@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;
    --on-primary: #ffffff;
    --ink: #26251e;
    --body: #5a5852;
    --body-strong: #26251e;
    --muted: #807d72;
    --muted-soft: #a09c92;
    --hairline: #e6e5e0;
    --hairline-soft: #efeee8;
    --hairline-strong: #cfcdc4;
    --semantic-success: #1f8a65;
    --semantic-error: #cf2d56;

    --rounded-xs: 4px;
    --rounded-sm: 6px;
    --rounded-md: 8px;
    --rounded-lg: 12px;
    --rounded-xl: 16px;
    --rounded-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-color: var(--canvas);
    color: var(--body);
    font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 400;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

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

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

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

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

.site-nav .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: var(--spacing-lg);
}

.site-nav .logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.02em;
    flex-shrink: 0;
}

.site-nav .logo span {
    color: var(--primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    list-style: none;
}

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

.nav-links a:hover,
.nav-links a.active {
    color: var(--ink);
}

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

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

.mobile-menu {
    display: none;
    background-color: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    padding: var(--spacing-base) 0;
}

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

.mobile-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.mobile-menu ul a {
    display: block;
    padding: var(--spacing-xs) var(--spacing-base);
    font-size: 15px;
    font-weight: 500;
    color: var(--body);
}

.mobile-menu ul a:hover {
    color: var(--ink);
}

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

.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);
    padding: 4px 10px;
    border-radius: var(--rounded-pill);
    margin-bottom: var(--spacing-lg);
}

.hero h1 {
    font-size: 56px;
    font-weight: 400;
    color: var(--ink);
    line-height: 1.1;
    letter-spacing: -1.5px;
    max-width: 800px;
    margin-bottom: var(--spacing-lg);
}

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

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

/* ---- SECTIONS ---- */
.section {
    padding: var(--spacing-section) 0;
}

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

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

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

.divider {
    border: none;
    border-top: 1px solid var(--hairline);
    margin: 0;
}

/* ---- CARDS ---- */
.card-grid {
    display: grid;
    gap: var(--spacing-base);
}

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

.card-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

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

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

.card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--rounded-md);
    margin-bottom: var(--spacing-base);
}

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

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.4;
    margin-bottom: var(--spacing-xs);
}

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

.card-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    border-bottom: 1px solid var(--hairline-strong);
    padding-bottom: 1px;
    transition: border-color 0.15s ease;
    display: inline-block;
}

.card-link:hover {
    border-color: var(--ink);
}

/* Article card */
.article-card {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: var(--spacing-lg);
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-lg);
    transition: border-color 0.15s ease;
}

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

.article-card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: var(--rounded-md);
}

.article-card-content {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.article-card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

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

/* ---- ARTICLE CONTENT ---- */
.article-hero {
    padding: var(--spacing-section) 0 var(--spacing-xl);
}

.article-body {
    max-width: 720px;
    margin: 0 auto;
    padding: var(--spacing-xxl) var(--spacing-base);
}

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

.article-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.4;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
}

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

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

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

.article-body a {
    color: var(--ink);
    border-bottom: 1px solid var(--hairline-strong);
    padding-bottom: 1px;
}

.article-body a:hover {
    border-color: var(--ink);
}

.article-body figure {
    margin: var(--spacing-xxl) 0;
}

.article-body figure img {
    width: 100%;
    border-radius: var(--rounded-lg);
    border: 1px solid var(--hairline);
}

.article-body figcaption {
    font-size: 13px;
    color: var(--muted);
    margin-top: var(--spacing-xs);
    line-height: 1.4;
}

.article-body blockquote {
    border-left: 3px solid var(--hairline-strong);
    padding-left: var(--spacing-base);
    margin: var(--spacing-xl) 0;
    color: var(--muted);
    font-size: 16px;
    line-height: 1.7;
}

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

.info-box-title {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: var(--spacing-sm);
}

/* ---- PAGE CONTENT ---- */
.page-hero {
    padding: var(--spacing-section) 0 var(--spacing-xl);
    border-bottom: 1px solid var(--hairline);
}

.page-hero h1 {
    font-size: 36px;
    font-weight: 400;
    color: var(--ink);
    line-height: 1.2;
    letter-spacing: -0.72px;
    margin-bottom: var(--spacing-sm);
}

