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

:root {
    --primary: #181d26;
    --primary-active: #0d1218;
    --canvas: #ffffff;
    --surface-soft: #f8fafc;
    --surface-strong: #e0e2e6;
    --surface-dark: #181d26;
    --hairline: #dddddd;
    --ink: #181d26;
    --body: #333840;
    --muted: #41454d;
    --on-primary: #ffffff;
    --link: #1b61c9;
    --link-active: #1a3866;
    --sig-coral: #aa2d00;
    --sig-forest: #0a2e0e;
    --sig-cream: #f5e9d4;
    --sig-peach: #fcab79;
    --sig-mint: #a8d8c4;
    --rounded-xs: 2px;
    --rounded-sm: 6px;
    --rounded-md: 10px;
    --rounded-lg: 12px;
    --section: 96px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.25;
    color: var(--body);
    background: var(--canvas);
}

a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-active); }
img { max-width: 100%; height: auto; display: block; }

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 48px;
}

/* TOP NAV */
.top-nav {
    height: 64px;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    position: sticky;
    top: 0;
    z-index: 100;
}
.top-nav .container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-brand {
    font-size: 18px;
    font-weight: 500;
    color: var(--ink);
    text-decoration: none;
    letter-spacing: -0.01em;
}
.nav-brand:hover { color: var(--ink); }
.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}
.nav-links a {
    font-size: 14px;
    font-weight: 400;
    color: var(--body);
    text-decoration: none;
}
.nav-links a:hover { color: var(--ink); }
.nav-right {
    display: flex;
    align-items: center;
    gap: 16px;
}
.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 8px;
}
.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: all 0.2s;
}
.nav-mobile-sheet {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--canvas);
    z-index: 200;
    flex-direction: column;
    padding: 24px 48px;
    overflow-y: auto;
}
.nav-mobile-sheet.open { display: flex; }
.nav-mobile-close {
    align-self: flex-end;
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--ink);
    margin-bottom: 24px;
}
.nav-mobile-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.nav-mobile-links a {
    font-size: 20px;
    font-weight: 400;
    color: var(--ink);
    text-decoration: none;
}

/* BUTTONS */
.btn-primary {
    display: inline-block;
    background: var(--primary);
    color: var(--on-primary);
    font-size: 16px;
    font-weight: 500;
    line-height: 1.4;
    padding: 16px 24px;
    border-radius: var(--rounded-lg);
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: background 0.15s;
}
.btn-primary:active, .btn-primary:hover { background: var(--primary-active); color: var(--on-primary); }
.btn-secondary {
    display: inline-block;
    background: var(--canvas);
    color: var(--ink);
    font-size: 16px;
    font-weight: 500;
    line-height: 1.4;
    padding: 16px 24px;
    border-radius: var(--rounded-lg);
    text-decoration: none;
    border: 1px solid var(--hairline);
    cursor: pointer;
    transition: border-color 0.15s;
}
.btn-secondary:hover { color: var(--ink); border-color: #aaa; }
.btn-secondary-on-dark {
    display: inline-block;
    background: var(--canvas);
    color: var(--ink);
    font-size: 16px;
    font-weight: 500;
    padding: 16px 24px;
    border-radius: var(--rounded-lg);
    text-decoration: none;
    border: none;
}
.btn-legal {
    display: inline-block;
    background: var(--link);
    color: var(--on-primary);
    font-size: 13.12px;
    font-weight: 600;
    padding: 12px 10px;
    border-radius: var(--rounded-xs);
    border: none;
    cursor: pointer;
}
.btn-legal:hover { background: var(--link-active); color: var(--on-primary); }

/* HERO */
.hero-band {
    padding: var(--section) 0;
    background: var(--canvas);
}
.hero-band h1 {
    font-size: 40px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--ink);
    max-width: 660px;
    margin-bottom: 20px;
}
.hero-band p {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--body);
    max-width: 560px;
    margin-bottom: 32px;
}
.hero-btn-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* SECTION HEADINGS */
.section-title {
    font-size: 24px;
    font-weight: 400;
    line-height: 1.35;
    letter-spacing: 0.12px;
    color: var(--ink);
    margin-bottom: 8px;
}
.section-sub {
    font-size: 14px;
    color: var(--body);
    margin-bottom: 40px;
    max-width: 640px;
}

