/* =========================================================
   Infinite Zero — implements DESIGN.md
   ========================================================= */

:root {
  /* Color tokens */
  --bg: #0d0b13;
  --bg-grain: #100d18;
  --surface: #161320;
  --surface-2: #1d1a29;
  --line: rgba(241, 234, 217, 0.10);
  --line-strong: rgba(241, 234, 217, 0.20);
  --fg: #f1ead9;
  --fg-2: #b3aa97;
  --fg-3: #6f6857;
  --accent: #e87a4a;
  --accent-2: #f3a878;
  --mint: #6fe6c8;
  --rose: #e89aa4;
  --hi-yellow: #f3c969;

  /* Type */
  --display: "Instrument Serif", Georgia, "Times New Roman", serif;
  --sans: "DM Sans", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Radii */
  --radius: 14px;
  --radius-lg: 22px;

  /* Layout */
  --container: 1240px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--fg);
  background-color: var(--bg);
  background-image:
    radial-gradient(1200px 600px at 80% -10%, rgba(232, 122, 74, 0.08), transparent 60%),
    radial-gradient(900px 500px at 0% 30%, rgba(111, 230, 200, 0.04), transparent 60%);
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

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

::selection {
  background: var(--accent);
  color: #1a0f08;
}

/* Container */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

@media (max-width: 720px) {
  .container {
    padding: 0 20px;
  }
}

/* =========================================================
   Typography
   ========================================================= */

.h-display,
h1,
h2,
h3 {
  font-family: var(--display);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.05;
  margin: 0;
}

h1 {
  font-size: clamp(56px, 9vw, 124px);
  line-height: 0.98;
  letter-spacing: -0.025em;
}

h2 {
  font-size: clamp(40px, 5vw, 64px);
  letter-spacing: -0.02em;
  line-height: 1;
}

h3 {
  font-size: 30px;
  letter-spacing: -0.01em;
  line-height: 1.05;
}

p {
  margin: 0 0 1em;
  color: var(--fg-2);
}

.lede {
  font-size: 18px;
  line-height: 1.55;
  color: var(--fg-2);
  max-width: 56ch;
}

/* Italic-as-accent: the brand's signature type move */
.h-display em,
h1 em,
h2 em,
h3 em,
.step h3 em,
.foot-mark em {
  font-style: italic;
  color: var(--accent);
}

.crossed {
  text-decoration: line-through;
  text-decoration-thickness: 3px;
  color: var(--fg-3);
  font-style: italic;
}

/* Eyebrow */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-2);
  margin: 0 0 18px;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/* Section meta line */
.meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-top: 18px;
}

.meta a {
  color: var(--fg);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: color 120ms ease, border-color 120ms ease;
}

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

/* =========================================================
   Topbar / nav
   ========================================================= */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(13, 11, 19, 0.78);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 18px;
  padding-bottom: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.brand-text .name {
  font-family: var(--display);
  font-size: 22px;
  letter-spacing: -0.01em;
}

.brand-text .sub {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-top: 4px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-2);
  transition: color 120ms ease;
}

.nav a:hover,
.nav a.active {
  color: var(--fg);
}

.nav a.active {
  border-bottom: 1px solid var(--accent);
  padding-bottom: 4px;
}

@media (max-width: 820px) {
  .nav {
    gap: 16px;
  }

  .nav .nav-extra {
    display: none;
  }
}

/* =========================================================
   Buttons
   ========================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--fg);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease, color 120ms ease;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: var(--fg);
}

.btn .arr {
  display: inline-block;
  transition: transform 200ms ease;
}

.btn:hover .arr {
  transform: translateX(2px);
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #1a0f08;
  font-weight: 600;
}

.btn.primary:hover {
  background: var(--accent-2);
  border-color: var(--accent-2);
}

.btn.ghost {
  border: none;
  padding-left: 0;
  padding-right: 0;
}

.btn.ghost:hover {
  transform: none;
  color: var(--accent);
}

/* =========================================================
   Pills
   ========================================================= */

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg);
  background: rgba(13, 11, 19, 0.55);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.pill.dot::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.7;
}

.pill.mint {
  background: var(--mint);
  color: #07211a;
  border-color: transparent;
}

.pill.warm {
  background: var(--accent);
  color: #1a0f08;
  border-color: transparent;
}

.pill.dim {
  color: var(--fg-3);
  border-color: var(--line);
}

.pulse {
  animation: pulse 1.6s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* =========================================================
   Hero
   ========================================================= */

.hero {
  padding: 88px 0 72px;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.hero h1 {
  max-width: 14ch;
}

.hero .lede {
  margin-top: 8px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

.hero-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: baseline;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-top: 22px;
}

/* =========================================================
   Section spacing
   ========================================================= */

.section {
  padding: 72px 0 96px;
}

.section .head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 40px;
}

@media (min-width: 900px) {
  .section .head {
    grid-template-columns: 1.1fr 1.4fr;
    align-items: end;
  }

