:root {
  --bg: #f4f7fb;
  --panel: #ffffff;
  --panel-soft: #f8fbff;
  --text: #0d1726;
  --muted: #5f6c7b;
  --accent: #0f172a;
  --accent-hover: #1e293b;
  --accent-soft: #e9eef5;
  --border: #dfe6ee;
  --border-strong: #cfd8e3;
  --radius: 22px;
  --shadow: 0 12px 34px rgba(16, 24, 40, 0.07);
  --shadow-soft: 0 8px 24px rgba(15, 23, 42, 0.05);
  --max: 1200px;
}

/* =========================
   RESET / GLOBAL
========================= */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  line-height: 1.6;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

.wrap {
  width: min(100% - 24px, var(--max));
  margin: 0 auto;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

/* =========================
   BUTTONS
========================= */
.button,
.button-secondary,
.header-btn,
.card-btn,
.primary-cta,
.secondary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 14px;
  font-weight: 700;
  transition: 0.2s ease;
  border: 1px solid transparent;
  cursor: pointer;
}

.button,
.header-btn,
.card-btn,
.primary-cta {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.button:hover,
.header-btn:hover,
.card-btn:hover,
.primary-cta:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-1px);
}

.button-secondary,
.secondary-cta {
  background: #ffffff;
  color: var(--text);
  border-color: var(--border);
}

.button-secondary:hover,
.secondary-cta:hover {
  background: var(--panel-soft);
}

/* =========================
   HEADER / NAV / SIDEBAR
========================= */
.site-header {
  position: relative !important;
  top: auto !important;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  z-index: 1 !important;
  width: 100%;
}

.header-shell {
  padding: 12px 0 12px;
}

.header-top {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: 14px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.menu-toggle {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: #ffffff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 0 11px;
  cursor: pointer;
  flex-shrink: 0;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: var(--text);
}

.shop-label {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  background: transparent;
  border: none;
  padding: 0;
  margin: 0;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
}

.brand-mark {
  display: none;
}

.header-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  width: 132px;
  flex-shrink: 0;
}

.header-btn {
  width: 132px;
  min-width: 132px;
  min-height: 38px;
  padding: 0 12px;
  font-size: 0.9rem;
  line-height: 1;
  text-align: center;
  border-radius: 12px;
  box-shadow: none;
}

.cart-btn {
  gap: 6px;
}

.cart-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  line-height: 1;
}

.top-search-wrap {
  margin-top: 12px;
}

.search-form {
  display: block;
}

.search-form input,
.search-input {
  width: 100%;
  min-height: 48px;
  padding: 0 16px;
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  background: #ffffff;
  font-size: 1rem;
  color: var(--text);
}

.search-form input:focus,
.search-input:focus,
.product-select:focus,
.calc-input:focus,
.calc-select:focus {
  outline: none;
  border-color: #b9c7da;
  box-shadow: 0 0 0 4px rgba(15, 23, 42, 0.06);
}

.search-form button {
  display: none;
}

/* FULL WIDTH BANNER */.header-hero {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 5;
  background: 
    radial-gradient(circle at center, rgba(0,0,0,0.0) 60%, rgba(0,0,0,0.4)),
    url('images/banner1.png') center center / contain no-repeat;
  background-color: #0b0f1a;
}


.sidebar {
  position: fixed;
  top: 0;
  left: -320px;
  width: 290px;
  max-width: calc(100vw - 32px);
  height: 100%;
  background: #ffffff;
  border-right: 1px solid var(--border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  z-index: 1100;
  padding: 22px 18px 30px;
  overflow-y: auto;
  transition: left 0.28s ease;
}

.sidebar.open {
  left: 0;
}

.sidebar-header {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 18px;
}

.sidebar h4 {
  margin: 18px 0 8px;
  font-size: 0.96rem;
  color: var(--text);
}

.sidebar a {
  display: block;
  padding: 10px 0;
  color: var(--muted);
  font-weight: 700;
  border-bottom: 1px solid rgba(223, 230, 238, 0.45);
}

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

.sidebar hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 16px 0;
}

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  z-index: 1098;
  display: none;
}

.overlay.show {
  display: block;
}

/* =========================
   LAYOUT
========================= */
.home-shell,
.page-shell,
.product-shell {
  padding: 28px 0 60px;
}

.section {
  padding-top: 24px;
}

.section-card,
.page-header,
.product-card,
.stack-card,
.disclaimer-card,
.legal-card,
.calc-card,
.product-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* =========================
   HERO / HOME
========================= */
.hero-section {
  padding: 34px 0 18px;
}

