@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&family=DM+Mono:wght@400;500&display=swap');

/* ── Variables ── */
:root {
  --orange: #FF8C00;
  --orange-dark: #D97700;
  --orange-subtle: rgba(255,140,0,0.08);
  --navy: #1a2a5e;
  --navy-dark: #0f1a3e;
  --navy-light: #243580;
  --ink: #1c1c1c;
  --ink-muted: #555;
  --ink-faint: #999;
  --surface: #fafaf8;
  --surface-raised: #ffffff;
  --border: #e8e4de;
  --border-strong: #d0c8be;
  --font-sans: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;
  --radius: 6px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10), 0 2px 6px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12), 0 4px 12px rgba(0,0,0,0.06);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--surface);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--orange); text-decoration: none; }
a:hover { color: var(--orange-dark); }

/* ── Layout ── */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 2rem;
}
.container--narrow {
  max-width: 740px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Header / Nav ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,250,248,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.nav__logo {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.nav__logo span {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--orange);
  font-weight: 500;
}
.nav__links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}
.nav__links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink-muted);
  transition: color 0.15s;
  letter-spacing: 0.01em;
}
.nav__links a:hover,
.nav__links a.active {
  color: var(--ink);
}

/* ── Hero ── */
.hero {
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -80px; right: -120px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(255,140,0,0.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--orange);
  letter-spacing: 0.10em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.hero__eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px; height: 2px;
  background: var(--orange);
}
.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--navy);
  margin-bottom: 1.5rem;
  max-width: 680px;
}
.hero__title strong {
  font-weight: 600;
  color: var(--navy-dark);
}
.hero__lead {
  font-size: 1.1rem;
  color: var(--ink-muted);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}
.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  border: none;
  text-decoration: none;
}
.btn--primary {
  background: var(--orange);
  color: white;
  box-shadow: 0 2px 8px rgba(255,140,0,0.35);
}
.btn--primary:hover {
  background: var(--orange-dark);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(255,140,0,0.4);
}
.btn--ghost {
  background: transparent;
  color: var(--ink-muted);
  border: 1px solid var(--border-strong);
}
.btn--ghost:hover {
  background: var(--ink);
  color: white;
  border-color: var(--ink);
}

/* ── Section ── */
.section {
  padding: 4rem 0;
  border-top: 1px solid var(--border);
}
.section__header {
  margin-bottom: 2.5rem;
}
.section__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 0.5rem;
}
.section__title {
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--navy);
  letter-spacing: -0.02em;
}

/* ── Cards ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}
.card {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.75rem;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}
.card:hover {
  border-color: var(--orange);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card__icon {
  width: 40px; height: 40px;
  background: var(--orange-subtle);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.1rem;
  font-size: 1.2rem;
}
.card__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.4rem;
  letter-spacing: -0.01em;
}
.card__body {
  font-size: 0.9rem;
  color: var(--ink-muted);
  line-height: 1.6;
}
.card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 1rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--orange);
}
.card__link::after {
  content: '→';
  transition: transform 0.15s;
}
.card:hover .card__link::after {
  transform: translateX(3px);
}

/* ── Tool embed ── */
.tool-embed {
  background: var(--navy-dark);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.07);
}
.tool-embed__bar {
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  padding: 0.7rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.tool-embed__dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.tool-embed__dot:nth-child(1) { background: #ff5f57; }
.tool-embed__dot:nth-child(2) { background: #febc2e; }
.tool-embed__dot:nth-child(3) { background: #28c840; }
.tool-embed__url {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
  margin-left: 0.5rem;
}
.tool-embed iframe {
  width: 100%;
  height: 560px;
  border: none;
  display: block;
}

/* ── Article list ── */
.article-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.article-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  transition: all 0.15s;
}
.article-item:last-child { border-bottom: none; }
.article-item:hover .article-item__title { color: var(--orange); }
.article-item__title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink);
  transition: color 0.15s;
  letter-spacing: -0.01em;
}
.article-item__meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── About strip ── */
.about-strip {
  background: var(--navy-dark);
  color: white;
  padding: 4rem 0;
  position: relative;
  overflow: hidden;
}
.about-strip::before {
  content: '';
  position: absolute;
  bottom: -100px; left: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(255,140,0,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.about-strip .section__label { color: rgba(255,140,0,0.9); }
.about-strip .section__title { color: white; }
.about-strip p {
  color: rgba(255,255,255,0.65);
  font-size: 0.95rem;
  line-height: 1.75;
  max-width: 600px;
  margin-top: 0.75rem;
}
.about-strip .btn--ghost {
  margin-top: 1.75rem;
  color: rgba(255,255,255,0.7);
  border-color: rgba(255,255,255,0.2);
}
.about-strip .btn--ghost:hover {
  background: rgba(255,255,255,0.1);
  color: white;
  border-color: rgba(255,255,255,0.4);
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer__copy {
  font-size: 0.82rem;
  color: var(--ink-faint);
}
.footer__copy strong {
  color: var(--ink-muted);
  font-weight: 500;
}
.footer__links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}
.footer__links a {
  font-size: 0.82rem;
  color: var(--ink-faint);
  transition: color 0.15s;
}
.footer__links a:hover { color: var(--orange); }

/* ── Article / post layout ── */
.post-header {
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
}
.post-header__tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 0.75rem;
}
.post-header__title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 400;
  color: var(--navy);
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 1rem;
}
.post-header__meta {
  font-size: 0.85rem;
  color: var(--ink-faint);
  font-family: var(--font-mono);
}
.post-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink);
}
.post-content h2 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--navy);
  margin: 2.5rem 0 0.75rem;
  letter-spacing: -0.02em;
}
.post-content h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
  margin: 2rem 0 0.5rem;
}
.post-content p { margin-bottom: 1.25rem; }
.post-content ul, .post-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}
.post-content li { margin-bottom: 0.35rem; }
.post-content code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--orange-subtle);
  color: var(--navy);
  padding: 0.1em 0.4em;
  border-radius: 3px;
}
.post-content pre {
  background: var(--navy-dark);
  color: rgba(255,255,255,0.85);
  padding: 1.25rem 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
}
.post-content pre code {
  background: none;
  color: inherit;
  padding: 0;
}
.post-content blockquote {
  border-left: 3px solid var(--orange);
  padding: 0.5rem 1.25rem;
  margin: 1.5rem 0;
  color: var(--ink-muted);
  font-style: italic;
}
.post-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1.5rem 0;
}
.post-content th {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  border-bottom: 2px solid var(--border-strong);
  padding: 0.6rem 0.75rem;
  text-align: left;
}
.post-content td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
  color: var(--ink);
}
.post-content tr:last-child td { border-bottom: none; }

/* ── Utilities ── */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .container, .container--narrow { padding: 0 1.25rem; }
  .nav__links { display: none; }
  .hero { padding: 3rem 0 2.5rem; }
  .card-grid { grid-template-columns: 1fr; }
  .article-item { flex-direction: column; gap: 0.25rem; }
  .article-item__meta { font-size: 0.75rem; }
  .tool-embed iframe { height: 400px; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}