/* ===== RESET & BASE ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #0D1117;
    --bg-alt: #161B22;
    --surface: #1C2128;
    --border: #30363D;
    --text: #E6EDF3;
    --text-muted: #8B949E;
    --accent: #00D4FF;
    --accent-glow: rgba(0, 212, 255, 0.15);
    --accent-dark: #0099BB;
    --gradient: linear-gradient(135deg, #00D4FF, #0088CC);
    --font: 'Inter', -apple-system, sans-serif;
    --mono: 'JetBrains Mono', monospace;
    --radius: 12px;
    --radius-sm: 8px;
}

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: opacity .2s; }
a:hover { opacity: .85; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

.code-accent { color: var(--accent); font-family: var(--mono); font-weight: 700; }
.gradient-text { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ===== ANIMATIONS ===== */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== NAV ===== */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(13, 17, 23, 0.85); backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent; transition: border-color .3s;
}
.nav.scrolled { border-bottom-color: var(--border); }
.nav-inner { max-width: 1120px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; height: 72px; }
.nav-logo { display: flex; align-items: center; }
.logo-img { height: 36px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { color: var(--text-muted); font-size: .9rem; font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: var(--text); opacity: 1; }
.nav-cta {
    background: var(--gradient); color: var(--bg) !important; padding: 8px 20px;
    border-radius: 6px; font-weight: 600 !important; font-size: .85rem !important;
}
.nav-cta:hover { opacity: .9 !important; }
.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); margin: 6px 0; transition: .3s; border-radius: 2px; }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

/* ===== HERO ===== */
.hero {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden; padding: 120px 0 80px;
}
.hero-bg-grid {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(0,212,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,212,255,.03) 1px, transparent 1px);
    background-size: 60px 60px;
}
.hero-content { text-align: center; position: relative; z-index: 1; }
.hero-badge {
    display: inline-block; font-family: var(--mono); font-size: .85rem;
    color: var(--accent); border: 1px solid var(--border); padding: 6px 16px;
    border-radius: 100px; margin-bottom: 24px; background: var(--accent-glow);
}
.hero h1 { font-size: clamp(2.5rem, 6vw, 4.2rem); font-weight: 800; line-height: 1.1; margin-bottom: 20px; letter-spacing: -0.03em; }
.hero-sub { font-size: clamp(1rem, 2vw, 1.2rem); color: var(--text-muted); max-width: 620px; margin: 0 auto 36px; line-height: 1.7; }
.hero-sub strong { color: var(--accent); }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 56px; }

.btn {
    display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px;
    border-radius: var(--radius-sm); font-weight: 600; font-size: .95rem;
    transition: all .2s; cursor: pointer; border: none; font-family: var(--font);
}
.btn-primary { background: var(--gradient); color: var(--bg); }
.btn-primary:hover { opacity: .9; color: var(--bg); box-shadow: 0 0 30px var(--accent-glow); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); opacity: 1; }
.btn-full { width: 100%; justify-content: center; }

.hero-stats { display: flex; justify-content: center; align-items: center; gap: 40px; }
.stat { text-align: center; }
.stat-num { display: block; font-family: var(--mono); font-size: 1.8rem; font-weight: 700; color: var(--accent); }
.stat-label { font-size: .8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .1em; }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

/* ===== SECTIONS ===== */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-tag { display: inline-block; font-family: var(--mono); font-size: .8rem; color: var(--accent); margin-bottom: 12px; letter-spacing: .05em; }
.section-header h2 { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 12px; }
.section-sub { color: var(--text-muted); font-size: 1.05rem; max-width: 540px; margin: 0 auto; }

/* ===== CARDS ===== */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 24px; }
.card {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 32px; transition: border-color .3s, transform .3s;
}
.card:hover { border-color: var(--accent); transform: translateY(-4px); }
.card-icon { font-size: 2rem; margin-bottom: 16px; }
.card h3 { font-size: 1.15rem; margin-bottom: 10px; font-weight: 700; }
.card p { color: var(--text-muted); font-size: .92rem; line-height: 1.6; }

/* ===== TIMELINE ===== */
.timeline { max-width: 640px; margin: 0 auto; }
.timeline-step { display: flex; gap: 24px; align-items: flex-start; }
.step-number {
    font-family: var(--mono); font-size: 1.5rem; font-weight: 700;
    color: var(--accent); min-width: 56px; height: 56px;
    display: flex; align-items: center; justify-content: center;
    border: 2px solid var(--accent); border-radius: 50%;
    background: var(--accent-glow); flex-shrink: 0;
}
.step-content h3 { font-size: 1.2rem; margin-bottom: 6px; }
.step-content p { color: var(--text-muted); font-size: .92rem; }
.timeline-connector { width: 2px; height: 40px; background: var(--border); margin-left: 27px; }
.timeline-badge {
    text-align: center; margin-top: 48px; font-family: var(--mono); font-size: .9rem;
    color: var(--text-muted); padding: 12px 24px; border: 1px solid var(--border);
    border-radius: 100px; display: inline-block; width: 100%;
    background: var(--accent-glow);
}
.timeline-badge strong { color: var(--accent); }

