:root {
    --canvas: #f7f7f4;
    --canvas-soft: #fafaf7;
    --surface-card: #ffffff;
    --surface-strong: #e6e5e0;
    --primary: #f54e00;
    --primary-active: #d04200;
    --ink: #26251e;
    --body: #5a5852;
    --body-strong: #26251e;
    --muted: #807d72;
    --muted-soft: #a09c92;
    --on-primary: #ffffff;
    --hairline: #e6e5e0;
    --hairline-soft: #efeee8;
    --hairline-strong: #cfcdc4;
    --success: #1f8a65;
    --error: #cf2d56;
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-pill: 9999px;
    --spacing-xxs: 4px;
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-base: 16px;
    --spacing-md: 20px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    --spacing-section: 80px;
}

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

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

body {
    background: var(--canvas);
    color: var(--body);
    font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--ink); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

h1, h2, h3, h4 {
    color: var(--ink);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

h1 { font-size: 2.25rem; letter-spacing: -0.045em; }
h2 { font-size: 1.625rem; letter-spacing: -0.025em; }
h3 { font-size: 1.375rem; letter-spacing: -0.015em; }
h4 { font-size: 1.125rem; font-weight: 600; letter-spacing: 0; }

p { color: var(--body); font-size: 1rem; line-height: 1.5; }

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

.badge {
    display: inline-block;
    background: var(--surface-strong);
    color: var(--ink);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    border-radius: var(--radius-pill);
    padding: 4px 10px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    line-height: 1;
    border: none;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
    border-radius: var(--radius-md);
    padding: 10px 18px;
    height: 40px;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--on-primary);
}
.btn-primary:hover { background: var(--primary-active); color: var(--on-primary); }

.btn-secondary {
    background: var(--surface-card);
    color: var(--ink);
    border: 1px solid var(--hairline-strong);
}
.btn-secondary:hover { background: var(--surface-strong); color: var(--ink); }

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

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.site-logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.01em;
    flex-shrink: 0;
}
.site-logo:hover { color: var(--ink); }

.site-nav ul {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--muted);
    transition: color 0.15s;
}
.nav-link:hover, .nav-link--active { color: var(--ink); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

.hero {
    padding: var(--spacing-section) 0;
    border-bottom: 1px solid var(--hairline);
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.hero-label {
    margin-bottom: var(--spacing-base);
}

.hero-title {
    font-size: 3rem;
    font-weight: 400;
    letter-spacing: -0.045em;
    line-height: 1.1;
    color: var(--ink);
    margin-bottom: var(--spacing-lg);
}

.hero-lead {
    font-size: 1.0625rem;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
    max-width: 480px;
}

.hero-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
    aspect-ratio: 4/3;
}
.hero-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.section {
    padding: var(--spacing-section) 0;
    border-bottom: 1px solid var(--hairline);
}

.section-label {
    margin-bottom: var(--spacing-lg);
}

.section-title {
    margin-bottom: var(--spacing-lg);
}

.section-lead {
    max-width: 620px;
    margin-bottom: var(--spacing-xxl);
    font-size: 1.0625rem;
    line-height: 1.6;
}

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

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

.card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: border-color 0.15s;
}
.card:hover { border-color: var(--hairline-strong); }

.card-img {
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: var(--spacing-base);
    aspect-ratio: 16/9;
}
.card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-meta {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: var(--spacing-xs);
    display: flex;
    gap: var(--spacing-sm);
}

.card-title {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.01em;
    line-height: 1.35;
}

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

.card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}
.card-link:hover .card-title { color: var(--primary); }

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

.principle-item {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-lg);
}

.principle-num {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: var(--spacing-sm);
}

.principle-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: var(--spacing-xs);
}

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

.featured-section {
    padding: var(--spacing-section) 0;
    border-bottom: 1px solid var(--hairline);
}

.featured-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: start;
}

.featured-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
    aspect-ratio: 3/2;
}
.featured-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.featured-content { padding-top: var(--spacing-base); }
.featured-content .section-lead { margin-bottom: var(--spacing-xl); }

.article-wrap {
    max-width: 760px;
    margin: 0 auto;
    padding: var(--spacing-section) var(--spacing-xl);
}

.article-header { margin-bottom: var(--spacing-xxl); }
.article-header .badge { margin-bottom: var(--spacing-base); }

.article-title {
    font-size: 2.5rem;
    font-weight: 400;
    letter-spacing: -0.04em;
    line-height: 1.15;
    color: var(--ink);
    margin-bottom: var(--spacing-lg);
}

.article-lead {
    font-size: 1.125rem;
    color: var(--muted);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.article-meta {
    display: flex;
    gap: var(--spacing-base);
    font-size: 13px;
    color: var(--muted);
    border-top: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
    padding: var(--spacing-sm) 0;
}

.article-hero-img {
    margin: var(--spacing-xxl) 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
    aspect-ratio: 16/9;
}
.article-hero-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-body h2 {
    font-size: 1.5rem;
    margin-top: var(--spacing-xxl);
    margin-bottom: var(--spacing-base);
}

.article-body h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
}

.article-body p {
    margin-bottom: var(--spacing-base);
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--body);
}

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

.article-body li {
    margin-bottom: var(--spacing-xs);
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--body);
}

.article-body blockquote {
    border-left: 2px solid var(--primary);
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-base) var(--spacing-lg);
    background: var(--surface-card);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.article-body blockquote p {
    font-size: 1.0625rem;
    color: var(--ink);
    margin-bottom: 0;
    font-style: italic;
}

.info-box {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.info-box-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
}

