@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400&display=swap');

: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;
}

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

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

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

a {
    color: inherit;
    text-decoration: none;
}

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

code, pre, .mono {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== TOP NAV ===== */
.top-nav {
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    height: 64px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.top-nav__logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.3px;
}

.top-nav__logo span {
    color: var(--primary);
}

.top-nav__menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

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

.top-nav__menu a:hover {
    color: var(--ink);
}

.top-nav__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 4px;
}

.top-nav__hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
}

.mobile-menu {
    display: none;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    padding: 16px 24px;
}

.mobile-menu.open {
    display: block;
}

.mobile-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mobile-menu a {
    font-size: 14px;
    font-weight: 500;
    color: var(--body);
}

/* ===== HERO ===== */
.hero {
    padding: 80px 0;
    background: var(--canvas);
}

.hero__label {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 20px;
    background: var(--surface-strong);
    padding: 4px 10px;
    border-radius: 9999px;
}

.hero__title {
    font-size: 56px;
    font-weight: 400;
    color: var(--ink);
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 24px;
    max-width: 780px;
}

.hero__subtitle {
    font-size: 18px;
    color: var(--body);
    line-height: 1.5;
    max-width: 600px;
    margin-bottom: 40px;
}

.hero__meta {
    font-size: 13px;
    color: var(--muted);
}

/* ===== ARTICLE GRID ===== */
.section {
    padding: 80px 0;
}

.section__label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}

.section__title {
    font-size: 36px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.72px;
    line-height: 1.2;
    margin-bottom: 48px;
}

.section__divider {
    border: none;
    border-top: 1px solid var(--hairline);
    margin-bottom: 48px;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.article-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    overflow: hidden;
    transition: border-color 0.15s;
}

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

.article-card__image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--surface-strong);
}

.article-card__body {
    padding: 24px;
}

.article-card__tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    background: var(--surface-strong);
    padding: 4px 10px;
    border-radius: 9999px;
    margin-bottom: 12px;
}

.article-card__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.4;
    margin-bottom: 12px;
}

.article-card__excerpt {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 20px;
}

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

.article-card__link {
    display: inline-block;
    margin-top: 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
    border-bottom: 1px solid var(--primary);
    padding-bottom: 2px;
    transition: opacity 0.15s;
}

.article-card__link:hover {
    opacity: 0.75;
}

/* ===== FEATURED ARTICLE ===== */
.featured-article {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 48px;
}

.featured-article__image {
    width: 100%;
    height: 320px;
    object-fit: cover;
}

.featured-article__body {
    padding: 40px 40px 40px 0;
}

.featured-article__title {
    font-size: 26px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.325px;
    line-height: 1.25;
    margin-bottom: 16px;
}

.featured-article__excerpt {
    font-size: 16px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 24px;
}

/* ===== ARTICLE PAGE ===== */
.article-header {
    padding: 64px 0 48px;
    max-width: 780px;
}

.article-header__tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    background: var(--surface-strong);
    padding: 4px 10px;
    border-radius: 9999px;
    margin-bottom: 20px;
}

.article-header__title {
    font-size: 48px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -1.2px;
    line-height: 1.1;
    margin-bottom: 20px;
}

.article-header__subtitle {
    font-size: 18px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 24px;
}

.article-header__meta {
    font-size: 13px;
    color: var(--muted);
    display: flex;
    gap: 16px;
}

.article-image-hero {
    width: 100%;
    height: 420px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 48px;
    border: 1px solid var(--hairline);
}

.article-body {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 64px;
    padding-bottom: 80px;
}

.article-content {
    max-width: 720px;
}

.article-content h2 {
    font-size: 26px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.325px;
    line-height: 1.25;
    margin-top: 48px;
    margin-bottom: 16px;
}

.article-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.3;
    margin-top: 32px;
    margin-bottom: 12px;
}

.article-content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.65;
    margin-bottom: 20px;
}

.article-content ul, .article-content ol {
    padding-left: 24px;
    margin-bottom: 20px;
}

.article-content li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.65;
    margin-bottom: 8px;
}

.article-content a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.article-content strong {
    color: var(--ink);
    font-weight: 600;
}

.article-content .code-block {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    overflow-x: auto;
}

.article-content .code-block code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--ink);
    line-height: 1.5;
    white-space: pre;
}

.article-content .info-block {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--primary);
    border-radius: 8px;
    padding: 20px 24px;
    margin-bottom: 24px;
}

.article-content .info-block p {
    margin-bottom: 0;
    font-size: 15px;
}

.article-sidebar {
    padding-top: 8px;
}

.sidebar-widget {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.sidebar-widget__title {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}

.sidebar-widget ul {
    list-style: none;
}

.sidebar-widget li {
    padding: 10px 0;
    border-bottom: 1px solid var(--hairline-soft);
    font-size: 14px;
}

.sidebar-widget li:last-child {
    border-bottom: none;
}

.sidebar-widget a {
    color: var(--body);
    transition: color 0.15s;
}

.sidebar-widget a:hover {
    color: var(--ink);
}

/* ===== CONTACT FORM ===== */
.contact-section {
    padding: 80px 0;
    background: var(--canvas-soft);
    border-top: 1px solid var(--hairline);
}

.form-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 48px;
    max-width: 620px;
    margin: 0 auto;
}

.form-card__title {
    font-size: 26px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.325px;
    margin-bottom: 8px;
}

