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

: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;
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-pill: 9999px;
}

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;
}

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; }

/* NAV */
.site-nav {
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    height: 64px;
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.3px;
}
.nav-logo span { color: var(--primary); }
.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}
.nav-menu > li > a {
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    transition: background 0.15s;
}
.nav-menu > li > a:hover { background: var(--surface-strong); color: var(--ink); }
.nav-dropdown { position: relative; }
.nav-submenu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    list-style: none;
    min-width: 220px;
    padding: 8px 0;
    z-index: 200;
}
.nav-dropdown:hover .nav-submenu { display: block; }
.nav-submenu li a {
    display: block;
    padding: 8px 16px;
    font-size: 14px;
    color: var(--body);
    white-space: nowrap;
}
.nav-submenu li a:hover { background: var(--canvas); 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: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: 0.2s; }

/* HERO */
.hero {
    padding: 80px 0;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline-soft);
}
.hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.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: var(--radius-pill);
    margin-bottom: 20px;
}
.hero h1 {
    font-size: 56px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -1.5px;
    color: var(--ink);
    margin-bottom: 20px;
}
.hero-desc {
    font-size: 16px;
    line-height: 1.6;
    color: var(--body);
    max-width: 480px;
    margin-bottom: 32px;
}
.hero-image-wrap {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
    background: var(--surface-card);
}
.hero-image-wrap img { width: 100%; height: 380px; object-fit: cover; }

/* SECTIONS */
.section { padding: 80px 0; }
.section-alt { background: var(--canvas-soft); border-top: 1px solid var(--hairline-soft); border-bottom: 1px solid var(--hairline-soft); }
.section-label {
    display: inline-block;
    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;
    letter-spacing: -0.72px;
    color: var(--ink);
    line-height: 1.2;
    margin-bottom: 16px;
}
.section-sub {
    font-size: 16px;
    color: var(--body);
    max-width: 600px;
    line-height: 1.6;
    margin-bottom: 48px;
}

/* CARDS GRID */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cards-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }

.card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: border-color 0.15s;
}
.card:hover { border-color: var(--hairline-strong); }
.card-image { border-radius: var(--radius-md); overflow: hidden; margin-bottom: 16px; }
.card-image img { width: 100%; height: 200px; object-fit: cover; }
.card-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    background: var(--surface-strong);
    color: var(--muted);
    padding: 3px 8px;
    border-radius: var(--radius-pill);
    margin-bottom: 10px;
}
.card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.35;
    margin-bottom: 10px;
}
.card p {
    font-size: 14px;
    color: var(--body);
    line-height: 1.55;
}
.card-link {
    display: inline-block;
    margin-top: 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
    border-bottom: 1px solid transparent;
}
.card-link:hover { border-color: var(--primary); color: var(--primary); }

/* ARTICLE CARD (wide) */
.article-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: grid;
    grid-template-columns: 320px 1fr;
    margin-bottom: 16px;
    transition: border-color 0.15s;
}
.article-card:hover { border-color: var(--hairline-strong); }
.article-card-img img { width: 100%; height: 100%; object-fit: cover; min-height: 220px; }
.article-card-body { padding: 28px 32px; display: flex; flex-direction: column; justify-content: center; }
.article-card-body h3 { font-size: 22px; font-weight: 400; letter-spacing: -0.11px; color: var(--ink); margin-bottom: 10px; line-height: 1.3; }
.article-card-body p { font-size: 15px; color: var(--body); line-height: 1.6; margin-bottom: 16px; }
.article-meta { font-size: 13px; color: var(--muted); }

/* FORM */
.form-section { padding: 80px 0; }
.form-wrap {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 48px;
    max-width: 640px;
    margin: 0 auto;
}
.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: var(--radius-md);
    padding: 12px 16px;
    height: 44px;
    font-size: 16px;
    font-family: inherit;
    color: var(--ink);
    transition: border-color 0.15s;
}
.form-group textarea { height: 120px; resize: vertical; }
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    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: var(--radius-md);
    padding: 10px 20px;
    height: 44px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s;
}
.btn-primary:hover { background: var(--primary-active); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }
.form-message {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    display: none;
}
.form-message.success { background: #e6f4ef; color: var(--semantic-success); border: 1px solid #b3dece; }
.form-message.error { background: #fdedf1; color: var(--semantic-error); border: 1px solid #f5c0ce; }

/* ARTICLE PAGE */
.article-hero {
    padding: 60px 0 0;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline-soft);
}
.article-hero-inner { max-width: 800px; margin: 0 auto; padding: 0 24px 48px; }
.article-hero-inner h1 {
    font-size: 40px;
    font-weight: 400;
    letter-spacing: -0.9px;
    color: var(--ink);
    line-height: 1.2;
    margin-bottom: 16px;
}
.article-hero-inner .article-desc {
    font-size: 17px;
    color: var(--body);
    line-height: 1.65;
    margin-bottom: 24px;
}
.article-cover {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.article-cover img {
    width: 100%;
    max-height: 480px;
    object-fit: cover;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    border: 1px solid var(--hairline);
    border-bottom: none;
}
.article-body {
    max-width: 800px;
    margin: 0 auto;
    padding: 48px 24px 80px;
}
.article-body h2 {
    font-size: 28px;
    font-weight: 400;
    letter-spacing: -0.5px;
    color: var(--ink);
    margin: 40px 0 14px;
    line-height: 1.25;
}
.article-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    margin: 28px 0 10px;
}
.article-body p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.7;
    margin-bottom: 18px;
    letter-spacing: 0.08px;
}
.article-body ul, .article-body ol {
    margin: 0 0 18px 24px;
    font-size: 16px;
    color: var(--body);
    line-height: 1.7;
}
.article-body li { margin-bottom: 6px; }
.article-body a { color: var(--primary); border-bottom: 1px solid transparent; }
.article-body a:hover { border-color: var(--primary); }
.article-body blockquote {
    border-left: 3px solid var(--hairline-strong);
    margin: 24px 0;
    padding: 12px 20px;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.65;
}
.info-box {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin: 24px 0;
}
.info-box h4 { font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.5px; }
.info-box ul { margin: 0 0 0 20px; }
.info-box li { font-size: 15px; color: var(--body); margin-bottom: 4px; }

