/* Tank Game Guide — "Steel Arena" design
   Chunky arcade-military UI: dark steel hero, blaze orange accents, offset shadows. */

:root {
  --ink: #20241c;
  --muted: #666552;
  --paper: #f2efe1;
  --sand: #e9e3cb;
  --steel: #22271e;
  --steel-2: #2d3326;
  --khaki: #d8d0b2;
  --line: #d3ccb0;
  --blaze: #ff7d1f;
  --blaze-dark: #d95f00;
  --blaze-ink: #3d1d00;
  --army: #5c7a3d;
  --army-dark: #3b5227;
  --danger: #e0472f;
  --danger-dark: #b03420;
  --mint: #e2ebcf;
  --white: #ffffff;
  --pop: 0 6px 0 rgba(24, 28, 19, 0.2);
  --pop-sm: 0 4px 0 rgba(24, 28, 19, 0.16);
  --shadow: 0 20px 50px rgba(24, 28, 19, 0.22);
  --radius-large: 26px;
  --radius-medium: 18px;
  --content: min(1160px, calc(100% - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  margin: 0;
  overflow-x: clip;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image: radial-gradient(circle at 12px 12px, rgba(32, 36, 28, 0.06) 1.5px, transparent 1.8px);
  background-size: 30px 30px;
  content: "";
  pointer-events: none;
}

a {
  color: inherit;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 4px;
}

button,
a,
input {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid #1e80ff;
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--white);
  transform: translateY(-150%);
}

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

.announcement {
  padding: 7px 20px;
  background: var(--steel);
  color: var(--khaki);
  font-size: 0.76rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 2px solid rgba(32, 36, 28, 0.16);
  background: rgba(242, 239, 225, 0.93);
  backdrop-filter: blur(18px);
}

.nav-shell {
  display: flex;
  width: var(--content);
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--steel);
  font-family: "Arial Black", "Arial Rounded MT Bold", sans-serif;
  font-size: 1.02rem;
  font-weight: 900;
  letter-spacing: 0.01em;
  text-decoration: none;
  text-transform: uppercase;
}

.brand-mark {
  position: relative;
  display: grid;
  width: 40px;
  height: 34px;
  place-items: center;
  border: 2px solid rgba(32, 36, 28, 0.3);
  border-radius: 9px;
  background: var(--army);
  box-shadow: var(--pop-sm);
}

.brand-mark::before {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--paper);
  box-shadow: inset -3px -3px 0 var(--khaki);
  content: "";
}

.brand-mark::after {
  position: absolute;
  top: 50%;
  right: -14px;
  width: 16px;
  height: 6px;
  margin-top: -3px;
  border-radius: 3px;
  background: var(--ink);
  content: "";
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.88rem;
  font-weight: 750;
}

.nav-links a {
  text-decoration: none;
}

.nav-links a:not(.nav-cta):hover {
  color: var(--blaze-dark);
}

.nav-cta {
  padding: 11px 18px;
  border: 2px solid rgba(32, 36, 28, 0.2);
  border-radius: 999px;
  background: var(--blaze);
  color: var(--blaze-ink);
  box-shadow: var(--pop-sm);
  font-weight: 850;
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  border: 2px solid var(--line);
  border-radius: 12px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--pop-sm);
  font: inherit;
  font-size: 1.25rem;
  cursor: pointer;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  padding: 84px 0 80px;
  background:
    radial-gradient(circle at 82% 8%, rgba(255, 125, 31, 0.16) 0 180px, transparent 181px),
    linear-gradient(180deg, #2c3325 0%, var(--steel) 70%, #1b2018 100%);
  color: var(--paper);
}

.hero::before {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(242, 239, 225, 0.045) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(90deg, rgba(242, 239, 225, 0.045) 0 1px, transparent 1px 56px);
  content: "";
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  width: var(--content);
  align-items: center;
  margin: 0 auto;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.86fr);
  gap: 60px;
}