/* EDITORIAL BAND */
.band {
    padding: var(--section) 0;
}
.band-soft { background: var(--surface-soft); }
.band-strong { background: var(--surface-strong); }
.band-cream { background: var(--sig-cream); }
.band-dark {
    background: var(--surface-dark);
    color: var(--on-primary);
}
.band-dark h2, .band-dark p, .band-dark .section-sub { color: var(--on-primary); }
.band-coral {
    background: var(--sig-coral);
    color: var(--on-primary);
}
.band-coral h2, .band-coral p, .band-coral .section-sub { color: var(--on-primary); }

/* SIGNATURE CARDS */
.sig-card {
    border-radius: var(--rounded-lg);
    padding: 48px;
}
.sig-card h2 {
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: 16px;
    color: var(--on-primary);
}
.sig-card p {
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 28px;
    color: var(--on-primary);
}
.sig-card-coral { background: var(--sig-coral); }
.sig-card-forest { background: var(--sig-forest); }
.sig-card-dark { background: var(--surface-dark); }

/* ARTICLE CARDS */
.article-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.article-card {
    background: var(--canvas);
    border-radius: var(--rounded-md);
    border: 1px solid var(--hairline);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    transition: border-color 0.15s;
}
.article-card:hover { border-color: #aaa; color: inherit; }
.article-card-img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
}
.article-card-body {
    padding: 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.article-card-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
}
.article-card-title {
    font-size: 18px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--ink);
    margin-bottom: 10px;
}
.article-card-meta {
    font-size: 13px;
    color: var(--muted);
    margin-top: auto;
}
.article-card-excerpt {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 12px;
}

/* DEMO GRID CARDS */
.demo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.demo-card {
    border-radius: var(--rounded-md);
    padding: 24px;
    min-height: 180px;
}
.demo-card h3 {
    font-size: 16px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 8px;
}
.demo-card p { font-size: 14px; line-height: 1.5; color: var(--body); }
.demo-card-peach { background: var(--sig-peach); }
.demo-card-mint { background: var(--sig-mint); }
.demo-card-cream { background: var(--sig-cream); }

/* CONTENT LAYOUT */
.content-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}
.content-two-col img {
    border-radius: var(--rounded-md);
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
}
.content-two-col h2 {
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--ink);
    margin-bottom: 16px;
}
.content-two-col p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--body);
    margin-bottom: 16px;
}
.content-two-col a { font-size: 14px; }

/* CTA BAND */
.cta-band {
    background: var(--surface-strong);
    border-radius: var(--rounded-lg);
    padding: 48px;
    text-align: center;
}
.cta-band h2 {
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--ink);
    margin-bottom: 16px;
}
.cta-band p {
    font-size: 14px;
    color: var(--body);
    margin-bottom: 28px;
}

/* FORM */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 480px;
}
.form-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.form-row label {
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
}
.form-row input, .form-row textarea {
    background: var(--canvas);
    color: var(--ink);
    font-size: 14px;
    font-weight: 400;
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-sm);
    padding: 12px 16px;
    height: 44px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.15s;
}
.form-row input:focus, .form-row textarea:focus {
    border-color: #458fff;
}
.form-row textarea { height: 120px; resize: vertical; }

/* ARTICLE CONTENT */
.article-hero {
    padding: var(--section) 0 48px;
    background: var(--canvas);
}
.article-hero h1 {
    font-size: 40px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--ink);
    max-width: 800px;
    margin-bottom: 16px;
}
.article-meta {
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 32px;
}
.article-featured-img {
    width: 100%;
    max-height: 480px;
    object-fit: cover;
    border-radius: var(--rounded-md);
    margin-bottom: 48px;
}
.article-body {
    max-width: 740px;
}
.article-body h2 {
    font-size: 24px;
    font-weight: 400;
    line-height: 1.35;
    color: var(--ink);
    margin: 40px 0 12px;
}
.article-body h3 {
    font-size: 18px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--ink);
    margin: 28px 0 10px;
}
.article-body p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--body);
    margin-bottom: 18px;
}
.article-body ul, .article-body ol {
    padding-left: 24px;
    margin-bottom: 18px;
}
.article-body li {
    font-size: 14px;
    line-height: 1.7;
    color: var(--body);
    margin-bottom: 6px;
}
.article-body a { color: var(--link); }
.article-body a:hover { color: var(--link-active); }
.article-body img {
    border-radius: var(--rounded-md);
    margin: 28px 0;
    width: 100%;
    max-height: 400px;
    object-fit: cover;
}
.article-layout {
    display: grid;
    grid-template-columns: 740px 1fr;
    gap: 64px;
    align-items: start;
}
.article-sidebar {
    position: sticky;
    top: 80px;
}
.sidebar-card {
    background: var(--surface-soft);
    border-radius: var(--rounded-md);
    padding: 24px;
    margin-bottom: 24px;
}
.sidebar-card h4 {
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 12px;
}
.sidebar-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.sidebar-card ul a {
    font-size: 14px;
    color: var(--link);
}