/* ===== CASE STUDY ===== */
.case-study-card {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    overflow: hidden; max-width: 800px; margin: 0 auto;
}
.case-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 24px 32px; border-bottom: 1px solid var(--border); background: var(--bg-alt);
}
.case-header h3 { font-size: 1.3rem; }
.case-label { font-size: .85rem; color: var(--text-muted); font-family: var(--mono); }
.case-label strong { color: var(--accent); }
.case-status { display: flex; align-items: center; gap: 8px; font-size: .85rem; color: #3fb950; font-family: var(--mono); }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #3fb950; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .4; } }
.case-body { padding: 32px; }
.case-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 24px; }
.case-stat { text-align: center; }
.case-stat-num { display: block; font-family: var(--mono); font-size: 2rem; font-weight: 700; color: var(--accent); }
.case-stat-label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 2px; }
.case-stat-detail { display: block; font-size: .78rem; color: var(--text-muted); }
.case-details { margin-bottom: 24px; }
.case-details p { color: var(--text-muted); font-size: .95rem; }
.case-details strong { color: var(--accent); }
.case-quote {
    border-left: 3px solid var(--accent); padding: 16px 24px;
    background: var(--accent-glow); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.case-quote p { font-size: 1.05rem; font-style: italic; font-weight: 500; line-height: 1.6; }

/* ===== PRICING ===== */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; max-width: 960px; margin: 0 auto; }
.pricing-card {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 36px 28px; text-align: center; position: relative; transition: border-color .3s;
}
.pricing-card:hover { border-color: var(--accent); }
.pricing-card-featured { border-color: var(--accent); }
.pricing-badge {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    background: var(--gradient); color: var(--bg); font-size: .75rem;
    font-weight: 700; padding: 4px 16px; border-radius: 100px; text-transform: uppercase;
    letter-spacing: .05em;
}
.pricing-label { font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-muted); margin-bottom: 8px; }
.pricing-amount { font-size: 2.5rem; font-weight: 800; margin-bottom: 4px; }
.pricing-from { font-size: .85rem; font-weight: 400; color: var(--text-muted); }
.pricing-period { font-size: 1rem; font-weight: 400; color: var(--text-muted); }
.pricing-desc { font-size: .9rem; color: var(--text-muted); margin-bottom: 24px; }
.pricing-features { list-style: none; text-align: left; }
.pricing-features li { padding: 8px 0; font-size: .9rem; color: var(--text-muted); border-top: 1px solid var(--border); }
.pricing-features li::before { content: '✓ '; color: var(--accent); font-weight: 700; }
.pricing-note {
    text-align: center; margin-top: 40px; font-family: var(--mono); font-size: .9rem;
    color: var(--text-muted); padding: 16px 24px; border: 1px dashed var(--border);
    border-radius: var(--radius-sm); background: var(--accent-glow);
}

/* ===== FAQ ===== */
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-question {
    width: 100%; display: flex; justify-content: space-between; align-items: center;
    padding: 20px 0; background: none; border: none; color: var(--text);
    font-size: 1rem; font-weight: 600; font-family: var(--font); cursor: pointer;
    text-align: left; transition: color .2s;
}
.faq-question:hover { color: var(--accent); }
.faq-toggle { font-family: var(--mono); font-size: 1.4rem; color: var(--accent); transition: transform .3s; flex-shrink: 0; margin-left: 16px; }
.faq-item.active .faq-toggle { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-answer p { padding: 0 0 20px; color: var(--text-muted); font-size: .92rem; line-height: 1.7; }
.faq-item.active .faq-answer { max-height: 300px; }

/* ===== CONTACT ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; max-width: 900px; margin: 0 auto; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; margin-bottom: 24px; }
.contact-icon { font-size: 1.5rem; margin-top: 2px; }
.contact-label { font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-muted); margin-bottom: 2px; }
.contact-value { color: var(--text); font-weight: 500; font-size: 1rem; }
.contact-cta { display: flex; flex-direction: column; gap: 12px; margin-top: 16px; }

.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-group label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 6px; color: var(--text-muted); }
.form-group input, .form-group textarea {
    width: 100%; padding: 12px 16px; background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text); font-family: var(--font);
    font-size: .95rem; transition: border-color .2s; outline: none;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { resize: vertical; }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-muted); opacity: .5; }

/* ===== FOOTER ===== */
.footer { border-top: 1px solid var(--border); padding: 40px 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-brand { display: flex; align-items: center; gap: 16px; }
.footer-logo { height: 28px; width: auto; opacity: .7; }
.footer-tagline { font-family: var(--mono); font-size: .8rem; color: var(--text-muted); }
.footer-copy { font-size: .8rem; color: var(--text-muted); }

/* ===== MOBILE ===== */
@media (max-width: 768px) {
    .hamburger { display: block; }
    .nav-links {
        display: none; position: fixed; top: 72px; left: 0; right: 0; bottom: 0;
        background: rgba(13, 17, 23, 0.98); flex-direction: column;
        align-items: center; justify-content: center; gap: 24px; backdrop-filter: blur(16px);
    }
    .nav-links.open { display: flex; }
    .nav-links a { font-size: 1.2rem; }
    .hero-stats { gap: 20px; }
    .stat-num { font-size: 1.4rem; }
    .contact-grid { grid-template-columns: 1fr; gap: 32px; }
    .case-stats { grid-template-columns: 1fr; gap: 16px; }
    .case-header { flex-direction: column; align-items: flex-start; gap: 8px; }
    .footer-inner { flex-direction: column; text-align: center; }
    .footer-brand { flex-direction: column; }
    .section { padding: 72px 0; }
}