@import url("https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&family=Playfair+Display:wght@400;700;900&family=Source+Serif+4:wght@300;400;600&display=swap");

:root {
  --paper: #f8fafc;
  --surface: #ffffff;
  --surface-strong: #f1f3f5;
  --ink: #0f172a;
  --ink-soft: #334155;
  --muted: #64748b;
  --line: #d9dee7;
  --line-strong: #0f172a;
  --accent: #ff6a00;
  --accent-soft: rgba(255, 106, 0, 0.12);
  --accent-ink: #7a3200;
  --shadow-sharp: 10px 10px 0 #0f172a;
  --font-display: "Playfair Display", Georgia, "Times New Roman", "Songti SC", serif;
  --font-body: "Source Serif 4", Georgia, "Times New Roman", "Songti SC", serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --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;
  --z-header: 40;
  --z-cursor: 50;
  color: var(--ink);
  background: var(--paper);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(rgba(15, 23, 42, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: 48px 48px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  cursor: none;
}

a,
button,
input {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  border: 0;
  cursor: none;
}

::selection {
  background: var(--accent);
  color: #fff;
}

.skip-link {
  position: fixed;
  left: var(--space-4);
  top: var(--space-4);
  z-index: 100;
  min-height: 44px;
  padding: var(--space-3) var(--space-4);
  background: var(--ink);
  color: #fff;
  transform: translateY(-140%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.scroll-progress {
  position: fixed;
  left: 0;
  top: 0;
  z-index: var(--z-header);
  width: 0;
  height: 3px;
  background: var(--accent);
  transform-origin: left;
}

.custom-cursor,
.cursor-ring {
  position: fixed;
  left: 0;
  top: 0;
  z-index: var(--z-cursor);
  pointer-events: none;
  transform: translate3d(-50%, -50%, 0);
}

.custom-cursor {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent);
}

.cursor-ring {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(15, 23, 42, 0.42);
  border-radius: 999px;
  transition: width 180ms ease, height 180ms ease, border-color 180ms ease;
}

body.is-hovering .cursor-ring {
  width: 62px;
  height: 62px;
  border-color: var(--accent);
}

.editorial-shell {
  width: min(100%, 1680px);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  display: grid;
  grid-template-columns: minmax(10rem, 0.8fr) auto minmax(5.5rem, 0.3fr);
  gap: var(--space-5);
  align-items: center;
  min-height: 76px;
  border-bottom: 1px solid var(--line);
  padding: 0 clamp(var(--space-4), 4vw, var(--space-12));
  background: rgba(248, 250, 252, 0.88);
  backdrop-filter: blur(20px);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-2);
  width: fit-content;
  min-height: 44px;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2vw, 1.75rem);
  line-height: 1;
}

.brand span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.72em;
  letter-spacing: 0.08em;
}

.brand strong {
  font-weight: 700;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav a,
.header-cta,
.button,
.filter-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.nav a {
  padding: 0 var(--space-3);
  color: var(--ink-soft);
}

.nav a:hover,
.nav a:focus-visible,
.nav a.is-active {
  color: var(--accent);
}

.header-cta {
  justify-self: end;
  border: 1px solid var(--line-strong);
  padding: 0 var(--space-4);
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.header-cta:hover,
.header-cta:focus-visible {
  background: var(--ink);
  color: #fff;
}

main {
  overflow: clip;
}

.hero,
.section,
.reading-rail {
  width: min(1440px, calc(100% - clamp(2rem, 6vw, 6rem)));
  margin: 0 auto;
}

.hero {
  min-height: calc(100dvh - 76px);
  padding: clamp(var(--space-12), 8vw, var(--space-20)) 0 var(--space-16);
}

.hero-kicker,
.section-header.spread,
.hero-grid,
.about-section,
.tips-layout,
.subscribe-section {
  display: grid;
  gap: var(--space-8);
}

.hero-kicker {
  grid-template-columns: 1fr auto;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
  padding: var(--space-3) 0;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.58fr);
  align-items: stretch;
  padding-top: var(--space-12);
}

.eyebrow,
.mono-label {
  margin: 0 0 var(--space-4);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.13em;
  line-height: 1.4;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--ink);
  font-family: var(--font-display);
  letter-spacing: 0;
}

h1 {
  max-width: 9.2ch;
  margin-bottom: var(--space-8);
  font-size: clamp(5rem, 15vw, 14rem);
  font-weight: 900;
  line-height: 0.82;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(3rem, 7.5vw, 7.8rem);
  font-weight: 700;
  line-height: 0.9;
}

h3 {
  margin-bottom: var(--space-4);
  font-size: clamp(1.45rem, 2.2vw, 2.15rem);
  font-weight: 700;
  line-height: 1.05;
}

