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

:root {
    --color-primary:        #181d26;
    --color-primary-active: #0d1218;
    --color-canvas:         #ffffff;
    --color-surface-soft:   #f8fafc;
    --color-surface-strong: #e0e2e6;
    --color-surface-dark:   #181d26;
    --color-hairline:       #dddddd;
    --color-ink:            #181d26;
    --color-body:           #333840;
    --color-muted:          #41454d;
    --color-on-primary:     #ffffff;
    --color-link:           #1b61c9;
    --color-coral:          #aa2d00;
    --color-forest:         #0a2e0e;
    --color-cream:          #f5e9d4;
    --color-peach:          #fcab79;
    --color-mint:           #a8d8c4;

    --rounded-xs:   2px;
    --rounded-sm:   6px;
    --rounded-md:   10px;
    --rounded-lg:   12px;

    --spacing-xxs:     4px;
    --spacing-xs:      8px;
    --spacing-sm:      12px;
    --spacing-md:      16px;
    --spacing-lg:      24px;
    --spacing-xl:      32px;
    --spacing-xxl:     48px;
    --spacing-section: 96px;

    --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    --font-display: 'Inter Display', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
}

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

body {
    font-family: var(--font-base);
    font-size: 14px;
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-body);
    background: var(--color-canvas);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-link);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

ul, ol {
    list-style: none;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-xxl);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

.site-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
    height: 64px;
}

.nav-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-xxl);
    height: 100%;
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 500;
    color: var(--color-ink);
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    flex: 1;
}

.nav-menu a {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-body);
    text-decoration: none;
}

.nav-menu a[aria-current="page"] {
    color: var(--color-ink);
    font-weight: 500;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    flex-direction: column;
    gap: 5px;
    margin-left: auto;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-ink);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

@media (max-width: 768px) {
    .nav-inner {
        padding: 0 var(--spacing-md);
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: fixed;
        inset: 0;
        background: var(--color-canvas);
        flex-direction: column;
        align-items: flex-start;
        padding: 80px var(--spacing-xl) var(--spacing-xl);
        gap: var(--spacing-xl);
    }

    .nav-menu.is-open {
        display: flex;
    }

    .nav-menu a {
        font-size: 20px;
    }
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: var(--color-on-primary);
    font-size: 16px;
    font-weight: 500;
    padding: 16px 24px;
    border-radius: var(--rounded-lg);
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-primary:active {
    background: var(--color-primary-active);
    text-decoration: none;
}

.btn-primary:hover {
    text-decoration: none;
    background: var(--color-primary-active);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-canvas);
    color: var(--color-ink);
    font-size: 16px;
    font-weight: 500;
    padding: 16px 24px;
    border-radius: var(--rounded-lg);
    text-decoration: none;
    border: 1px solid var(--color-hairline);
    cursor: pointer;
}

.btn-secondary:hover {
    text-decoration: none;
}

.btn-legal {
    background: var(--color-link);
    color: var(--color-on-primary);
    font-size: 13px;
    font-weight: 600;
    padding: 12px 10px;
    border-radius: var(--rounded-xs);
    border: none;
    cursor: pointer;
}

.btn-legal--outline {
    background: transparent;
    color: var(--color-link);
    border: 1px solid var(--color-link);
}

.hero-band {
    padding: var(--spacing-section) 0;
    background: var(--color-canvas);
}

.hero-band .container {
    max-width: 800px;
}

.hero-band h1 {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    margin-bottom: var(--spacing-lg);
}

.hero-band p {
    font-size: 18px;
    line-height: 1.6;
    color: var(--color-body);
    margin-bottom: var(--spacing-xl);
    max-width: 640px;
}

.hero-meta {
    font-size: 13px;
    color: var(--color-muted);
    margin-top: var(--spacing-sm);
}

@media (max-width: 768px) {
    .hero-band h1 {
        font-size: 28px;
    }
    .hero-band p {
        font-size: 16px;
    }
}

.signature-coral {
    background: var(--color-coral);
    color: var(--color-on-primary);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
    margin: 0 var(--spacing-xxl);
}

.signature-coral h2 {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-on-primary);
    margin-bottom: var(--spacing-lg);
}

.signature-coral p {
    font-size: 14px;
    color: rgba(255,255,255,0.85);
    margin-bottom: var(--spacing-xl);
    max-width: 520px;
}

