:root {
    --navy: #0b2447;
    --navy-2: #163a6b;
    --teal: #2fbfcb;
    --teal-light: #a6e3e9;
    --text: #1d2939;
    --muted: #5b6b80;
    --bg: #ffffff;
    --bg-alt: #f3f7fa;
    --line: #dfe7ee;
    --radius: 14px;
    --font: "Montserrat", "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    margin: 0;
    font-family: var(--font);
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: var(--navy-2); }
h1, h2, h3 { color: var(--navy); line-height: 1.2; margin: 0 0 .5em; }

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }

/* Buttons */
.btn {
    display: inline-block;
    background: var(--teal);
    color: var(--navy);
    font-weight: 700;
    text-decoration: none;
    padding: 14px 24px;
    border-radius: 999px;
    border: 2px solid var(--teal);
    cursor: pointer;
    font: inherit;
    font-weight: 700;
    transition: transform .15s, background .15s;
}
.btn:hover { background: #4fd0da; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn-ghost:hover { background: rgba(255,255,255,.1); }
.btn-small { padding: 8px 18px; }

/* Header */
.site-header {
    position: sticky; top: 0; z-index: 10;
    background: rgba(255,255,255,.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: flex-end; gap: 8px; text-decoration: none; }
.brand img { height: 40px; width: auto; }
.brand span { color: var(--navy); font-size: 1.15rem; font-weight: 500; letter-spacing: .04em; line-height: 1; padding-bottom: 2px; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a:not(.btn) { color: var(--text); text-decoration: none; font-weight: 600; }
.nav a:not(.btn):hover { color: var(--teal); }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--navy); margin: 5px 0; }

/* Hero */
.hero {
    background: radial-gradient(ellipse at 80% 20%, var(--navy-2), var(--navy) 60%);
    color: #dbe6f3;
    padding: 88px 0 96px;
    overflow: hidden;
}
.hero-inner { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center; }
.hero h1 { color: #fff; font-size: clamp(2rem, 4.5vw, 3.2rem); font-weight: 800; }
.accent { color: var(--teal); }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; font-weight: 700; color: var(--teal-light); margin: 0 0 12px; }
.lead { font-size: 1.15rem; max-width: 34em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* Signal animation (matches logo) */
.hero-visual { display: flex; justify-content: center; }
.signal { position: relative; width: 260px; height: 260px; }
.signal i {
    position: absolute; left: 0; bottom: 0;
    width: 56px; height: 56px; border-radius: 50%;
    background: var(--teal);
    box-shadow: 0 0 40px rgba(47,191,203,.6);
}
.signal span {
    position: absolute; left: 0; bottom: 0;
    border: 8px solid var(--teal);
    border-color: var(--teal) var(--teal) transparent transparent;
    border-radius: 0 100% 0 0;
    opacity: 0;
    animation: pulse 2.4s infinite;
}
.signal span:nth-child(1) { width: 120px; height: 120px; animation-delay: 0s; }
.signal span:nth-child(2) { width: 190px; height: 190px; animation-delay: .3s; }
.signal span:nth-child(3) { width: 260px; height: 260px; animation-delay: .6s; }
@keyframes pulse {
    0%, 100% { opacity: .15; }
    40% { opacity: .95; }
}
@media (prefers-reduced-motion: reduce) {
    .signal span { animation: none; opacity: .7; }
}

/* Audience cards */
.audience { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: -48px; position: relative; }
.card-audience {
    background: #fff;
    border-radius: var(--radius);
    padding: 28px 32px;
    box-shadow: 0 12px 32px rgba(11,36,71,.12);
    border-top: 4px solid var(--teal);
}
.card-audience h2 { font-size: 1.3rem; }
.card-audience p { margin: 0; color: var(--muted); }

/* Sections */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }
.section-title { font-size: clamp(1.6rem, 3vw, 2.2rem); text-align: center; margin-bottom: 40px; }
.section-title.left { text-align: left; margin-bottom: 16px; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service {
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    transition: border-color .2s, box-shadow .2s;
}
.service:hover { border-color: var(--teal); box-shadow: 0 8px 24px rgba(11,36,71,.08); }
.service svg {
    width: 44px; height: 44px; padding: 9px;
    background: #e6f7f9; border-radius: 12px;
    fill: none; stroke: var(--navy-2); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
    margin-bottom: 14px;
}
.service circle[r="1.2"] { fill: var(--navy-2); }
.service h3 { font-size: 1.1rem; }
.service p { margin: 0; color: var(--muted); }