.game-badge {
  display: inline-flex;
  align-items: center;
  margin: 0 0 20px;
  padding: 8px 15px;
  border: 2px solid rgba(242, 239, 225, 0.25);
  border-radius: 999px;
  background: rgba(242, 239, 225, 0.08);
  color: var(--khaki);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.05em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  padding: 6px 13px;
  border: 2px solid rgba(32, 36, 28, 0.2);
  border-radius: 999px;
  background: var(--blaze);
  color: var(--blaze-ink);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-dark .eyebrow {
  border-color: rgba(255, 125, 31, 0.4);
  background: rgba(255, 125, 31, 0.14);
  color: var(--blaze);
}

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

h1,
h2,
h3 {
  font-family: "Arial Black", "Arial Rounded MT Bold", "Trebuchet MS", sans-serif;
  line-height: 1.08;
}

h1 {
  max-width: 720px;
  margin-bottom: 22px;
  font-size: clamp(2.7rem, 5.2vw, 4.6rem);
  letter-spacing: -0.02em;
}

h1 .highlight {
  padding: 0 0.1em;
  background: linear-gradient(transparent 58%, rgba(255, 125, 31, 0.55) 58%);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  color: var(--blaze);
}

.hero-copy {
  max-width: 620px;
  margin-bottom: 30px;
  color: #c9c6ae;
  font-size: 1.1rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  font-weight: 850;
  line-height: 1;
  text-decoration: none;
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.button-primary {
  min-height: 62px;
  padding: 0 28px;
  border: 2px solid rgba(32, 36, 28, 0.35);
  background: var(--blaze);
  color: var(--blaze-ink);
  font-size: 1.05rem;
  box-shadow: 0 7px 0 var(--blaze-dark), 0 16px 30px rgba(217, 95, 0, 0.3);
}

.button-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 9px 0 var(--blaze-dark), 0 18px 32px rgba(217, 95, 0, 0.3);
}

.button-primary:active {
  transform: translateY(4px);
  box-shadow: 0 3px 0 var(--blaze-dark), 0 8px 16px rgba(217, 95, 0, 0.24);
}

.button-secondary {
  min-height: 50px;
  padding: 0 20px;
  border: 2px solid rgba(32, 36, 28, 0.2);
  background: var(--paper);
  color: var(--steel);
  box-shadow: var(--pop-sm);
  font-size: 0.94rem;
}

.button-secondary:hover {
  transform: translateY(-2px);
}

.button-secondary:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 rgba(24, 28, 19, 0.16);
}

.hero-note {
  margin: 22px 0 0;
  color: #9b9a84;
  font-size: 0.82rem;
}

/* ---------- Hero arena scene ---------- */

.arena-scene {
  position: relative;
  min-height: 470px;
  overflow: hidden;
  border: 3px solid rgba(242, 239, 225, 0.22);
  border-radius: var(--radius-large);
  background:
    radial-gradient(circle at 70% 20%, rgba(255, 125, 31, 0.12) 0 120px, transparent 121px),
    linear-gradient(180deg, #39422e 0 62%, #262c20 62% 100%);
  box-shadow: var(--pop), var(--shadow);
}

.arena-scene::before {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(242, 239, 225, 0.05) 0 1px, transparent 1px 44px),
    repeating-linear-gradient(90deg, rgba(242, 239, 225, 0.05) 0 1px, transparent 1px 44px);
  content: "";
}

.scene-label {
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 3;
  padding: 8px 13px;
  border: 2px solid rgba(242, 239, 225, 0.2);
  border-radius: 999px;
  background: rgba(34, 39, 30, 0.85);
  color: var(--khaki);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.crosshair {
  position: absolute;
  top: 64px;
  right: 56px;
  width: 92px;
  height: 92px;
  border: 3px solid rgba(255, 125, 31, 0.55);
  border-radius: 50%;
  animation: pulse 2.4s ease-in-out infinite;
}

