/* ==========================================================================
   DogwifCat — main stylesheet
   --------------------------------------------------------------------------
   1.  Design tokens
   2.  Reset & base
   3.  Layout primitives
   4.  Typography
   5.  Atmosphere (grain, washes)
   6.  Buttons & controls
   7.  Site header & navigation
   8.  Hero
   9.  Section furniture
   10. About & mission
   11. Legend (dark chapter)
   12. Motto band
   13. Tokenomics spec sheet
   14. Roadmap
   15. Footer
   16. Reveal animations
   17. Responsive
   ========================================================================== */

/* 1. Design tokens ======================================================== */

:root {
  /* Palette — drawn from the emblem's wood, cream and amber */
  --ink: #211710;
  --ink-soft: #2e2118;
  --ink-line: #463527;

  --paper: #f8f2e7;
  --paper-2: #f1e7d6;
  --paper-3: #e8dbc4;
  --paper-line: #ddcdb1;

  --wood: #7a4f30;
  --amber: #c47a24;
  --amber-text: #95531f;
  --amber-glow: #e0a355;
  --clay: #a8622a;
  /* Deeper clay reserved for filled buttons so light label text clears 4.5:1 */
  --clay-deep: #9a5723;

  --muted: #6b5b4c;
  --muted-on-ink: #b7a690;

  /* Typography */
  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-body: "Instrument Sans", "Segoe UI", Helvetica, sans-serif;

  /* Fluid type scale */
  --step--1: clamp(0.83rem, 0.8rem + 0.15vw, 0.92rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.12rem);
  --step-1: clamp(1.2rem, 1.12rem + 0.4vw, 1.45rem);
  --step-2: clamp(1.45rem, 1.3rem + 0.75vw, 1.95rem);
  --step-3: clamp(1.8rem, 1.5rem + 1.5vw, 2.85rem);
  --step-4: clamp(2.3rem, 1.7rem + 3vw, 4.4rem);
  --step-5: clamp(2.5rem, 1.6rem + 4.2vw, 5.4rem);

  /* Space */
  --space-2xs: 0.375rem;
  --space-xs: 0.75rem;
  --space-s: 1.125rem;
  --space-m: 1.75rem;
  --space-l: 2.75rem;
  --space-xl: 4.5rem;
  --space-2xl: clamp(4.5rem, 3rem + 7vw, 9rem);

  /* Shell */
  --shell: 74rem;
  --shell-pad: clamp(1.25rem, 0.75rem + 2.5vw, 3.5rem);
  --measure: 63ch;

  /* Effects */
  --radius-s: 4px;
  --radius-m: 10px;
  --radius-l: 20px;
  --ring: 0 0 0 3px rgba(196, 122, 36, 0.32);
  --shadow-soft: 0 18px 48px -24px rgba(45, 28, 14, 0.32);
  --shadow-lift: 0 28px 70px -30px rgba(45, 28, 14, 0.45);
  --ease: cubic-bezier(0.22, 0.68, 0.24, 1);
}

/* 2. Reset & base ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--amber-text);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
  transition: color 0.25s var(--ease);
}

a:hover {
  color: var(--ink);
}

:focus-visible {
  outline: 2px solid var(--amber-text);
  outline-offset: 3px;
  border-radius: var(--radius-s);
}

::selection {
  background: var(--amber-glow);
  color: var(--ink);
}

/* Skip link */

.skip-link {
  position: absolute;
  top: 0;
  left: 50%;
  z-index: 100;
  padding: 0.7rem 1.25rem;
  background: var(--ink);
  color: var(--paper);
  font-size: var(--step--1);
  text-decoration: none;
  border-radius: 0 0 var(--radius-m) var(--radius-m);
  transform: translate(-50%, -110%);
  transition: transform 0.25s var(--ease);
}

.skip-link:focus {
  transform: translate(-50%, 0);
  color: var(--paper);
}

/* 3. Layout primitives ==================================================== */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--shell-pad);
}

.shell--narrow {
  max-width: 58rem;
}

.section {
  position: relative;
  padding-block: var(--space-2xl);
}

.section + .section {
  padding-block-start: 0;
}

.section--band {
  padding-block: var(--space-2xl);
}

.section + .section--band,
.section--band + .section {
  padding-block-start: var(--space-2xl);
}

.rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: linear-gradient(
    90deg,
    var(--paper-line) 0%,
    var(--paper-line) 62%,
    transparent 100%
  );
}

/* 4. Typography =========================================================== */

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-variation-settings: "SOFT" 28, "WONK" 1;
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0;
  text-wrap: balance;
}

p {
  margin: 0 0 var(--space-s);
  max-width: var(--measure);
}

p:last-child {
  margin-bottom: 0;
}

b,
strong {
  font-weight: 600;
  color: var(--wood);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0 0 var(--space-s);
  font-family: var(--font-body);
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.eyebrow::before {
  content: "";
  width: 2.25rem;
  height: 2px;
  flex: none;
  background: var(--clay);
}

.lede {
  font-size: var(--step-1);
  line-height: 1.55;
  color: var(--muted);
  max-width: 40ch;
}

/* 5. Atmosphere =========================================================== */

/* Fixed, non-interactive grain + warm wash layers so nothing repaints on scroll */
.atmosphere {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.atmosphere::before {
  content: "";
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(
      42rem 42rem at 78% -8%,
      rgba(224, 163, 85, 0.28),
      transparent 62%
    ),
    radial-gradient(
      36rem 36rem at 4% 42%,
      rgba(122, 79, 48, 0.13),
      transparent 60%
    );
}

.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.4;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='0.42'/%3E%3C/svg%3E");
}

/* Everything above the atmosphere */
.site-header,
.site-main,
.site-footer {
  position: relative;
  z-index: 1;
}

/* 6. Buttons & controls =================================================== */

.btn {
  --btn-bg: var(--ink);
  --btn-fg: var(--paper);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.6rem;
  border: 1px solid var(--btn-bg);
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--font-body);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform 0.28s var(--ease),
    box-shadow 0.28s var(--ease),
    background-color 0.28s var(--ease),
    color 0.28s var(--ease);
}

.btn:hover {
  color: var(--btn-fg);
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.btn:active {
  transform: translateY(0);
}

.btn .btn__icon {
  width: 1em;
  height: 1em;
  flex: none;
  transition: transform 0.28s var(--ease);
}

.btn:hover .btn__icon {
  transform: translateX(3px);
}

.btn--primary {
  --btn-bg: var(--clay-deep);
  --btn-fg: #fff8ec;
  border-color: var(--clay-deep);
}

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  border-color: var(--paper-line);
}

.btn--ghost:hover {
  --btn-bg: var(--paper-2);
  border-color: var(--wood);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-m);
}

/* 7. Site header ========================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper); /* fallback where color-mix is unsupported */
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition:
    border-color 0.3s var(--ease),
    background-color 0.3s var(--ease);
}

.site-header.is-stuck {
  border-bottom-color: var(--paper-line);
  background: color-mix(in srgb, var(--paper) 94%, transparent);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-m);
  min-height: 4.75rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-right: auto;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 700;
  font-variation-settings: "SOFT" 20, "WONK" 1;
  letter-spacing: -0.02em;
}

.brand__mark {
  width: 2.35rem;
  height: 2.35rem;
  flex: none;
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--paper-line);
}

.brand:hover {
  color: var(--wood);
}

/* Navigation */

.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.2vw, 2.1rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav__link {
  position: relative;
  color: var(--ink);
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding-block: 0.35rem;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1.5px;
  background: var(--clay);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.nav__link:hover::after,
.nav__link[aria-current="true"]::after {
  transform: scaleX(1);
}

.nav__cta {
  margin-left: 0.5rem;
}

/* Mobile nav toggle */

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-m);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 17px;
  height: 1.5px;
  margin-inline: auto;
  background: currentColor;
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: relative;
}

.nav-toggle__bars::before {
  top: -5px;
}

.nav-toggle__bars::after {
  top: 3.5px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars {
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
  top: -1.5px;
  transform: rotate(-90deg);
}

/* 8. Hero ================================================================= */

.hero {
  position: relative;
  padding-block: clamp(3rem, 2rem + 6vw, 7rem) var(--space-2xl);
}

.hero__grid {
  display: grid;
  /* Left column is sized so the longest headline line ("Infinite memes.")
     holds on one line at the top of the type scale. */
  grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
  align-items: center;
  gap: clamp(2rem, 1rem + 5vw, 5rem);
}

