:root {
    --bg: #ffffff;
    --fg: #111111;
    --muted: #5b6472;
    --soft: #f5f7fa;
    --line: #e4e8ee;
    --accent: #0b57d0;
    --accent-dark: #083f9a;
    --accent-contrast: #ffffff;
    --card: #ffffff;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f1115;
        --fg: #eef1f5;
        --muted: #a8b0bd;
        --soft: #151922;
        --line: #252b36;
        --accent: #8ab4f8;
        --accent-dark: #b8d3ff;
        --accent-contrast: #0f1115;
        --card: #121722;
    }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--fg);
    line-height: 1.6;
}

.wrapper {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}

header {
    border-bottom: 1px solid var(--line);
    background: var(--bg);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
    gap: 20px;
}

.brand {
    color: var(--fg);
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 750;
    letter-spacing: 0.02em;
}

.brand:hover { text-decoration: none; }

.nav nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 10px 18px;
}

.nav a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.95rem;
}

.nav a:hover {
    color: var(--fg);
    text-decoration: underline;
}

.nav a[aria-current="page"] {
    color: var(--fg);
    font-weight: 750;
    text-decoration: underline;
    text-underline-offset: 0.35em;
}

.nav a.nav-cta {
    padding: 8px 13px;
    border-radius: 999px;
    background: var(--accent);
    color: var(--accent-contrast);
    font-weight: 750;
    text-decoration: none;
}

.nav a.nav-cta:hover {
    background: var(--accent-dark);
    color: var(--accent-contrast);
    text-decoration: none;
}

.nav a.nav-cta[aria-current="page"] {
    color: var(--accent-contrast);
    text-decoration: none;
}

.hero {
    padding: 72px 0 58px;
    display: grid;
    grid-template-columns: 1.12fr 0.88fr;
    gap: 44px;
    align-items: center;
}

.page-home .hero {
    padding: 78px 0 64px;
    grid-template-columns: 1.15fr 0.85fr;
}

.eyebrow {
    color: var(--accent);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.78rem;
    margin-bottom: 14px;
}

h1 {
    font-size: clamp(2.3rem, 5vw, 4.3rem);
    line-height: 1.05;
    margin: 0 0 22px;
    letter-spacing: -0.045em;
}

.page-home h1 { font-size: clamp(2.3rem, 5vw, 4.6rem); }
.page-technical h1 { font-size: clamp(2.2rem, 5vw, 4.25rem); }

.lead {
    font-size: clamp(1.08rem, 2vw, 1.32rem);
    color: var(--muted);
    max-width: 720px;
    margin: 0 0 28px;
}

.page-home .lead { font-size: clamp(1.08rem, 2vw, 1.35rem); }
.page-technical .lead {
    font-size: clamp(1.05rem, 2vw, 1.3rem);
    max-width: 760px;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.actions-centered { justify-content: center; }

.button {
    display: inline-block;
    padding: 12px 18px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 700;
    border: 1px solid var(--line);
}

.button.primary {
    background: var(--accent);
    color: var(--accent-contrast);
    border-color: var(--accent);
}

.button.secondary {
    color: var(--fg);
    background: var(--soft);
}

.proof-card,
.principle-card,
.focus-card,
.arch-card,
.contact-card {
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 24px;
}

.proof-card h2,
.principle-card h2,
.focus-card h2,
.arch-card h2,
.contact-card h2 {
    margin-top: 0;
    font-size: 1.25rem;
}

.proof-list,
.principle-list,
.focus-list,
.arch-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.proof-list li,
.principle-list li,
.focus-list li,
.arch-list li {
    padding: 12px 0;
    border-top: 1px solid var(--line);
}