.hero-card {
  background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
  border: 1px solid var(--border);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 42px 36px;
}

.hero-copy {
  max-width: 760px;
}

.eyebrow,
.hero-tag,
.product-kicker {
  display: inline-block;
  margin-bottom: 14px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid #d8e1ec;
  color: #475569;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-section h1,
.hero-copy h1 {
  margin: 0 0 16px;
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  color: var(--text);
}

.hero-section p,
.hero-copy p {
  margin: 0;
  max-width: 720px;
  font-size: 1.05rem;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.section-card {
  padding: 30px;
}

.section-card h2,
.section-heading h2 {
  margin: 0 0 10px;
  font-size: clamp(1.9rem, 5vw, 2.8rem);
  color: var(--text);
}

.section-card p,
.section-heading p {
  margin: 0;
  color: var(--muted);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 24px;
}

/* Featured product */
.featured-product-card {
  padding: 30px;
}

.featured-product-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 26px;
  align-items: center;
}

.featured-product-image {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  border: 1px solid var(--border);
  border-radius: 22px;
  min-height: 280px;
  padding: 24px;
}

.featured-product-image img {
  max-width: 100%;
  width: 220px;
  height: auto;
  object-fit: contain;
}

.featured-product-copy h2 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--text);
}

.featured-product-copy p {
  color: var(--muted);
  margin: 0 0 16px;
}

/* Promo */
.promo-card {
  padding: 30px;
}

.promo-panel {
  margin-top: 20px;
  padding: 20px;
  border-radius: 18px;
  background: var(--accent-soft);
  border: 1px solid #d8e1ec;
}

.promo-panel strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.1rem;
  color: var(--text);
}

.promo-panel span {
  color: var(--muted);
}

/* Articles */
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 22px;
}

.article-card {
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 22px;
  box-shadow: var(--shadow-soft);
}

.article-card h3 {
  margin: 0 0 12px;
  font-size: 1.3rem;
  color: var(--text);
}

.article-card p {
  margin: 0 0 18px;
  color: var(--muted);
}

.article-card .card-btn {
  min-height: 46px;
  padding: 0 16px;
}

/* =========================
   CATEGORY / PRODUCT / LEGAL
========================= */
.page-header {
  padding: 30px;
  margin-bottom: 22px;
  text-align: center;
}

.page-header img {
  max-width: 220px;
  margin: 0 auto 18px;
}

.page-header h1 {
  margin: 0 0 10px;
  font-size: clamp(2rem, 6vw, 3.8rem);
  line-height: 1;
  letter-spacing: -0.03em;
}

.page-header p {
  max-width: 760px;
  margin: 0 auto;
  color: var(--muted);
}

.product-list {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.product-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  padding: 18px;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.product-item:last-child {
  border-bottom: 0;
}

.product-item img {
  width: 100px;
  height: 100px;
  object-fit: contain;
  border-radius: 16px;
  background: #ffffff;
}

.product-item h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.product-item h3 a {
  color: var(--text);
}

.product-item p {
  margin: 0 0 10px;
  color: var(--muted);
}

.product-item .mini-link {
  color: var(--accent);
  font-weight: 700;
}

.product-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  align-items: stretch;
}

.product-image-panel {
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 420px;
  border-radius: var(--radius);
  background: radial-gradient(circle at top right, rgba(15, 23, 42, 0.05), transparent 20%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.product-image-panel img {
  width: 100%;
  max-width: 300px;
  height: auto;
  object-fit: contain;
}

.product-info {
  padding: 30px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.product-info h1 {
  margin: 0 0 12px;
  font-size: clamp(2.2rem, 6vw, 4rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.product-subhead {
  font-size: 1.04rem;
  color: var(--muted);
  margin-bottom: 18px;
}

.quick-points {
  margin: 0 0 24px;
  padding-left: 18px;
  color: var(--muted);
}

.quick-points li + li {
  margin-top: 8px;
}

.buy-box {
  padding: 22px;
  border-radius: 18px;
  background: var(--panel-soft);
  border: 1px solid var(--border);
}

.field-label {
  display: block;
  margin: 14px 0 8px;
  font-weight: 700;
}

.product-select,
.calc-input,
.calc-select {
  width: 100%;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--border-strong);
  background: #ffffff;
  font-size: 1rem;
}

.price-wrap {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.product-price {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}

.buy-actions {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.micro-disclaimer {
  font-size: 0.82rem;
  color: #6b7280;
  margin-top: 10px;
}

.calc-cta {
  margin-top: 18px;
  padding: 16px;
  border-radius: 14px;
  background: #f5f7fa;
  border: 1px solid #d9e2ec;
  font-size: 0.95rem;
  color: #475569;
}