.hero__title {
  font-size: var(--step-5);
  font-weight: 700;
  font-variation-settings: "SOFT" 34, "WONK" 1;
  margin-bottom: var(--space-s);
}

.hero__title .hero__line {
  display: block;
}

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

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
  margin-top: var(--space-l);
  padding-top: var(--space-s);
  border-top: 1px solid var(--paper-line);
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero__meta b {
  color: var(--ink);
  font-weight: 600;
  letter-spacing: 0.06em;
}

/* Emblem — layered rings, gentle float */

.emblem {
  position: relative;
  justify-self: center;
  /* Width is held at 82% of the column so the decorative orbit ring below
     (which sits --orbit outside the medallion on every side) always resolves
     inside the column instead of relying on the page gutter for clearance. */
  width: min(82%, 30rem);
  aspect-ratio: 1;
  --orbit: -9%;
}

.emblem__img {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: var(--shadow-lift);
  animation: float 9s var(--ease) infinite;
}

.emblem__ring {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.emblem__ring--1 {
  inset: -3.5%;
  border: 1px solid var(--paper-line);
  z-index: 1;
}

.emblem__ring--2 {
  inset: var(--orbit);
  border: 1px dashed rgba(122, 79, 48, 0.32);
  z-index: 0;
  animation: spin 90s linear infinite;
}

.emblem__ring--3 {
  inset: 6%;
  z-index: 3;
  box-shadow: inset 0 0 0 1px rgba(255, 248, 236, 0.28);
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-14px) rotate(-1.1deg);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 9. Section furniture ==================================================== */

.section__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0 clamp(1.25rem, 3vw, 3rem);
  align-items: start;
  margin-bottom: var(--space-l);
}

.section__index {
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  color: var(--clay);
  padding-top: 0.35em;
  letter-spacing: 0.02em;
}

.section__title {
  font-size: var(--step-3);
}

.section__sub {
  grid-column: 2;
  margin-top: var(--space-xs);
  color: var(--muted);
  max-width: 46ch;
}

.join__head {
  margin-top: var(--space-l);
}

/* 10. About & mission ===================================================== */

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr);
  gap: clamp(1.5rem, 1rem + 4vw, 4.5rem);
  align-items: start;
}

.statement {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 500;
  font-variation-settings: "SOFT" 40, "WONK" 1;
  line-height: 1.28;
  letter-spacing: -0.015em;
  color: var(--ink);
  max-width: 34ch;
}

.statement em {
  font-style: normal;
  color: var(--amber-text);
}

.pillars {
  display: grid;
  gap: var(--space-s);
  margin: 0;
  padding: 0;
  list-style: none;
}

.pillar {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0 var(--space-s);
  padding-top: var(--space-s);
  border-top: 1px solid var(--paper-line);
}

.pillar__mark {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--clay);
  margin-top: 0.15rem;
}

.pillar__title {
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 600;
  margin: 0 0 0.2rem;
}

.pillar__body {
  margin: 0;
  color: var(--muted);
  font-size: var(--step--1);
  line-height: 1.7;
}

/* 11. Legend — dark editorial chapter ===================================== */

.legend {
  background: var(--ink);
  color: var(--paper-2);
  overflow: hidden;
}

.legend::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    50rem 30rem at 82% 0%,
    rgba(224, 163, 85, 0.16),
    transparent 65%
  );
  pointer-events: none;
}

.legend > * {
  position: relative;
}

.legend .eyebrow {
  color: var(--muted-on-ink);
}

.legend .eyebrow::before {
  background: var(--amber-glow);
}

.legend__title {
  font-size: var(--step-4);
  font-weight: 600;
  color: var(--paper);
  max-width: 24ch;
  margin-bottom: var(--space-l);
}

.legend__body {
  max-width: var(--measure);
  margin-inline: auto;
  font-size: var(--step-0);
  line-height: 1.85;
  color: #ddd0bb;
}

.legend__body p {
  margin: 0 0 1.35em;
  max-width: none;
}

.legend__body b {
  color: var(--amber-glow);
  font-weight: 600;
}

/* Drop cap on the opening line */
.legend__body > p:first-of-type::first-letter {
  float: left;
  font-family: var(--font-display);
  font-size: 4.1em;
  font-weight: 600;
  line-height: 0.82;
  margin: 0.06em 0.12em 0 0;
  color: var(--amber-glow);
}