.crosshair::before,
.crosshair::after {
  position: absolute;
  background: rgba(255, 125, 31, 0.55);
  content: "";
}

.crosshair::before {
  top: 50%;
  left: -14px;
  right: -14px;
  height: 3px;
  margin-top: -1.5px;
}

.crosshair::after {
  top: -14px;
  bottom: -14px;
  left: 50%;
  width: 3px;
  margin-left: -1.5px;
}

@keyframes pulse {
  0%,
  100% {
    scale: 1;
    opacity: 1;
  }
  50% {
    scale: 1.12;
    opacity: 0.6;
  }
}

.tank {
  position: absolute;
  bottom: 118px;
  left: 56px;
  width: 190px;
  height: 96px;
}

.tank-body {
  position: absolute;
  bottom: 18px;
  left: 0;
  width: 150px;
  height: 58px;
  border: 4px solid rgba(32, 36, 28, 0.5);
  border-radius: 14px;
  background: linear-gradient(180deg, #6d8c49, var(--army));
  box-shadow: inset -8px -8px 0 rgba(32, 36, 28, 0.25);
}

.tank-turret {
  position: absolute;
  bottom: 62px;
  left: 44px;
  width: 64px;
  height: 40px;
  border: 4px solid rgba(32, 36, 28, 0.5);
  border-radius: 12px 12px 6px 6px;
  background: linear-gradient(180deg, #7d9c55, #648140);
}

.tank-barrel {
  position: absolute;
  bottom: 76px;
  left: 102px;
  width: 88px;
  height: 16px;
  border: 3px solid rgba(32, 36, 28, 0.5);
  border-radius: 8px;
  background: #3c5228;
  transform-origin: left center;
  animation: aim 3.2s ease-in-out infinite;
}

@keyframes aim {
  0%,
  100% {
    rotate: 0deg;
  }
  50% {
    rotate: -6deg;
  }
}

.tank-track {
  position: absolute;
  bottom: 0;
  left: 6px;
  width: 138px;
  height: 26px;
  border: 3px solid rgba(32, 36, 28, 0.55);
  border-radius: 13px;
  background: repeating-linear-gradient(90deg, #2b2f24 0 14px, #3a4030 14px 20px);
}

.muzzle {
  position: absolute;
  bottom: 72px;
  left: 194px;
  width: 34px;
  height: 24px;
  border-radius: 50%;
  background: radial-gradient(circle, #ffd23d 0 30%, var(--blaze) 31% 60%, transparent 61%);
  animation: flash 1.6s ease-out infinite;
}

@keyframes flash {
  0%,
  70% {
    scale: 0.2;
    opacity: 0;
  }
  78% {
    scale: 1;
    opacity: 1;
  }
  100% {
    scale: 1.5;
    opacity: 0;
  }
}

.shape {
  position: absolute;
  border: 3px solid rgba(32, 36, 28, 0.4);
  box-shadow: 0 8px 0 rgba(24, 28, 19, 0.25);
  animation: float 3.4s ease-in-out infinite;
}

.shape-square {
  right: 70px;
  bottom: 210px;
  width: 52px;
  height: 52px;
  border-radius: 10px;
  background: var(--blaze);
}

.shape-triangle {
  right: 170px;
  bottom: 130px;
  width: 58px;
  height: 52px;
  border: 0;
  background: #ffd23d;
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
  animation-delay: -1.2s;
}

.shape-pentagon {
  right: 60px;
  bottom: 96px;
  width: 56px;
  height: 54px;
  background: var(--army);
  clip-path: polygon(50% 0, 100% 38%, 81% 100%, 19% 100%, 0 38%);
  animation-delay: -2.1s;
}

@keyframes float {
  0%,
  100% {
    translate: 0 0;
  }
  50% {
    translate: 0 -10px;
  }
}

