@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

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

:root {
  --canvas: #f7f7f4;
  --canvas-soft: #fafaf7;
  --ink: #26251e;
  --body: #5a5852;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --primary: #f54e00;
  --primary-active: #d04200;
  --on-primary: #ffffff;
  --surface-card: #ffffff;
  --surface-strong: #e6e5e0;
  --hairline: #e6e5e0;
  --hairline-soft: #efeee8;
  --hairline-strong: #cfcdc4;
  --success: #1f8a65;
  --error: #cf2d56;
  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;
  --r-pill: 9999px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background-color: var(--canvas);
  color: var(--body);
  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;
}

.section { padding: 80px 0; }
.section--alt { background-color: var(--canvas-soft); }

h1, h2, h3, h4 {
  color: var(--ink);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.5px;
}

h1 { font-size: clamp(36px, 5vw, 64px); letter-spacing: -1.5px; line-height: 1.1; }
h2 { font-size: 36px; letter-spacing: -0.72px; }
h3 { font-size: 26px; letter-spacing: -0.325px; line-height: 1.25; }
h4 { font-size: 22px; letter-spacing: -0.11px; line-height: 1.3; }

p { color: var(--body); line-height: 1.6; }

.text-muted { color: var(--muted); }
.text-ink { color: var(--ink); }
.text-sm { font-size: 14px; }
.text-xs { font-size: 13px; }

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

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

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

.site-nav__logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.3px;
  white-space: nowrap;
  flex-shrink: 0;
}

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

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.site-nav__links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--body);
  line-height: 1.4;
  transition: color 0.15s;
}

.site-nav__links a:hover, .site-nav__links a.active { color: var(--ink); }

.site-nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.site-nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all 0.2s;
}

.site-nav__mobile {
  display: none;
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  padding: 16px 24px;
}

.site-nav__mobile.open { display: block; }

.site-nav__mobile ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.site-nav__mobile ul a {
  font-size: 15px;
  font-weight: 500;
  color: var(--body);
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  border: none;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--primary);
  color: var(--on-primary);
  padding: 10px 18px;
  height: 40px;
  border-radius: var(--r-md);
}

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

.btn--secondary {
  background: var(--surface-card);
  color: var(--ink);
  padding: 10px 18px;
  height: 40px;
  border-radius: var(--r-md);
  border: 1px solid var(--hairline-strong);
}

.btn--secondary:hover { border-color: var(--ink); color: var(--ink); }

.btn--dark {
  background: var(--ink);
  color: var(--canvas);
  padding: 12px 20px;
  height: 44px;
  border-radius: var(--r-md);
}

.btn--dark:hover { background: #3a3930; color: var(--canvas); }

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

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

.hero__label { margin-bottom: 16px; }

.hero__headline {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--ink);
  max-width: 820px;
  margin-bottom: 24px;
}

.hero__sub {
  font-size: 18px;
  color: var(--body);
  max-width: 540px;
  line-height: 1.55;
  margin-bottom: 36px;
}

.hero__img {
  margin-top: 56px;
  border-radius: var(--r-lg);
  border: 1px solid var(--hairline);
  overflow: hidden;
  max-height: 480px;
}

.hero__img img {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

/* CARDS */
.card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: border-color 0.15s;
}

.card:hover { border-color: var(--hairline-strong); }

.card__img { height: 200px; overflow: hidden; }
.card__img img { width: 100%; height: 100%; object-fit: cover; }

.card__body { padding: 24px; }

.card__label { margin-bottom: 8px; }
.card__title { font-size: 20px; font-weight: 500; color: var(--ink); margin-bottom: 10px; line-height: 1.3; letter-spacing: -0.2px; }
.card__title a { color: var(--ink); }
.card__title a:hover { color: var(--primary); }
.card__excerpt { font-size: 15px; color: var(--body); line-height: 1.55; margin-bottom: 16px; }
.card__meta { font-size: 13px; color: var(--muted); }

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

.cards-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

/* ARTICLE */
.article-hero { padding: 56px 0 48px; }
.article-hero__label { margin-bottom: 12px; }
.article-hero__title { font-size: clamp(32px, 4vw, 52px); letter-spacing: -1.2px; line-height: 1.08; max-width: 800px; margin-bottom: 20px; }
.article-hero__meta { font-size: 14px; color: var(--muted); }
.article-hero__img { margin-top: 40px; border-radius: var(--r-lg); border: 1px solid var(--hairline); overflow: hidden; }
.article-hero__img img { width: 100%; max-height: 460px; object-fit: cover; }

.article-body { max-width: 740px; }
.article-body h2 { font-size: 28px; margin: 40px 0 16px; letter-spacing: -0.5px; }
.article-body h3 { font-size: 22px; margin: 32px 0 12px; }
.article-body p { margin-bottom: 18px; font-size: 16px; line-height: 1.7; }
.article-body ul, .article-body ol { padding-left: 20px; margin-bottom: 18px; }
.article-body li { margin-bottom: 8px; font-size: 16px; line-height: 1.6; }
.article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-body strong { font-weight: 600; color: var(--ink); }

.article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 56px; align-items: start; }
.article-sidebar { position: sticky; top: 88px; }

