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

:root {
    --canvas:          #181818;
    --canvas-elevated: #303030;
    --canvas-light:    #ffffff;
    --surface-soft:    #f7f7f7;
    --surface-strong:  #ebebeb;
    --primary:         #da291c;
    --primary-active:  #b01e0a;
    --ink:             #ffffff;
    --body-color:      #969696;
    --body-strong:     #ffffff;
    --body-on-light:   #181818;
    --muted:           #666666;
    --hairline:        #303030;
    --hairline-light:  #d2d2d2;
    --on-primary:      #ffffff;
    --sp-xxxs: 4px;
    --sp-xxs:  8px;
    --sp-xs:   16px;
    --sp-sm:   24px;
    --sp-md:   32px;
    --sp-lg:   48px;
    --sp-xl:   64px;
    --sp-xxl:  96px;
    --sp-super:128px;
    --font: 'Inter', -apple-system, system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
    background: var(--canvas);
    color: var(--body-color);
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--ink); }
img { display: block; max-width: 100%; height: auto; }
address { font-style: normal; }
ul { list-style: none; }

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--sp-md);
}

/* ===== NAV ===== */
.top-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    height: 64px;
}
.nav-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--sp-md);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-md);
}
.nav-brand {
    font-size: 18px;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.36px;
    flex-shrink: 0;
}
.nav-brand-dot { color: var(--primary); }
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
}
.nav-menu li a {
    font-size: 13px;
    font-weight: 600;
    color: var(--body-color);
    text-transform: uppercase;
    letter-spacing: 0.65px;
    transition: color .15s;
}
.nav-menu li a:hover,
.nav-menu li a[aria-current="page"] { color: var(--ink); }
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--sp-xxs);
}
.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    transition: all .2s;
}

/* ===== HERO ===== */
.hero-band {
    position: relative;
    width: 100%;
    height: 560px;
    overflow: hidden;
}
.hero-band img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(24,24,24,0.15) 0%, rgba(24,24,24,0.75) 100%);
}
.hero-content {
    position: absolute;
    bottom: var(--sp-xxl);
    left: 0;
    right: 0;
    padding: 0 var(--sp-md);
    max-width: 1280px;
    margin: 0 auto;
}
.hero-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.1px;
    color: var(--primary);
    margin-bottom: var(--sp-xs);
}
.hero-content h1 {
    font-size: 56px;
    font-weight: 500;
    color: var(--ink);
    line-height: 1.1;
    letter-spacing: -1.12px;
    max-width: 680px;
    margin-bottom: var(--sp-sm);
}
.hero-content p {
    font-size: 16px;
    color: var(--body-color);
    max-width: 520px;
    line-height: 1.6;
}

/* ===== SECTION TITLES ===== */
.section-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.1px;
    color: var(--primary);
    margin-bottom: var(--sp-xs);
}
.section-title {
    font-size: 36px;
    font-weight: 500;
    color: var(--ink);
    line-height: 1.2;
    letter-spacing: -0.36px;
    margin-bottom: var(--sp-sm);
}
.section-sub {
    font-size: 14px;
    color: var(--body-color);
    max-width: 560px;
    line-height: 1.6;
}

/* ===== ARTICLE CARDS ===== */
.articles-section {
    padding: var(--sp-xxl) 0;
}
.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-md);
    margin-top: var(--sp-lg);
}
.article-card {
    background: var(--canvas-elevated);
    overflow: hidden;
    border: 1px solid var(--hairline);
    transition: border-color .15s;
}
.article-card:hover { border-color: #555; }
.article-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}
.article-card-body {
    padding: var(--sp-sm);
}
.article-card-meta {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.1px;
    color: var(--muted);
    margin-bottom: var(--sp-xxs);
}
.article-card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.3;
    margin-bottom: var(--sp-xs);
}
.article-card-excerpt {
    font-size: 13px;
    color: var(--body-color);
    line-height: 1.5;
    margin-bottom: var(--sp-sm);
}
.btn-link {
    display: inline-block;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.4px;
    color: var(--primary);
    border-bottom: 1px solid var(--primary);
    padding-bottom: 2px;
    transition: color .15s, border-color .15s;
}
.btn-link:hover { color: var(--primary-active); border-color: var(--primary-active); }

/* ===== ACCENT BAND ===== */
.accent-band {
    background: var(--primary);
    padding: var(--sp-xxl) 0;
}
.accent-band h2 {
    font-size: 36px;
    font-weight: 500;
    color: var(--ink);
    letter-spacing: -0.36px;
    line-height: 1.2;
    margin-bottom: var(--sp-xs);
}
.accent-band p {
    font-size: 15px;
    color: rgba(255,255,255,0.8);
    max-width: 560px;
    line-height: 1.6;
}