.scene-chip {
  position: absolute;
  z-index: 3;
  border: 2px solid rgba(242, 239, 225, 0.2);
  border-radius: 14px;
  background: rgba(34, 39, 30, 0.88);
  color: var(--paper);
  box-shadow: var(--pop-sm);
}

.chip-controls {
  right: 16px;
  bottom: 16px;
  left: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 14px;
  gap: 10px;
  font-size: 0.82rem;
  font-weight: 850;
}

.chip-controls kbd {
  padding: 3px 9px;
  border: 2px solid rgba(242, 239, 225, 0.3);
  border-radius: 8px;
  background: rgba(242, 239, 225, 0.1);
  color: var(--blaze);
  font-family: inherit;
}

.chip-immunity {
  top: 84px;
  left: 20px;
  display: grid;
  max-width: 220px;
  padding: 11px 13px;
  gap: 1px;
  font-size: 0.76rem;
  rotate: -1.5deg;
}

.chip-immunity strong {
  color: var(--blaze);
}

.chip-immunity span {
  color: #b9b79e;
}

/* ---------- Trust strip ---------- */

.trust-strip {
  position: relative;
  z-index: 2;
  display: flex;
  width: var(--content);
  align-items: center;
  justify-content: center;
  margin: -30px auto 0;
  padding: 18px 24px;
  border: 2px solid rgba(32, 36, 28, 0.16);
  border-radius: 18px;
  background: var(--paper);
  box-shadow: var(--pop);
  color: var(--muted);
  font-size: 0.84rem;
  flex-wrap: wrap;
  gap: 6px 0;
}

.trust-strip span {
  display: inline-flex;
  align-items: center;
  margin: 0 14px;
}

.trust-strip span::before {
  margin-right: 8px;
  color: var(--blaze-dark);
  font-size: 0.7rem;
  content: "●";
}

.trust-strip strong {
  margin-right: 5px;
  color: var(--ink);
}

/* ---------- Sections ---------- */

.section {
  padding: 96px 0;
}

.section-tinted {
  background: var(--sand);
}

.section-dark {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 88% 10%, rgba(255, 125, 31, 0.12) 0 130px, transparent 131px),
    var(--steel);
  color: var(--paper);
}

.section-shell {
  position: relative;
  z-index: 1;
  width: var(--content);
  margin: 0 auto;
}

.section-heading {
  display: grid;
  align-items: end;
  margin-bottom: 44px;
  grid-template-columns: minmax(0, 0.8fr) minmax(280px, 0.55fr);
  gap: 56px;
}

.section-heading h2,
.page-hero h1 {
  margin-bottom: 0;
  font-size: clamp(2.1rem, 4.2vw, 3.5rem);
  letter-spacing: -0.02em;
}

.section-heading p {
  margin-bottom: 4px;
  color: var(--muted);
}

.section-dark .section-heading p {
  color: #b0ad94;
}

/* Core loop cards */

.loop-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.loop-card {
  position: relative;
  min-height: 252px;
  padding: 26px 24px;
  overflow: hidden;
  border: 2px solid rgba(32, 36, 28, 0.16);
  border-radius: var(--radius-medium);
  background: var(--white);
  box-shadow: var(--pop);
  transition: translate 160ms ease;
}

.loop-card:hover {
  translate: 0 -4px;
}

.loop-card::after {
  position: absolute;
  right: -12px;
  bottom: -34px;
  color: rgba(92, 122, 61, 0.12);
  font-family: "Arial Black", sans-serif;
  font-size: 8.5rem;
  font-weight: 900;
  line-height: 1;
  content: attr(data-step);
}

.step-badge {
  position: absolute;
  top: 18px;
  right: 18px;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 2px solid rgba(32, 36, 28, 0.2);
  border-radius: 50%;
  background: var(--blaze);
  color: var(--blaze-ink);
  box-shadow: 0 3px 0 var(--blaze-dark);
  font-size: 0.86rem;
  font-weight: 900;
}

