/* ── Reset & Base ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #0a0a0f;
    color: #c8ccd4;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ── Design Tokens ── */
:root {
    --accent: #6366f1;
    --accent-light: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.25);
    --surface: #12121a;
    --surface-2: #1a1a26;
    --surface-3: #22222f;
    --border: rgba(255, 255, 255, 0.06);
    --text-primary: #f0f0f5;
    --text-secondary: #9197a6;
    --text-muted: #6b7280;
    --radius: 16px;
    --radius-sm: 10px;
    --max-width: 1140px;
    --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ── Navigation ── */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 20px 0;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}
.nav-container {
    max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; }
.logo-icon { color: var(--accent-light); font-size: 1.1rem; }
.logo-text { color: var(--text-primary); }
.logo-accent { color: var(--accent-light); }
.nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
.nav-links a {
    font-size: 0.9rem; font-weight: 500; color: var(--text-secondary);
    transition: color 0.3s; position: relative;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-cta {
    background: var(--accent) !important; color: #fff !important;
    padding: 8px 20px; border-radius: 8px;
    transition: all 0.3s !important;
}
.nav-cta:hover { background: var(--accent-light) !important; transform: translateY(-1px); }

/* Mobile Toggle */
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span {
    display: block; width: 22px; height: 2px; background: var(--text-primary);
    margin: 5px 0; transition: all 0.3s;
}
.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); }

/* Mobile Menu */
.mobile-menu {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(10, 10, 15, 0.97); backdrop-filter: blur(20px);
    z-index: 99; display: flex; align-items: center; justify-content: center;
    opacity: 0; pointer-events: none; transition: opacity 0.4s;
}
.mobile-menu.open { opacity: 1; pointer-events: all; }
.mobile-menu ul { list-style: none; text-align: center; }
.mobile-menu li { margin: 20px 0; }
.mobile-menu a { font-size: 1.5rem; font-weight: 600; color: var(--text-primary); }

/* ── Hero ── */
.hero {
    position: relative; min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden; padding: 120px 24px 80px;
}
.hero-bg {
    position: absolute; inset: 0; overflow: hidden;
}
.hero-grid {
    position: absolute; inset: 0;
    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);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 100%);
}
.hero-glow {
    position: absolute; border-radius: 50%; filter: blur(120px); opacity: 0.4;
    animation: float 12s ease-in-out infinite;
}
.hero-glow-1 {
    width: 500px; height: 500px; top: -100px; left: -100px;
    background: radial-gradient(circle, var(--accent-glow), transparent 70%);
}
.hero-glow-2 {
    width: 400px; height: 400px; bottom: -50px; right: -50px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.2), transparent 70%);
    animation-delay: -6s;
}
@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

.hero-content { position: relative; z-index: 1; text-align: center; max-width: 720px; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--surface-2); border: 1px solid var(--border);
    padding: 6px 16px; border-radius: 100px;
    font-size: 0.82rem; font-weight: 500; color: var(--text-secondary);
    margin-bottom: 28px;
}
.badge-dot {
    width: 6px; height: 6px; border-radius: 50%; background: #34d399;
    box-shadow: 0 0 8px rgba(52, 211, 153, 0.5);
    animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.2rem);
    font-weight: 800; line-height: 1.1;
    color: var(--text-primary); margin-bottom: 24px;
    letter-spacing: -0.03em;
}
.hero-gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-subtitle {
    font-size: 1.1rem; color: var(--text-secondary);
    max-width: 560px; margin: 0 auto 36px; line-height: 1.7;
}
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 28px; border-radius: var(--radius-sm);
    font-size: 0.92rem; font-weight: 600;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer; border: none; font-family: inherit;
}
.btn-primary {
    background: var(--gradient); color: #fff;
    box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px var(--accent-glow); }
.btn-secondary {
    background: var(--surface-2); color: var(--text-primary);
    border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--surface-3); border-color: rgba(255,255,255,0.12); transform: translateY(-2px); }
.btn-full { width: 100%; justify-content: center; }

/* Scroll Indicator */
.hero-scroll {
    position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
}
.scroll-indicator {
    width: 24px; height: 40px; border-radius: 12px;
    border: 2px solid rgba(255,255,255,0.15);
    display: flex; justify-content: center; padding-top: 8px;
}
.scroll-dot {
    width: 4px; height: 8px; border-radius: 2px; background: var(--accent-light);
    animation: scroll-bounce 2s ease-in-out infinite;
}
@keyframes scroll-bounce {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(12px); opacity: 0.3; }
}

/* ── Hero Animations ── */
.animate-in {
    opacity: 0; transform: translateY(24px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.animate-in.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }
.delay-3 { transition-delay: 0.45s; }

/* ── Section Common ── */
.section-header { text-align: center; max-width: 600px; margin: 0 auto 60px; }
.section-label {
    display: inline-block; font-size: 0.78rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--accent-light); margin-bottom: 16px;
}
.section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800; color: var(--text-primary);
    line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 16px;
}
.section-desc { color: var(--text-secondary); font-size: 1.05rem; }

