:root {
    --bg: #f5f7f9;
    --surface: #ffffff;
    --surface-soft: #eef2f5;
    --ink: #111820;
    --ink-soft: #53606d;
    --line: #d9e0e6;
    --dark: #0d141b;
    --dark-soft: #18222d;
    --accent: #176f8c;
    --accent-dark: #0e526b;
    --accent-soft: #dceef3;
    --success: #1f7757;
    --max-width: 1180px;
    --radius: 18px;
    --shadow: 0 18px 50px rgba(14, 25, 36, 0.08);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family:
        Inter,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
}

img {
    max-width: 100%;
}

.container {
    width: min(calc(100% - 40px), var(--max-width));
    margin: 0 auto;
}


/* =========================================================
   HEADER
========================================================= */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(217, 224, 230, 0.9);
    backdrop-filter: blur(12px);
}

.nav-wrap {
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.brand-mark {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    background: var(--dark);
    color: #ffffff;
    font-size: 19px;
    font-weight: 800;
    letter-spacing: -0.04em;
}

.brand strong,
.brand small {
    display: block;
}

.brand strong {
    font-size: 15px;
    letter-spacing: 0.16em;
}

.brand small {
    margin-top: -3px;
    color: var(--ink-soft);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.32em;
}

nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

nav a {
    color: #3d4853;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s ease;
}

nav a:hover {
    color: var(--accent);
}

.nav-contact {
    padding: 10px 17px;
    border: 1px solid #cdd6dd;
    border-radius: 8px;
}


/* =========================================================
   GENERAL TYPOGRAPHY
========================================================= */

.eyebrow {
    margin-bottom: 16px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.17em;
}

h1,
h2,
h3 {
    margin-top: 0;
    line-height: 1.12;
    letter-spacing: -0.035em;
}

h1 {
    margin-bottom: 24px;
    font-size: clamp(44px, 6vw, 76px);
    font-weight: 750;
}

h1 span {
    display: block;
    color: var(--accent);
}

h2 {
    margin-bottom: 22px;
    font-size: clamp(34px, 4vw, 52px);
    font-weight: 730;
}

h3 {
    margin-bottom: 12px;
    font-size: 21px;
    font-weight: 720;
}

p {
    margin-top: 0;
    color: var(--ink-soft);
}

.section {
    padding: 108px 0;
}

.section-heading {
    max-width: 780px;
    margin-bottom: 54px;
}

.section-heading.narrow {
    max-width: 880px;
}

.section-heading > p {
    max-width: 800px;
    font-size: 18px;
}

.section-heading > p + p {
    margin-top: 18px;
}


/* =========================================================
   HERO
========================================================= */

.hero {
    position: relative;
    overflow: hidden;
    padding: 118px 0 104px;
    background:
        linear-gradient(180deg, #ffffff 0%, #f6f9fb 100%);
}

.hero::after {
    content: "";
    position: absolute;
    top: -250px;
    right: -250px;
    width: 600px;
    height: 600px;
    border: 1px solid rgba(23, 111, 140, 0.1);
    border-radius: 50%;
    box-shadow:
        0 0 0 90px rgba(23, 111, 140, 0.025),
        0 0 0 180px rgba(23, 111, 140, 0.02);
}

.hero-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(330px, 0.55fr);
    gap: 72px;
    align-items: center;
}

.hero-copy {
    max-width: 760px;
}

.hero-lead {
    max-width: 720px;
    margin-bottom: 20px;
    color: #26333e;
    font-size: 21px;
    line-height: 1.65;
}

.hero-summary {
    max-width: 700px;
    margin-bottom: 34px;
    font-size: 16px;
    line-height: 1.75;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 13px;
}

.button {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    padding: 0 21px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 750;
    text-decoration: none;
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease,
        background 0.2s ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button.primary {
    background: var(--accent);
    color: white;
    box-shadow: 0 12px 26px rgba(23, 111, 140, 0.18);
}

.button.primary:hover {
    background: var(--accent-dark);
}

.button.secondary {
    background: white;
    border: 1px solid #ccd6de;
    color: var(--ink);
}