.loop-icon {
  display: grid;
  width: 54px;
  height: 54px;
  margin-bottom: 28px;
  place-items: center;
  border: 2px solid rgba(32, 36, 28, 0.14);
  border-radius: 14px;
  background: var(--sand);
  box-shadow: var(--pop-sm);
  font-size: 1.6rem;
}

.loop-card:nth-child(2) .loop-icon,
.loop-card:nth-child(4) .loop-icon {
  background: var(--mint);
}

.loop-card h3 {
  margin-bottom: 10px;
  font-size: 1.16rem;
}

.loop-card p {
  position: relative;
  z-index: 1;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.89rem;
}

.loop-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  margin-top: 30px;
  padding: 20px 26px;
  border: 2px dashed rgba(92, 122, 61, 0.5);
  border-radius: var(--radius-medium);
  background: rgba(226, 235, 207, 0.6);
}

.loop-cta p {
  margin: 0;
  color: var(--muted);
}

.loop-cta a {
  color: var(--army-dark);
  font-weight: 850;
  white-space: nowrap;
}

/* Directory cards */

.dir-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.dir-card {
  position: relative;
  display: grid;
  padding: 26px 24px;
  border: 2px solid rgba(32, 36, 28, 0.16);
  border-radius: var(--radius-medium);
  background: var(--white);
  box-shadow: var(--pop);
  text-decoration: none;
  transition: translate 160ms ease;
  gap: 8px;
}

.dir-card:hover {
  translate: 0 -4px;
}

.dir-card .dir-icon {
  display: grid;
  width: 50px;
  height: 50px;
  margin-bottom: 12px;
  place-items: center;
  border: 2px solid rgba(32, 36, 28, 0.14);
  border-radius: 14px;
  background: var(--sand);
  box-shadow: var(--pop-sm);
  font-size: 1.5rem;
}

.dir-card:nth-child(even) .dir-icon {
  background: var(--mint);
}

.dir-card h3 {
  margin: 0;
  font-size: 1.16rem;
}

.dir-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.89rem;
}

.dir-card .dir-arrow {
  margin-top: 10px;
  color: var(--blaze-dark);
  font-size: 0.86rem;
  font-weight: 850;
}

/* Codes band (homepage) */

.codes-band {
  width: var(--content);
  margin: 0 auto;
  padding: 36px 38px;
  border: 3px solid rgba(32, 36, 28, 0.3);
  border-radius: var(--radius-large);
  background:
    radial-gradient(circle at 94% 8%, rgba(255, 210, 61, 0.25) 0 80px, transparent 81px),
    linear-gradient(120deg, var(--blaze) 0%, #f06c0d 100%);
  box-shadow: 0 8px 0 var(--blaze-dark);
  color: var(--blaze-ink);
}

.codes-band h2 {
  margin-bottom: 6px;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  letter-spacing: -0.02em;
}

.codes-band > p {
  margin: 0 0 20px;
  max-width: 720px;
  color: #5c2c00;
  font-size: 0.95rem;
}

.code-chip-row {
  display: flex;
  margin-bottom: 20px;
  gap: 12px;
  flex-wrap: wrap;
}

.code-chip {
  display: inline-grid;
  padding: 12px 18px;
  border: 2px solid rgba(32, 36, 28, 0.35);
  border-radius: 14px;
  background: var(--paper);
  box-shadow: var(--pop-sm);
  gap: 2px;
}

.code-chip strong {
  font-family: "Arial Black", sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.code-chip span {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 750;
}

/* Progression route */

.route-line {
  display: grid;
  align-items: stretch;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.route-step {
  position: relative;
  padding: 26px 24px;
  border: 2px solid rgba(242, 239, 225, 0.16);
  border-radius: var(--radius-medium);
  background: rgba(242, 239, 225, 0.05);
}