/* Cadenced beats */
.beat {
  margin: 2em 0 !important;
  padding: 0.2em 0 0.2em 1.4em;
  border-left: 2px solid var(--amber);
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 400;
  font-variation-settings: "SOFT" 44, "WONK" 1;
  line-height: 1.95;
  color: #f0e3cc;
}

.beat .close {
  color: var(--amber-glow);
  font-weight: 600;
}

.legend__mark {
  display: block;
  width: 3rem;
  height: auto;
  margin: var(--space-l) auto 0;
  color: var(--ink-line);
}

/* 12. Motto band ========================================================== */

.motto {
  background: linear-gradient(135deg, var(--clay), var(--amber-glow));
  color: #2a1c0f;
  text-align: center;
  overflow: hidden;
}

.motto::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='34' height='34'%3E%3Cpath d='M0 34 34 0' stroke='rgba(42,28,15,0.14)' stroke-width='1'/%3E%3C/svg%3E");
  opacity: 0.55;
  pointer-events: none;
}

.motto > * {
  position: relative;
}

.motto__label {
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(42, 28, 15, 0.66);
  margin-bottom: var(--space-m);
}

.equation {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: clamp(0.75rem, 2.4vw, 2rem);
  margin-bottom: var(--space-m);
}

.equation__mark {
  width: clamp(2.75rem, 7vw, 4.75rem);
  height: auto;
  color: #2a1c0f;
}

.equation__op {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4vw, 3rem);
  font-weight: 300;
  line-height: 1;
  color: rgba(42, 28, 15, 0.62);
}

.motto__line {
  font-family: var(--font-display);
  font-size: var(--step-3);
  font-weight: 600;
  font-variation-settings: "SOFT" 30, "WONK" 1;
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: none;
  margin: 0;
}

/* 13. Tokenomics spec sheet =============================================== */

.spec {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 clamp(2rem, 5vw, 5rem);
  margin: 0;
  border-top: 1px solid var(--paper-line);
}

.spec__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-s);
  align-items: baseline;
  padding-block: 1.1rem;
  border-bottom: 1px solid var(--paper-line);
}

.spec__key {
  margin: 0;
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.spec__val {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-align: right;
  max-width: none;
}

.spec__val--accent {
  color: var(--amber-text);
}

/* Copy-to-clipboard ticker */

.copy {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.15rem 0.15rem 0.15rem 0.6rem;
  border: 1px dashed var(--paper-line);
  border-radius: 999px;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.copy:hover {
  border-color: var(--wood);
  border-style: solid;
  background: var(--paper-2);
}

.copy__icon {
  width: 1.5rem;
  height: 1.5rem;
  padding: 0.32rem;
  border-radius: 50%;
  background: var(--paper-3);
  color: var(--wood);
  flex: none;
}

.copy.is-copied .copy__icon {
  background: var(--clay);
  color: #fff8ec;
}

.copy__status {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* 14. Roadmap ============================================================= */

.roadmap {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: phase;
}

.phase {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 0 clamp(1.25rem, 3vw, 2.5rem);
  padding-block: var(--space-m);
  border-top: 1px solid var(--paper-line);
  counter-increment: phase;
  transition: background-color 0.35s var(--ease);
}

.phase:last-child {
  border-bottom: 1px solid var(--paper-line);
}

.phase:hover {
  background: color-mix(in srgb, var(--paper-2) 70%, transparent);
}

/* Stagger the rows for editorial rhythm */
.phase:nth-child(even) {
  padding-left: clamp(0rem, 4vw, 3.5rem);
}

.phase__num {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  color: var(--paper-line);
  line-height: 1;
  transition: color 0.35s var(--ease);
}

.phase:hover .phase__num {
  color: var(--clay);
}

.phase__num::before {
  content: counter(phase, decimal-leading-zero);
}

.phase__title {
  font-size: var(--step-1);
  font-weight: 600;
  margin: 0 0 0.3rem;
}

.phase__body {
  margin: 0;
  color: var(--muted);
  font-size: var(--step--1);
  line-height: 1.7;
}

/* 15. Footer ============================================================== */

.site-footer {
  /* No top margin: the preceding section's bottom padding already separates. */
  padding-block: var(--space-xl) var(--space-l);
  background: var(--ink);
  color: var(--muted-on-ink);
  font-size: var(--step--1);
}