.proof-list li:first-child,
.principle-list li:first-child,
.focus-list li:first-child,
.arch-list li:first-child {
    border-top: 0;
}

section {
    padding: 58px 0;
    border-top: 1px solid var(--line);
}

.section-title {
    max-width: 760px;
    margin-bottom: 28px;
}

.page-technical .section-title { max-width: 820px; }

.section-title h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    line-height: 1.12;
    margin: 0 0 12px;
    letter-spacing: -0.03em;
}

.section-title p {
    color: var(--muted);
    font-size: 1.08rem;
    margin: 0;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 22px;
}

.card h3 {
    margin: 0 0 8px;
    font-size: 1.1rem;
}

.card p,
.card ul {
    margin: 0;
    color: var(--muted);
}

.card ul { padding-left: 1.1rem; }
.card li { margin: 0.25rem 0; }

.band {
    background: var(--soft);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
}

.statement {
    font-size: clamp(1.6rem, 3vw, 2.5rem);
    line-height: 1.18;
    letter-spacing: -0.03em;
    margin: 0;
}

.page-technical .statement {
    font-size: clamp(1.55rem, 3vw, 2.35rem);
}

.client-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.client-list span {
    border: 1px solid var(--line);
    background: var(--soft);
    border-radius: 999px;
    padding: 8px 12px;
    color: var(--muted);
    font-weight: 650;
    font-size: 0.94rem;
}

.quote {
    font-size: clamp(1.5rem, 3vw, 2.35rem);
    line-height: 1.22;
    letter-spacing: -0.03em;
    margin: 0;
}

.quote-source {
    color: var(--muted);
    margin-top: 14px;
}

.timeline {
    display: grid;
    gap: 14px;
}

.step {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 18px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 20px;
}

.step-number {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: var(--soft);
    border: 1px solid var(--line);
    color: var(--accent);
    font-weight: 800;
}

.step h3 {
    margin: 0 0 8px;
    font-size: 1.12rem;
}

.step p {
    margin: 0 0 10px;
    color: var(--muted);
}

.step p:last-child { margin-bottom: 0; }

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--card);
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}

th,
td {
    text-align: left;
    padding: 15px 18px;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}

th {
    font-size: 0.9rem;
    color: var(--muted);
    font-weight: 750;
}

tr:last-child td { border-bottom: 0; }

code {
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 0.08rem 0.35rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.92em;
}

.contact-item {
    padding: 13px 0;
    border-top: 1px solid var(--line);
}

.contact-item:first-of-type { border-top: 0; }

.contact-label {
    display: block;
    color: var(--muted);
    font-size: 0.9rem;
    margin-bottom: 2px;
}

.contact-value { font-weight: 700; }

.contact-value a {
    color: var(--fg);
    text-decoration: none;
}

.contact-value a:hover { text-decoration: underline; }

.cta {
    text-align: center;
    max-width: 820px;
    margin: 0 auto;
}

.cta h2 {
    font-size: clamp(2rem, 4vw, 3.4rem);
    line-height: 1.08;
    margin: 0 0 16px;
    letter-spacing: -0.04em;
}

.page-technical .cta h2 { font-size: clamp(2rem, 4vw, 3.2rem); }

.cta p {
    color: var(--muted);
    font-size: 1.1rem;
    margin: 0 auto 28px;
}

footer {
    border-top: 1px solid var(--line);
    padding: 28px 0;
    color: var(--muted);
    font-size: 0.95rem;
}

.footer-row {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
}

footer a { color: var(--muted); }

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
}

.footer-nav a { white-space: nowrap; }

@media (max-width: 820px) {
    .hero,
    .two-col,
    .grid {
        grid-template-columns: 1fr;
    }

    .hero { padding-top: 52px; }

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

    .nav nav {
        justify-content: flex-start;
        gap: 10px 14px;
    }

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

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--fg);
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 750;
    letter-spacing: 0.02em;
}

.brand-mark {
    display: block;
    width: 50px;
    height: 40px;
    object-fit: contain;
}

@media (prefers-color-scheme: dark) {
    .brand-mark {
        filter: invert(1);
    }
}