.form-card__subtitle {
    font-size: 15px;
    color: var(--body);
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--surface-card);
    border: 1px solid var(--hairline-strong);
    border-radius: 8px;
    padding: 12px 16px;
    height: 44px;
    font-size: 15px;
    color: var(--ink);
    font-family: inherit;
    transition: border-color 0.15s;
    outline: none;
}

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

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

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

.form-error-msg {
    font-size: 13px;
    color: var(--error);
    margin-top: 6px;
    display: none;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: var(--on-primary);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 18px;
    height: 40px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: background 0.15s;
    font-family: inherit;
}

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

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-success {
    display: none;
    background: var(--canvas-soft);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--success);
    border-radius: 8px;
    padding: 16px 20px;
    margin-top: 20px;
    font-size: 15px;
    color: var(--body);
}

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

.site-footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
}

.site-footer__brand p {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    margin-top: 12px;
    max-width: 220px;
}

.site-footer__col-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 16px;
}

.site-footer__links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.site-footer__links a {
    font-size: 14px;
    color: var(--body);
    transition: color 0.15s;
}

.site-footer__links a:hover {
    color: var(--ink);
}

.site-footer__bottom {
    border-top: 1px solid var(--hairline);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-footer__copy {
    font-size: 14px;
    color: var(--muted);
}

.site-footer__legal {
    display: flex;
    gap: 20px;
}

.site-footer__legal a {
    font-size: 14px;
    color: var(--muted);
    transition: color 0.15s;
}

.site-footer__legal a:hover {
    color: var(--body);
}

/* ===== PAGE HEADER ===== */
.page-header {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline);
    margin-bottom: 64px;
}

.page-header__title {
    font-size: 48px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -1.2px;
    line-height: 1.1;
    margin-bottom: 16px;
}

.page-header__subtitle {
    font-size: 18px;
    color: var(--body);
    line-height: 1.5;
    max-width: 560px;
}

/* ===== COOKIE BANNER ===== */
.cookie-banner {
    position: fixed;
    bottom: 24px;
    left: 24px;
    right: 24px;
    max-width: 560px;
    margin: 0 auto;
    background: var(--ink);
    color: var(--canvas);
    border-radius: 12px;
    padding: 20px 24px;
    z-index: 1000;
    display: none;
    box-shadow: 0 4px 24px rgba(38,37,30,0.18);
}

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

.cookie-banner__text {
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 16px;
    color: #d5d3cc;
}

.cookie-banner__text a {
    color: var(--canvas);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.cookie-banner__actions {
    display: flex;
    gap: 12px;
}

.btn-cookie-accept {
    background: var(--primary);
    color: var(--on-primary);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.btn-cookie-reject {
    background: transparent;
    color: #d5d3cc;
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.2);
    cursor: pointer;
    font-family: inherit;
}

/* ===== ABOUT PAGE ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
    margin-bottom: 64px;
}

.about-grid img {
    border-radius: 12px;
    border: 1px solid var(--hairline);
    width: 100%;
    height: 340px;
    object-fit: cover;
}

.about-content h2 {
    font-size: 26px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.325px;
    margin-bottom: 16px;
}

.about-content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.65;
    margin-bottom: 16px;
}

/* ===== PRIVACY / TERMS ===== */
.legal-content {
    max-width: 720px;
    padding-bottom: 80px;
}

.legal-content h2 {
    font-size: 22px;
    font-weight: 600;
    color: var(--ink);
    margin-top: 40px;
    margin-bottom: 12px;
}

.legal-content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.65;
    margin-bottom: 16px;
}

.legal-content ul {
    padding-left: 24px;
    margin-bottom: 16px;
}

.legal-content li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.65;
    margin-bottom: 8px;
}

/* ===== DISCLAIMER ===== */
.disclaimer-bar {
    background: var(--surface-strong);
    border-top: 1px solid var(--hairline);
    padding: 12px 0;
    font-size: 13px;
    color: var(--muted);
    text-align: center;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .site-footer__grid {
        grid-template-columns: 1fr 1fr 1fr;
    }
    .article-body {
        grid-template-columns: 1fr;
    }
    .article-sidebar {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero__title {
        font-size: 36px;
        letter-spacing: -0.8px;
    }
    .hero__subtitle {
        font-size: 16px;
    }
    .section__title {
        font-size: 28px;
    }
    .top-nav__menu {
        display: none;
    }
    .top-nav__hamburger {
        display: flex;
    }
    .featured-article {
        grid-template-columns: 1fr;
    }
    .featured-article__body {
        padding: 24px;
    }
    .featured-article__image {
        height: 220px;
    }
    .about-grid {
        grid-template-columns: 1fr;
    }
    .site-footer__grid {
        grid-template-columns: 1fr 1fr;
    }
    .site-footer__bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    .article-header__title {
        font-size: 32px;
    }
    .page-header__title {
        font-size: 32px;
    }
    .form-card {
        padding: 24px;
    }
}

@media (max-width: 640px) {
    .articles-grid {
        grid-template-columns: 1fr;
    }
    .hero {
        padding: 48px 0;
    }
    .section {
        padding: 48px 0;
    }
    .cookie-banner {
        left: 12px;
        right: 12px;
        bottom: 12px;
    }
    .article-image-hero {
        height: 240px;
    }
    .site-footer__grid {
        grid-template-columns: 1fr;
    }
}