.calc-cta a {
  color: var(--accent);
  font-weight: 700;
}

.stack-note {
  margin-top: 14px;
  font-size: 0.94rem;
  color: var(--muted);
}

.section-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 22px;
}

.product-card,
.disclaimer-card,
.legal-card,
.calc-card {
  padding: 26px;
}

.product-card h2,
.disclaimer-card h2,
.legal-card h2,
.calc-card h2 {
  margin: 0 0 12px;
}

.product-card p,
.product-card li,
.disclaimer-card p,
.legal-card p,
.legal-card li,
.calc-card p,
.calc-card li {
  color: var(--muted);
}

.product-card ul,
.legal-card ul,
.calc-card ul {
  padding-left: 18px;
}

.stack-section {
  margin-top: 22px;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.stack-card {
  padding: 22px;
}

.stack-card img {
  width: 100%;
  max-width: 150px;
  height: auto;
  margin: 0 auto 14px;
  object-fit: contain;
}

.stack-card h3 {
  text-align: center;
  margin: 0 0 8px;
}

.stack-card p {
  text-align: center;
  margin: 0 0 16px;
  color: var(--muted);
}

.notice-panel {
  margin-top: 18px;
  padding: 18px;
  border-radius: 18px;
  background: var(--accent-soft);
  border: 1px solid #d8e1ec;
}

.notice-panel strong {
  display: block;
  margin-bottom: 6px;
}

.notice-panel span {
  color: var(--muted);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field-group.full {
  grid-column: 1 / -1;
}

.inline-row {
  display: grid;
  grid-template-columns: 1fr 140px;
  gap: 12px;
}

.result-primary {
  padding: 20px;
  border-radius: 18px;
  background: var(--accent-soft);
  border: 1px solid #d8e1ec;
  margin-bottom: 16px;
}

.result-primary strong {
  display: block;
  font-size: clamp(2rem, 7vw, 3rem);
  line-height: 1;
  margin: 8px 0 10px;
}

.result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.result-box {
  padding: 16px;
  border-radius: 16px;
  background: var(--panel-soft);
  border: 1px solid var(--border);
}

.result-box span {
  display: block;
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 5px;
}

.warning-note {
  margin-top: 12px;
  padding: 16px;
  border-radius: 16px;
  background: #fff4e8;
  border: 1px solid #ffd8aa;
  color: #8a5a18;
  display: none;
}

.legal-card h1 {
  margin: 0 0 12px;
  font-size: clamp(2.1rem, 6vw, 3.8rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.legal-meta {
  font-size: 0.92rem;
  color: var(--muted);
  margin-bottom: 20px;
}

/* =========================
   FOOTER
========================= */
.site-footer {
  background: #0f172a;
  color: #c9d4e5;
  padding: 42px 0;
  margin-top: 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 28px;
}

.site-footer h4 {
  margin: 0 0 12px;
  color: #ffffff;
  font-size: 1rem;
}

.site-footer p,
.site-footer a {
  color: #c9d4e5;
  line-height: 1.8;
}

.site-footer a {
  display: block;
  margin-bottom: 4px;
}

.site-footer a:hover {
  color: #ffffff;
}

/* =========================
   HIDE OLD JUNK
========================= */
.topbar,
.utility-bar,
.utility-left,
.utility-right,
.utility-link,
.utility-button,
.homepage-topbar,
.homepage-brand,
.home-logo-hero,
.home-logo-card,
.home-hero-logo,
.hero-banner,
.hero-overlay,
.brand-mark {
  display: none !important;
}

/* =========================
   RESPONSIVE
========================= */
@media (min-width: 900px) {
  .header-top {
    grid-template-columns: 1fr auto;
  }

  .header-actions {
    width: 140px;
  }

  .header-btn {
    width: 140px;
    min-width: 140px;
  }

  .header-hero {
    height: 240px;
    background-position: center 42%;
  }

  .featured-product-grid {
    grid-template-columns: 280px 1fr;
  }

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

  .product-hero,
  .section-grid,
  .stack-grid,
  .calc-grid,
  .result-grid,
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 1.3fr 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .home-shell,
  .page-shell,
  .product-shell {
    padding-top: 20px;
    padding-bottom: 50px;
  }

  .header-top {
    grid-template-columns: 1fr auto;
    gap: 12px;
  }

  .header-left {
    gap: 12px;
  }

  .shop-label {
    font-size: 0.95rem;
  }

  .header-actions {
    width: 126px;
    gap: 8px;
  }

  .header-btn {
    width: 126px;
    min-width: 126px;
    min-height: 36px;
    font-size: 0.88rem;
    border-radius: 12px;
  }

