:root {
    --bg: #f5f7fb;
    --surface: #ffffff;
    --text: #163049;
    --muted: #5f7287;
    --primary: #0077b6;
    --primary-dark: #005f8e;
    --border: #dce5ef;
    --shadow: 0 18px 40px rgba(22, 48, 73, 0.08);
    --radius: 18px;
    --max-width: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
.container { width: min(100% - 2rem, var(--max-width)); margin: 0 auto; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 0;
}
.brand { display: flex; align-items: center; gap: .85rem; color: var(--text); }
.brand strong { display: block; font-size: 1.05rem; }
.brand small { color: var(--muted); display: block; }
.brand-mark {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    color: #fff;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), #00b4d8);
}
.main-nav ul {
    list-style: none;
    display: flex;
    gap: 1rem;
    margin: 0;
    padding: 0;
}
.main-nav a {
    color: var(--text);
    font-weight: 600;
    padding: .55rem .75rem;
    border-radius: 999px;
}
.main-nav a.active,
.main-nav a:hover {
    background: #e9f5fb;
    color: var(--primary-dark);
}
.nav-toggle {
    display: none;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 12px;
    padding: .6rem .8rem;
    font-size: 1.2rem;
}

.hero {
    padding: 4.5rem 0 3rem;
    background:
        radial-gradient(circle at top right, rgba(0,180,216,.18), transparent 30%),
        linear-gradient(180deg, #ffffff 0%, #f5f7fb 100%);
}
.hero-grid,
.two-col,
.cards,
.stats,
.footer-grid,
.highlight-grid { display: grid; gap: 1.5rem; }
.hero-grid { grid-template-columns: 1.3fr .9fr; align-items: center; }
.hero-card,
.card,
.info-box,
.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.hero-card { padding: 2rem; }
.hero h1,
.page-hero h1 { font-size: clamp(2rem, 4vw, 3.3rem); line-height: 1.1; margin: 0 0 1rem; }
.lead { font-size: 1.08rem; color: var(--muted); margin-bottom: 1.5rem; }
.actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 1rem; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: .9rem 1.2rem;
    border-radius: 999px;
    font-weight: 700;
    border: 1px solid transparent;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-secondary { background: #fff; color: var(--text); border-color: var(--border); }
.hero-side {
    padding: 1.4rem;
    background: linear-gradient(160deg, #0d3b66 0%, #1d6fa5 100%);
    color: #fff;
}
.hero-side h2 { margin-top: 0; }
.hero-side ul { padding-left: 1.1rem; }
.hero-side li + li { margin-top: .6rem; }

.section { padding: 3.2rem 0; }
.section-title { margin: 0 0 .4rem; font-size: 2rem; }
.section-intro { max-width: 760px; color: var(--muted); margin-bottom: 1.5rem; }
.cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card { padding: 1.4rem; }
.card h3 { margin-top: 0; }
.card p { color: var(--muted); }
.card ul { padding-left: 1rem; }
.stats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stat { padding: 1.4rem; text-align: center; }
.stat strong { display: block; font-size: 2rem; }
.two-col { grid-template-columns: 1fr 1fr; align-items: start; }
.info-box, .panel { padding: 1.5rem; }
.page-hero { padding: 3.5rem 0 2rem; }
.page-hero p { max-width: 780px; color: var(--muted); }
.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li { padding-left: 1.6rem; position: relative; margin-bottom: .85rem; }
.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}
.highlight-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.badge {
    display: inline-block;
    padding: .35rem .65rem;
    border-radius: 999px;
    background: #e9f5fb;
    color: var(--primary-dark);
    font-weight: 700;
    margin-bottom: .8rem;
}
.cta-band {
    margin-top: 1rem;
    padding: 1.5rem;
    border-radius: var(--radius);
    background: linear-gradient(135deg, #0077b6, #00b4d8);
    color: #fff;
}
.cta-band h2, .cta-band p { color: #fff; margin-top: 0; }
.site-footer {
    background: #0f2234;
    color: rgba(255,255,255,.88);
    margin-top: 2rem;
}
.site-footer a { color: #d7effa; }
.footer-grid { grid-template-columns: 1.2fr .8fr .8fr; padding: 3rem 0 1.5rem; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li + li { margin-top: .45rem; }
.footer-bottom {
    padding: 1rem 0 1.8rem;
    border-top: 1px solid rgba(255,255,255,.12);
    font-size: .95rem;
}

@media (max-width: 900px) {
    .hero-grid,
    .two-col,
    .footer-grid,
    .highlight-grid,
    .cards,
    .stats { grid-template-columns: 1fr; }

    .nav-toggle { display: block; }
    .main-nav {
        display: none;
        position: absolute;
        top: 76px;
        left: 1rem;
        right: 1rem;
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 16px;
        box-shadow: var(--shadow);
        padding: 1rem;
    }
    .main-nav.open { display: block; }
    .main-nav ul { flex-direction: column; }
}