@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 {
    background-color: 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: var(--ink); text-decoration: none; }
a:hover { color: var(--primary); }

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

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

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

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.site-logo {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.3px;
}

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

.site-nav { display: flex; align-items: center; gap: 32px; }

.site-nav a {
    font-size: 14px;
    font-weight: 500;
    color: var(--body);
    transition: color 0.15s;
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--ink);
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    margin: 4px 0;
    transition: 0.3s;
}

/* HERO */
.hero {
    padding: 80px 0;
    border-bottom: 1px solid var(--hairline-soft);
}

.hero-label {
    display: inline-block;
    background: var(--surface-strong);
    color: var(--ink);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 9999px;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 72px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -2.16px;
    color: var(--ink);
    max-width: 800px;
    margin-bottom: 24px;
}

.hero-sub {
    font-size: 18px;
    color: var(--body);
    max-width: 560px;
    line-height: 1.5;
    margin-bottom: 40px;
}

/* SECTIONS */
.section { padding: 80px 0; }
.section-alt { background: var(--canvas-soft); }
.section-bordered { border-top: 1px solid var(--hairline-soft); }

.section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
}

.section-title {
    font-size: 36px;
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.72px;
    color: var(--ink);
    margin-bottom: 16px;
}

.section-sub {
    font-size: 16px;
    color: var(--body);
    max-width: 580px;
    line-height: 1.5;
    margin-bottom: 48px;
}

/* CARD GRID */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.card-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

/* ARTICLE CARD */
.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-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.article-card-body { padding: 24px; }

.article-card-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
    display: block;
}

.article-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.3;
    margin-bottom: 12px;
}

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

.article-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--hairline-soft);
}

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

.read-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
}

/* FEATURE CARD */
.feature-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 24px;
}

.feature-card-icon {
    width: 40px;
    height: 40px;
    background: var(--surface-strong);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 20px;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 8px;
    line-height: 1.3;
}

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

/* ARTICLE PAGE */
.article-hero {
    padding: 60px 0 0;
    border-bottom: 1px solid var(--hairline-soft);
}

.article-hero-inner {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
}

.breadcrumb {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 24px;
}

.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { margin: 0 8px; }

.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.article-category-pill {
    background: var(--surface-strong);
    color: var(--ink);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 9999px;
}

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

.article-hero h1 {
    font-size: 48px;
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -1.2px;
    color: var(--ink);
    margin-bottom: 20px;
}

.article-intro {
    font-size: 18px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 40px;
    max-width: 680px;
}

.article-featured-img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    border-radius: 12px 12px 0 0;
}

/* ARTICLE CONTENT */
.article-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 48px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 60px 24px;
    align-items: start;
}

.article-body { min-width: 0; }

.article-body h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    color: var(--ink);
    margin: 40px 0 16px;
    line-height: 1.25;
}

.article-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    margin: 28px 0 12px;
    line-height: 1.3;
}

.article-body p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.7;
    margin-bottom: 20px;
}

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

.article-body li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.7;
    margin-bottom: 8px;
}

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

.article-body a {
    color: var(--primary);
    text-decoration: underline;
    text-decoration-color: rgba(245, 78, 0, 0.3);
}

.article-body a:hover { text-decoration-color: var(--primary); }

.tip-box {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--primary);
    border-radius: 8px;
    padding: 20px 24px;
    margin: 28px 0;
}

.tip-box-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 8px;
}

.tip-box p {
    margin-bottom: 0;
    font-size: 15px;
}

.materials-list {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 24px;
    margin: 28px 0;
}

.materials-list h4 {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}

.materials-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.materials-list li {
    font-size: 15px;
    color: var(--body);
    padding: 8px 0;
    border-bottom: 1px solid var(--hairline-soft);
    display: flex;
    align-items: center;
    gap: 10px;
}

.materials-list li:last-child { border-bottom: none; }

.materials-list li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    flex-shrink: 0;
}

.step-block {
    display: flex;
    gap: 20px;
    margin-bottom: 28px;
}

.step-number {
    width: 32px;
    height: 32px;
    background: var(--ink);
    color: var(--canvas);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
    margin-top: 4px;
}

.step-content h3 { margin-top: 0; }

/* SIDEBAR */
.article-sidebar {}

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

.sidebar-card h4 {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}

.sidebar-article {
    display: flex;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--hairline-soft);
}

.sidebar-article:last-child { border-bottom: none; padding-bottom: 0; }

.sidebar-article-img {
    width: 56px;
    height: 56px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
}

.sidebar-article-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    line-height: 1.35;
}

