: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;
    --sp-xxs:  4px;
    --sp-xs:   8px;
    --sp-sm:   12px;
    --sp-base: 16px;
    --sp-md:   20px;
    --sp-lg:   24px;
    --sp-xl:   32px;
    --sp-xxl:  48px;
    --sp-section: 80px;
    --font-sans: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--canvas);
    color: var(--body);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
    color: var(--primary);
}

ul {
    list-style: none;
}

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

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

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--sp-xl);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    font-family: var(--font-sans);
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.3px;
}

.nav-brand-dot {
    color: var(--primary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--sp-xl);
}

.nav-menu li a {
    font-size: 14px;
    font-weight: 500;
    color: var(--body);
    line-height: 1.4;
    transition: color 0.15s;
}

.nav-menu li a:hover,
.nav-menu li a[aria-current="page"] {
    color: var(--ink);
}

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

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

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

.hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--sp-xl);
}

.hero-label {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    background-color: var(--surface-strong);
    border-radius: var(--radius-pill);
    padding: 4px 10px;
    margin-bottom: var(--sp-lg);
}

.hero-h1 {
    font-size: 72px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -2.16px;
    color: var(--ink);
    max-width: 800px;
    margin-bottom: var(--sp-lg);
}

.hero-lead {
    font-size: 18px;
    color: var(--body);
    line-height: 1.6;
    max-width: 560px;
    margin-bottom: var(--sp-xxl);
}

.hero-image-wrap {
    margin-top: var(--sp-xxl);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
    max-height: 480px;
}

.hero-image-wrap img {
    width: 100%;
    height: 480px;
    object-fit: cover;
}

.section-band {
    padding: var(--sp-section) 0;
}

.section-band--alt {
    background-color: var(--canvas-soft);
}

.section-band--white {
    background-color: var(--surface-card);
}

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

.section-h2 {
    font-size: 36px;
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.72px;
    color: var(--ink);
    margin-bottom: var(--sp-base);
}

.section-lead {
    font-size: 16px;
    color: var(--body);
    max-width: 560px;
    line-height: 1.5;
    margin-bottom: var(--sp-xxl);
}

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

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

.feature-card {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: var(--sp-lg);
    display: flex;
    flex-direction: column;
    gap: var(--sp-sm);
}

.feature-card__label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
}

.feature-card__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.4;
}

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

.feature-card__img {
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--sp-sm);
    aspect-ratio: 16/9;
}

.feature-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-card {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: border-color 0.15s;
}

.article-card:hover {
    border-color: var(--hairline-strong);
}

.article-card__img {
    aspect-ratio: 16/9;
    overflow: hidden;
}

.article-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.article-card:hover .article-card__img img {
    transform: scale(1.03);
}

.article-card__body {
    padding: var(--sp-lg);
    display: flex;
    flex-direction: column;
    gap: var(--sp-xs);
    flex: 1;
}

.article-card__tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--primary);
}

.article-card__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.4;
}

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

.article-card__meta {
    font-size: 13px;
    color: var(--muted);
    margin-top: var(--sp-sm);
}

.article-card__link {
    display: inline-block;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    margin-top: var(--sp-sm);
    border-bottom: 1px solid var(--hairline-strong);
    padding-bottom: 2px;
    transition: border-color 0.15s, color 0.15s;
}

.article-card__link:hover {
    color: var(--primary);
    border-color: var(--primary);
}

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

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

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

.btn-secondary:hover {
    border-color: var(--ink);
    color: var(--ink);
}

.article-page {
    max-width: 720px;
    margin: 0 auto;
    padding: var(--sp-section) var(--sp-xl);
}

.article-page__label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: var(--sp-sm);
}

.article-page__h1 {
    font-size: 36px;
    font-weight: 400;
    letter-spacing: -0.72px;
    line-height: 1.2;
    color: var(--ink);
    margin-bottom: var(--sp-base);
}

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

.article-page__hero {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--sp-xxl);
    border: 1px solid var(--hairline);
}

.article-page__hero img {
    width: 100%;
    height: 360px;
    object-fit: cover;
}

.article-page__content h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    line-height: 1.25;
    color: var(--ink);
    margin-top: var(--sp-xxl);
    margin-bottom: var(--sp-base);
}

.article-page__content h3 {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--ink);
    margin-top: var(--sp-xl);
    margin-bottom: var(--sp-sm);
}

.article-page__content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: var(--sp-base);
}

.article-page__content ul,
.article-page__content ol {
    margin-bottom: var(--sp-base);
    padding-left: var(--sp-lg);
}

.article-page__content ul {
    list-style: disc;
}

.article-page__content ol {
    list-style: decimal;
}

.article-page__content li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: var(--sp-xs);
}

.article-page__content a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.article-page__content a:hover {
    color: var(--primary-active);
}

.info-box {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius-md);
    padding: var(--sp-base) var(--sp-lg);
    margin: var(--sp-xl) 0;
}

.info-box p {
    margin-bottom: 0 !important;
    font-size: 14px !important;
    color: var(--body-strong) !important;
}

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

.related-articles h3 {
    font-size: 22px;
    font-weight: 400;
    letter-spacing: -0.11px;
    color: var(--ink);
    margin-bottom: var(--sp-lg);
}

.related-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-base);
}

.related-item {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
    padding: var(--sp-base);
}

