:root {
    color-scheme: light;
    --navy: #172033;
    --navy-soft: #263149;
    --blue: #2563eb;
    --blue-dark: #1d4ed8;
    --ink: #1e293b;
    --muted: #64748b;
    --line: #dfe5ec;
    --surface: #ffffff;
    --surface-soft: #f5f7fa;
    --success: #14805e;
    --radius: 14px;
    --shadow: 0 18px 45px rgba(23, 32, 51, 0.12);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--surface);
    color: var(--ink);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; }
button, input, textarea, select { font: inherit; }

.container {
    width: min(1160px, calc(100% - 40px));
    margin-inline: auto;
}

.skip-link {
    position: fixed;
    z-index: 1000;
    top: 12px;
    left: 12px;
    padding: 10px 14px;
    border-radius: 8px;
    background: var(--navy);
    color: #fff;
    transform: translateY(-150%);
}

.skip-link:focus { transform: translateY(0); }

:focus-visible {
    outline: 3px solid rgba(37, 99, 235, 0.38);
    outline-offset: 3px;
}

.site-header {
    position: sticky;
    z-index: 100;
    top: 0;
    border-bottom: 1px solid rgba(223, 229, 236, 0.9);
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
}

.header-inner {
    display: flex;
    min-height: 72px;
    align-items: center;
    gap: 30px;
}

.brand { flex: 0 0 auto; }
.brand img { width: 174px; height: auto; }

.site-nav {
    display: flex;
    flex: 1;
    justify-content: center;
    gap: 26px;
}

.site-nav a,
.site-footer a,
.privacy-settings {
    border: 0;
    background: transparent;
    color: #475569;
    font-size: 0.92rem;
    text-decoration: none;
}

.site-nav a:hover,
.site-footer a:hover,
.privacy-settings:hover { color: var(--blue); }

.button {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    border: 1px solid transparent;
    border-radius: 9px;
    padding: 11px 19px;
    font-weight: 700;
    line-height: 1.15;
    text-decoration: none;
    transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease, transform 150ms ease;
}

.button:hover { transform: translateY(-1px); }
.button-primary { background: var(--blue); color: #fff; }
.button-primary:hover { background: var(--blue-dark); }
.button-secondary { border-color: #cbd5e1; background: #fff; color: var(--navy); }
.button-secondary:hover { border-color: #94a3b8; background: #f8fafc; }
.button-compact { min-height: 40px; padding: 9px 15px; font-size: 0.9rem; }

.hero {
    overflow: hidden;
    padding: 92px 0 84px;
    background: #fbfcfe;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.88fr) minmax(540px, 1.12fr);
    align-items: center;
    gap: 66px;
}

.eyebrow {
    margin: 0 0 15px;
    color: var(--blue-dark);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.11em;
    text-transform: uppercase;
}

.hero h1,
.section h2,
.contact-section h2 {
    margin: 0;
    color: var(--navy);
    font-weight: 760;
    letter-spacing: -0.035em;
    line-height: 1.08;
}

.hero h1 { max-width: 700px; font-size: clamp(2.65rem, 5vw, 4.35rem); }
.hero-lead { max-width: 650px; margin: 24px 0 0; color: #526078; font-size: 1.13rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 31px; }

.hero-points {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    margin: 27px 0 0;
    padding: 0;
    color: #526078;
    font-size: 0.89rem;
    list-style: none;
}

.hero-points li::before { content: "✓"; margin-right: 7px; color: var(--success); font-weight: 800; }

.product-window {
    overflow: hidden;
    border: 1px solid #d6dde7;
    border-radius: 16px;
    background: #fff;
    box-shadow: var(--shadow);
}

.window-bar {
    display: flex;
    min-height: 49px;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #e2e8f0;
    padding: 0 18px;
    color: #475569;
    font-size: 0.72rem;
}

.window-brand { font-weight: 750; color: var(--navy); }
.window-status { display: inline-flex; align-items: center; gap: 6px; }
.window-status span { width: 7px; height: 7px; border-radius: 50%; background: #16a374; }
.window-body { display: grid; min-height: 386px; grid-template-columns: 52px 188px 1fr; }