.sidebar-article-date { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* FORM */
.contact-form {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 40px;
    max-width: 640px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--surface-card);
    border: 1px solid var(--hairline-strong);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 16px;
    color: var(--ink);
    font-family: inherit;
    height: 44px;
    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(--primary);
}

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

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

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

.form-message {
    display: none;
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
}

.form-message.success {
    background: rgba(31, 138, 101, 0.1);
    color: var(--success);
    border: 1px solid rgba(31, 138, 101, 0.2);
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 32px;
    margin-bottom: 48px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.6;
    margin-top: 12px;
    max-width: 260px;
}

.footer-col h5 {
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 16px;
    letter-spacing: 0.2px;
}

.footer-col ul { list-style: none; }

.footer-col li { margin-bottom: 10px; }

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

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 32px;
    border-top: 1px solid var(--hairline-soft);
}

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

.footer-bottom-links { display: flex; gap: 24px; }

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

.footer-bottom-links a:hover { color: var(--primary); }

/* COOKIE BANNER */
.cookie-banner {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--ink);
    color: var(--canvas);
    border-radius: 12px;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    gap: 24px;
    max-width: 680px;
    width: calc(100% - 48px);
    z-index: 1000;
    box-shadow: 0 4px 24px rgba(38, 37, 30, 0.15);
}

.cookie-banner p {
    font-size: 14px;
    line-height: 1.5;
    flex: 1;
}

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

.cookie-actions { display: flex; gap: 8px; flex-shrink: 0; }

.btn-cookie-accept {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    white-space: nowrap;
}

.btn-cookie-reject {
    background: rgba(247, 247, 244, 0.15);
    color: var(--canvas);
    border: 1px solid rgba(247, 247, 244, 0.3);
    border-radius: 8px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    white-space: nowrap;
}

/* PAGE CONTENT */
.page-hero {
    padding: 60px 0 48px;
    border-bottom: 1px solid var(--hairline-soft);
}

.page-hero h1 {
    font-size: 48px;
    font-weight: 400;
    letter-spacing: -1.2px;
    color: var(--ink);
    margin-bottom: 16px;
    line-height: 1.15;
}

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

.page-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 24px;
}

.page-content h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    color: var(--ink);
    margin: 40px 0 16px;
    line-height: 1.25;
}

.page-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    margin: 28px 0 12px;
}

.page-content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.7;
    margin-bottom: 20px;
}

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

.page-content li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.7;
    margin-bottom: 8px;
}

.page-content a { color: var(--primary); }

.page-updated {
    font-size: 13px;
    color: var(--muted);
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--hairline-soft);
}

/* DISCLAIMER */
.disclaimer-bar {
    background: var(--surface-card);
    border-bottom: 1px solid var(--hairline);
    padding: 10px 0;
    text-align: center;
}

.disclaimer-bar p {
    font-size: 12px;
    color: var(--muted);
}

/* ABOUT */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-img {
    width: 100%;
    height: 360px;
    object-fit: cover;
    border-radius: 12px;
    border: 1px solid var(--hairline);
}

.about-text h2 {
    font-size: 36px;
    font-weight: 400;
    letter-spacing: -0.72px;
    color: var(--ink);
    margin-bottom: 20px;
}

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

/* RESPONSIVE */
@media (max-width: 1024px) {
    .hero h1 { font-size: 56px; letter-spacing: -1.5px; }
    .card-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
    .article-layout { grid-template-columns: 1fr; }
    .article-sidebar { display: none; }
}

@media (max-width: 768px) {
    .hero h1 { font-size: 40px; letter-spacing: -1px; }
    .hero { padding: 48px 0; }
    .section { padding: 48px 0; }
    .section-title { font-size: 28px; }
    .card-grid { grid-template-columns: 1fr; }
    .card-grid-2 { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
    .about-grid { grid-template-columns: 1fr; }
    .contact-form { padding: 24px; }

    .site-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--canvas);
        border-bottom: 1px solid var(--hairline);
        flex-direction: column;
        padding: 16px 24px;
        gap: 16px;
        align-items: flex-start;
    }

    .site-nav.open { display: flex; }
    .nav-toggle { display: block; }
    .site-header { position: relative; }

    .article-hero h1 { font-size: 32px; letter-spacing: -0.5px; }
    .article-featured-img { height: 220px; }
}

@media (max-width: 640px) {
    .hero h1 { font-size: 32px; }
    .cookie-banner { flex-direction: column; gap: 16px; }
    .cookie-actions { width: 100%; justify-content: flex-end; }
    .footer-grid { grid-template-columns: 1fr; }
    .article-layout { padding: 32px 24px; }
}