/* ============================================================
   PIPELINE PICKS — Design System
   Clean/modern tech editorial. Cabinet Grotesk display + Satoshi body.
   Ink navy + electric cyan accent.
   ============================================================ */

:root,
[data-theme='light'] {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 8rem);
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Surfaces (cool whites) */
  --color-bg: #f4f7fb;
  --color-surface: #ffffff;
  --color-surface-2: #fbfcfe;
  --color-surface-offset: #eaf0f7;
  --color-surface-offset-2: #e2eaf3;
  --color-surface-dynamic: #dde6f1;
  --color-divider: #e3e9f1;
  --color-border: #d4ddea;
  --color-border-strong: #b9c6d6;

  /* Text (deep navy ink) */
  --color-text: #0a1a2e;
  --color-text-muted: #4b5a70;
  --color-text-faint: #8593a6;
  --color-text-inverse: #f6f9fc;

  /* Accent — electric cyan */
  --color-accent: #06a3c4;
  --color-accent-hover: #0487a3;
  --color-accent-active: #036d85;
  --color-accent-soft: #e0f4f8;

  /* Ink navy (primary buttons / dark bands) */
  --color-ink: #0a1a2e;
  --color-ink-hover: #15293f;
  --color-ink-soft: #16273b;

  /* Semantic */
  --color-success: #1f8a4d;
  --color-success-soft: #e4f3e9;
  --color-warning: #b8680a;
  --color-warning-soft: #fdf0dd;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 0.875rem;
  --radius-xl: 1.25rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 2px rgba(10, 26, 46, 0.06);
  --shadow-md: 0 6px 18px rgba(10, 26, 46, 0.08);
  --shadow-lg: 0 18px 48px rgba(10, 26, 46, 0.14);
  --shadow-accent: 0 10px 30px rgba(6, 163, 196, 0.22);

  /* Content widths */
  --content-narrow: 680px;
  --content-default: 1040px;
  --content-wide: 1200px;

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Inter', system-ui, sans-serif;
  --font-body: 'Satoshi', 'Inter', system-ui, sans-serif;
}

[data-theme='dark'] {
  --color-bg: #0a1422;
  --color-surface: #101d2f;
  --color-surface-2: #142438;
  --color-surface-offset: #0e1b2c;
  --color-surface-offset-2: #16273b;
  --color-surface-dynamic: #1b2e44;
  --color-divider: #1d3047;
  --color-border: #243a54;
  --color-border-strong: #34506e;

  --color-text: #e3e9f1;
  --color-text-muted: #94a6bd;
  --color-text-faint: #647691;
  --color-text-inverse: #0a1a2e;

  --color-accent: #2dd4ef;
  --color-accent-hover: #5fe3f4;
  --color-accent-active: #0fb3cf;
  --color-accent-soft: #123140;

  --color-ink: #0a1422;
  --color-ink-hover: #16273b;
  --color-ink-soft: #16273b;

  --color-success: #4ec77a;
  --color-success-soft: #122a1c;
  --color-warning: #e0a24a;
  --color-warning-soft: #2a2010;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.6);
  --shadow-accent: 0 10px 30px rgba(45, 212, 239, 0.2);
}

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

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  hanging-punctuation: first last;
  scroll-padding-top: 5rem;
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body, sans-serif);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

img,
picture,
video,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

ul[role='list'],
ol[role='list'] {
  list-style: none;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  text-wrap: balance;
  letter-spacing: -0.01em;
}

p,
li,
figcaption {
  text-wrap: pretty;
  max-width: 74ch;
}

::selection {
  background: color-mix(in oklab, var(--color-accent) 30%, transparent);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

table {
  border-collapse: collapse;
  width: 100%;
}

a {
  transition: color var(--transition-interactive);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ============ Layout primitives ============ */
.container {
  width: 100%;
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

.container--wide {
  max-width: var(--content-wide);
}

.container--narrow {
  max-width: var(--content-narrow);
}

.section {
  padding-block: clamp(2.5rem, 7vw, 5rem);
}

.section--tight {
  padding-block: clamp(2rem, 5vw, 3.5rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.eyebrow::before {
  content: '';
  width: 1.5rem;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 0.8rem 1.4rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  border: 1px solid transparent;
  transition: all var(--transition-interactive);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-ink);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
  background: var(--color-ink-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--accent {
  background: var(--color-accent);
  color: #04222b;
  box-shadow: var(--shadow-accent);
}