.preview-sidebar { display: flex; flex-direction: column; align-items: center; gap: 22px; background: var(--navy); padding: 15px 0; }
.preview-sidebar span { width: 17px; height: 3px; border-radius: 10px; background: #68748b; }
.preview-sidebar .preview-logo { width: 25px; height: 25px; margin-bottom: 10px; border-radius: 7px; background: #fff; }
.conversation-list { border-right: 1px solid #e7ebf0; padding: 15px 10px; }
.conversation-list > strong { color: var(--navy); font-size: 0.82rem; }
.preview-search { height: 24px; margin: 11px 0; border-radius: 6px; background: #f0f3f7; }
.conversation { display: grid; grid-template-columns: 29px 1fr auto; align-items: center; gap: 7px; margin-bottom: 4px; border-radius: 7px; padding: 8px 6px; }
.conversation.active { background: #edf4ff; }
.conversation i { display: grid; width: 29px; height: 29px; place-items: center; border-radius: 50%; background: #dce6f5; color: #345179; font-size: 0.56rem; font-style: normal; font-weight: 800; }
.conversation span { min-width: 0; }
.conversation b, .conversation small { display: block; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.conversation b { color: #26344a; font-size: 0.62rem; }
.conversation small { color: #7a8698; font-size: 0.53rem; }
.conversation time { align-self: start; color: #8a95a5; font-size: 0.47rem; }
.chat-preview { display: flex; min-width: 0; flex-direction: column; background: #f6f8fb; }
.chat-head { display: flex; min-height: 54px; align-items: center; justify-content: space-between; border-bottom: 1px solid #e4e9ef; background: #fff; padding: 8px 13px; }
.chat-head b, .chat-head small { display: block; }
.chat-head b { color: var(--navy); font-size: 0.68rem; }
.chat-head small { color: #7b8798; font-size: 0.5rem; }
.chat-head em { color: #657287; font-size: 0.48rem; font-style: normal; }
.chat-messages { display: flex; flex: 1; flex-direction: column; justify-content: flex-end; gap: 7px; padding: 17px 13px; }
.message { max-width: 79%; margin: 0; border-radius: 8px; padding: 8px 10px; color: #354257; font-size: 0.57rem; line-height: 1.4; }
.message.incoming { align-self: flex-start; border: 1px solid #e2e7ee; background: #fff; }
.message.outgoing { align-self: flex-end; background: #dcecff; }
.message.short { max-width: 55%; }
.composer-preview { display: flex; min-height: 43px; align-items: center; justify-content: space-between; border-top: 1px solid #e2e7ee; background: #fff; padding: 7px 9px 7px 13px; color: #9aa4b2; font-size: 0.55rem; }
.composer-preview b { border-radius: 5px; background: var(--blue); padding: 6px 9px; color: #fff; }

.platform-strip { border-block: 1px solid var(--line); background: #fff; }
.strip-inner { display: grid; grid-template-columns: repeat(6, 1fr); }
.strip-inner span { border-right: 1px solid var(--line); padding: 17px 10px; color: #64748b; font-size: 0.78rem; font-weight: 750; letter-spacing: 0.04em; text-align: center; text-transform: uppercase; }
.strip-inner span:first-child { border-left: 1px solid var(--line); }

.section { padding: 96px 0; }
.section-muted { background: var(--surface-soft); }
.section h2, .contact-section h2 { max-width: 720px; font-size: clamp(2rem, 3.4vw, 3.2rem); }
.section-copy > p:not(.eyebrow), .section-heading > p:not(.eyebrow), .contact-section p { max-width: 650px; color: var(--muted); font-size: 1.04rem; }
.two-column, .integration-grid, .security-grid, .contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; align-items: start; gap: 78px; }
.text-link { display: inline-flex; gap: 8px; margin-top: 14px; color: var(--blue-dark); font-weight: 750; text-decoration: none; }
.text-link:hover { text-decoration: underline; }

.capability-list { border-top: 1px solid var(--line); }
.capability-list article { display: grid; grid-template-columns: 42px 1fr; gap: 16px; border-bottom: 1px solid var(--line); padding: 25px 0; }
.capability-list article > span { color: #8c99ab; font-size: 0.76rem; font-weight: 800; }
.capability-list h3, .feature-grid h3 { margin: 0 0 5px; color: var(--navy); font-size: 1.02rem; }
.capability-list p, .feature-grid p { margin: 0; color: var(--muted); font-size: 0.92rem; }
.section-heading { max-width: 760px; margin-bottom: 42px; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.feature-grid article { min-height: 238px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; padding: 28px; }
.feature-mark { display: grid; width: 38px; height: 38px; margin-bottom: 34px; place-items: center; border: 1px solid #b9c7d9; border-radius: 8px; color: #3d5e88; font-size: 0.7rem; font-weight: 850; }

.integration-grid { align-items: center; }
.integration-panel { display: grid; min-height: 330px; grid-template-columns: 110px 1fr 112px; align-items: center; border: 1px solid var(--line); border-radius: var(--radius); background: #f8fafc; padding: 34px; }
.integration-source { display: grid; width: 82px; height: 82px; place-items: center; border: 1px solid #d5dce6; border-radius: 16px; background: #fff; box-shadow: 0 9px 22px rgba(23, 32, 51, 0.08); }
.integration-source img { width: 47px; }
.integration-lines { display: flex; flex-direction: column; gap: 35px; }
.integration-lines span { display: block; height: 1px; background: #bfc9d6; }
.integration-targets { display: flex; flex-direction: column; gap: 15px; }
.integration-targets b { border: 1px solid #d5dce6; border-radius: 8px; background: #fff; padding: 10px; color: #48576d; font-size: 0.69rem; text-align: center; }
.check-list { display: grid; gap: 9px; margin: 25px 0 0; padding: 0; color: #526078; list-style: none; }
.check-list li::before { content: "—"; margin-right: 10px; color: var(--blue); font-weight: 800; }