.related-articles {
    border-top: 1px solid var(--hairline);
    padding-top: var(--spacing-xxl);
    margin-top: var(--spacing-xxl);
}

.page-wrap {
    max-width: 760px;
    margin: 0 auto;
    padding: var(--spacing-section) var(--spacing-xl);
}

.page-title {
    font-size: 2.25rem;
    font-weight: 400;
    letter-spacing: -0.035em;
    color: var(--ink);
    margin-bottom: var(--spacing-lg);
}

.page-lead {
    font-size: 1.0625rem;
    color: var(--muted);
    line-height: 1.6;
    margin-bottom: var(--spacing-xxl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--hairline);
}

.page-body h2 {
    font-size: 1.375rem;
    margin-top: var(--spacing-xxl);
    margin-bottom: var(--spacing-base);
}

.page-body h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
}

.page-body p {
    margin-bottom: var(--spacing-base);
    font-size: 1.0625rem;
    line-height: 1.7;
}

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

.page-body li {
    margin-bottom: var(--spacing-xs);
    font-size: 1.0625rem;
    line-height: 1.7;
}

.contact-form-wrap {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xxl);
    margin-top: var(--spacing-xxl);
}

.form-heading {
    font-size: 1.375rem;
    font-weight: 400;
    color: var(--ink);
    margin-bottom: var(--spacing-xs);
}

.form-subheading {
    font-size: 14px;
    color: var(--muted);
    margin-bottom: var(--spacing-xl);
}

.form-group { margin-bottom: var(--spacing-base); }

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--surface-card);
    color: var(--ink);
    font-family: inherit;
    font-size: 1rem;
    border: 1px solid var(--hairline-strong);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    height: 44px;
    transition: border-color 0.15s;
    outline: none;
}

.form-group textarea {
    height: auto;
    min-height: 100px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--ink);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--muted-soft);
}

.form-submit-btn {
    width: 100%;
    height: 44px;
    font-size: 15px;
    border-radius: var(--radius-md);
    background: var(--ink);
    color: var(--canvas);
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    transition: opacity 0.15s;
    margin-top: var(--spacing-xs);
}
.form-submit-btn:hover { opacity: 0.85; }
.form-submit-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.form-msg {
    display: none;
    margin-top: var(--spacing-base);
    padding: var(--spacing-base);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
}

.form-msg--success {
    background: #e8f5f0;
    color: var(--success);
    border: 1px solid #b3ddd0;
}

.site-footer {
    background: var(--canvas);
    border-top: 1px solid var(--hairline);
    padding: 64px 0 48px;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xxl);
}

.footer-brand {
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.5;
    max-width: 240px;
}

.footer-heading {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: var(--spacing-base);
}

.footer-col ul li { margin-bottom: var(--spacing-sm); }
.footer-col ul li a { font-size: 14px; color: var(--body); }
.footer-col ul li a:hover { color: var(--ink); }
.footer-body { font-size: 14px; color: var(--body); margin-bottom: var(--spacing-xs); }

.footer-bottom {
    border-top: 1px solid var(--hairline);
    margin-top: 48px;
    padding-top: var(--spacing-lg);
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--muted);
}

.cookie-banner {
    display: none;
    position: fixed;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--surface-card);
    border: 1px solid var(--hairline-strong);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    z-index: 1000;
    box-shadow: 0 2px 16px rgba(38,37,30,0.08);
    max-width: 580px;
}

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

.cookie-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-base);
}

.cookie-inner p {
    flex: 1;
    font-size: 14px;
    color: var(--body);
    min-width: 200px;
}

.cookie-inner p a { color: var(--ink); text-decoration: underline; }

.cookie-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.disclaimer {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
    padding: var(--spacing-base) var(--spacing-lg);
    font-size: 13px;
    color: var(--muted);
    line-height: 1.5;
    margin-top: var(--spacing-xl);
}

@media (max-width: 1024px) {
    .hero-inner { grid-template-columns: 1fr; gap: var(--spacing-xxl); }
    .hero-title { font-size: 2.5rem; }
    .hero-img { max-width: 600px; }
    .featured-inner { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr 1fr; gap: var(--spacing-xl); }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .site-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--canvas);
        border-bottom: 1px solid var(--hairline);
        padding: var(--spacing-base) var(--spacing-xl);
    }
    .site-nav.is-open { display: block; }
    .site-nav ul { flex-direction: column; gap: 0; }
    .site-nav ul li { border-bottom: 1px solid var(--hairline-soft); }
    .nav-link { display: block; padding: var(--spacing-sm) 0; }
    .header-inner { position: relative; }
    .card-grid { grid-template-columns: 1fr; }
    .card-grid--2 { grid-template-columns: 1fr; }
    .principles-grid { grid-template-columns: 1fr; }
    .hero { padding: var(--spacing-xxl) 0; }
    .hero-title { font-size: 2rem; }
    .section { padding: var(--spacing-xxl) 0; }
    .footer-inner { grid-template-columns: 1fr; gap: var(--spacing-xl); }
    .footer-bottom .container { flex-direction: column; gap: var(--spacing-xs); }
    .article-title { font-size: 1.875rem; }
    .article-wrap { padding: var(--spacing-xl) var(--spacing-base); }
    .page-wrap { padding: var(--spacing-xl) var(--spacing-base); }
    .contact-form-wrap { padding: var(--spacing-xl) var(--spacing-base); }
    .container { padding: 0 var(--spacing-base); }
}

@media (max-width: 640px) {
    .hero-title { font-size: 1.75rem; }
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.375rem; }
    .cookie-banner { left: var(--spacing-xs); right: var(--spacing-xs); bottom: var(--spacing-xs); }
}