 24px;
    display:flex;align-items:center;justify-content:space-between;
}
.nav-logo {
    font-family:var(--font-display);font-size:2rem;font-weight:700;
    letter-spacing:-1px;
}
.logo-dot {color:var(--accent-1)}
.nav-links {display:flex;gap:32px}
.nav-link {
    font-size:0.9rem;font-weight:500;color:var(--text-secondary);
    position:relative;transition:var(--transition);
}
.nav-link::after {
    content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;
    background:var(--gradient-main);border-radius:2px;transition:var(--transition);
}
.nav-link:hover,.nav-link.active {color:var(--text-primary)}
.nav-link:hover::after,.nav-link.active::after {width:100%}
.nav-toggle {display:none;flex-direction:column;gap:5px;padding:4px}
.nav-toggle span {width:24px;height:2px;background:var(--text-primary);border-radius:2px;transition:var(--transition)}

/* ===== Hero ===== */
.hero {
    min-height:100vh;display:flex;flex-direction:column;
    align-items:center;justify-content:center;text-align:center;
    position:relative;z-index:1;padding:120px 24px 60px;
}
.hero-content {max-width:900px}
.hero-badge {
    display:inline-block;padding:8px 20px;
    background:var(--gradient-subtle);
    border:1px solid var(--glass-border);
    border-radius:100px;font-size:0.85rem;font-weight:500;
    color:var(--accent-2);margin-bottom:32px;
    animation:fadeInUp 0.8s ease-out;
}
.hero-title {
    font-family:var(--font-display);font-size:clamp(2.8rem,7vw,5.5rem);
    font-weight:800;line-height:1.05;letter-spacing:-2px;margin-bottom:24px;
}
.title-line {display:block;animation:fadeInUp 0.8s ease-out both}
.title-line:nth-child(1){animation-delay:0.1s}
.title-line:nth-child(2){animation-delay:0.2s}
.title-line:nth-child(3){animation-delay:0.3s}

.hero-subtitle {
    font-size:1.15rem;color:var(--text-secondary);max-width:600px;margin:0 auto 40px;
    line-height:1.7;animation:fadeInUp 0.8s ease-out 0.4s both;
}
.hero-cta {
    display:flex;gap:16px;justify-content:center;flex-wrap:wrap;
    animation:fadeInUp 0.8s ease-out 0.5s both;
}
.hero-stats {
    display:flex;gap:48px;justify-content:center;margin-top:64px;
    animation:fadeInUp 0.8s ease-out 0.6s both;
}
.stat {text-align:center}
.stat-number {
    font-family:var(--font-display);font-size:2.5rem;font-weight:700;
    background:var(--gradient-main);-webkit-background-clip:text;
    -webkit-text-fill-color:transparent;background-clip:text;
}
.stat-suffix {
    font-family:var(--font-display);font-size:2rem;font-weight:700;
    background:var(--gradient-main);-webkit-background-clip:text;
    -webkit-text-fill-color:transparent;background-clip:text;
}
.stat-label {display:block;font-size:0.85rem;color:var(--text-muted);margin-top:4px}

/* ===== Buttons ===== */
.btn {
    display:inline-flex;align-items:center;gap:8px;
    padding:14px 32px;border-radius:100px;font-weight:600;
    font-size:0.95rem;transition:var(--transition);
}
.btn-primary {
    background:var(--gradient-main);color:#fff;
    box-shadow:0 4px 24px rgba(108,92,231,0.3);
}
.btn-primary:hover {transform:translateY(-2px);box-shadow:0 8px 32px rgba(108,92,231,0.4)}
.btn-outline {
    border:1px solid var(--glass-border);color:var(--text-primary);
    background:var(--glass-bg);box-shadow:var(--shadow-soft);
}
.btn-outline:hover {border-color:var(--accent-2);background:var(--glass-hover)}
.btn-full {width:100%;justify-content:center}
.btn-arrow {transition:var(--transition)}
.btn:hover .btn-arrow {transform:translateX(4px)}

/* ===== Scroll Indicator ===== */
.scroll-indicator {
    position:absolute;bottom:40px;display:flex;flex-direction:column;
    align-items:center;gap:8px;color:var(--text-muted);font-size:0.75rem;
    animation:fadeInUp 0.8s ease-out 0.8s both;
}
.mouse {
    width:24px;height:38px;border:2px solid var(--text-muted);border-radius:12px;
    display:flex;justify-content:center;padding-top:6px;
}
.wheel {
    width:3px;height:8px;background:var(--text-muted);border-radius:3px;
    animation:scrollWheel 2s infinite;
}
@keyframes scrollWheel {
    0%{opacity:1;transform:translateY(0)}
    100%{opacity:0;transform:translateY(12px)}
}