/* Steps */
.steps { list-style: none; counter-reset: step; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.steps li { counter-increment: step; background: #fff; padding: 28px 24px; border-radius: var(--radius); }
.steps li::before {
    content: counter(step);
    display: inline-grid; place-items: center;
    width: 40px; height: 40px; border-radius: 50%;
    background: var(--navy); color: var(--teal);
    font-weight: 800; margin-bottom: 14px;
}
.steps h3 { font-size: 1.1rem; }
.steps p { margin: 0; color: var(--muted); }

/* FAQ */
details { border-bottom: 1px solid var(--line); padding: 18px 0; }
summary { cursor: pointer; font-weight: 700; color: var(--navy); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--teal); font-size: 1.4rem; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { color: var(--muted); margin: 12px 0 0; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: start; }
.contact-list { list-style: none; padding: 0; margin: 24px 0 0; }
.contact-list li { padding: 10px 0; border-bottom: 1px solid var(--line); }
.contact-list strong { display: inline-block; width: 90px; color: var(--navy); }

.form { background: #fff; padding: 32px; border-radius: var(--radius); box-shadow: 0 12px 32px rgba(11,36,71,.08); }
.form label { display: block; font-weight: 600; color: var(--navy); margin-bottom: 16px; }
.form small { font-weight: 400; color: var(--muted); }
.form input[type=text], .form input[type=email], .form input[type=tel], .form textarea {
    display: block; width: 100%; margin-top: 6px;
    padding: 12px 14px; border: 1px solid #c9d5e0; border-radius: 10px;
    font: inherit; color: var(--text); background: #fbfdfe;
}
.form input:focus, .form textarea:focus { outline: 2px solid var(--teal); border-color: var(--teal); }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form fieldset { border: 0; padding: 0; margin: 0 0 16px; }
.form legend { font-weight: 600; color: var(--navy); margin-bottom: 6px; }
.form .radio { display: inline-flex; align-items: center; gap: 6px; font-weight: 400; color: var(--text); margin: 0 18px 0 0; }
.form .err { display: block; color: #c0392b; font-size: .85rem; font-weight: 500; margin-top: 4px; }
.form .small { font-size: .85rem; color: var(--muted); }
.hp { position: absolute; left: -9999px; }
.alert { padding: 12px 16px; border-radius: 10px; margin: 0 0 20px; }
.alert-ok { background: #e3f7ef; color: #146c43; }
.alert-err { background: #fdecea; color: #a12a1f; }

/* Privacy text */
.prose h1 { font-size: 2rem; }
.prose h2 { font-size: 1.2rem; margin-top: 1.6em; }

/* Footer */
.site-footer { background: var(--navy); color: #b7c6d8; padding: 56px 0 24px; font-size: .95rem; }
.site-footer a { color: #fff; }
.site-footer h3 { color: #fff; font-size: 1rem; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.footer-logo { width: 140px; background: #fff; padding: 12px 16px; border-radius: 10px; box-sizing: content-box; }
.copyright { border-top: 1px solid rgba(255,255,255,.12); margin-top: 32px; padding-top: 20px; font-size: .85rem; }

/* Responsive */
@media (max-width: 900px) {
    .grid { grid-template-columns: 1fr 1fr; }
    .steps { grid-template-columns: 1fr 1fr; }
    .contact-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 720px) {
    .nav-toggle { display: block; }
    .nav {
        display: none;
        position: absolute; top: 68px; left: 0; right: 0;
        flex-direction: column; gap: 0;
        background: #fff; border-bottom: 1px solid var(--line);
        padding: 8px 20px 20px;
    }
    .nav.open { display: flex; }
    .nav a:not(.btn) { padding: 12px 0; width: 100%; border-bottom: 1px solid var(--line); }
    .nav .btn { margin-top: 16px; }
    .hero { padding: 56px 0 80px; }
    .hero-inner { grid-template-columns: 1fr; }
    .hero-visual { display: none; }
    .audience, .grid, .steps, .footer-inner, .form .row { grid-template-columns: 1fr; }
    .section { padding: 64px 0; }
    .form { padding: 22px; }
}