/* =========================================================
   RESET & GLOBAL
========================================================= */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #06101f;
    color: #f5f8ff;
    line-height: 1.6;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }

/* =========================================================
   BACKGROUND
========================================================= */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at 15% 20%, rgba(37, 99, 235, 0.16), transparent 30%),
        radial-gradient(circle at 85% 15%, rgba(6, 182, 212, 0.12), transparent 25%),
        radial-gradient(circle at 50% 90%, rgba(37, 99, 235, 0.08), transparent 30%);
    pointer-events: none;
    z-index: -2;
}

/* =========================================================
   NAVIGATION
========================================================= */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,0.07);
    background: rgba(6, 16, 31, 0.78);
    backdrop-filter: blur(18px);
}
.nav-container {
    max-width: 1200px;
    margin: auto;
    height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 25px;
}
.brand { font-size: 24px; font-weight: 800; letter-spacing: -1px; }
.brand span { color: #3b82f6; }
.nav-links {
    display: flex;
    align-items: center;
    gap: 35px;
    list-style: none;
}
.nav-links a {
    color: #b8c3d6;
    font-size: 14px;
    transition: 0.3s;
}
.nav-links a:hover { color: white; }
.nav-button {
    padding: 11px 20px;
    border-radius: 8px;
    background: #2563eb;
    color: white !important;
    font-weight: 600;
    transition: 0.3s;
}
.nav-button:hover {
    background: #3b82f6;
    transform: translateY(-2px);
}

/* =========================================================
   HERO
========================================================= */
.hero {
    min-height: 100vh;
    max-width: 1200px;
    margin: auto;
    padding: 170px 25px 100px;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 70px;
}
.hero-content { animation: heroEnter 1s ease; }
.eyebrow {
    display: inline-block;
    padding: 7px 13px;
    border: 1px solid rgba(59,130,246,0.3);
    background: rgba(37,99,235,0.08);
    border-radius: 50px;
    color: #60a5fa;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 25px;
}
.hero h1 {
    font-size: clamp(48px, 6vw, 78px);
    line-height: 1.03;
    letter-spacing: -4px;
    max-width: 750px;
}
.gradient-text {
    background: linear-gradient(90deg, #60a5fa, #22d3ee);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero-description {
    margin-top: 28px;
    max-width: 650px;
    color: #9ba9bd;
    font-size: 18px;
}
.hero-buttons {
    display: flex;
    gap: 15px;
    margin-top: 35px;
}
.primary-button, .secondary-button {
    padding: 14px 23px;
    border-radius: 9px;
    font-weight: 600;
    transition: 0.3s;
}
.primary-button {
    background: #2563eb;
}
.primary-button:hover {
    background: #3b82f6;
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(37,99,235,0.25);
}
.secondary-button {
    border: 1px solid rgba(255,255,255,0.14);
    background: rgba(255,255,255,0.03);
}
.secondary-button:hover {
    background: rgba(255,255,255,0.08);
}

/* =========================================================
   AI VISUAL
========================================================= */
.ai-visual {
    position: relative;
    height: 460px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ai-orbit {
    position: absolute;
    width: 390px;
    height: 390px;
    border: 1px solid rgba(59,130,246,0.25);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}
.ai-orbit::before,
.ai-orbit::after {
    content: "";
    position: absolute;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #38bdf8;
    box-shadow: 0 0 25px #38bdf8;
}
.ai-orbit::before { top: 20px; left: 100px; }
.ai-orbit::after { bottom: 50px; right: 35px; }
.ai-core {
    width: 210px;
    height: 210px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle, rgba(37,99,235,0.3), rgba(6,16,31,0.9) 70%);
    border: 1px solid rgba(96,165,250,0.35);
    box-shadow: 0 0 80px rgba(37,99,235,0.25), inset 0 0 60px rgba(6,182,212,0.08);
    animation: pulse 4s ease-in-out infinite;
}
.ai-core-text { text-align: center; }
.ai-core-text strong {
    display: block;
    font-size: 46px;
    letter-spacing: -2px;
}
.ai-core-text span {
    color: #60a5fa;
    font-size: 13px;
    letter-spacing: 3px;
    text-transform: uppercase;
}

