/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --bg: #0a0a0f; --bg-card: #12121a; --bg-card-hover: #161620; --bg-elevated: #1a1a28;
    --border: #1e1e2e; --border-hover: #2a2a40; --text: #e4e4f0; --text-muted: #8888a0;
    --text-dim: #5a5a72; --accent: #00d4ff; --accent-2: #7c3aed;
    --accent-gradient: linear-gradient(135deg, #00d4ff, #7c3aed);
    --success: #00ff88; --warn: #ffaa00; --radius: 16px; --radius-sm: 10px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
html { scroll-behavior: smooth; }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; position: relative; }
.bg-grid { position: fixed; inset: 0; background-image: linear-gradient(rgba(0,212,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(0,212,255,0.03) 1px, transparent 1px); background-size: 50px 50px; z-index: -2; mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 30%, transparent 80%); -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 30%, transparent 80%); }
.bg-glow { position: fixed; top: -300px; left: 50%; transform: translateX(-50%); width: 1200px; height: 600px; background: radial-gradient(ellipse at center, rgba(124,58,237,0.15), transparent 70%); z-index: -1; pointer-events: none; }
.gradient-text { background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-tag { display: inline-block; font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; font-weight: 500; color: var(--accent); text-transform: uppercase; letter-spacing: 0.15em; margin-bottom: 16px; padding: 6px 14px; background: rgba(0,212,255,0.08); border: 1px solid rgba(0,212,255,0.2); border-radius: 100px; }
.section-title { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; line-height: 1.15; margin-bottom: 16px; letter-spacing: -0.02em; }
.section-subtitle { font-size: 1.1rem; color: var(--text-muted); max-width: 600px; margin: 0 auto; }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 60px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; border-radius: var(--radius-sm); font-family: inherit; font-size: 0.95rem; font-weight: 600; text-decoration: none; cursor: pointer; border: none; transition: var(--transition); white-space: nowrap; }
.btn-primary { background: var(--accent-gradient); color: #0a0a0f; position: relative; overflow: hidden; }
.btn-primary::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, #00d4ff, #5b21b6); opacity: 0; transition: opacity 0.3s; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 40px rgba(0,212,255,0.3); }
.btn-primary:hover::before { opacity: 1; }
.btn-primary span, .btn-primary svg { position: relative; z-index: 1; }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border-hover); }
.btn-ghost:hover { background: var(--bg-elevated); border-color: var(--accent); color: var(--accent); }
.btn-large { padding: 18px 40px; font-size: 1.05rem; }
.btn-full { width: 100%; justify-content: center; }
nav#navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 20px 0; transition: var(--transition); }
nav#navbar.scrolled { padding: 12px 0; background: rgba(10,10,15,0.85); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); }
.nav-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-weight: 800; font-size: 1.3rem; letter-spacing: -0.02em; }
.logo-mark { display: flex; align-items: center; }
.logo-text { display: flex; align-items: baseline; }
.logo-accent { color: var(--accent); font-size: 0.7em; margin-left: 4px; font-weight: 700; }
.nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
.nav-links a { color: var(--text-muted); text-decoration: none; font-size: 0.95rem; font-weight: 500; transition: color 0.2s; position: relative; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links a:not(.nav-cta)::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--accent-gradient); transition: width 0.3s; }
.nav-links a:not(.nav-cta):hover::after, .nav-links a.active:not(.nav-cta)::after { width: 100%; }
.nav-cta { background: var(--accent-gradient); color: #0a0a0f !important; padding: 10px 22px; border-radius: 100px; font-weight: 600; }
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,212,255,0.3); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--transition); }
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.hero { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 120px 24px 60px; max-width: 1200px; margin: 0 auto; gap: 60px; }
.hero-content { flex: 1; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; background: rgba(0,255,136,0.08); border: 1px solid rgba(0,255,136,0.2); border-radius: 100px; font-size: 0.85rem; font-weight: 500; color: var(--success); margin-bottom: 24px; }
.pulse-dot { width: 8px; height: 8px; background: var(--success); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0,255,136,0.4); } 50% { opacity: 0.6; box-shadow: 0 0 0 8px rgba(0,255,136,0); } }
.hero-title { font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 900; line-height: 1.05; letter-spacing: -0.03em; margin-bottom: 24px; }
.hero-subtitle { font-size: 1.15rem; color: var(--text-muted); max-width: 520px; margin-bottom: 36px; line-height: 1.7; }
.hero-actions { display: flex; gap: 16px; margin-bottom: 60px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 48px; }
.stat { display: flex; flex-direction: column; }
.stat-number { font-size: 2rem; font-weight: 800; color: var(--text); letter-spacing: -0.02em; }
.stat-label { font-size: 0.85rem; color: var(--text-dim); margin-top: 4px; }
.hero-visual { flex: 1; max-width: 480px; }