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

.infobox__title { font-size: 13px; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.infobox ul { list-style: none; padding: 0; }
.infobox ul li { font-size: 14px; color: var(--body); padding: 8px 0; border-bottom: 1px solid var(--hairline-soft); }
.infobox ul li:last-child { border-bottom: none; padding-bottom: 0; }

/* BADGE */
.badge {
  display: inline-block;
  background: var(--surface-strong);
  color: var(--ink);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  border-radius: var(--r-pill);
  padding: 4px 10px;
}

.badge--green { background: #d4ede3; color: #1a6e50; }
.badge--orange { background: #fde8dc; color: #b03a00; }

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

/* FORM */
.form-wrap {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 40px;
  max-width: 560px;
}

.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(--r-md);
  padding: 12px 16px;
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  transition: border-color 0.15s;
  outline: none;
  height: 44px;
}

.form-group textarea { height: auto; min-height: 120px; resize: vertical; }
.form-group input:focus, .form-group textarea:focus { border-color: var(--ink); }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--muted-soft); }

.form-msg {
  padding: 12px 16px;
  border-radius: var(--r-md);
  font-size: 14px;
  margin-top: 12px;
  display: none;
}

.form-msg--success { background: #d4ede3; color: #1a6e50; display: block; }
.form-msg--error { background: #fde8dc; color: var(--error); display: block; }
.form-msg--loading { background: var(--surface-strong); color: var(--muted); display: block; }

/* COOKIE BANNER */
.cookie-banner {
  position: fixed;
  bottom: 24px;
  left: 24px;
  right: 24px;
  max-width: 560px;
  background: var(--ink);
  color: var(--canvas);
  border-radius: var(--r-lg);
  padding: 20px 24px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.12);
}

.cookie-banner__text { font-size: 14px; line-height: 1.5; flex: 1; }
.cookie-banner__text a { color: var(--canvas); text-decoration: underline; text-underline-offset: 3px; }
.cookie-banner__actions { display: flex; gap: 8px; flex-shrink: 0; }

.cookie-btn {
  font-size: 13px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--r-md);
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.cookie-btn--accept { background: var(--primary); color: var(--on-primary); }
.cookie-btn--reject { background: transparent; color: var(--canvas); border: 1px solid rgba(255,255,255,0.25); }

/* FOOTER */
.site-footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 56px 0 40px;
}

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

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.site-footer__brand-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.3px;
  margin-bottom: 10px;
}

.site-footer__brand-name span { color: var(--primary); }
.site-footer__brand-desc { font-size: 14px; color: var(--muted); line-height: 1.55; max-width: 280px; }

.site-footer__col-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.4px;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.site-footer__links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.site-footer__links a { font-size: 14px; color: var(--body); }
.site-footer__links a:hover { color: var(--ink); }

.site-footer__bottom {
  border-top: 1px solid var(--hairline);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.site-footer__copy { font-size: 13px; color: var(--muted); }

/* PAGE HEADER */
.page-header {
  padding: 56px 0 48px;
  border-bottom: 1px solid var(--hairline);
}

.page-header h1 { margin-bottom: 12px; }
.page-header p { font-size: 17px; color: var(--body); max-width: 580px; }

/* ABOUT PAGE */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.about-img { border-radius: var(--r-lg); border: 1px solid var(--hairline); overflow: hidden; }
.about-img img { width: 100%; height: 360px; object-fit: cover; }

/* RELATED ARTICLES */
.related { padding: 48px 0; border-top: 1px solid var(--hairline); margin-top: 56px; }
.related__title { font-size: 22px; margin-bottom: 28px; letter-spacing: -0.3px; }

/* PROSE */
.prose { max-width: 720px; }
.prose h2 { font-size: 26px; margin: 36px 0 14px; }
.prose h3 { font-size: 20px; margin: 28px 0 10px; }
.prose p { margin-bottom: 16px; font-size: 16px; line-height: 1.7; }
.prose ul, .prose ol { padding-left: 22px; margin-bottom: 16px; }
.prose li { margin-bottom: 6px; font-size: 16px; line-height: 1.6; }

/* STAT ROW */
.stat-row { display: flex; gap: 40px; flex-wrap: wrap; }
.stat-item { }
.stat-item__val { font-size: 32px; color: var(--ink); font-weight: 400; letter-spacing: -1px; line-height: 1; margin-bottom: 4px; }
.stat-item__label { font-size: 13px; color: var(--muted); }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .site-nav__links { display: none; }
  .site-nav__hamburger { display: flex; }
  h2 { font-size: 28px; }
  h3 { font-size: 22px; }
  .hero__headline { letter-spacing: -1px; }
  .section { padding: 56px 0; }
  .cards-grid { grid-template-columns: 1fr; }
  .cards-grid--2 { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr; gap: 28px; }
  .cookie-banner { flex-direction: column; align-items: flex-start; bottom: 16px; left: 16px; right: 16px; }
  .form-wrap { padding: 24px; }
  .article-layout { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero { padding: 48px 0 40px; }
  .hero__img img { height: 220px; }
  .card__img { height: 160px; }
}