:root {
    --bg: #f4f6f8;
    --surface: #ffffff;
    --surface-muted: #eef2f5;
    --text: #17202a;
    --text-soft: #3f4c5a;
    --line: #d7dee6;
    --accent: #0d3b66;
    --accent-soft: #eaf1f8;
    --radius: 16px;
    --shadow: 0 10px 30px rgba(10, 25, 40, 0.08);
}

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

html {
    scroll-behavior: smooth;
}

[id] {
    scroll-margin-top: 90px;
}

body {
    margin: 0;
    font-family: "Segoe UI", "Aptos", "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(180deg, #f8fafc 0%, var(--bg) 100%);
    color: var(--text);
    line-height: 1.65;
}

a {
    color: inherit;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.skip-link:focus {
    position: fixed;
    left: 1rem;
    top: 1rem;
    width: auto;
    height: auto;
    padding: 0.65rem 1rem;
    z-index: 1000;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
}

.container {
    width: min(1120px, calc(100% - 3rem));
    margin-inline: auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    border-bottom: 1px solid rgba(215, 222, 230, 0.7);
    backdrop-filter: blur(8px);
    background: rgba(248, 250, 252, 0.92);
}

.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 74px;
}

.brand {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.nav-list {
    list-style: none;
    display: flex;
    gap: 0.25rem;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.nav-list a {
    text-decoration: none;
    font-size: 0.87rem;
    color: #304152;
    border-radius: 999px;
    padding: 0.5rem 0.85rem;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-list a:hover,
.nav-list a:focus-visible {
    background: var(--surface-muted);
    color: var(--text);
}

.section {
    padding: 2rem 0;
}

.hero {
    padding-top: 6.5rem;
    padding-bottom: 4rem;
}

.hero-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.8fr);
    align-items: start;
}

.eyebrow {
    margin: 0 0 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.13em;
    font-size: 0.78rem;
    font-weight: 700;
    color: #4b5d70;
}

h1,
h2,
h3 {
    margin: 0;
    font-family: Georgia, "Times New Roman", serif;
    line-height: 1.2;
    color: #0f1722;
}

h1 {
    font-size: clamp(2rem, 2.8vw + 1rem, 3.55rem);
    max-width: 20ch;
}

h2 {
    font-size: clamp(1.6rem, 1.5vw + 1.1rem, 2.45rem);
    max-width: 30ch;
}

h3 {
    font-size: 1.2rem;
}

.lead {
    margin-top: 1.6rem;
    font-size: clamp(1rem, 0.35vw + 0.95rem, 1.2rem);
    color: var(--text-soft);
    max-width: 64ch;
}

.hero-card,
.card,
.stack-item,
.panel,
.timeline-item,
.cta-panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.hero-card {
    padding: 1.5rem;
}

.hero-card h2 {
    font-size: 1.2rem;
}

.hero-card ul {
    margin: 1rem 0 0;
    padding-left: 1.2rem;
    color: var(--text-soft);
}

.text-grid {
    margin-top: 1.5rem;
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.text-grid p {
    margin: 0;
    color: var(--text-soft);
}

.card-grid {
    margin-top: 1.8rem;
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
    padding: 1.45rem;
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.card:hover {
    transform: translateY(-2px);
    border-color: #b6c2cf;
    box-shadow: 0 12px 28px rgba(12, 34, 53, 0.1);
}

.card p,
.stack-item p,
.timeline-item p,
.panel p,
.cta-panel p {
    margin: 0.8rem 0 0;
    color: var(--text-soft);
}

.stack {
    margin-top: 1.8rem;
    display: grid;
    gap: 1rem;
}

.stack-item {
    padding: 1.4rem;
}

.note {
    margin-top: 1rem;
    font-size: 0.94rem;
    color: #53657a;
}

.panel {
    margin-top: 1.8rem;
    padding: 1.6rem;
}

.timeline {
    margin: 1.8rem 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 1rem;
}

.timeline-item {
    padding: 1.35rem;
}

.timeline-time {
    margin: 0;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #5d6f83;
}

.section-cta {
    padding-bottom: 6.5rem;
}

.cta-panel {
    padding: 1.8rem;
    background: linear-gradient(160deg, #ffffff 0%, #f0f4f8 100%);
}

.contact-list {
    margin-top: 1.3rem;
    display: grid;
    gap: 0.35rem;
}

.contact-list p {
    margin: 0;
}

.contact-list a {
    color: var(--accent);
}

.cta-row {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-top: 1.7rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0.58rem 1rem;
    border-radius: 999px;
    border: 1px solid transparent;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.92rem;
    transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

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

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background: #0b3356;
}

.btn-secondary {
    background: #fff;
    color: #203448;
    border-color: #bcc9d5;
}

.btn-secondary:hover {
    background: #f5f8fb;
}

.btn-ghost {
    background: transparent;
    border-color: #bcc9d5;
    color: #3a5064;
}

.btn-ghost:hover {
    background: #edf2f7;
}

.site-footer {
    border-top: 1px solid var(--line);
    background: #f4f7fa;
}

.footer-wrap {
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: #516273;
}

.footer-wrap p {
    margin: 0;
}

.footer-wrap a {
    text-decoration: none;
    color: #2e4559;
}

.reveal {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .reveal {
        transition: none;
    }
}

@media (max-width: 980px) {
    .nav-list {
        display: none;
    }

    .hero-grid,
    .text-grid,
    .card-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 5.4rem;
    }
}

@media (max-width: 640px) {
    .container {
        width: min(1120px, calc(100% - 1.4rem));
    }

    .section {
        padding: 4.4rem 0;
    }
}