.circuit-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.4); animation: float 6s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.circuit-header { display: flex; align-items: center; gap: 8px; padding: 14px 18px; background: var(--bg-elevated); border-bottom: 1px solid var(--border); }
.circuit-dot { width: 12px; height: 12px; border-radius: 50%; }
.circuit-dot.red { background: #ff5f57; } .circuit-dot.yellow { background: #febc2e; } .circuit-dot.green { background: #28c840; }
.circuit-title { margin-left: 12px; font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; color: var(--text-dim); }
.circuit-body { padding: 24px; }
.circuit-body pre { font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; line-height: 1.8; color: var(--text-muted); }
.code-comment { color: var(--text-dim); } .code-keyword { color: var(--accent); font-weight: 600; } .code-success { color: var(--success); } .code-warn { color: var(--warn); }
.services-preview { padding: 100px 24px; max-width: 1200px; margin: 0 auto; }
.service-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }
.service-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; text-decoration: none; color: var(--text); transition: var(--transition); position: relative; overflow: hidden; }
.service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--accent-gradient); transform: scaleX(0); transform-origin: left; transition: transform 0.4s; }
.service-card:hover { background: var(--bg-card-hover); border-color: var(--border-hover); transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.3); }
.service-card:hover::before { transform: scaleX(1); }
.service-icon { margin-bottom: 20px; }
.service-card h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 12px; letter-spacing: -0.01em; }
.service-card p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.65; margin-bottom: 20px; }
.service-link { font-size: 0.9rem; font-weight: 600; color: var(--accent); }
.about-preview { padding: 100px 24px; max-width: 1200px; margin: 0 auto; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-desc { color: var(--text-muted); font-size: 1.05rem; line-height: 1.7; margin-bottom: 16px; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 32px 0; }
.about-feature { display: flex; align-items: center; gap: 10px; font-size: 0.95rem; color: var(--text); }
.about-visual { display: flex; justify-content: center; }
.about-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; width: 100%; max-width: 420px; box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.about-card-header { padding: 20px 24px; background: var(--bg-elevated); border-bottom: 1px solid var(--border); }
.about-card-tag { font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; color: var(--accent); text-transform: uppercase; letter-spacing: 0.1em; }
.about-card-body { padding: 16px; }
.area-item { display: flex; align-items: center; gap: 16px; padding: 16px; border-radius: var(--radius-sm); transition: background 0.2s; }
.area-item:hover { background: var(--bg-elevated); }
.area-icon { font-size: 1.8rem; width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; background: var(--bg-elevated); border-radius: var(--radius-sm); flex-shrink: 0; }
.area-item strong { display: block; font-size: 1rem; color: var(--text); }
.area-item span { font-size: 0.85rem; color: var(--text-dim); }
.process { padding: 100px 24px; max-width: 1200px; margin: 0 auto; }
.process-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.process-step { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; position: relative; transition: var(--transition); }
.process-step:hover { border-color: var(--border-hover); transform: translateY(-4px); }
.step-number { font-family: 'JetBrains Mono', monospace; font-size: 2rem; font-weight: 700; background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; display: block; margin-bottom: 16px; }
.process-step h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
.process-step p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }
.cta { padding: 100px 24px; max-width: 1200px; margin: 0 auto; }
.cta-content { text-align: center; background: linear-gradient(135deg, rgba(124,58,237,0.1), rgba(0,212,255,0.05)); border: 1px solid rgba(124,58,237,0.2); border-radius: 24px; padding: 80px 40px; position: relative; overflow: hidden; }
.cta-content::before { content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%; background: radial-gradient(circle, rgba(0,212,255,0.05), transparent 50%); animation: rotate 20s linear infinite; }
@keyframes rotate { to { transform: rotate(360deg); } }
.cta-content > * { position: relative; z-index: 1; }
.cta-content h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 800; margin-bottom: 16px; letter-spacing: -0.02em; }
.cta-content p { color: var(--text-muted); font-size: 1.1rem; margin-bottom: 32px; }
footer { border-top: 1px solid var(--border); padding: 60px 24px 24px; background: var(--bg-card); }
.footer-content { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 2fr; gap: 60px; margin-bottom: 40px; }
.footer-tagline { color: var(--text-muted); font-size: 0.95rem; margin-top: 16px; max-width: 300px; line-height: 1.6; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.footer-col h4 { font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-dim); margin-bottom: 16px; }
.footer-col a { display: block; color: var(--text-muted); text-decoration: none; font-size: 0.95rem; padding: 4px 0; transition: color 0.2s; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { max-width: 1200px; margin: 0 auto; padding-top: 24px; border-top: 1px solid var(--border); text-align: center; }