/* FOOTER */
.site-footer {
    background: var(--canvas);
    border-top: 1px solid var(--hairline);
    padding: var(--section) 0 48px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 32px;
    margin-bottom: 48px;
}
.footer-brand p {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.6;
    margin-top: 12px;
    max-width: 280px;
}
.footer-col h5 {
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 12px;
}
.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.footer-col ul a {
    font-size: 14px;
    color: var(--muted);
}
.footer-col ul a:hover { color: var(--ink); }
.footer-bottom {
    border-top: 1px solid var(--hairline);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.footer-bottom p {
    font-size: 14px;
    color: var(--muted);
}
.footer-bottom-links {
    display: flex;
    gap: 20px;
    list-style: none;
}
.footer-bottom-links a {
    font-size: 14px;
    color: var(--muted);
}
.footer-bottom-links a:hover { color: var(--ink); }

/* PAGE CONTENT */
.page-hero {
    padding: var(--section) 0 48px;
    background: var(--canvas);
}
.page-hero h1 {
    font-size: 40px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--ink);
    max-width: 700px;
    margin-bottom: 16px;
}
.page-hero p {
    font-size: 16px;
    color: var(--body);
    max-width: 560px;
}
.page-body {
    padding: 0 0 var(--section);
}
.page-content {
    max-width: 760px;
}
.page-content h2 {
    font-size: 24px;
    font-weight: 400;
    color: var(--ink);
    margin: 40px 0 12px;
}
.page-content h3 {
    font-size: 18px;
    font-weight: 500;
    color: var(--ink);
    margin: 28px 0 10px;
}
.page-content p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--body);
    margin-bottom: 16px;
}
.page-content ul, .page-content ol {
    padding-left: 24px;
    margin-bottom: 16px;
}
.page-content li {
    font-size: 14px;
    line-height: 1.7;
    color: var(--body);
    margin-bottom: 6px;
}
.page-content a { color: var(--link); }

/* COOKIE BANNER */
.cookie-banner {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--surface-dark);
    color: var(--on-primary);
    padding: 20px 48px;
    z-index: 999;
    border-top: 1px solid #333;
}
.cookie-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}
.cookie-inner p {
    font-size: 13px;
    line-height: 1.5;
    color: var(--on-primary);
    max-width: 700px;
}
.cookie-inner a { color: #7ab4ff; }
.cookie-btns {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}
.cookie-btns button {
    font-size: 13.12px;
    font-weight: 600;
    padding: 12px 10px;
    border-radius: var(--rounded-xs);
    border: none;
    cursor: pointer;
}
.btn-accept { background: var(--link); color: var(--on-primary); }
.btn-reject { background: transparent; color: var(--on-primary); border: 1px solid #666 !important; }

/* BREADCRUMB */
.breadcrumb {
    font-size: 13px;
    color: var(--muted);
    padding: 16px 0 0;
    display: flex;
    gap: 6px;
    align-items: center;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--link); }
.breadcrumb-sep { color: var(--hairline); }

/* RESPONSIVE */
@media (max-width: 1024px) {
    .article-layout { grid-template-columns: 1fr; }
    .article-sidebar { position: static; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .demo-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .container { padding: 0 24px; }
    .nav-links, .nav-right { display: none; }
    .nav-hamburger { display: flex; }
    .hero-band h1, .article-hero h1, .page-hero h1 { font-size: 28px; }
    .article-grid { grid-template-columns: 1fr; }
    .content-two-col { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .demo-grid { grid-template-columns: 1fr; }
    .sig-card { padding: 32px 24px; }
    .cookie-banner { padding: 20px 24px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .cta-band { padding: 32px 24px; }
    .band { padding: 64px 0; }
    :root { --section: 64px; }
}