/* Justin Sleight — security.apple.com inspired palette */

:root {
  --bg-page: #f5f7ff;
  --bg-panel: #ffffff;
  --bg-hero-start: #001b3d;
  --bg-hero-end: #0a2f68;
  --bg-nav: rgba(3, 16, 38, 0.85);
  --border-soft: rgba(12, 32, 70, 0.08);
  --border-strong: rgba(12, 32, 70, 0.16);
  --fg-strong: #0a1730;
  --fg-body: #25324a;
  --fg-muted: #5a6781;
  --fg-invert: #f1f5ff;
  --fg-accent: #5da8ff;
  --fg-accent-strong: #7cc7ff;
  --max-width: 1200px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --shadow-soft: 0 24px 60px rgba(7, 20, 43, 0.18);
  --shadow-subtle: 0 12px 40px rgba(7, 20, 43, 0.12);
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg-page);
  color: var(--fg-body);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 80px;
}

.post-main {
  max-width: 760px;
  padding-top: 120px;
}

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

.post-header h1 {
  margin: 0 0 16px;
  font-size: clamp(32px, 4vw, 48px);
  color: var(--fg-strong);
  letter-spacing: -0.01em;
}

.post-meta {
  margin: 0;
  color: var(--fg-muted);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.post-body {
  display: grid;
  gap: 24px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--fg-body);
}

.post-body p {
  margin: 0;
}

.post-body h2 {
  margin: 32px 0 12px;
  font-size: 24px;
  color: var(--fg-strong);
}

.post-body h3 {
  margin: 16px 0 8px;
  font-size: 18px;
  color: var(--fg-body);
  font-weight: 600;
}

.post-body ul {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 8px;
}

.post-body ul ul {
  padding-left: 18px;
  margin-top: 8px;
}

.post-body table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-subtle);
  border: 1px solid var(--border-soft);
}

.post-body pre {
  background: rgba(2, 13, 32, 0.85);
  color: var(--fg-invert);
  padding: 18px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-subtle);
  font-family: var(--mono);
  font-size: 14px;
  overflow-x: auto;
}

.post-body code {
  font-family: var(--mono);
}

.post-body pre code {
  display: block;
  white-space: pre;
}

.post-body th,
.post-body td {
  padding: 16px;
  text-align: left;
  font-size: 15px;
}

.post-body thead th {
  background: rgba(10, 23, 48, 0.06);
  color: var(--fg-strong);
  font-weight: 600;
}

.post-body tbody tr:nth-child(odd) {
  background: rgba(12, 32, 70, 0.015);
}

.post-body tbody td {
  border-top: 1px solid var(--border-soft);
}

.post-body tbody tr:first-child td {
  border-top: none;
}

/* Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: var(--bg-nav);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--fg-invert);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand-mark {
  display: inline-block;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.8);
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(93, 168, 255, 0.15), rgba(124, 199, 255, 0.35));
  mix-blend-mode: screen;
  pointer-events: none;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.brand-word {
  font-size: 16px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.site-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0;
  margin: 0;
}

.site-nav a {
  color: inherit;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--fg-accent-strong);
}

.nav-cta {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.nav-cta:hover {
  border-color: rgba(255, 255, 255, 0.6);
}

.nav-toggle {
  display: none;
  font-family: var(--mono);
  font-size: 14px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: transparent;
  color: inherit;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
}

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex;
  }
  .site-nav ul {
    display: none;
    position: absolute;
    top: 72px;
    right: 24px;
    padding: 16px;
    background: rgba(1, 13, 30, 0.96);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-subtle);
    flex-direction: column;
    min-width: 200px;
  }
  .site-nav[aria-expanded="true"] ul {
    display: flex;
  }
}

/* Hero */
.hero {
  margin: 72px 0 56px;
  background: linear-gradient(135deg, var(--bg-hero-start), var(--bg-hero-end));
  color: var(--fg-invert);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 0;
  box-shadow: var(--shadow-soft);
}

.hero-col {
  padding: 48px;
}

.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(32px, 4vw, 54px);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.lede {
  margin: 0;
  font-size: 18px;
  line-height: 1.6;
  color: rgba(241, 245, 255, 0.85);
  max-width: 60ch;
}

.hero-cta {
  display: flex;
  gap: 14px;
  margin-top: 28px;
}

.btn {
  border-radius: 999px;
  padding: 12px 20px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn {
  background: rgba(255, 255, 255, 0.12);
  color: var(--fg-invert);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4);
}

.btn.ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.24);
}

.hero-terminal {
  background: rgba(2, 13, 32, 0.28);
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: stretch;
}

.terminal {
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-rows: auto 1fr;
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.terminal-bar {
  display: flex;
  gap: 8px;
  padding: 18px 28px 12px;
}

.terminal-bar span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.32);
}

.terminal-body {
  padding: 0 28px 36px;
  display: grid;
  gap: 10px;
  font-family: var(--mono);
  font-size: 15px;
  color: rgba(255, 255, 255, 0.82);
}

.prompt {
  color: var(--fg-accent-strong);
  margin-right: 12px;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .hero-terminal {
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }
}

@media (max-width: 600px) {
  .hero-col {
    padding: 36px 28px;
  }
}

/* Sections */
.section {
  margin-top: 72px;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-end;
  margin-bottom: 32px;
}

.section-head h2 {
  margin: 8px 0 0;
  font-size: clamp(26px, 3vw, 36px);
  color: var(--fg-strong);
}

.section-note {
  margin: 0;
  max-width: 36ch;
  color: var(--fg-muted);
}

.eyebrow,
.tile-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 12px;
  color: var(--fg-muted);
  font-weight: 600;
}

/* Insights */
.grid {
  display: grid;
  gap: 24px;
}

.grid-two {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.tile {
  background: var(--bg-panel);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-subtle);
  border: 1px solid var(--border-soft);
  display: grid;
  gap: 14px;
}

.tile h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.tile h3 a {
  color: var(--fg-strong);
  text-decoration: none;
}

.tile h3 a:hover {
  color: var(--fg-accent);
}

.tile-copy {
  margin: 0;
  color: var(--fg-body);
  line-height: 1.6;
}

time {
  font-size: 13px;
  color: var(--fg-muted);
}

/* Build */
.grid-three {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: var(--bg-panel);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-subtle);
  border: 1px solid var(--border-soft);
  display: grid;
  gap: 18px;
}

.card h3 {
  margin: 0;
  font-size: 20px;
}

.card h3 a {
  color: var(--fg-strong);
  text-decoration: none;
}

.card h3 a:hover {
  color: var(--fg-accent);
}

.card-copy {
  margin: 0;
  line-height: 1.6;
  color: var(--fg-body);
}

.card-meta {
  margin: 0;
  color: var(--fg-muted);
  font-size: 13px;
}

/* Connect */
.connect-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.connect-card {
  background: var(--bg-panel);
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-subtle);
  display: grid;
  gap: 8px;
}

.label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.connect-card a {
  color: var(--fg-strong);
  font-weight: 600;
  text-decoration: none;
}

.connect-card a:hover {
  color: var(--fg-accent);
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 56px 24px 32px;
  color: var(--fg-muted);
  font-size: 14px;
}

.site-footer p {
  margin: 4px 0;
}

.dim {
  color: var(--fg-muted);
}

/* Utilities */
.hidden {
  display: none !important;
}
.post-body ol {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 12px;
}

.post-body ol > li::marker {
  font-weight: 600;
  color: var(--fg-strong);
}