: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;
  --semantic-success: #1f8a65;
  --semantic-error: #cf2d56;
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 9999px;
}

*, *::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: 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);
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  display: flex;
  align-items: center;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.nav-logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.3px;
  flex-shrink: 0;
}

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

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 4px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
}

.nav-link:hover,
.nav-link--active {
  color: var(--ink);
  background: var(--surface-strong);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

/* HERO */
.hero {
  padding: 80px 0 64px;
  background: var(--canvas);
}

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

.hero-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--surface-strong);
  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);
  max-width: 720px;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 18px;
  color: var(--body);
  line-height: 1.5;
  max-width: 520px;
  margin-bottom: 0;
}

/* SECTION HEADINGS */
.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;
  line-height: 1.2;
  letter-spacing: -0.72px;
  color: var(--ink);
  margin-bottom: 16px;
}

.section-sub {
  font-size: 16px;
  color: var(--body);
  line-height: 1.5;
  max-width: 540px;
}

/* ARTICLES GRID */
.articles-section {
  padding: 80px 0;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.article-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  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;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.article-card__tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--surface-strong);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  align-self: flex-start;
}

.article-card__title {
  font-size: 20px;
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.2px;
  color: var(--ink);
}

.article-card__excerpt {
  font-size: 14px;
  color: var(--body);
  line-height: 1.5;
  flex: 1;
}

.article-card__meta {
  font-size: 13px;
  color: var(--muted);
  border-top: 1px solid var(--hairline-soft);
  padding-top: 12px;
  margin-top: auto;
}

.article-card__link {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  margin-top: 8px;
}

/* DIVIDER */
.divider {
  height: 1px;
  background: var(--hairline);
  margin: 0;
}

/* ARTICLE PAGE */
.article-page {
  padding: 64px 0 80px;
}

.article-page__inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

.article-header {
  margin-bottom: 40px;
}

.article-header__tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--surface-strong);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}

.article-header__title {
  font-size: 42px;
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -1px;
  color: var(--ink);
  margin-bottom: 16px;
}

.article-header__meta {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 32px;
}

.article-header__img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--hairline);
}

.article-body {
  margin-top: 40px;
}

.article-body h2 {
  font-size: 28px;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.5px;
  color: var(--ink);
  margin: 48px 0 16px;
}

.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink);
  margin: 32px 0 12px;
}

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

.article-body ul,
.article-body ol {
  margin: 0 0 20px 24px;
}

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

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

.article-body a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.info-box {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin: 32px 0;
}

.info-box__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.info-box p {
  margin-bottom: 0;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 32px 0;
  font-size: 14px;
}

.comparison-table th {
  text-align: left;
  font-weight: 600;
  color: var(--ink);
  padding: 12px 16px;
  border-bottom: 2px solid var(--hairline-strong);
  background: var(--surface-card);
}

.comparison-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--hairline-soft);
  color: var(--body);
  vertical-align: top;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.article-img-caption {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-top: 8px;
  font-style: italic;
}

.article-related {
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--hairline);
}

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

.contact-inner {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 24px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 40px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

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

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

.form-group textarea {
  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);
}

.form-error-msg {
  font-size: 13px;
  color: var(--semantic-error);
  display: none;
}

.form-error-msg.visible {
  display: block;
}

.form-submit-msg {
  display: none;
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  font-size: 16px;
  color: var(--semantic-success);
  font-weight: 500;
  margin-top: 8px;
}

.form-submit-msg.visible {
  display: block;
}

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

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

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

.btn-secondary {
  background: var(--surface-card);
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
  font-family: inherit;
}

.btn-secondary:hover {
  background: var(--surface-strong);
}

/* PAGES */
.page-section {
  padding: 64px 0 80px;
}

.page-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

.page-title {
  font-size: 42px;
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -1px;
  color: var(--ink);
  margin-bottom: 12px;
}

.page-meta {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--hairline);
}

.page-body h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--ink);
  margin: 40px 0 12px;
}

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

.page-body ul {
  margin: 0 0 16px 24px;
}

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

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

/* FOOTER */
.site-footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 64px 24px 48px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 2fr;
  gap: 48px;
}

.footer-brand {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  display: block;
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: 14px;
  color: var(--body);
  line-height: 1.6;
}

.footer-heading {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

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

.footer-bottom {
  max-width: 1200px;
  margin: 48px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--hairline-soft);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.footer-bottom a {
  color: var(--muted);
}

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

/* COOKIE BANNER */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--ink);
  color: var(--canvas);
  padding: 16px 24px;
  z-index: 200;
  display: none;
}

.cookie-banner.visible {
  display: block;
}

.cookie-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-inner p {
  font-size: 14px;
  color: var(--canvas);
  line-height: 1.5;
}

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

.cookie-actions {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}

#cookie-accept {
  background: var(--primary);
  color: var(--on-primary);
}

#cookie-accept:hover {
  background: var(--primary-active);
  color: var(--on-primary);
}

#cookie-reject {
  background: transparent;
  color: var(--canvas);
  border-color: rgba(247, 247, 244, 0.4);
}

#cookie-reject:hover {
  background: rgba(247, 247, 244, 0.1);
}

/* SCHEMA ORG helpers */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .hero h1 {
    font-size: 42px;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    flex-direction: column;
    padding: 12px 24px;
    gap: 4px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: 10px 12px;
  }

  .articles-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 48px 0 40px;
  }

  .hero h1 {
    font-size: 32px;
    letter-spacing: -0.8px;
  }

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

  .section-title {
    font-size: 28px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .article-header__title {
    font-size: 30px;
  }

  .article-header__img {
    height: 220px;
  }

  .cookie-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .comparison-table {
    font-size: 13px;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 8px 10px;
  }
}

@media (max-width: 640px) {
  .page-title {
    font-size: 28px;
  }

  .contact-section {
    padding: 48px 0;
  }
}