.hero-lead {
  max-width: 780px;
  margin-bottom: var(--space-8);
  color: var(--ink-soft);
  font-size: clamp(1.18rem, 2vw, 1.55rem);
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.button {
  border: 1px solid var(--line-strong);
  padding: 0 var(--space-5);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--ink);
  color: #fff;
}

.button-primary:hover,
.button-primary:focus-visible {
  border-color: var(--accent);
  background: var(--accent);
}

.button-secondary {
  background: var(--surface);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
}

[data-tilt-card] {
  transform: perspective(900px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg));
  transform-style: preserve-3d;
  transition: transform 200ms ease, border-color 200ms ease, background 200ms ease, box-shadow 200ms ease;
  will-change: transform;
}

.issue-board,
.matrix-card,
.article-card,
.tip-card,
.case-card,
.tool-card,
.reading-rail a {
  position: relative;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.82);
}

.issue-board {
  display: flex;
  min-height: 560px;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(var(--space-6), 3vw, var(--space-10));
  box-shadow: var(--shadow-sharp);
}

.issue-board:hover,
.matrix-card:hover,
.article-card:hover,
.tip-card:hover,
.case-card:hover,
.tool-card:hover,
.reading-rail a:hover {
  border-color: var(--accent);
}

.issue-board-top {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.issue-number {
  color: var(--accent);
  font-family: var(--font-display);
  font-size: clamp(4.5rem, 7vw, 7rem);
  font-weight: 900;
  line-height: 0.78;
}

.issue-board h2 {
  max-width: 11ch;
  margin-bottom: var(--space-5);
  font-size: clamp(2.25rem, 3.8vw, 4.25rem);
  line-height: 0.98;
}

.issue-board p,
.section-note,
.about-copy,
.tips-intro,
.article-card p,
.tip-card p,
.case-card p,
.subscribe-section p {
  color: var(--ink-soft);
}

.signal-list {
  display: grid;
  gap: var(--space-4);
  margin: var(--space-8) 0 0;
}

.signal-list div {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: var(--space-4);
  border-top: 1px solid var(--line);
  padding-top: var(--space-4);
}

.signal-list dt {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  text-transform: uppercase;
}

.signal-list dd {
  margin: 0;
}

.reading-rail {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  padding-bottom: var(--space-16);
}

.reading-rail a {
  display: grid;
  min-height: 180px;
  align-content: space-between;
  padding: var(--space-5);
}

.reading-rail span {
  color: var(--accent);
  font-family: var(--font-mono);
}

.reading-rail strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1;
}

.reading-rail em {
  color: var(--muted);
  font-style: normal;
}

.section {
  padding: clamp(var(--space-14, 3.5rem), 9vw, var(--space-20)) 0;
}

.section-header {
  margin-bottom: var(--space-10);
}

.section-header.spread,
.about-section,
.subscribe-section {
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.55fr);
  align-items: end;
}

.section-note {
  max-width: 390px;
  margin: 0;
  font-size: 1.08rem;
}

.about-section {
  align-items: start;
  border-top: 1px solid var(--line-strong);
}

.about-copy {
  max-width: 700px;
  font-size: clamp(1.12rem, 1.8vw, 1.35rem);
  line-height: 1.82;
}

.focus-matrix {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr 0.9fr;
  gap: var(--space-4);
}

.matrix-card {
  min-height: 260px;
  padding: var(--space-5);
}

.matrix-card.tall {
  grid-row: span 2;
  min-height: 540px;
}

.matrix-card.dark {
  background: var(--ink);
}

.matrix-card.dark h3,
.matrix-card.dark p {
  color: #fff;
}

.article-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-2);
}

.filter-button {
  border: 1px solid var(--line);
  padding: 0 var(--space-4);
  background: var(--surface);
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.filter-button:hover,
.filter-button:focus-visible,
.filter-button.is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.article-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 0.9fr;
  gap: var(--space-4);
}

.article-card {
  display: flex;
  min-height: 390px;
  flex-direction: column;
  padding: var(--space-6);
}

.article-card.is-hidden {
  display: none;
}

.lead-article {
  background: var(--ink);
}

.lead-article h3,
.lead-article p {
  color: #fff;
}

.preview-line {
  margin-top: auto;
  border-left: 2px solid var(--accent);
  padding-left: var(--space-3);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.55;
}