/* ===== CONTACT FORM ===== */
.contact-section {
    padding: var(--sp-xxl) 0;
    background: var(--canvas-elevated);
}
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-xl);
    align-items: start;
}
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--sp-sm);
}
.form-row {
    display: flex;
    flex-direction: column;
    gap: var(--sp-xxs);
}
.form-row label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.1px;
    color: var(--muted);
}
.form-row input,
.form-row textarea {
    background: var(--canvas);
    color: var(--ink);
    border: 1px solid var(--hairline);
    border-radius: 4px;
    padding: 14px 16px;
    font-family: var(--font);
    font-size: 14px;
    outline: none;
    transition: border-color .15s;
}
.form-row input:focus,
.form-row textarea:focus { border-color: var(--primary); }
.form-row textarea { resize: vertical; min-height: 100px; }
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: var(--on-primary);
    font-family: var(--font);
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.4px;
    padding: 14px 32px;
    height: 48px;
    border: none;
    border-radius: 0;
    cursor: pointer;
    transition: background .15s;
}
.btn-primary:hover,
.btn-primary:focus { background: var(--primary-active); color: var(--on-primary); }
.contact-info p {
    font-size: 14px;
    color: var(--body-color);
    line-height: 1.7;
    margin-bottom: var(--sp-xs);
}
.contact-info a { color: var(--ink); }
.contact-info strong { color: var(--ink); font-weight: 600; }

/* ===== ARTICLE PAGE ===== */
.article-hero {
    position: relative;
    width: 100%;
    height: 420px;
    overflow: hidden;
}
.article-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.article-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(24,24,24,0.2) 0%, rgba(24,24,24,0.7) 100%);
}
.article-hero-content {
    position: absolute;
    bottom: var(--sp-xl);
    left: 0; right: 0;
    padding: 0 var(--sp-md);
    max-width: 1280px;
    margin: 0 auto;
}
.article-hero-content h1 {
    font-size: 46px;
    font-weight: 500;
    color: var(--ink);
    line-height: 1.15;
    letter-spacing: -0.92px;
    max-width: 760px;
}
.article-body-section {
    padding: var(--sp-xxl) 0;
}
.article-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--sp-xl);
    align-items: start;
}
.article-content h2 {
    font-size: 26px;
    font-weight: 500;
    color: var(--ink);
    letter-spacing: 0.195px;
    line-height: 1.5;
    margin: var(--sp-lg) 0 var(--sp-sm);
}
.article-content h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.3;
    margin: var(--sp-md) 0 var(--sp-xs);
}
.article-content p {
    font-size: 15px;
    color: var(--body-color);
    line-height: 1.7;
    margin-bottom: var(--sp-sm);
}
.article-content ul,
.article-content ol {
    margin: 0 0 var(--sp-sm) var(--sp-md);
    list-style: disc;
}
.article-content ol { list-style: decimal; }
.article-content li {
    font-size: 15px;
    color: var(--body-color);
    line-height: 1.7;
    margin-bottom: var(--sp-xxs);
}
.article-content a { color: var(--ink); border-bottom: 1px solid var(--hairline); }
.article-content a:hover { border-color: var(--ink); }
.article-meta {
    font-size: 12px;
    color: var(--muted);
    margin-bottom: var(--sp-lg);
    display: flex;
    gap: var(--sp-sm);
    flex-wrap: wrap;
}
.article-sidebar {
    position: sticky;
    top: 80px;
}
.sidebar-card {
    background: var(--canvas-elevated);
    border: 1px solid var(--hairline);
    padding: var(--sp-sm);
    margin-bottom: var(--sp-md);
}
.sidebar-card-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.1px;
    color: var(--muted);
    margin-bottom: var(--sp-xs);
}
.sidebar-card ul li {
    padding: var(--sp-xxs) 0;
    border-bottom: 1px solid var(--hairline);
}
.sidebar-card ul li:last-child { border-bottom: none; }
.sidebar-card ul li a {
    font-size: 13px;
    color: var(--body-color);
    display: block;
}
.sidebar-card ul li a:hover { color: var(--ink); }
.tip-box {
    background: var(--canvas);
    border-left: 3px solid var(--primary);
    padding: var(--sp-sm);
    margin: var(--sp-md) 0;
}
.tip-box p {
    font-size: 14px;
    color: var(--body-color);
    line-height: 1.6;
    margin: 0;
}
.tip-box strong { color: var(--ink); }

/* ===== LIGHT BAND ===== */
.light-band {
    background: var(--surface-soft);
    padding: var(--sp-xxl) 0;
}
.light-band .section-title { color: var(--body-on-light); }
.light-band .section-sub { color: #555; }
.light-band .section-label { color: var(--primary); }
.specs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-md);
    margin-top: var(--sp-lg);
}
.spec-cell {
    background: var(--canvas-light);
    border: 1px solid var(--hairline-light);
    padding: var(--sp-md);
    text-align: center;
}
.spec-value {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.0;
    letter-spacing: -1px;
}
.spec-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.1px;
    color: var(--body-on-light);
    margin-top: var(--sp-xxs);
}