.hero-panel {
    position: relative;
    padding: 30px;
    border: 1px solid #d8e0e7;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.94);
    box-shadow: var(--shadow);
}

.panel-label {
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
    color: var(--ink-soft);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.17em;
}

.process-line {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: 14px;
    align-items: center;
    min-height: 76px;
    border-bottom: 1px solid #e5eaee;
}

.process-line > span {
    color: var(--accent);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.08em;
}

.process-line strong,
.process-line small {
    display: block;
}

.process-line strong {
    font-size: 15px;
    letter-spacing: 0.06em;
}

.process-line small {
    margin-top: 2px;
    color: var(--ink-soft);
    font-size: 13px;
}

.process-line.final-line {
    border-bottom: 0;
}

.process-line.final-line strong {
    color: var(--success);
}


/* =========================================================
   SIGNIFICANCE
========================================================= */

.significance {
    background: var(--surface);
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.value-card {
    min-height: 250px;
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--surface);
}

.card-number {
    margin-bottom: 45px;
    color: var(--accent);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.16em;
}

.value-card p {
    margin-bottom: 0;
    font-size: 15px;
}


/* =========================================================
   DARK SECTIONS
========================================================= */

.dark-section {
    background: var(--dark);
    color: white;
}

.dark-section .eyebrow {
    color: #75bfd4;
}

.dark-section h2 {
    color: white;
}

.dark-section p {
    color: #b8c4cd;
}

.split {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 90px;
    align-items: start;
}

.large-copy {
    font-size: 18px;
    line-height: 1.8;
}

.large-copy p {
    margin-bottom: 24px;
}

.large-copy strong {
    color: inherit;
}


/* =========================================================
   WORKFLOW
========================================================= */

.workflow {
    border-top: 1px solid var(--line);
}

.workflow-step {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 30px;
    padding: 38px 0;
    border-bottom: 1px solid var(--line);
}

.step-number {
    color: var(--accent);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.1em;
}

.workflow-step h3 {
    font-size: 27px;
}

.workflow-step p {
    max-width: 790px;
    margin-bottom: 0;
    font-size: 16px;
}

.formats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    max-width: 760px;
    margin-top: 28px;
}

.formats > div {
    padding: 19px;
    border: 1px solid #d6dee5;
    border-radius: 11px;
    background: white;
}

.formats strong,
.formats span {
    display: block;
}

.formats strong {
    color: var(--accent);
    font-size: 17px;
    letter-spacing: 0.08em;
}

.formats span {
    margin-top: 4px;
    color: var(--ink-soft);
    font-size: 13px;
}

.verified-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
    justify-content: center;
    margin-top: 48px;
    padding: 21px 24px;
    border-radius: 12px;
    background: var(--dark);
    color: #94a5b1;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.11em;
}

.verified-bar span {
    color: #4a5b66;
}

.verified-bar strong {
    color: #7fd0b1;
}


/* =========================================================
   DOMAINS
========================================================= */

.soft-section {
    background: var(--surface-soft);
}

.domain-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    border-top: 1px solid #cfd8df;
    border-left: 1px solid #cfd8df;
}

.domain-grid article {
    min-height: 250px;
    padding: 36px;
    border-right: 1px solid #cfd8df;
    border-bottom: 1px solid #cfd8df;
    background: rgba(255, 255, 255, 0.35);
}

.domain-grid article > span {
    display: inline-block;
    margin-bottom: 38px;
    color: var(--accent);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.15em;
}

.domain-grid p {
    max-width: 450px;
    margin-bottom: 0;
}


/* =========================================================
   BUSINESS MODEL
========================================================= */

.text-link {
    display: inline-block;
    margin-top: 6px;
    color: var(--accent);
    font-size: 15px;
    font-weight: 750;
    text-decoration: none;
}

.text-link:hover {
    text-decoration: underline;
}


/* =========================================================
   VALIDATION
========================================================= */

.validation-section {
    background: #e9eef2;
}

.validation-box {
    padding: 60px;
    border: 1px solid #d0d8de;
    border-radius: var(--radius);
    background: white;
    box-shadow: var(--shadow);
}