.signature-forest {
    background: var(--color-forest);
    color: var(--color-on-primary);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
    margin: 0 var(--spacing-xxl);
}

.signature-forest h2 {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-on-primary);
    margin-bottom: var(--spacing-lg);
}

.signature-forest p {
    font-size: 14px;
    color: rgba(255,255,255,0.85);
    margin-bottom: var(--spacing-xl);
    max-width: 520px;
}

@media (max-width: 768px) {
    .signature-coral,
    .signature-forest {
        margin: 0 var(--spacing-md);
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .signature-coral h2,
    .signature-forest h2 {
        font-size: 24px;
    }
}

.section-white {
    padding: var(--spacing-section) 0;
    background: var(--color-canvas);
}

.section-soft {
    padding: var(--spacing-section) 0;
    background: var(--color-surface-soft);
}

.section-cream {
    padding: var(--spacing-section) 0;
    background: var(--color-cream);
}

.section-dark {
    padding: var(--spacing-section) 0;
    background: var(--color-surface-dark);
    color: var(--color-on-primary);
}

.section-dark h2 {
    color: var(--color-on-primary);
}

.section-dark p {
    color: rgba(255,255,255,0.8);
}

.section-title {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    margin-bottom: var(--spacing-sm);
}

.section-sub {
    font-size: 16px;
    color: var(--color-body);
    margin-bottom: var(--spacing-xl);
    max-width: 560px;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

@media (max-width: 1024px) {
    .article-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .article-grid {
        grid-template-columns: 1fr;
    }
}

.article-card {
    background: var(--color-canvas);
    border-radius: var(--rounded-md);
    overflow: hidden;
    border: 1px solid var(--color-hairline);
    display: flex;
    flex-direction: column;
}

.article-card-img {
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--color-surface-soft);
}

.article-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-card-body {
    padding: var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.article-card-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.article-card-title {
    font-size: 18px;
    font-weight: 500;
    color: var(--color-ink);
    line-height: 1.4;
}

.article-card-excerpt {
    font-size: 14px;
    color: var(--color-body);
    line-height: 1.5;
    flex: 1;
}

.article-card-meta {
    font-size: 13px;
    color: var(--color-muted);
    margin-top: var(--spacing-xs);
}

.article-card a {
    text-decoration: none;
    color: inherit;
}

.demo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    align-items: start;
}

@media (max-width: 1024px) {
    .demo-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .demo-grid {
        grid-template-columns: 1fr;
    }
}

.demo-card {
    border-radius: var(--rounded-md);
    padding: var(--spacing-md);
    background: var(--color-surface-soft);
}

.demo-card--peach  { background: var(--color-peach); }
.demo-card--mint   { background: var(--color-mint); }
.demo-card--cream  { background: var(--color-cream); }

.demo-card h3 {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
}

.demo-card p {
    font-size: 14px;
    color: var(--color-body);
    line-height: 1.5;
}

.cta-band {
    padding: var(--spacing-xxl) var(--spacing-xxl);
    background: var(--color-surface-strong);
    border-radius: var(--rounded-lg);
    margin: 0 var(--spacing-xxl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.cta-band h2 {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 400;
    color: var(--color-ink);
    line-height: 1.2;
    max-width: 480px;
}

@media (max-width: 768px) {
    .cta-band {
        flex-direction: column;
        align-items: flex-start;
        margin: 0 var(--spacing-md);
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .cta-band h2 {
        font-size: 22px;
    }
}

.contact-form {
    background: var(--color-surface-soft);
    border-radius: var(--rounded-md);
    padding: var(--spacing-xl);
    max-width: 520px;
}

.contact-form h3 {
    font-size: 20px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-ink);
}

.form-group input {
    height: 44px;
    border: 1px solid var(--color-hairline);
    border-radius: var(--rounded-sm);
    padding: 12px 16px;
    font-size: 14px;
    color: var(--color-ink);
    background: var(--color-canvas);
    font-family: var(--font-base);
    outline: none;
    transition: border-color 0.15s;
}

.form-group input:focus {
    border-color: #458fff;
}

.form-submit {
    margin-top: var(--spacing-md);
    width: 100%;
    justify-content: center;
}

.article-hero {
    width: 100%;
    aspect-ratio: 21/9;
    overflow: hidden;
    border-radius: var(--rounded-md);
    background: var(--color-surface-soft);
    margin-bottom: var(--spacing-xl);
}