/* ===== Sections ===== */
.section {padding:120px 0;position:relative;z-index:1}
.section-header {text-align:center;margin-bottom:64px}
.section-tag {
    display:inline-block;padding:6px 16px;
    background:var(--gradient-subtle);border:1px solid var(--glass-border);
    border-radius:100px;font-size:0.8rem;font-weight:600;
    color:var(--accent-2);text-transform:uppercase;letter-spacing:1px;
    margin-bottom:20px;
}
.section-title {
    font-family:var(--font-display);font-size:clamp(2rem,4vw,3.2rem);
    font-weight:700;line-height:1.2;letter-spacing:-1px;
}

/* ===== About Grid ===== */
.about-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.about-card {padding:36px 28px;text-align:center}
.card-icon {font-size:2.5rem;margin-bottom:16px}
.about-card h3 {
    font-family:var(--font-display);font-size:1.25rem;
    margin-bottom:12px;font-weight:600;
}
.about-card p {color:var(--text-secondary);font-size:0.95rem;line-height:1.6}

/* ===== Services ===== */
.services-list {display:flex;flex-direction:column;gap:2px}
.service-item {
    display:flex;align-items:center;justify-content:space-between;
    padding:32px;border-radius:var(--radius-md);
    border-bottom:1px solid var(--glass-border);
    transition:var(--transition);cursor:pointer;position:relative;overflow:hidden;
}
.service-item::before {
    content:attr(data-number);position:absolute;left:32px;
    font-family:var(--font-display);font-size:5rem;font-weight:800;
    color:var(--service-watermark);line-height:1;
}
.service-item:hover {background:var(--glass-bg)}
.service-item:hover .service-arrow {transform:translateX(8px);color:var(--accent-2)}
.service-content h3 {
    font-family:var(--font-display);font-size:1.5rem;font-weight:600;margin-bottom:8px;
}
.service-content p {color:var(--text-secondary);font-size:0.95rem;max-width:500px}
.service-arrow {
    font-size:1.5rem;color:var(--text-muted);transition:var(--transition);flex-shrink:0;
}

/* ===== Portfolio ===== */
.portfolio-grid {
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:24px;
}
.portfolio-card {
    border-radius:var(--radius-lg);overflow:hidden;position:relative;
    cursor:pointer;transition:var(--transition);
}
.card-large {min-height:400px}
.card-small {min-height:300px}
.portfolio-card:nth-child(1){background:linear-gradient(135deg,#e8e6f0,#d4d2e8)}
.portfolio-card:nth-child(2){background:linear-gradient(135deg,#e6e0f0,#d8cef5)}
.portfolio-card:nth-child(3){background:linear-gradient(135deg,#dff0df,#c8e8d6)}
.portfolio-card:nth-child(4){background:linear-gradient(135deg,#f0e0df,#e8cfc8)}
[data-theme="dark"] .portfolio-card:nth-child(1){background:linear-gradient(135deg,#1a1a2e,#16213e)}
[data-theme="dark"] .portfolio-card:nth-child(2){background:linear-gradient(135deg,#1e1e30,#2d1b4e)}
[data-theme="dark"] .portfolio-card:nth-child(3){background:linear-gradient(135deg,#1a2a1a,#0d3b2e)}
[data-theme="dark"] .portfolio-card:nth-child(4){background:linear-gradient(135deg,#2a1a1a,#3b1d0d)}

.portfolio-overlay {
    position:absolute;inset:0;display:flex;flex-direction:column;
    justify-content:flex-end;padding:32px;
    background:linear-gradient(to top,var(--portfolio-overlay) 0%,transparent 60%);
    opacity:0;transition:var(--transition);
}
.portfolio-card:hover .portfolio-overlay {opacity:1}
.portfolio-card:hover {transform:scale(1.02)}
.portfolio-tag {
    display:inline-block;padding:4px 12px;background:var(--accent-1);
    border-radius:100px;font-size:0.75rem;font-weight:600;
    color:#fff;margin-bottom:8px;width:fit-content;
}
.portfolio-overlay h3 {font-family:var(--font-display);font-size:1.4rem;font-weight:600}
.portfolio-overlay p {color:var(--text-secondary);font-size:0.9rem;margin-top:4px}

/* ===== Testimonials ===== */
.testimonial-carousel {position:relative;max-width:700px;margin:0 auto;min-height:250px}
.testimonial-card {
    padding:40px;text-align:center;
    position:absolute;width:100%;opacity:0;
    transform:translateX(40px);transition:0.5s ease;pointer-events:none;
}
.testimonial-card.active {opacity:1;transform:translateX(0);position:relative;pointer-events:auto}
.testimonial-quote {
    font-family:var(--font-display);font-size:4rem;
    background:var(--gradient-main);-webkit-background-clip:text;
    -webkit-text-fill-color:transparent;background-clip:text;
    line-height:1;margin-bottom:8px;
}
.testimonial-card p {
    font-size:1.1rem;color:var(--text-secondary);line-height:1.7;
    font-style:italic;margin-bottom:24px;
}
.testimonial-author {display:flex;align-items:center;gap:12px;justify-content:center}
.author-avatar {
    width:48px;height:48px;border-radius:50%;
    background:var(--gradient-main);display:flex;align-items:center;
    justify-content:center;font-weight:700;font-size:0.85rem;color:#fff;
}
.testimonial-author strong {display:block;font-size:0.95rem}
.testimonial-author span {font-size:0.8rem;color:var(--text-muted)}
.carousel-dots {display:flex;justify-content:center;gap:8px;margin-top:32px}
.dot {
    width:10px;height:10px;border-radius:50%;
    background:var(--text-muted);transition:var(--transition);
}
.dot.active {background:var(--accent-1);width:28px;border-radius:5px}