.footer-bottom p { color: var(--text-dim); font-size: 0.85rem; }
.page-header { padding: 160px 24px 60px; max-width: 800px; margin: 0 auto; text-align: center; }
.page-title { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 900; line-height: 1.1; letter-spacing: -0.03em; margin-bottom: 16px; }
.page-subtitle { font-size: 1.15rem; color: var(--text-muted); max-width: 600px; margin: 0 auto; }
.service-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; max-width: 1200px; margin: 0 auto; padding: 80px 24px; }
.service-detail-reverse .service-detail-content { order: 2; }
.service-detail-content h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 16px; }
.service-detail-desc { color: var(--text-muted); font-size: 1.05rem; line-height: 1.7; margin-bottom: 28px; }
.service-features { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.feature-item { display: flex; align-items: center; gap: 10px; font-size: 0.95rem; color: var(--text); }
.feature-item svg { flex-shrink: 0; }
.service-detail-visual { display: flex; justify-content: center; }
.visual-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 48px; text-align: center; width: 100%; max-width: 380px; box-shadow: 0 20px 60px rgba(0,0,0,0.3); transition: var(--transition); }
.visual-card:hover { border-color: var(--border-hover); transform: translateY(-4px); }
.visual-card-icon { margin-bottom: 24px; display: flex; justify-content: center; }
.visual-card h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 12px; }
.visual-card p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; }
.contact-section { padding: 40px 24px 80px; max-width: 1200px; margin: 0 auto; }
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; }
.contact-info h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 16px; letter-spacing: -0.02em; }
.contact-desc { color: var(--text-muted); font-size: 1rem; line-height: 1.7; margin-bottom: 32px; }
.contact-info-items { display: flex; flex-direction: column; gap: 20px; margin-bottom: 32px; }
.contact-info-item { display: flex; align-items: center; gap: 16px; }
.contact-info-icon { width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); flex-shrink: 0; }
.contact-info-item strong { display: block; font-size: 0.95rem; color: var(--text); }
.contact-info-item span { font-size: 0.85rem; color: var(--text-dim); }
.contact-note { display: flex; align-items: flex-start; gap: 12px; padding: 16px; background: rgba(0,212,255,0.05); border: 1px solid rgba(0,212,255,0.15); border-radius: var(--radius-sm); }
.contact-note p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.5; }
.contact-form-wrap { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 40px; box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--text-muted); }
.form-group input, .form-group select, .form-group textarea { background: var(--bg); border: 1px solid var(--border-hover); border-radius: var(--radius-sm); padding: 14px 16px; color: var(--text); font-family: inherit; font-size: 0.95rem; transition: var(--transition); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,212,255,0.1); }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-dim); }
.form-group select { cursor: pointer; appearance: none; -webkit-appearance: none; background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%238888a0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 40px; }
.form-group select option { background: var(--bg-card); color: var(--text); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-success { display: none; padding: 16px; background: rgba(0,255,136,0.08); border: 1px solid rgba(0,255,136,0.2); border-radius: var(--radius-sm); color: var(--success); font-size: 0.95rem; text-align: center; }
.form-success.show { display: block; }
@media (max-width: 968px) { .hero { flex-direction: column; text-align: center; padding-top: 100px; } .hero-subtitle { margin-left: auto; margin-right: auto; } .hero-actions { justify-content: center; } .hero-stats { justify-content: center; } .hero-visual { max-width: 100%; width: 100%; } .about-grid { grid-template-columns: 1fr; } .service-detail { grid-template-columns: 1fr; gap: 40px; } .service-detail-reverse .service-detail-content { order: 0; } .contact-grid { grid-template-columns: 1fr; } .footer-content { grid-template-columns: 1fr; gap: 40px; } }
@media (max-width: 768px) { .nav-toggle { display: flex; } .nav-links { position: fixed; top: 0; right: -100%; width: 80%; max-width: 320px; height: 100vh; background: var(--bg-card); border-left: 1px solid var(--border); flex-direction: column; justify-content: center; padding: 40px; gap: 24px; transition: right 0.3s; z-index: 999; } .nav-links.open { right: 0; } .nav-links a { font-size: 1.1rem; } .hero-stats { gap: 24px; } .stat-number { font-size: 1.5rem; } .about-features { grid-template-columns: 1fr; } .service-features { grid-template-columns: 1fr; } .form-row { grid-template-columns: 1fr; } .footer-links { grid-template-columns: 1fr; gap: 24px; } .cta-content { padding: 48px 24px; } .contact-form-wrap { padding: 24px; } }
@media (max-width: 480px) { .hero { padding: 90px 16px 40px; } .services-preview, .about-preview, .process, .cta { padding: 60px 16px; } .service-detail { padding: 40px 16px; } .service-grid { grid-template-columns: 1fr; } .hero-stats { flex-wrap: wrap; gap: 20px; } }
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s, transform 0.6s; }
.reveal.visible { opacity: 1; transform: translateY(0); }