.related-item a {
    font-size: 15px;
    font-weight: 500;
    color: var(--ink);
}

.related-item a:hover {
    color: var(--primary);
}

.related-item p {
    font-size: 13px;
    color: var(--muted);
    margin-top: var(--sp-xxs);
}

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

.page-inner h1 {
    font-size: 36px;
    font-weight: 400;
    letter-spacing: -0.72px;
    color: var(--ink);
    margin-bottom: var(--sp-xxl);
}

.page-inner h2 {
    font-size: 22px;
    font-weight: 400;
    letter-spacing: -0.11px;
    color: var(--ink);
    margin-top: var(--sp-xxl);
    margin-bottom: var(--sp-sm);
}

.page-inner p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: var(--sp-base);
}

.page-inner ul {
    list-style: disc;
    padding-left: var(--sp-lg);
    margin-bottom: var(--sp-base);
}

.page-inner li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: var(--sp-xs);
}

.page-inner a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.contact-section {
    margin-top: var(--sp-xxl);
    padding-top: var(--sp-xl);
    border-top: 1px solid var(--hairline);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-xxl);
    margin-top: var(--sp-xl);
}

.contact-info h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: var(--sp-base);
}

.contact-info p {
    font-size: 15px;
    color: var(--body);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--sp-base);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--sp-xxs);
}

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

.form-group input,
.form-group textarea {
    background-color: var(--surface-card);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 15px;
    padding: 12px 16px;
    height: 44px;
    border-radius: var(--radius-md);
    border: 1px solid var(--hairline-strong);
    outline: none;
    transition: border-color 0.15s;
    width: 100%;
}

.form-group textarea {
    height: auto;
    min-height: 120px;
    resize: vertical;
}

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

.form-message {
    font-size: 14px;
    color: var(--success);
    display: none;
    padding: var(--sp-sm);
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
}

.form-message.visible {
    display: block;
}

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

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: var(--sp-xxl);
}

.footer-brand {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.3px;
    display: inline-block;
    margin-bottom: var(--sp-sm);
}

.footer-brand span {
    color: var(--primary);
}

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

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

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: var(--sp-xs);
}

.footer-col ul a {
    font-size: 14px;
    color: var(--body);
    transition: color 0.15s;
}

.footer-col ul a:hover {
    color: var(--ink);
}

.footer-bottom {
    max-width: 1200px;
    margin: var(--sp-xxl) auto 0;
    padding-top: var(--sp-lg);
    border-top: 1px solid var(--hairline);
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--muted);
}

.cookie-banner {
    display: none;
    position: fixed;
    bottom: var(--sp-xl);
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--ink);
    color: var(--canvas);
    border-radius: var(--radius-lg);
    padding: var(--sp-lg) var(--sp-xl);
    max-width: 560px;
    width: calc(100% - var(--sp-xxl));
    z-index: 1000;
    box-shadow: 0 4px 24px rgba(38,37,30,0.18);
}

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

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

.cookie-banner p {
    font-size: 14px;
    color: var(--canvas-soft);
    line-height: 1.5;
}

.cookie-banner a {
    color: var(--canvas);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.cookie-actions {
    display: flex;
    gap: var(--sp-xs);
    flex-shrink: 0;
}

.cookie-actions .btn-primary {
    background-color: var(--primary);
    color: var(--on-primary);
}

.cookie-actions .btn-secondary {
    background-color: transparent;
    color: var(--canvas-soft);
    border-color: rgba(255,255,255,0.3);
}

.cookie-actions .btn-secondary:hover {
    border-color: var(--canvas-soft);
    color: var(--canvas);
}

@media (max-width: 1024px) {
    .hero-h1 { font-size: 56px; letter-spacing: -1.5px; }
    .cards-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr 1fr 1fr; }
    .footer-col--brand { grid-column: 1 / -1; }
    .footer-col--resources { display: none; }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background-color: var(--canvas);
        border-bottom: 1px solid var(--hairline);
        flex-direction: column;
        padding: var(--sp-base) var(--sp-xl);
        gap: var(--sp-base);
    }
    .nav-menu.open { display: flex; }
    .nav-toggle { display: flex; }
    .site-nav { position: relative; }
    .hero-h1 { font-size: 40px; letter-spacing: -1px; }
    .hero-lead { font-size: 16px; }
    .section-h2 { font-size: 28px; }
    .cards-grid { grid-template-columns: 1fr; }
    .cards-grid--2col { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .footer-col--brand { grid-column: 1 / -1; }
    .footer-bottom { flex-direction: column; gap: var(--sp-xs); }
    .cookie-banner-inner { flex-direction: column; align-items: flex-start; }
    .article-page { padding: var(--sp-xxl) var(--sp-base); }
    .article-page__h1 { font-size: 28px; letter-spacing: -0.5px; }
    .page-inner { padding: var(--sp-xxl) var(--sp-base); }
    .page-inner h1 { font-size: 28px; }
}

@media (max-width: 480px) {
    .hero-h1 { font-size: 32px; letter-spacing: -0.5px; }
    .container { padding: 0 var(--sp-base); }
    .hero-inner { padding: 0 var(--sp-base); }
    .hero-band { padding: var(--sp-xxl) 0; }
    .section-band { padding: var(--sp-xxl) 0; }
}