/* ===== Contact ===== */
.contact-grid {display:grid;grid-template-columns:1.2fr 0.8fr;gap:32px;align-items:start}
.contact-form {padding:40px}
.form-group {position:relative;margin-bottom:24px}
.form-group input,.form-group textarea {
    width:100%;padding:16px;background:var(--input-bg);
    border:1px solid var(--glass-border);border-radius:var(--radius-sm);
    color:var(--text-primary);font-size:1rem;font-family:var(--font-primary);
    transition:var(--transition);resize:none;
}
.form-group input:focus,.form-group textarea:focus {
    outline:none;border-color:var(--accent-1);
    box-shadow:0 0 0 3px rgba(108,92,231,0.1);
}
.form-group label {
    position:absolute;left:16px;top:16px;
    color:var(--text-muted);font-size:0.95rem;
    transition:var(--transition);pointer-events:none;
}
.form-group input:focus~label,.form-group input:not(:placeholder-shown)~label,
.form-group textarea:focus~label,.form-group textarea:not(:placeholder-shown)~label {
    top:-10px;left:12px;font-size:0.75rem;
    background:var(--bg-primary);padding:0 6px;
    color:var(--accent-2);
}
.contact-info {display:flex;flex-direction:column;gap:16px}
.info-card {padding:24px;display:flex;align-items:center;gap:16px}
.info-icon {font-size:1.5rem}
.info-card h4 {font-size:0.95rem;font-weight:600;margin-bottom:2px}
.info-card p {font-size:0.85rem;color:var(--text-secondary)}

/* ===== Footer ===== */
.footer {
    border-top:1px solid var(--glass-border);padding:64px 0 24px;
    position:relative;z-index:1;
}
.footer-content {display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand p {color:var(--text-secondary);margin-top:12px;font-size:0.9rem;max-width:300px}
.footer-links {display:flex;flex-direction:column;gap:12px}
.footer-links h4,.footer-social h4 {font-size:0.9rem;font-weight:600;margin-bottom:4px}
.footer-links a {color:var(--text-secondary);font-size:0.9rem;transition:var(--transition)}
.footer-links a:hover {color:var(--text-primary)}
.social-icons {display:flex;gap:12px;margin-top:4px}
.social-icon {
    width:40px;height:40px;border-radius:50%;
    background:var(--glass-bg);border:1px solid var(--glass-border);
    display:flex;align-items:center;justify-content:center;
    font-size:0.9rem;font-weight:700;transition:var(--transition);
}
.social-icon:hover {background:var(--accent-1);border-color:var(--accent-1)}
.footer-bottom {
    text-align:center;padding-top:24px;border-top:1px solid var(--glass-border);
    color:var(--text-muted);font-size:0.85rem;
}

/* ===== Theme Toggle ===== */
.theme-toggle {
    position:fixed;bottom:32px;right:32px;z-index:1001;
    width:52px;height:52px;border-radius:50%;
    background:var(--gradient-main);border:none;
    display:flex;align-items:center;justify-content:center;
    cursor:pointer;font-size:1.4rem;
    box-shadow:0 4px 20px rgba(108,92,231,0.4);
    transition:var(--transition);
}
.theme-toggle:hover {transform:scale(1.1);box-shadow:0 6px 28px rgba(108,92,231,0.5)}
.theme-toggle .icon {transition:0.3s ease;line-height:1}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {opacity:0;transform:translateY(24px)}
    to {opacity:1;transform:translateY(0)}
}
.fade-in {opacity:0;transform:translateY(24px);transition:0.6s ease}
.fade-in.visible {opacity:1;transform:translateY(0)}

/* ===== Responsive ===== */
@media(max-width:768px){
    .nav-links {
        position:fixed;top:0;right:-100%;width:70%;height:100vh;
        background:var(--mobile-nav-bg);backdrop-filter:blur(20px);
        flex-direction:column;padding:80px 40px;gap:24px;
        transition:var(--transition);z-index:999;
    }
    .nav-links.open {right:0}
    .nav-toggle {display:flex;z-index:1001}
    .nav-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
    .nav-toggle.active span:nth-child(2){opacity:0}
    .nav-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
    .hero-title {letter-spacing:-1px}
    .hero-stats {gap:24px}
    .stat-number {font-size:1.8rem}
    .portfolio-grid {grid-template-columns:1fr}
    .card-large,.card-small {min-height:250px}
    .contact-grid {grid-template-columns:1fr}
    .footer-content {grid-template-columns:1fr;gap:32px}
    .service-item {flex-direction:column;align-items:flex-start;gap:12px}
}