.btn--accent:hover {
  background: var(--color-accent-hover);
  color: #fff;
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ============ Header ============ */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-divider);
  transition: box-shadow var(--transition-interactive);
}

.header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 4.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--color-text);
}

.brand__mark {
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
  color: var(--color-accent);
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-md);
}

.nav a:hover {
  color: var(--color-text);
  background: var(--color-surface-offset);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  transition: all var(--transition-interactive);
}

.theme-toggle:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.nav-toggle {
  display: none;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  align-items: center;
  justify-content: center;
}

@media (max-width: 860px) {
  .nav,
  .header__actions .btn {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .header.is-open .nav {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-divider);
    padding: 0.75rem;
    gap: 0.25rem;
  }
  .header.is-open .nav a {
    padding: 0.75rem 1rem;
  }
  .header.is-open .header__actions .btn {
    display: inline-flex;
  }
}

/* ============ Hero ============ */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(3rem, 9vw, 6.5rem);
  background:
    radial-gradient(120% 80% at 85% -10%, color-mix(in oklab, var(--color-accent) 16%, transparent), transparent 60%),
    radial-gradient(90% 70% at 0% 110%, color-mix(in oklab, var(--color-ink) 8%, transparent), transparent 55%),
    var(--color-bg);
  border-bottom: 1px solid var(--color-divider);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero__title {
  font-size: var(--text-2xl);
  margin-top: 1rem;
  max-width: 18ch;
}

.hero__title em {
  font-style: normal;
  color: var(--color-accent);
}

.hero__lede {
  margin-top: 1.25rem;
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 48ch;
  line-height: 1.5;
}

.hero__cta {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero__meta {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.hero__meta strong {
  color: var(--color-text);
  font-family: var(--font-display);
}

@media (max-width: 860px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }
  .hero__card {
    order: -1;
  }
}

/* Hero visual card */
.hero__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
}

.hero__card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.hero__card-title {
  font-size: var(--text-base);
  font-weight: 700;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-full);
  background: var(--color-accent-soft);
  color: var(--color-accent-active);
}

.badge--pick {
  background: var(--color-success-soft);
  color: var(--color-success);
}

.badge--value {
  background: var(--color-warning-soft);
  color: var(--color-warning);
}

.compare-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--color-divider);
}

.compare-row:first-of-type {
  border-top: none;
}

.compare-row .name {
  font-weight: 600;
  font-size: var(--text-sm);
}

.compare-row .score {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-accent);
}

/* ============ Section heading ============ */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.section-head__title {
  font-size: var(--text-xl);
  margin-top: 0.5rem;
  max-width: 20ch;
}

.section-head__lede {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: 42ch;
}

/* ============ Category cards ============ */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 860px) {
  .cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 540px) {
  .cat-grid {
    grid-template-columns: 1fr;
  }
}

.cat-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--color-text);
  transition: all var(--transition-interactive);
}

.cat-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.cat-card__icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.cat-card__title {
  font-size: var(--text-base);
  font-weight: 700;
}

.cat-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

.cat-card__count {
  margin-top: auto;
  padding-top: 0.5rem;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-weight: 500;
}

/* ============ Article cards (feature grid) ============ */
.feed-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 980px) {
  .feed-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .feed-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: var(--color-text);
  transition: all var(--transition-interactive);
}

.card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.card__media {
  aspect-ratio: 16 / 9;
  background: var(--color-surface-offset);
  position: relative;
  overflow: hidden;
}

.card__media svg {
  width: 100%;
  height: 100%;
  display: block;
}

.card__body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}

.card__tag {
  align-self: flex-start;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.card__title {
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1.25;
}

.card__excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.55;
}

.card__meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ============ Comparison table ============ */
.compare-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  max-width: 100%;
}

.compare-table {
  min-width: 640px;
}

.compare-table th,
.compare-table td {
  text-align: left;
  padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--color-divider);
  font-size: var(--text-sm);
  vertical-align: top;
}