.level-chip {
  display: inline-block;
  margin-bottom: 16px;
  padding: 6px 12px;
  border: 2px solid rgba(255, 125, 31, 0.5);
  border-radius: 999px;
  background: rgba(255, 125, 31, 0.14);
  color: var(--blaze);
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.3);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.route-step h3 {
  margin-bottom: 10px;
  font-size: 1.14rem;
}

.route-step p {
  margin-bottom: 0;
  color: #b0ad94;
  font-size: 0.88rem;
}

.route-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  margin-top: 34px;
  padding: 24px 28px;
  border: 2px solid rgba(242, 239, 225, 0.18);
  border-radius: var(--radius-medium);
  background: rgba(242, 239, 225, 0.06);
}

.route-cta p {
  margin: 0;
  color: #c9c6ae;
}

.route-cta a {
  color: var(--blaze);
  font-weight: 850;
  white-space: nowrap;
}

/* Mistakes */

.mistake-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.mistake-card {
  position: relative;
  padding: 28px 28px 28px 88px;
  border: 2px solid #ecc9a8;
  border-radius: var(--radius-medium);
  background: var(--white);
  box-shadow: var(--pop-sm);
}

.mistake-badge {
  position: absolute;
  top: 26px;
  left: 26px;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 2px solid rgba(32, 36, 28, 0.2);
  border-radius: 50%;
  background: var(--danger);
  color: var(--white);
  box-shadow: 0 4px 0 var(--danger-dark);
  font-size: 1.05rem;
  font-weight: 900;
}

.mistake-card h3 {
  margin-bottom: 10px;
  font-size: 1.16rem;
}

.mistake-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

/* FAQ */

.faq-list {
  display: grid;
  max-width: 880px;
  margin: 0 auto;
  gap: 14px;
}

.faq-list details {
  border: 2px solid rgba(32, 36, 28, 0.15);
  border-radius: 16px;
  background: var(--white);
  box-shadow: var(--pop-sm);
}

.faq-list summary {
  position: relative;
  padding: 20px 64px 20px 24px;
  font-family: "Arial Black", "Trebuchet MS", sans-serif;
  font-size: 0.98rem;
  font-weight: 850;
  cursor: pointer;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  position: absolute;
  top: 15px;
  right: 20px;
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 2px solid rgba(32, 36, 28, 0.2);
  border-radius: 50%;
  background: var(--blaze);
  color: var(--blaze-ink);
  box-shadow: 0 3px 0 var(--blaze-dark);
  content: "+";
  font-weight: 900;
}

.faq-list details[open] summary::after {
  content: "–";
}

.faq-list details p {
  padding: 0 24px 20px;
  margin: 0;
  color: var(--muted);
}

/* Closing + footer */

.closing-card {
  display: grid;
  width: var(--content);
  align-items: center;
  margin: 0 auto 84px;
  padding: 46px;
  border: 3px solid rgba(32, 36, 28, 0.3);
  border-radius: var(--radius-large);
  background:
    radial-gradient(circle at 92% 16%, rgba(255, 210, 61, 0.28) 0 66px, transparent 67px),
    var(--blaze);
  box-shadow: 0 10px 0 var(--blaze-dark);
  color: var(--blaze-ink);
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 36px;
}

.closing-card h2 {
  margin-bottom: 8px;
  font-size: clamp(1.9rem, 4vw, 3rem);
  letter-spacing: -0.02em;
}

.closing-card p {
  margin: 0;
  color: #5c2c00;
}

.closing-card .button-secondary {
  border-color: rgba(32, 36, 28, 0.3);
  background: var(--steel);
  color: var(--paper);
}

.site-footer {
  padding: 38px 0;
  border-top: 2px solid var(--line);
  background: var(--sand);
}

.footer-shell {
  display: flex;
  width: var(--content);
  align-items: center;
  justify-content: space-between;
  margin: 0 auto;
  gap: 24px;
}

.footer-shell p {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.footer-links {
  display: flex;
  gap: 16px;
  font-size: 0.8rem;
  font-weight: 750;
  flex-wrap: wrap;
}