.article-card::after,
.tip-card::after,
.case-card::after,
.tool-card::after,
.matrix-card::after {
  position: absolute;
  inset: auto var(--space-5) var(--space-5) var(--space-5);
  border-left: 2px solid var(--accent);
  padding-left: var(--space-3);
  color: var(--muted);
  content: attr(data-preview);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.5;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.article-card:hover::after,
.article-card.is-previewing::after,
.tip-card:hover::after,
.tip-card.is-previewing::after,
.case-card:hover::after,
.case-card.is-previewing::after,
.tool-card:hover::after,
.tool-card.is-previewing::after,
.matrix-card:hover::after,
.matrix-card.is-previewing::after {
  opacity: 1;
  transform: translateY(0);
}

.tips-layout {
  grid-template-columns: minmax(260px, 0.45fr) 1fr;
  align-items: start;
}

.tips-intro {
  position: sticky;
  top: 104px;
  border-top: 1px solid var(--line-strong);
  padding-top: var(--space-5);
  font-size: 1.2rem;
}

.tips-list {
  display: grid;
  gap: var(--space-4);
}

.tip-card {
  display: grid;
  grid-template-columns: 4rem minmax(0, 0.6fr) 1fr;
  gap: var(--space-5);
  min-height: 190px;
  padding: var(--space-5);
}

.tip-card span {
  color: var(--accent);
  font-family: var(--font-mono);
}

.case-timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.case-card {
  min-height: 340px;
  padding: var(--space-6);
}

.stack-lab {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.tool-card {
  display: flex;
  min-height: 250px;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--space-5);
}

.tool-card strong {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3.6rem);
  line-height: 0.95;
}

.tool-card span {
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.6;
}

.subscribe-section {
  align-items: center;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.subscribe-section h2 {
  margin-bottom: var(--space-5);
}

.subscribe-form {
  border: 1px solid var(--line-strong);
  background: var(--surface);
  padding: var(--space-5);
}

.subscribe-form label {
  display: block;
  margin-bottom: var(--space-4);
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.05;
}

.form-row {
  display: flex;
  border: 1px solid var(--line-strong);
}

.form-row input {
  width: 100%;
  min-height: 54px;
  border: 0;
  background: #fff;
  padding: 0 var(--space-4);
  color: var(--ink);
  outline: 0;
}

.form-row button {
  min-width: 7rem;
  min-height: 54px;
  border-left: 1px solid var(--line-strong);
  background: var(--ink);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}

.form-row button:hover,
.form-row button:focus-visible {
  background: var(--accent);
}

.form-note {
  margin: var(--space-3) 0 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  border-top: 1px solid var(--line);
  padding: var(--space-5) clamp(var(--space-4), 4vw, var(--space-12));
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

@media (max-width: 1100px) {
  .site-header,
  .hero-grid,
  .section-header.spread,
  .about-section,
  .tips-layout,
  .subscribe-section {
    grid-template-columns: 1fr;
  }

  .header-cta {
    display: none;
  }

  .focus-matrix,
  .article-grid,
  .case-timeline,
  .stack-lab {
    grid-template-columns: 1fr 1fr;
  }

  .matrix-card.tall {
    grid-row: span 1;
    min-height: 260px;
  }

  .tips-intro {
    position: static;
  }
}

@media (max-width: 760px) {
  body {
    cursor: auto;
  }

  button,
  a {
    cursor: pointer;
  }

  .custom-cursor,
  .cursor-ring {
    display: none;
  }

  .site-header {
    grid-template-columns: 1fr;
    padding: var(--space-4);
  }

  .nav {
    justify-content: start;
    overflow-x: auto;
    padding-bottom: var(--space-1);
  }

  .hero,
  .section,
  .reading-rail {
    width: min(100% - 1rem, 1440px);
  }

  .hero-kicker,
  .reading-rail,
  .focus-matrix,
  .article-grid,
  .case-timeline,
  .stack-lab {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: 5.8ch;
    font-size: clamp(4.3rem, 22vw, 7rem);
  }

  h2 {
    font-size: clamp(3rem, 15vw, 5.4rem);
  }

  .issue-board {
    min-height: 440px;
    box-shadow: none;
  }

  .article-filter {
    justify-content: flex-start;
  }

  .tip-card {
    grid-template-columns: 1fr;
  }

  .form-row {
    flex-direction: column;
  }

  .form-row button {
    border-left: 0;
    border-top: 1px solid var(--line-strong);
  }

  .site-footer {
    justify-content: flex-start;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (max-width: 420px) {
  .hero,
  .section {
    padding-block: var(--space-12);
  }

  .issue-board,
  .article-card,
  .tip-card,
  .case-card,
  .tool-card {
    padding: var(--space-4);
  }
}

@media (hover: none) {
  .article-card::after,
  .tip-card::after,
  .case-card::after,
  .tool-card::after,
  .matrix-card::after {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }

  [data-parallax],
  [data-tilt-card] {
    transform: none !important;
  }
}