.page-hero p {
    font-size: 16px;
    color: var(--muted);
}

.page-body {
    max-width: 720px;
    padding: var(--spacing-xxl) var(--spacing-base);
}

.page-body h2 {
    font-size: 22px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.11px;
    line-height: 1.3;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
}

.page-body h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    margin-top: var(--spacing-base);
    margin-bottom: var(--spacing-xs);
}

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

.page-body ul {
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-base);
}

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

.page-body a {
    color: var(--ink);
    border-bottom: 1px solid var(--hairline-strong);
    padding-bottom: 1px;
}

/* ---- FORM ---- */
.form-section {
    padding: var(--spacing-section) 0;
    border-top: 1px solid var(--hairline);
}

.contact-form {
    max-width: 560px;
}

.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-xxs);
}

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

.form-group textarea {
    height: auto;
    min-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(--semantic-error);
}

.field-error {
    font-size: 13px;
    color: var(--semantic-error);
    margin-top: 4px;
    display: none;
}

.field-error.visible {
    display: block;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--on-primary);
    border: none;
    border-radius: var(--rounded-md);
    padding: 10px 18px;
    height: 40px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: background-color 0.15s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    line-height: 1;
}

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

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

.form-success {
    display: none;
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-base);
}

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

.form-success p {
    font-size: 15px;
    color: var(--semantic-success);
    font-weight: 500;
}

/* ---- FOOTER ---- */
.site-footer {
    background-color: 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);
    margin-bottom: var(--spacing-xxl);
}

.footer-brand .logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.02em;
    display: block;
    margin-bottom: var(--spacing-sm);
}

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

.footer-brand p {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    max-width: 260px;
}

.footer-col h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: var(--spacing-base);
    letter-spacing: 0.3px;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-col ul a {
    font-size: 14px;
    color: var(--body);
    transition: color 0.15s ease;
    line-height: 1.5;
}

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

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--hairline);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer-bottom p {
    font-size: 13px;
    color: var(--muted);
}

.footer-bottom a {
    color: var(--muted);
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* ---- COOKIE BANNER ---- */
#cookie-banner {
    position: fixed;
    bottom: var(--spacing-base);
    left: var(--spacing-base);
    right: var(--spacing-base);
    max-width: 520px;
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-lg);
    z-index: 1000;
    display: none;
    box-shadow: 0 4px 16px rgba(38, 37, 30, 0.08);
}

#cookie-banner.show {
    display: block;
}

#cookie-banner p {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: var(--spacing-base);
}

#cookie-banner a {
    color: var(--ink);
    text-decoration: underline;
    text-underline-offset: 3px;
}

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

.btn-cookie-accept {
    background-color: var(--ink);
    color: var(--canvas);
    border: none;
    border-radius: var(--rounded-md);
    padding: 10px 18px;
    height: 40px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: opacity 0.15s ease;
}

.btn-cookie-accept:hover {
    opacity: 0.85;
}

.btn-cookie-reject {
    background-color: transparent;
    color: var(--body);
    border: 1px solid var(--hairline-strong);
    border-radius: var(--rounded-md);
    padding: 10px 18px;
    height: 40px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: border-color 0.15s ease;
}

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

/* ---- BREADCRUMB ---- */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-base) 0;
    border-bottom: 1px solid var(--hairline);
}

.breadcrumb a,
.breadcrumb span {
    font-size: 13px;
    color: var(--muted);
}

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

.breadcrumb-sep {
    color: var(--hairline-strong);
}

/* ---- LOADING SPINNER ---- */
.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: none;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 48px;
    }

    .footer-inner {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-hamburger {
        display: flex;
    }

    .hero h1 {
        font-size: 36px;
        letter-spacing: -0.8px;
    }

    .hero p {
        font-size: 16px;
    }

    .section-title {
        font-size: 26px;
    }

    .card-grid-2,
    .card-grid-3 {
        grid-template-columns: 1fr;
    }

    .article-card {
        grid-template-columns: 1fr;
    }

    .article-card img {
        height: 200px;
    }

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

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 640px) {
    .hero {
        padding: 48px 0;
    }

    .hero h1 {
        font-size: 32px;
    }

    .section {
        padding: 48px 0;
    }
}