/* === Reset & Base === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: #1a1a2e;
    background: #fff;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
a { color: inherit; text-decoration: none; }

/* === Nav === */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 20px 0;
    transition: background .3s, padding .3s, box-shadow .3s;
}
.nav.scrolled {
    background: rgba(255,255,255,.95);
    backdrop-filter: blur(12px);
    padding: 14px 0;
    box-shadow: 0 1px 0 rgba(0,0,0,.06);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { font-weight: 700; font-size: 1.25rem; letter-spacing: .08em; color: #1a1a2e; }
.nav-links { display: flex; list-style: none; gap: 36px; }
.nav-links a {
    font-size: .875rem; font-weight: 500; letter-spacing: .02em;
    color: #555; transition: color .2s;
}
.nav-links a:hover { color: #1a1a2e; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span {
    display: block; width: 22px; height: 2px; background: #1a1a2e;
    margin: 5px 0; transition: transform .3s, opacity .3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* === Hero === */
.hero {
    min-height: 100vh;
    display: flex; align-items: center;
    padding: 120px 0 80px;
    background: linear-gradient(170deg, #f8f9fc 0%, #fff 50%);
}
.hero h1 {
    font-size: clamp(2.5rem, 5.5vw, 4.25rem);
    font-weight: 700; line-height: 1.1;
    letter-spacing: -.02em;
    max-width: 680px;
}
.hero-sub {
    margin-top: 24px;
    font-size: 1.125rem; color: #555;
    max-width: 540px; line-height: 1.7;
}
.btn {
    display: inline-block; margin-top: 40px;
    padding: 14px 36px;
    background: #1a1a2e; color: #fff;
    font-size: .9rem; font-weight: 600;
    border-radius: 6px; letter-spacing: .02em;
    transition: background .2s, transform .15s;
}
.btn:hover { background: #2d2d4a; transform: translateY(-1px); }

/* === Sections === */
.section-label {
    font-size: .75rem; font-weight: 600;
    letter-spacing: .12em; text-transform: uppercase;
    color: #888; margin-bottom: 12px;
}
section h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    font-weight: 700; letter-spacing: -.01em;
    margin-bottom: 48px;
}

/* === About === */
.about { padding: 120px 0; background: #fff; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.about-text p { color: #444; margin-bottom: 16px; font-size: 1.05rem; }
.stat { margin-bottom: 32px; }
.stat-icon { color: #1a1a2e; font-size: 1rem; }
.stat h3 { font-size: 1rem; font-weight: 600; margin: 8px 0 4px; }
.stat p { font-size: .9rem; color: #666; }

/* === Solutions === */
.solutions { padding: 120px 0; background: #f8f9fc; }
.solutions-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.solution-card {
    background: #fff; padding: 40px; border-radius: 10px;
    border: 1px solid #eee; transition: box-shadow .25s, transform .2s;
}
.solution-card:hover { box-shadow: 0 8px 30px rgba(0,0,0,.06); transform: translateY(-2px); }
.solution-number {
    font-size: .8rem; font-weight: 600; color: #aaa;
    letter-spacing: .06em; margin-bottom: 16px;
}
.solution-card h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 12px; }
.solution-card p { font-size: .925rem; color: #555; line-height: 1.65; }

/* === Contact === */
.contact { padding: 120px 0; background: #fff; text-align: center; }
.contact-sub { font-size: 1.1rem; color: #555; margin-top: -32px; margin-bottom: 40px; }
.contact-email {
    display: inline-block;
    font-size: 1.5rem; font-weight: 600;
    color: #1a1a2e;
    border-bottom: 2px solid #1a1a2e;
    padding-bottom: 4px;
    transition: opacity .2s;
}
.contact-email:hover { opacity: .7; }
.contact-info { margin-top: 32px; color: #888; font-size: .9rem; }

/* === Footer === */
.footer {
    padding: 32px 0;
    border-top: 1px solid #eee;
}
.footer-inner { display: flex; justify-content: space-between; align-items: center; }
.footer-logo { font-weight: 700; font-size: .9rem; letter-spacing: .08em; color: #aaa; }
.footer-copy { font-size: .8rem; color: #aaa; }

/* === Mobile === */
@media (max-width: 768px) {
    .nav-links {
        position: fixed; top: 0; right: -100%; width: 260px; height: 100vh;
        background: #fff; flex-direction: column; padding: 80px 32px;
        gap: 24px; box-shadow: -4px 0 20px rgba(0,0,0,.08);
        transition: right .3s;
    }
    .nav-links.open { right: 0; }
    .nav-links a { font-size: 1rem; }
    .nav-toggle { display: block; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .solutions-grid { grid-template-columns: 1fr; }
    .hero { min-height: auto; padding: 140px 0 80px; }
    .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
}