.compare-table thead th {
  background: var(--color-surface-offset);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-base);
}

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

.compare-table td .col-name {
  font-weight: 700;
  display: block;
  margin-bottom: 0.15rem;
}

.compare-table td .col-sub {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

.compare-table .pick {
  background: color-mix(in oklab, var(--color-accent) 7%, transparent);
}

.compare-table .pick-badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  color: #04222b;
  margin-left: 0.5rem;
}

/* ============ CTA / recommendation block ============ */
.reco {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: center;
  background: linear-gradient(in oklab, var(--color-ink), var(--color-ink-soft));
  color: #fff;
  border-radius: var(--radius-xl);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  margin-block: 2rem;
}

.reco__badge {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.reco__name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
}

.reco__desc {
  color: color-mix(in oklab, #fff 72%, transparent);
  margin-top: 0.5rem;
  max-width: 48ch;
  font-size: var(--text-sm);
}

.reco__actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

@media (max-width: 640px) {
  .reco {
    grid-template-columns: 1fr;
  }
}

/* ============ Prose (article body) ============ */
.prose {
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
}

.prose > * + * {
  margin-top: 1.25rem;
}

.prose h2 {
  font-size: var(--text-xl);
  margin-top: 2.5rem;
  margin-bottom: 0.25rem;
  scroll-margin-top: 5rem;
}

.prose h3 {
  font-size: var(--text-lg);
  margin-top: 1.75rem;
  margin-bottom: 0.25rem;
}

.prose p,
.prose li {
  color: var(--color-text);
  max-width: 74ch;
  overflow-wrap: anywhere;
}

.prose a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.prose ul,
.prose ol {
  padding-left: 1.4em;
  max-width: 72ch;
  overflow-wrap: anywhere;
}

.prose ul li,
.prose ol li {
  margin-top: 0.4rem;
}

.prose strong {
  font-weight: 700;
}

.prose blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 0.25rem 0 0.25rem 1.25rem;
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-text);
  max-width: 72ch;
}

.prose figure {
  margin: 2rem 0;
}

.prose figcaption {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 0.5rem;
  text-align: center;
}

/* callout box */
.callout {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: start;
  background: var(--color-accent-soft);
  border: 1px solid color-mix(in oklab, var(--color-accent) 25%, transparent);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.25rem;
  font-size: var(--text-sm);
  color: var(--color-text);
}

.callout svg {
  color: var(--color-accent);
  margin-top: 0.1rem;
  flex-shrink: 0;
}

/* pros / cons */
.proscons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}

@media (max-width: 640px) {
  .proscons {
    grid-template-columns: 1fr;
  }
}

.proscons__box {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  background: var(--color-surface);
}

.proscons__box h4 {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.proscons__box--pros h4 {
  color: var(--color-success);
}

.proscons__box--cons h4 {
  color: var(--color-warning);
}

.proscons__box ul {
  padding-left: 1.1em;
  font-size: var(--text-sm);
  line-height: 1.5;
}

.proscons__box li {
  margin-top: 0.35rem;
}

/* tool card (inline recommendation) */
.tool-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  background: var(--color-surface);
  margin: 1rem 0;
}

.tool-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.tool-card__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
}

.tool-card__price {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.tool-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.tool-card__cta {
  margin-top: 0.5rem;
}

/* ============ Newsletter ============ */
.newsletter {
  background: var(--color-ink);
  color: #fff;
  border-radius: var(--radius-xl);
  padding: clamp(2rem, 5vw, 3.5rem);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.newsletter::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 80% at 50% -20%, color-mix(in oklab, var(--color-accent) 30%, transparent), transparent 70%);
  pointer-events: none;
}

.newsletter > * {
  position: relative;
}

.newsletter h2 {
  font-size: var(--text-xl);
}

.newsletter p {
  color: color-mix(in oklab, #fff 72%, transparent);
  margin-top: 0.75rem;
  max-width: 46ch;
  margin-inline: auto;
}

.newsletter__form {
  margin-top: 1.75rem;
  display: flex;
  gap: 0.5rem;
  max-width: 460px;
  margin-inline: auto;
}