/* =========================================================
   SECTIONS
========================================================= */
section:not(.hero) {
    max-width: 1200px;
    margin: auto;
    padding: 110px 25px;
}
.section-header { max-width: 650px; margin-bottom: 55px; }
.section-label {
    color: #60a5fa;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
}
.section-header h2 {
    font-size: clamp(32px, 4vw, 50px);
    line-height: 1.1;
    letter-spacing: -2px;
}
.section-header p {
    margin-top: 18px;
    color: #8e9caf;
}

/* =========================================================
   SERVICES
========================================================= */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.service-card {
    padding: 30px;
    min-height: 270px;
    border: 1px solid rgba(255,255,255,0.08);
    background: linear-gradient(145deg, rgba(255,255,255,0.045), rgba(255,255,255,0.015));
    border-radius: 14px;
    transition: transform 0.35s, border-color 0.35s, background 0.35s;
}
.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(59,130,246,0.45);
    background: rgba(37,99,235,0.07);
}
.service-number { color: #3b82f6; font-size: 13px; font-weight: 700; }
.service-card h3 { margin-top: 45px; font-size: 22px; }
.service-card p {
    margin-top: 12px;
    color: #8f9caf;
    font-size: 15px;
}

/* =========================================================
   ABOUT
========================================================= */
.about {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}
.about-text p {
    color: #9aa7b9;
    margin-top: 20px;
    font-size: 17px;
}
.about-list {
    margin-top: 30px;
    display: grid;
    gap: 14px;
    list-style: none;
}
.about-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #cbd5e1;
}
.check {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #2563eb;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
}
.about-panel {
    padding: 40px;
    border-radius: 16px;
    border: 1px solid rgba(59,130,246,0.2);
    background: linear-gradient(145deg, rgba(37,99,235,0.11), rgba(255,255,255,0.025));
}
.about-panel h3 { font-size: 27px; margin-bottom: 20px; }
.about-panel p { color: #9aa7b9; }

/* =========================================================
   STATS
========================================================= */
.stats-section {
    border-top: 1px solid rgba(255,255,255,0.06);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.big-stat { text-align: center; }
.big-number {
    font-size: 48px;
    font-weight: 800;
    letter-spacing: -2px;
    color: #f8fafc;
}
.big-stat p { color: #7f8da1; font-size: 14px; }

/* =========================================================
   CONTACT
========================================================= */
.contact-box {
    padding: 70px 50px;
    text-align: center;
    border-radius: 20px;
    border: 1px solid rgba(59,130,246,0.25);
    background: radial-gradient(circle at center, rgba(37,99,235,0.13), rgba(255,255,255,0.02));
}
.contact-box h2 {
    font-size: clamp(35px, 5vw, 55px);
    letter-spacing: -2px;
}
.contact-box p {
    max-width: 600px;
    margin: 20px auto 30px;
    color: #929fb2;
}

/* =========================================================
   FOOTER
========================================================= */
footer {
    border-top: 1px solid rgba(255,255,255,0.07);
    padding: 35px 25px;
}
.footer-container {
    max-width: 1200px;
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: #738196;
    font-size: 14px;
}
.footer-brand { color: white; font-weight: 700; }

/* =========================================================
   ANIMATIONS
========================================================= */
@keyframes heroEnter {
    from { opacity: 0; transform: translateY(25px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.06); }
}
.reveal {
    opacity: 0;
    transform: translateY(35px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* =========================================================
   RESPONSIVE
========================================================= */
@media (max-width: 900px) {
    .nav-links { display: none; }
    .hero { grid-template-columns: 1fr; text-align: center; }
    .hero-description { margin-left: auto; margin-right: auto; }
    .hero-buttons { justify-content: center; }
    .ai-visual { height: 380px; }
    .services-grid { grid-template-columns: 1fr 1fr; }
    .about { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
    .hero h1 { letter-spacing: -2px; }
    .hero-buttons { flex-direction: column; }
    .services-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .ai-orbit { width: 290px; height: 290px; }
    .ai-core { width: 160px; height: 160px; }
    .ai-core-text strong { font-size: 36px; }
    .contact-box { padding: 50px 25px; }
    .footer-container { flex-direction: column; gap: 10px; text-align: center; }
}