/* ── Services ── */
.services { padding: 120px 0; }
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.service-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative; overflow: hidden;
}
.service-card::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(135deg, var(--accent-glow), transparent 60%);
    opacity: 0; transition: opacity 0.4s;
}
.service-card:hover { border-color: rgba(99, 102, 241, 0.2); transform: translateY(-4px); }
.service-card:hover::before { opacity: 1; }
.service-card > * { position: relative; z-index: 1; }
.service-card-wide { grid-column: span 3; }
.service-icon {
    width: 52px; height: 52px; border-radius: 12px;
    background: var(--surface-2); border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 20px; color: var(--accent-light);
    transition: all 0.3s;
}
.service-card:hover .service-icon { background: rgba(99, 102, 241, 0.15); border-color: rgba(99, 102, 241, 0.3); }
.service-card h3 {
    font-size: 1.1rem; font-weight: 700; color: var(--text-primary);
    margin-bottom: 10px;
}
.service-card p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.65; }

/* ── About ── */
.about { padding: 120px 0; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-content p { color: var(--text-secondary); margin-bottom: 20px; font-size: 1.02rem; }
.about-content .section-title { margin-bottom: 24px; }
.about-content .section-title em { font-style: italic; color: var(--accent-light); }
.about-features { list-style: none; margin-top: 32px; }
.about-features li {
    display: flex; gap: 16px; align-items: flex-start;
    padding: 16px 0; border-top: 1px solid var(--border);
}
.feature-check {
    width: 28px; height: 28px; border-radius: 8px;
    background: rgba(52, 211, 153, 0.1); color: #34d399;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.85rem; font-weight: 700; flex-shrink: 0; margin-top: 2px;
}
.about-features strong {
    display: block; color: var(--text-primary); font-size: 0.95rem;
    font-weight: 600; margin-bottom: 4px;
}
.about-features span { font-size: 0.88rem; color: var(--text-secondary); }

.about-visual { display: flex; justify-content: center; }
.about-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px; max-width: 380px; width: 100%;
}
.about-stat { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.stat-icon { font-size: 2rem; }
.stat-label { font-size: 1.1rem; font-weight: 700; color: var(--text-primary); }
.stat-desc { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.7; }

/* ── Contact ── */
.contact { padding: 120px 0; }
.contact-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    display: grid; grid-template-columns: 1fr 1fr;
    overflow: hidden;
}
.contact-info {
    padding: 56px 48px;
    background: linear-gradient(135deg, var(--surface-2) 0%, var(--surface) 100%);
}
.contact-info .section-title { margin-bottom: 16px; }
.contact-info p { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 32px; }
.contact-methods { display: flex; flex-direction: column; gap: 12px; }
.contact-method {
    display: inline-flex; align-items: center; gap: 10px;
    color: var(--accent-light); font-weight: 500; font-size: 0.95rem;
    transition: color 0.3s;
}
.contact-method:hover { color: #fff; }

.contact-form { padding: 56px 48px; }
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block; font-size: 0.82rem; font-weight: 600;
    color: var(--text-secondary); margin-bottom: 8px;
    text-transform: uppercase; letter-spacing: 0.05em;
}
.form-group input,
.form-group textarea {
    width: 100%; padding: 14px 16px;
    background: var(--surface-2); color: var(--text-primary);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    font-family: inherit; font-size: 0.95rem;
    transition: all 0.3s; outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-success {
    display: none; align-items: center; gap: 10px;
    padding: 16px; border-radius: var(--radius-sm);
    background: rgba(52, 211, 153, 0.1); color: #34d399;
    font-weight: 500; margin-top: 12px;
}
.success-icon {
    width: 28px; height: 28px; border-radius: 50%;
    background: rgba(52, 211, 153, 0.2);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.85rem;
}

/* ── Footer ── */
.footer {
    padding: 48px 0;
    border-top: 1px solid var(--border);
}
.footer-content {
    display: flex; flex-direction: column; align-items: center;
    text-align: center; gap: 16px;
}
.footer-brand { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.footer-brand .logo-icon { font-size: 1.2rem; }
.footer-tagline { color: var(--text-muted); font-size: 0.85rem; }
.footer-bottom p { color: var(--text-muted); font-size: 0.82rem; }

/* ── Scroll Animations ── */
.fade-up {
    opacity: 0; transform: translateY(30px);
    transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }
.service-card.fade-up:nth-child(1) { transition-delay: 0s; }
.service-card.fade-up:nth-child(2) { transition-delay: 0.08s; }
.service-card.fade-up:nth-child(3) { transition-delay: 0.16s; }
.service-card.fade-up:nth-child(4) { transition-delay: 0.24s; }
.service-card.fade-up:nth-child(5) { transition-delay: 0.32s; }
.service-card.fade-up:nth-child(6) { transition-delay: 0.4s; }
.service-card.fade-up:nth-child(7) { transition-delay: 0.48s; }

/* ── Responsive ── */
@media (max-width: 900px) {
    .nav-links { display: none; }
    .nav-toggle { display: block; }
    .services-grid { grid-template-columns: 1fr 1fr; }
    .service-card-wide { grid-column: span 2; }
    .about-grid { grid-template-columns: 1fr; gap: 48px; }
    .contact-box { grid-template-columns: 1fr; }
    .contact-info, .contact-form { padding: 40px 32px; }
}
@media (max-width: 600px) {
    .services-grid { grid-template-columns: 1fr; }
    .service-card-wide { grid-column: span 1; }
    .hero { padding: 100px 20px 60px; }
    .hero-title { font-size: 2.2rem; }
    .hero-actions { flex-direction: column; align-items: center; }
    .btn { width: 100%; justify-content: center; }
    .contact-info, .contact-form { padding: 32px 24px; }
    .section-header { margin-bottom: 40px; }
    .services, .about, .contact { padding: 80px 0; }
}