/* ===== BADGE ===== */
.badge {
    display: inline-block;
    background: var(--canvas-elevated);
    color: var(--ink);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.1px;
    border-radius: 9999px;
    padding: 4px 12px;
}

/* ===== STATIC PAGES ===== */
.static-page {
    padding: var(--sp-xxl) 0;
}
.static-page h1 {
    font-size: 36px;
    font-weight: 500;
    color: var(--ink);
    letter-spacing: -0.36px;
    margin-bottom: var(--sp-lg);
}
.static-page h2 {
    font-size: 22px;
    font-weight: 500;
    color: var(--ink);
    margin: var(--sp-lg) 0 var(--sp-xs);
}
.static-page p,
.static-page li {
    font-size: 14px;
    color: var(--body-color);
    line-height: 1.8;
    margin-bottom: var(--sp-xs);
}
.static-page ul { margin-left: var(--sp-sm); list-style: disc; }
.static-page a { color: var(--ink); border-bottom: 1px solid var(--hairline); }
.updated-note {
    font-size: 12px;
    color: var(--muted);
    margin-bottom: var(--sp-md);
}

/* ===== FOOTER ===== */
.footer-dark {
    background: var(--canvas);
    border-top: 1px solid var(--hairline);
    padding-top: var(--sp-xl);
}
.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--sp-md);
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr 1fr;
    gap: var(--sp-md);
    padding-bottom: var(--sp-xl);
}
.footer-brand {
    font-size: 18px;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.36px;
    margin-bottom: var(--sp-xs);
}
.footer-brand span { color: var(--primary); }
.footer-tagline {
    font-size: 13px;
    color: var(--body-color);
    line-height: 1.6;
}
.footer-col-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.1px;
    color: var(--muted);
    margin-bottom: var(--sp-sm);
}
.footer-col ul li {
    margin-bottom: var(--sp-xxs);
}
.footer-col ul li a {
    font-size: 13px;
    color: var(--body-color);
}
.footer-col ul li a:hover { color: var(--ink); }
.footer-col address p {
    font-size: 13px;
    color: var(--body-color);
    line-height: 1.7;
}
.footer-col address a { color: var(--body-color); }
.footer-col address a:hover { color: var(--ink); }
.footer-bottom {
    border-top: 1px solid var(--hairline);
    padding: var(--sp-md) var(--sp-md);
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--sp-xs);
}
.footer-bottom p {
    font-size: 12px;
    color: var(--muted);
}
.footer-bottom a { color: var(--muted); }
.footer-bottom a:hover { color: var(--ink); }

/* ===== COOKIE BANNER ===== */
#cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: var(--canvas-elevated);
    border-top: 1px solid var(--hairline);
    padding: var(--sp-sm) var(--sp-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-md);
    flex-wrap: wrap;
}
#cookie-banner p {
    font-size: 13px;
    color: var(--body-color);
    line-height: 1.5;
    flex: 1;
}
#cookie-banner a { color: var(--ink); text-decoration: underline; }
.cookie-actions {
    display: flex;
    gap: var(--sp-xs);
    flex-shrink: 0;
}
.btn-cookie-accept {
    background: var(--primary);
    color: var(--on-primary);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.1px;
    padding: 10px 20px;
    border: none;
    border-radius: 0;
    cursor: pointer;
}
.btn-cookie-reject {
    background: transparent;
    color: var(--body-color);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.1px;
    padding: 10px 20px;
    border: 1px solid var(--hairline);
    border-radius: 0;
    cursor: pointer;
}
.btn-cookie-reject:hover { color: var(--ink); border-color: #555; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .articles-grid { grid-template-columns: repeat(2, 1fr); }
    .specs-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: repeat(2, 1fr); }
    .article-layout { grid-template-columns: 1fr; }
    .article-sidebar { position: static; }
    .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-menu { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--canvas); border-bottom: 1px solid var(--hairline); padding: var(--sp-sm) var(--sp-md); gap: var(--sp-xs); }
    .nav-menu.is-open { display: flex; }
    .nav-hamburger { display: flex; }
    .hero-band { height: 420px; }
    .hero-content h1 { font-size: 32px; }
    .section-title { font-size: 26px; }
    .articles-grid { grid-template-columns: 1fr; }
    .specs-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .article-hero { height: 280px; }
    .article-hero-content h1 { font-size: 28px; }
    #cookie-banner { flex-direction: column; align-items: flex-start; }
}