.security-section { background: var(--navy); color: #fff; }
.security-section h2 { color: #fff; }
.security-section p { color: #cbd4e1; }
.eyebrow-light { color: #8db7ff; }
.security-list { border-top: 1px solid #41506a; }
.security-list p { display: grid; grid-template-columns: 155px 1fr; gap: 28px; margin: 0; border-bottom: 1px solid #41506a; padding: 22px 0; }
.security-list strong { color: #fff; font-size: 0.9rem; }
.security-list span { color: #bec8d7; font-size: 0.9rem; }

.contact-section { padding: 96px 0; background: #eef3f8; }
.contact-grid { align-items: center; }
.contact-card { overflow: hidden; border: 1px solid #d5dde7; border-radius: 12px; background: #fff; box-shadow: 0 12px 30px rgba(23, 32, 51, 0.08); font-style: normal; }
.contact-row { display: flex; align-items: center; justify-content: space-between; gap: 25px; border-bottom: 1px solid var(--line); padding: 18px 21px; text-decoration: none; }
.contact-row:last-child { border-bottom: 0; }
.contact-row:hover { background: #f7f9fc; }
.contact-row span { color: #64748b; font-size: 0.84rem; }
.contact-row strong { overflow-wrap: anywhere; color: var(--navy); font-size: 0.9rem; text-align: right; }

.site-footer { padding: 32px 0; background: #101725; color: #aeb8c8; }
.footer-inner { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 30px; }
.footer-inner img { width: 145px; }
.footer-inner p { margin: 0; font-size: 0.83rem; }
.footer-inner > div { display: flex; align-items: center; gap: 20px; }
.privacy-settings { padding: 0; cursor: pointer; }

.consent {
    position: fixed;
    z-index: 500;
    right: 24px;
    bottom: 24px;
    display: grid;
    width: min(520px, calc(100% - 32px));
    grid-template-columns: 1fr auto;
    gap: 24px;
    border: 1px solid #ccd5e0;
    border-radius: 12px;
    background: #fff;
    padding: 20px;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.2);
}

.consent[hidden] { display: none; }
.consent strong { color: var(--navy); }
.consent p { margin: 4px 0 0; color: #64748b; font-size: 0.83rem; line-height: 1.45; }
.consent-actions { display: flex; align-items: center; gap: 8px; }

@media (max-width: 980px) {
    .site-nav { display: none; }
    .header-inner { justify-content: space-between; }
    .hero { padding-top: 66px; }
    .hero-grid, .two-column, .integration-grid, .security-grid, .contact-grid { grid-template-columns: 1fr; gap: 48px; }
    .hero-grid { max-width: 760px; }
    .product-window { width: 100%; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .section { padding: 78px 0; }
}

@media (max-width: 680px) {
    .container { width: min(100% - 28px, 1160px); }
    .header-inner { min-height: 64px; }
    .brand img { width: 150px; }
    .hero { padding: 54px 0 60px; }
    .hero h1 { font-size: clamp(2.35rem, 12vw, 3.25rem); }
    .hero-lead { font-size: 1rem; }
    .hero-actions .button { width: 100%; }
    .hero-points { display: grid; gap: 8px; }
    .window-body { min-height: 330px; grid-template-columns: 42px 1fr; }
    .conversation-list { display: none; }
    .chat-head em { display: none; }
    .strip-inner { grid-template-columns: repeat(3, 1fr); }
    .strip-inner span { border-bottom: 1px solid var(--line); }
    .section, .contact-section { padding: 64px 0; }
    .feature-grid { grid-template-columns: 1fr; }
    .feature-grid article { min-height: auto; }
    .integration-panel { min-height: 260px; grid-template-columns: 72px 1fr 84px; padding: 22px 17px; }
    .integration-source { width: 62px; height: 62px; }
    .integration-source img { width: 35px; }
    .security-list p { grid-template-columns: 1fr; gap: 5px; }
    .contact-row { align-items: flex-start; flex-direction: column; gap: 3px; }
    .contact-row strong { text-align: left; }
    .footer-inner { grid-template-columns: 1fr; justify-items: start; }
    .consent { right: 16px; bottom: 16px; grid-template-columns: 1fr; gap: 14px; }
    .consent-actions { justify-content: flex-end; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}