  .header-hero {
    height: 132px;
    background-position: center 42%;
  }

  .hero-card {
    padding: 26px 18px;
    border-radius: 22px;
  }

  .hero-section h1,
  .hero-copy h1 {
    font-size: 2rem;
    line-height: 1.02;
    margin-bottom: 12px;
  }

  .hero-section p,
  .hero-copy p {
    font-size: 0.96rem;
    line-height: 1.5;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .primary-cta,
  .hero-actions .secondary-cta,
  .hero-actions .button,
  .hero-actions .button-secondary {
    width: 100%;
  }

  .section-card,
  .page-header,
  .product-card,
  .calc-card,
  .legal-card,
  .disclaimer-card,
  .product-info,
  .buy-box,
  .stack-card,
  .featured-product-card,
  .promo-card,
  .article-card {
    padding: 20px;
    border-radius: 18px;
  }

  .section-card h2,
  .section-heading h2,
  .featured-product-copy h2 {
    font-size: 2rem;
  }

  .featured-product-grid,
  .article-grid,
  .product-hero,
  .section-grid,
  .stack-grid,
  .calc-grid,
  .result-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .featured-product-image {
    min-height: 220px;
    padding: 18px;
  }

  .featured-product-image img {
    width: 180px;
  }

  .product-item {
    grid-template-columns: 82px 1fr;
    gap: 12px;
    padding: 14px;
  }

  .product-item img {
    width: 82px;
    height: 82px;
  }

  .product-image-panel {
    min-height: 240px;
    padding: 18px;
  }

  .product-image-panel img {
    max-width: 210px;
  }

  .buy-actions {
    flex-direction: column;
  }

  .buy-actions .button,
  .buy-actions .button-secondary {
    width: 100%;
  }

  .inline-row {
    grid-template-columns: 1fr;
  }

  .sidebar {
    width: 270px;
  }

  .site-footer {
    padding: 34px 0;
  }
}
.result-cta {
  margin-top: 20px;
  padding: 20px;
  border-radius: 18px;
  background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
  border: 1px solid var(--border);
  text-align: center;
}

.result-cta p {
  margin: 0 0 12px;
  font-weight: 600;
  color: var(--text);
}
.category-hero {
  padding: 50px 20px 10px;
  text-align: center;
}

.category-logo {
  width: 100%;
  max-width: 720px;
  margin: 0 auto 20px;
  display: block;
}

.category-intro {
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--muted);
}

/* GRID */
.category-grid .container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
  padding: 40px 20px 70px;
}

/* /* PRODUCT CARDS */
.product-card {
  background: #eef3fb;
  border: 1px solid #d6e2f3;
  border-radius: 16px;
  padding: 18px;
  text-align: center;
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 35px rgba(0, 0, 0, 0.12);
}

.product-card::before {
  content: "";
  display: block;
  height: 4px;
  background: #3b82f6;
  border-radius: 16px 16px 0 0;
  margin: -18px -18px 12px -18px;
}

.product-card h2 {
  font-size: 1.4rem;
  margin-bottom: 10px;
  color: #1e3a8a;
}

.product-card p {
  color: var(--muted);
  margin-bottom: 18px;
}

/* BUTTON */
.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  transition: all 0.25s ease;
}

.btn:hover {
  transform: scale(1.05);
  box-shadow: 0 0 15px rgba(37, 99, 235, 0.35);
}

/* CATEGORY VIALS */
.category-vials {
  width: 100%;
  max-width: 700px;
  margin: 30px auto 40px;
  display: block;
  filter: drop-shadow(0 10px 25px rgba(37, 99, 235, 0.20));
}

@media (max-width: 768px) {
  .category-vials {
    max-width: 85%;
  }
}

/* PROTOCOL FRAMEWORK */
.protocol-framework {
  margin-top: 40px;
}

.protocol-title {
  font-size: 1.6rem;
  margin: 30px 0 15px;
  text-align: center;
  color: #111;
}

.protocol-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 15px;
}

@media (min-width: 768px) {
  .protocol-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* PERFORMANCE HERO */
.performance-hero {
  display: block;
  width: 100%;
  max-width: 650px;
  margin: 30px auto 50px auto;
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}
.site-header {
  background: #fff;
  border-bottom: 1px solid #eee;
}

.topbar {
  max-width: 1100px;
  margin: auto;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-weight: 700;
  font-size: 1.2rem;
  text-decoration: none;
  color: #0d1726;
}

.nav a {
  margin-left: 18px;
  text-decoration: none;
  color: #444;
  font-weight: 500;
}