.validation-box > p {
    max-width: 850px;
    font-size: 17px;
}

.benchmark-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    margin: 40px 0;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--line);
}

.benchmark-grid > div {
    min-height: 145px;
    padding: 25px;
    background: #f9fbfc;
}

.benchmark-grid strong,
.benchmark-grid span {
    display: block;
}

.benchmark-grid strong {
    color: var(--dark);
    font-size: 24px;
    letter-spacing: -0.02em;
}

.benchmark-grid span {
    margin-top: 9px;
    color: var(--ink-soft);
    font-size: 13px;
    line-height: 1.45;
}

.validation-note {
    margin-bottom: 0;
    padding-top: 25px;
    border-top: 1px solid var(--line);
    font-size: 14px !important;
}


/* =========================================================
   CONTACT
========================================================= */

.contact-section {
    background: var(--surface);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 80px;
    align-items: center;
}

.contact-grid > div:first-child p {
    max-width: 620px;
    font-size: 18px;
}

.contact-card {
    padding: 36px;
    border-radius: var(--radius);
    background: var(--dark);
    color: white;
    box-shadow: var(--shadow);
}

.contact-card > span {
    display: block;
    margin-bottom: 42px;
    color: #7ebed1;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.17em;
}

.contact-card strong {
    display: block;
    font-size: 28px;
}

.contact-card p {
    margin: 3px 0 28px;
    color: #aebbc5;
}

.contact-card a {
    display: inline-block;
    margin-bottom: 34px;
    color: white;
    font-size: 19px;
    font-weight: 700;
    text-decoration: none;
    border-bottom: 1px solid #50636f;
}

.contact-card a:hover {
    border-color: white;
}

.contact-card small {
    display: block;
    color: #8d9da8;
    font-size: 12px;
    line-height: 1.6;
}


/* =========================================================
   FOOTER
========================================================= */

footer {
    padding: 52px 0;
    border-top: 1px solid #d7dee4;
    background: #eef2f5;
}

.footer-wrap {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 30px;
    align-items: start;
}

.footer-wrap > div:first-child strong {
    letter-spacing: 0.14em;
}

.footer-wrap > div:first-child p {
    max-width: 420px;
    margin: 8px 0 0;
    font-size: 13px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: flex-end;
}

.footer-links a {
    color: #46535e;
    font-size: 13px;
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--accent);
}

.copyright {
    grid-column: 1 / -1;
    padding-top: 24px;
    border-top: 1px solid #d5dde3;
    color: #73808b;
    font-size: 12px;
}


/* =========================================================
   RESPONSIVE
========================================================= */

@media (max-width: 980px) {

    nav a:not(.nav-contact) {
        display: none;
    }

    .hero {
        padding-top: 85px;
    }

    .hero-grid,
    .split,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .hero-panel {
        max-width: 600px;
    }

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

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


@media (max-width: 680px) {

    .container {
        width: min(calc(100% - 28px), var(--max-width));
    }

    .section {
        padding: 78px 0;
    }

    .nav-wrap {
        min-height: 68px;
    }

    .brand-mark {
        width: 38px;
        height: 38px;
    }

    .nav-contact {
        padding: 8px 12px;
        font-size: 12px;
    }

    h1 {
        font-size: 43px;
    }

    h2 {
        font-size: 34px;
    }

    .hero {
        padding: 76px 0;
    }

    .hero-lead {
        font-size: 18px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .button {
        width: 100%;
    }

    .value-grid,
    .domain-grid,
    .formats,
    .benchmark-grid {
        grid-template-columns: 1fr;
    }

    .domain-grid {
        border-left: 0;
    }

    .domain-grid article {
        border-left: 1px solid #cfd8df;
    }

    .workflow-step {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .step-number {
        margin-bottom: 3px;
    }

    .verified-bar {
        justify-content: flex-start;
    }

    .validation-box {
        padding: 30px 22px;
    }

    .footer-wrap {
        grid-template-columns: 1fr;
    }

    .footer-links {
        justify-content: flex-start;
    }

    .copyright {
        grid-column: 1;
    }
}