/* BREADCRUMB */
.breadcrumb {
    padding: 16px 0 0;
    font-size: 13px;
    color: var(--muted);
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb span { margin: 0 6px; }

/* PAGE HERO */
.page-hero {
    padding: 60px 0 48px;
    border-bottom: 1px solid var(--hairline-soft);
}
.page-hero h1 {
    font-size: 40px;
    font-weight: 400;
    letter-spacing: -0.9px;
    color: var(--ink);
    margin-bottom: 12px;
    line-height: 1.2;
}
.page-hero p { font-size: 16px; color: var(--body); max-width: 560px; line-height: 1.6; }
.page-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 48px 24px 80px;
}
.page-content h2 {
    font-size: 24px;
    font-weight: 400;
    letter-spacing: -0.3px;
    color: var(--ink);
    margin: 36px 0 12px;
}
.page-content p { font-size: 15px; color: var(--body); line-height: 1.7; margin-bottom: 16px; }
.page-content ul { margin: 0 0 16px 24px; }
.page-content li { font-size: 15px; color: var(--body); line-height: 1.7; margin-bottom: 4px; }
.updated-date { font-size: 13px; color: var(--muted); margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--hairline); }

/* FOOTER */
.site-footer {
    background: var(--canvas);
    border-top: 1px solid var(--hairline);
    padding: 64px 0 48px;
}
.footer-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
}
.footer-logo { font-size: 18px; font-weight: 600; color: var(--ink); }
.footer-logo span { color: var(--primary); }
.footer-tagline { font-size: 14px; color: var(--body); line-height: 1.55; margin-top: 10px; max-width: 240px; }
.footer-col h4 { font-size: 13px; font-weight: 600; color: var(--ink); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 14px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 14px; color: var(--body); }
.footer-col ul li a:hover { color: var(--ink); }
.footer-bottom { border-top: 1px solid var(--hairline-soft); padding-top: 24px; }
.footer-bottom p { font-size: 13px; color: var(--muted); margin-bottom: 6px; }

/* COOKIE */
.cookie-banner {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--ink);
    color: var(--canvas);
    border-radius: var(--radius-lg);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    gap: 24px;
    z-index: 9999;
    max-width: 640px;
    width: calc(100% - 48px);
    display: none;
}
.cookie-banner.visible { display: flex; }
.cookie-inner {
    display: flex;
    align-items: center;
    gap: 24px;
    width: 100%;
    flex-wrap: wrap;
}
.cookie-banner p { font-size: 14px; color: var(--canvas); flex: 1; line-height: 1.5; }
.cookie-banner a { color: var(--primary); }
.cookie-actions { display: flex; gap: 8px; }
.btn-cookie-accept {
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    border-radius: var(--radius-md);
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
}
.btn-cookie-reject {
    background: transparent;
    color: var(--canvas);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: var(--radius-md);
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
}
.btn-cookie-accept:hover { background: var(--primary-active); }
.btn-cookie-reject:hover { border-color: rgba(255,255,255,0.6); }

/* RELATED ARTICLES */
.related-section { padding: 48px 0 80px; background: var(--canvas-soft); border-top: 1px solid var(--hairline-soft); }

/* RESPONSIVE */
@media (max-width: 1024px) {
    .cards-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-inner { grid-template-columns: 1fr; gap: 32px; }
    .hero h1 { font-size: 42px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .article-card { grid-template-columns: 240px 1fr; }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        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: 4px;
        align-items: flex-start;
    }
    .nav-menu.open { display: flex; }
    .nav-submenu { position: static; box-shadow: none; border: none; padding-left: 16px; display: none; }
    .nav-dropdown.open .nav-submenu { display: block; }
    .hero h1 { font-size: 32px; letter-spacing: -0.8px; }
    .hero-image-wrap img { height: 240px; }
    .section-title { font-size: 26px; }
    .cards-grid { grid-template-columns: 1fr; }
    .cards-grid-2 { grid-template-columns: 1fr; }
    .article-card { grid-template-columns: 1fr; }
    .article-card-img img { min-height: 200px; }
    .form-wrap { padding: 28px 20px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .article-hero-inner h1 { font-size: 28px; }
    .page-hero h1 { font-size: 28px; }
}

@media (max-width: 640px) {
    .hero { padding: 48px 0; }
    .section { padding: 48px 0; }
    .cookie-banner { bottom: 16px; width: calc(100% - 32px); }
    .cookie-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
}