:root {
    --bg: #F5F8FA;
    --surface: #FFFFFF;
    --ink: #12232E;
    --ink-soft: rgba(18, 35, 46, .62);
    --accent: #2F80ED;
    --accent-dark: #1D5FC2;
    --line: rgba(18, 35, 46, .1);
    --font-display: "Oswald", sans-serif;
    --font-body: "Poppins", sans-serif;
    --font-mono: "IBM Plex Mono", monospace;
    --container: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 32px;
}

h1, h2 {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: -0.005em;
}

.section__label {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 14px;
}

.section__heading {
    font-size: clamp(30px, 4vw, 42px);
    line-height: 1.15;
    margin-bottom: 18px;
}

.section__head {
    max-width: 620px;
    margin: 0 auto 48px;
    text-align: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 15px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}

.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-dark); transform: translateY(-1px); }

.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

/* Nav */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(245, 248, 250, .92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
}

.nav__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 84px;
}

.nav__logo {
    font-family: var(--font-display);
    font-size: 21px;
    font-weight: 600;
    color: var(--accent-dark);
}

.nav__panel { display: flex; align-items: center; gap: 40px; }
.nav__links { display: flex; align-items: center; gap: 32px; }

.nav__links a {
    font-size: 15px;
    font-weight: 500;
    color: var(--ink-soft);
    transition: color .15s ease;
}
.nav__links a:hover { color: var(--accent); }

.nav__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 28px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px 0;
}
.nav__burger span {
    display: block;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: transform .2s ease, opacity .2s ease;
}

/* Hero */
.hero { padding: 72px 0 96px; }

.hero__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.hero__eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-dark);
    background: rgba(47, 128, 237, .1);
    padding: 7px 14px;
    border-radius: 999px;
    margin-bottom: 20px;
}

.hero__title {
    font-size: clamp(38px, 5vw, 58px);
    line-height: 1.1;
    margin-bottom: 24px;
}
.hero__title span { display: block; }
.hero__title--accent { color: var(--accent); }

.hero__lead {
    font-size: 18px;
    color: var(--ink-soft);
    max-width: 480px;
    margin-bottom: 34px;
}

.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero__image { border-radius: 24px; overflow: hidden; aspect-ratio: 4 / 5; }
.hero__image img { width: 100%; height: 100%; object-fit: cover; }

/* Stats */
.stats { padding: 0 0 96px; }

.stats__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 40px 32px;
}

.stats__item { text-align: center; display: flex; flex-direction: column; gap: 6px; }

.stats__value {
    font-family: var(--font-display);
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 600;
    color: var(--accent-dark);
}

.stats__label { font-size: 14px; color: var(--ink-soft); }

/* Services */
.services { padding: 0 0 96px; }

.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 28px;
    transition: transform .2s ease, box-shadow .2s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: 0 20px 40px rgba(18, 35, 46, .07); }

.service-card__icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: rgba(47, 128, 237, .1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 18px;
}

.service-card__title {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.service-card__desc { font-size: 14px; color: var(--ink-soft); }

/* FAQ */
.faq { padding: 0 0 96px; }

.faq__list {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 6px 24px;
}

.faq-item summary {
    cursor: pointer;
    list-style: none;
    padding: 18px 0;
    font-weight: 600;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
    content: "+";
    font-family: var(--font-mono);
    font-size: 20px;
    color: var(--accent);
    flex-shrink: 0;
    transition: transform .2s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }

.faq-item__answer {
    font-size: 15px;
    color: var(--ink-soft);
    padding: 0 0 20px;
}

/* Contact */
.contact { padding: 0 0 110px; }

.contact__grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 56px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 56px;
}

.contact__list {
    list-style: none;
    margin: 24px 0 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.contact__list li {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line);
    font-size: 15px;
}
.contact__list li span { color: var(--ink-soft); }
.contact__list li strong { font-weight: 600; text-align: right; }

.contact__social { display: flex; gap: 20px; }
.contact__social a { font-size: 14px; font-weight: 600; color: var(--accent); }
.contact__social a:hover { text-decoration: underline; }

.contact__form { display: flex; flex-direction: column; gap: 14px; }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.contact__form input,
.contact__form textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--bg);
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--ink);
    resize: vertical;
}
.contact__form input:focus,
.contact__form textarea:focus { outline: none; border-color: var(--accent); }

.contact__form button { align-self: flex-start; margin-top: 4px; }

.contact__form-note { font-size: 14px; color: var(--accent-dark); min-height: 18px; }

/* Footer */
.footer { padding: 32px 0; border-top: 1px solid var(--line); }

.footer__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.footer__logo { font-family: var(--font-display); font-weight: 600; font-size: 16px; color: var(--accent-dark); }
.footer__copy { font-size: 13px; color: var(--ink-soft); }

.footer__meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.footer__credit { font-size: 13px; color: var(--ink-soft); text-decoration: underline; text-underline-offset: 2px; }
.footer__credit:hover { color: var(--accent); }

/* Responsive */
@media (max-width: 900px) {
    .hero__grid { grid-template-columns: 1fr; gap: 40px; }
    .hero__image { order: -1; aspect-ratio: 16 / 10; }
    .hero__lead { max-width: none; }

    .stats__grid { grid-template-columns: repeat(2, 1fr); }

    .services__grid { grid-template-columns: repeat(2, 1fr); }

    .contact__grid { grid-template-columns: 1fr; padding: 36px 28px; }
}

@media (max-width: 640px) {
    .container { padding: 0 20px; }

    .nav__row { height: 68px; }
    .nav__logo { font-size: 17px; }
    .nav__burger { display: flex; }

    .nav__panel {
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--line);
        padding: 8px 20px 20px;
        max-height: 0;
        overflow: hidden;
        transition: max-height .25s ease;
    }
    .nav.is-open .nav__panel { max-height: 400px; }

    .nav__links { flex-direction: column; align-items: flex-start; gap: 4px; padding: 10px 0; }
    .nav__links a { padding: 10px 0; width: 100%; }
    .nav__cta { margin-top: 8px; width: 100%; }

    .hero { padding: 40px 0 64px; }

    .stats__grid { grid-template-columns: repeat(2, 1fr); padding: 28px 20px; gap: 20px; }

    .services__grid { grid-template-columns: 1fr; }

    .field-row { grid-template-columns: 1fr; }

    .contact__grid { padding: 28px 20px; }

    .footer__row { flex-direction: column; align-items: flex-start; }
}