.newsletter__form input {
  flex: 1;
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-full);
  border: 1px solid color-mix(in oklab, #fff 25%, transparent);
  background: color-mix(in oklab, #fff 8%, transparent);
  color: #fff;
  font-size: var(--text-sm);
}

.newsletter__form input::placeholder {
  color: color-mix(in oklab, #fff 55%, transparent);
}

.newsletter__form input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.newsletter__fine {
  margin-top: 0.85rem;
  font-size: var(--text-xs);
  color: color-mix(in oklab, #fff 50%, transparent);
}

@media (max-width: 480px) {
  .newsletter__form {
    flex-direction: column;
  }
}

/* ============ Article layout ============ */
.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.article-layout > * {
  min-width: 0;
}

@media (min-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr 16rem;
    gap: 3rem;
    align-items: start;
  }
}

.toc {
  position: sticky;
  top: 5.5rem;
  font-size: var(--text-sm);
}

.toc h2 {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-faint);
  margin-bottom: 0.75rem;
}

.toc ol {
  list-style: none;
  padding: 0;
  border-left: 1px solid var(--color-divider);
}

.toc li {
  margin: 0;
}

.toc a {
  display: block;
  padding: 0.4rem 0 0.4rem 0.85rem;
  margin-left: -1px;
  border-left: 2px solid transparent;
  color: var(--color-text-muted);
  text-decoration: none;
  line-height: 1.4;
}

.toc a:hover {
  color: var(--color-accent);
  border-left-color: var(--color-accent);
}

@media (max-width: 1023px) {
  .toc {
    display: none;
  }
}

/* ============ Article header ============ */
.article-hero {
  border-bottom: 1px solid var(--color-divider);
  padding-block: clamp(2rem, 5vw, 3.5rem) 0;
}

.article-hero__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.article-hero__title {
  font-size: var(--text-2xl);
  max-width: 22ch;
  letter-spacing: -0.02em;
}

.article-hero__lede {
  margin-top: 1rem;
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 56ch;
  line-height: 1.5;
}

.article-hero__meta {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.article-hero__meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
}

/* ============ Footer ============ */
.footer {
  border-top: 1px solid var(--color-divider);
  background: var(--color-surface);
  padding-block: clamp(2.5rem, 5vw, 4rem) 2rem;
  margin-top: 4rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2rem;
}

@media (max-width: 720px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 440px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.footer__about {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 38ch;
  line-height: 1.55;
}

.footer h4 {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-faint);
  margin-bottom: 0.85rem;
}

.footer ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.footer a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
}

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

.footer__bottom {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-divider);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer__bottom a {
  color: var(--color-text-faint);
  font-size: var(--text-xs);
}

/* ============ Utility ============ */
.text-muted {
  color: var(--color-text-muted);
}

.divider-img {
  width: 100%;
  border-radius: var(--radius-lg);
  margin-block: 2.5rem;
}

.lead-stat {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2.5rem;
}

@media (max-width: 720px) {
  .lead-stat {
    grid-template-columns: repeat(2, 1fr);
  }
}

.stat {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  background: var(--color-surface);
}

.stat__num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-accent);
}

.stat__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 0.25rem;
  line-height: 1.4;
}

/* hero abstract illustration */
.hero-art {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(60% 60% at 30% 20%, color-mix(in oklab, var(--color-accent) 22%, transparent), transparent 70%),
    var(--color-surface-offset);
  display: grid;
  place-items: center;
  margin-bottom: 1.25rem;
  border: 1px solid var(--color-border);
}

/* page header (interior pages) */
.page-header {
  padding-block: clamp(2.5rem, 6vw, 4rem);
  border-bottom: 1px solid var(--color-divider);
}

.page-header h1 {
  font-size: var(--text-2xl);
  margin-top: 0.75rem;
  max-width: 22ch;
}

.page-header p {
  margin-top: 1rem;
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 54ch;
  line-height: 1.5;
}

.prose-narrow {
  max-width: 760px;
  min-width: 0;
}

.prose-narrow p,
.prose-narrow li,
.prose-narrow ul,
.prose-narrow ol,
.prose-narrow blockquote {
  max-width: 100%;
}