.article-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-body {
    max-width: 740px;
    margin: 0 auto;
}

.article-body h1 {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    margin-bottom: var(--spacing-lg);
}

.article-body h2 {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 400;
    color: var(--color-ink);
    margin: var(--spacing-xl) 0 var(--spacing-md);
    line-height: 1.25;
}

.article-body h3 {
    font-size: 20px;
    font-weight: 500;
    color: var(--color-ink);
    margin: var(--spacing-lg) 0 var(--spacing-sm);
}

.article-body p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-body);
    margin-bottom: var(--spacing-md);
}

.article-body ul, .article-body ol {
    list-style: disc;
    padding-left: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.article-body li {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-body);
    margin-bottom: var(--spacing-xs);
}

.article-body a {
    color: var(--color-link);
}

.article-meta {
    font-size: 13px;
    color: var(--color-muted);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-hairline);
}

.article-img-block {
    margin: var(--spacing-xl) 0;
    border-radius: var(--rounded-md);
    overflow: hidden;
}

.article-img-block img {
    width: 100%;
}

.article-img-block figcaption {
    font-size: 12px;
    color: var(--color-muted);
    padding: var(--spacing-xs) 0;
}

.related-articles {
    padding: var(--spacing-section) 0;
    background: var(--color-surface-soft);
}

.page-header {
    padding: var(--spacing-section) 0 var(--spacing-xl);
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
}

.page-header h1 {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 400;
    color: var(--color-ink);
    line-height: 1.2;
}

.page-content {
    max-width: 740px;
    margin: 0 auto;
    padding: var(--spacing-section) var(--spacing-xxl);
}

.page-content h2 {
    font-size: 24px;
    font-weight: 500;
    color: var(--color-ink);
    margin: var(--spacing-xl) 0 var(--spacing-md);
}

.page-content p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-body);
    margin-bottom: var(--spacing-md);
}

.page-content ul {
    list-style: disc;
    padding-left: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.page-content li {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-body);
    margin-bottom: var(--spacing-xs);
}

@media (max-width: 768px) {
    .page-content {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .page-header h1 {
        font-size: 28px;
    }
}

.site-footer {
    background: var(--color-canvas);
    border-top: 1px solid var(--color-hairline);
    padding: var(--spacing-section) 0 var(--spacing-xl);
}

.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-xxl);
}

.footer-cols {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

@media (max-width: 768px) {
    .footer-cols {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .footer-inner {
        padding: 0 var(--spacing-md);
    }
}

.footer-brand {
    font-size: 18px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    font-size: 14px;
    color: var(--color-body);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

.footer-contact {
    font-size: 13px;
    color: var(--color-muted);
    line-height: 1.7;
}

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

.footer-col-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--spacing-sm);
}

.footer-col ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-col ul li a {
    font-size: 14px;
    color: var(--color-muted);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-hairline);
}

.footer-bottom p {
    font-size: 12px;
    color: var(--color-muted);
    line-height: 1.6;
    margin-bottom: var(--spacing-xs);
}

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

.footer-disclaimer {
    font-size: 11px;
    color: var(--color-muted);
    opacity: 0.8;
}

.cookie-banner {
    position: fixed;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--color-primary);
    color: var(--color-on-primary);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-lg) var(--spacing-xl);
    display: none;
    z-index: 999;
    box-shadow: 0 4px 24px rgba(0,0,0,0.18);
}

.cookie-banner.is-visible {
    display: block;
}

.cookie-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.cookie-inner p {
    font-size: 14px;
    color: rgba(255,255,255,0.9);
}

.cookie-inner a {
    color: rgba(255,255,255,0.9);
    text-decoration: underline;
}

.cookie-btns {
    display: flex;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

@media (max-width: 600px) {
    .cookie-banner {
        left: var(--spacing-md);
        right: var(--spacing-md);
        bottom: var(--spacing-md);
        padding: var(--spacing-md);
    }

    .cookie-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
}

.section-spacer {
    padding: var(--spacing-section) 0;
}

.text-muted {
    color: var(--color-muted);
}

.breadcrumb {
    font-size: 13px;
    color: var(--color-muted);
    margin-bottom: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.breadcrumb a {
    color: var(--color-muted);
}

.breadcrumb span {
    opacity: 0.5;
}