  .section .head .head-meta {
    justify-self: end;
    text-align: right;
  }
}

/* Banded section (apps) */
.banded {
  padding: 96px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative;
  background: var(--bg-grain);
}

.banded::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 1px;
  height: 32px;
  background: var(--line-strong);
}

/* =========================================================
   Game grid
   ========================================================= */

.games-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 22px;
}

.game-card {
  grid-column: span 2;
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 240ms ease, border-color 240ms ease, background 240ms ease;
}

.game-card.featured {
  grid-column: span 4;
}

.game-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  background: var(--surface-2);
}

.game-card .art {
  position: relative;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--c1, #2a1a3a), var(--c2, #1a1230));
  overflow: hidden;
}

.game-card.featured .art {
  aspect-ratio: 16 / 9;
}

.game-card .art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.game-card .art::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(13, 11, 19, 0.6));
  pointer-events: none;
}

.game-card .tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
}

.game-card .body {
  padding: 22px 22px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.game-card .title {
  font-family: var(--display);
  font-size: 30px;
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.game-card.featured .title {
  font-size: 44px;
}

.game-card .tagline {
  font-size: 15px;
  line-height: 1.5;
  color: var(--fg-2);
  margin: 0;
}

.game-card .row {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 22px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-3);
}

.game-card .row a {
  color: var(--fg);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 120ms ease;
}

.game-card .row a:hover {
  color: var(--accent);
}

@media (max-width: 1000px) {
  .games-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .game-card,
  .game-card.featured {
    grid-column: span 1;
  }
  .game-card.featured {
    grid-column: span 2;
  }
}

@media (max-width: 600px) {
  .games-grid {
    grid-template-columns: 1fr;
  }
  .game-card,
  .game-card.featured {
    grid-column: span 1;
  }
}

/* =========================================================
   Apps grid
   ========================================================= */

.apps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.app-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform 240ms ease, border-color 240ms ease;
}

.app-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
}

.device {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.6);
}

.device img {
  width: 70%;
  max-height: 70%;
  object-fit: contain;
}

.app-card .title {
  font-family: var(--display);
  font-size: 26px;
  letter-spacing: -0.01em;
  line-height: 1.05;
}

.app-card .tagline {
  font-size: 15px;
  color: var(--fg-2);
}

.app-card .pills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .apps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .apps-grid {
    grid-template-columns: 1fr;
  }
}

/* =========================================================
   Journal grid
   ========================================================= */

.journal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.journal-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 240ms ease, border-color 240ms ease;
}

.journal-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
}

.journal-card .art {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--c1, #1a2030), var(--c2, #2a1a30));
}

.journal-card .body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.journal-card .title {
  font-family: var(--display);
  font-size: 26px;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.journal-card .tagline {
  font-size: 15px;
  color: var(--fg-2);
}

.journal-card .meta {
  margin-top: auto;
}

@media (max-width: 900px) {
  .journal-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .journal-grid {
    grid-template-columns: 1fr;
  }
}

/* =========================================================
   Process
   ========================================================= */

.process {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.step {
  padding: 32px 28px;
  border-right: 1px solid var(--line);
}

.step:last-child {
  border-right: none;
}

.step .num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 18px;
}

.step h3 {
  font-size: 32px;
  margin-bottom: 12px;
}

.step p {
  color: var(--fg-2);
  margin: 0;
}

@media (max-width: 900px) {
  .process {
    grid-template-columns: 1fr;
  }
  .step {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }
  .step:last-child {
    border-bottom: none;
  }
}

/* =========================================================
   Footer
   ========================================================= */

.footer {
  background: var(--bg-grain);
  border-top: 1px solid var(--line);
  padding: 56px 0 32px;
  margin-top: 72px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 32px;
}

.foot-mark {
  font-family: var(--display);
  font-size: 28px;
  line-height: 1.1;
  margin-bottom: 16px;
}

.foot-col h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-3);
  font-weight: 500;
  margin: 0 0 14px;
}

.foot-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.foot-col a {
  color: var(--fg-2);
  font-size: 14px;
  transition: color 120ms ease;
}

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

.newsletter {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 4px;
  margin-top: 16px;
  max-width: 340px;
}

.newsletter input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--fg);
  font-family: var(--sans);
  font-size: 14px;
  padding: 10px 14px;
}

.newsletter input::placeholder {
  color: var(--fg-3);
}

.newsletter button {
  border: none;
  border-radius: 999px;
  padding: 10px 18px;
  background: var(--accent);
  color: #1a0f08;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  transition: background 120ms ease;
}

.newsletter button:hover {
  background: var(--accent-2);
}

.copyright {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--fg-3);
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: space-between;
  align-items: baseline;
}

.copyright p {
  margin: 0;
  color: var(--fg-3);
}

.copyright .legal {
  display: flex;
  gap: 18px;
}

.copyright a {
  color: var(--fg-3);
  transition: color 120ms ease;
}

.copyright a:hover {
  color: var(--fg);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}