.site-footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
  gap: var(--space-l);
  padding-bottom: var(--space-l);
  border-bottom: 1px solid var(--ink-line);
}

.site-footer .brand {
  color: var(--paper);
  margin-right: 0;
}

.site-footer .brand:hover {
  color: var(--amber-glow);
}

.site-footer__tag {
  margin: var(--space-s) 0 0;
  max-width: 32ch;
  line-height: 1.7;
}

.footer-group__title {
  font-family: var(--font-body);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--paper-3);
  margin: 0 0 var(--space-s);
}

.footer-group__list {
  display: grid;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-group__list a {
  color: var(--muted-on-ink);
  text-decoration: none;
}

.footer-group__list a:hover {
  color: var(--amber-glow);
  text-decoration: underline;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-s);
  padding-top: var(--space-m);
}

.site-footer__bottom p {
  margin: 0;
  max-width: 70ch;
}

.disclaimer {
  color: #9c8b76;
  line-height: 1.7;
  max-width: 62ch;
}

/* 16. Reveal animations =================================================== */

/* Applied by JS only; content is visible by default so it never hides
   for users without JavaScript. */
.js .reveal {
  opacity: 0;
  transform: translateY(22px);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
  transition:
    opacity 0.75s var(--ease),
    transform 0.75s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}

/* Hero load-in stagger */
.hero__stagger > * {
  animation: rise 0.85s var(--ease) both;
}

.hero__stagger > *:nth-child(1) {
  animation-delay: 0.05s;
}
.hero__stagger > *:nth-child(2) {
  animation-delay: 0.16s;
}
.hero__stagger > *:nth-child(3) {
  animation-delay: 0.27s;
}
.hero__stagger > *:nth-child(4) {
  animation-delay: 0.38s;
}
.hero__stagger > *:nth-child(5) {
  animation-delay: 0.49s;
}

.hero .emblem {
  animation: emblem-in 1.1s var(--ease) 0.2s both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes emblem-in {
  from {
    opacity: 0;
    transform: scale(0.94) rotate(-3deg);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* 17. Responsive ========================================================== */

@media (max-width: 62rem) {
  .hero__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-xl);
  }

  .hero__content {
    order: 2;
  }

  .emblem {
    order: 1;
    width: min(82%, 21rem);
    --orbit: -7%;
  }

  .split {
    grid-template-columns: minmax(0, 1fr);
  }

  .spec {
    grid-template-columns: minmax(0, 1fr);
  }

  .site-footer__top {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .site-footer .brand-block {
    grid-column: 1 / -1;
  }
}

@media (max-width: 48rem) {
  .nav-toggle {
    display: grid;
    place-items: center;
  }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: grid;
    background: var(--paper);
    border-block: 1px solid var(--paper-line);
    box-shadow: var(--shadow-soft);
    /* Collapsed by default on small screens */
    overflow: hidden;
    max-height: 0;
    visibility: hidden;
    transition:
      max-height 0.4s var(--ease),
      visibility 0.4s var(--ease);
  }

  .nav.is-open {
    max-height: 26rem;
    visibility: visible;
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-xs) var(--shell-pad) var(--space-m);
  }

  .nav__list > li {
    border-bottom: 1px solid var(--paper-2);
  }

  .nav__link {
    display: block;
    padding-block: 0.95rem;
    font-size: var(--step-0);
  }

  .nav__link::after {
    display: none;
  }

  .nav__cta {
    margin: var(--space-s) 0 0;
    justify-content: center;
  }

  .section__head {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-xs);
  }

  .section__index {
    padding-top: 0;
  }

  .section__sub {
    grid-column: 1;
  }

  .phase {
    grid-template-columns: 3rem minmax(0, 1fr);
  }

  .phase:nth-child(even) {
    padding-left: 0;
  }

  .spec__row {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.2rem;
  }

  .spec__val {
    text-align: left;
  }

  .site-footer__top {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Motion & contrast preferences ------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-contrast: more) {
  :root {
    --muted: #4e4034;
    --paper-line: #b39c78;
    --muted-on-ink: #d8cab4;
  }
}

@media print {
  .atmosphere,
  .site-header,
  .emblem__ring,
  .nav-toggle {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }

  .legend,
  .motto,
  .site-footer {
    background: #fff !important;
    color: #000 !important;
  }
}