/* ---------- Subpage components ---------- */

.page-hero {
  position: relative;
  overflow: hidden;
  padding: 64px 0 56px;
  background:
    radial-gradient(circle at 85% 10%, rgba(255, 125, 31, 0.14) 0 150px, transparent 151px),
    linear-gradient(180deg, #2c3325 0%, var(--steel) 100%);
  color: var(--paper);
}

.page-hero::before {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(242, 239, 225, 0.04) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(90deg, rgba(242, 239, 225, 0.04) 0 1px, transparent 1px 56px);
  content: "";
  pointer-events: none;
}

.page-hero-shell {
  position: relative;
  z-index: 1;
  width: min(880px, calc(100% - 40px));
  margin: 0 auto;
  text-align: center;
}

.page-hero h1 {
  margin-right: auto;
  margin-bottom: 18px;
  margin-left: auto;
}

.page-hero .hero-copy {
  margin-right: auto;
  margin-left: auto;
  font-size: 1.05rem;
}

.page-hero .hero-actions {
  justify-content: center;
}

.meta-row {
  display: flex;
  justify-content: center;
  margin-top: 22px;
  gap: 10px;
  flex-wrap: wrap;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 13px;
  border: 2px solid rgba(242, 239, 225, 0.2);
  border-radius: 999px;
  background: rgba(242, 239, 225, 0.08);
  color: #b9b79e;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.meta-chip strong {
  margin-left: 5px;
  color: var(--paper);
}

.prose {
  max-width: 780px;
}

.prose p {
  color: var(--muted);
}

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

.split-grid {
  display: grid;
  align-items: start;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
}

/* Tables */

.table-wrap {
  overflow-x: auto;
  border: 2px solid rgba(32, 36, 28, 0.18);
  border-radius: var(--radius-medium);
  background: var(--white);
  box-shadow: var(--pop);
}

.fact-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.fact-table th {
  padding: 15px 18px;
  border-bottom: 2px solid rgba(32, 36, 28, 0.18);
  background: var(--blaze);
  color: var(--blaze-ink);
  font-family: "Arial Black", "Trebuchet MS", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-align: left;
  text-transform: uppercase;
}

.fact-table td {
  padding: 15px 18px;
  border-bottom: 2px solid rgba(32, 36, 28, 0.08);
  color: var(--muted);
  vertical-align: top;
}

.fact-table tr:last-child td {
  border-bottom: 0;
}

.fact-table td:first-child {
  color: var(--ink);
  font-weight: 850;
}

.code-tag {
  display: inline-block;
  padding: 4px 11px;
  border: 2px solid rgba(32, 36, 28, 0.2);
  border-radius: 9px;
  background: var(--steel);
  color: var(--blaze);
  font-family: "Arial Black", monospace;
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

/* Copy-code buttons (codes page) */

.copy-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.copy-card {
  display: grid;
  padding: 24px;
  border: 2px solid rgba(32, 36, 28, 0.18);
  border-radius: var(--radius-medium);
  background: var(--white);
  box-shadow: var(--pop);
  gap: 12px;
}

.copy-card .reward {
  color: var(--muted);
  font-size: 0.9rem;
}

.copy-card .reward strong {
  color: var(--army-dark);
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  padding: 0 16px;
  border: 2px solid rgba(32, 36, 28, 0.3);
  border-radius: 12px;
  background: var(--steel);
  color: var(--paper);
  box-shadow: var(--pop-sm);
  font: inherit;
  font-family: "Arial Black", monospace;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  gap: 12px;
}

.copy-btn:hover {
  transform: translateY(-2px);
}

.copy-btn:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 rgba(24, 28, 19, 0.2);
}

.copy-btn [data-copy-label] {
  color: var(--blaze);
}

.copy-btn .copy-hint {
  font-family: Inter, sans-serif;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #b9b79e;
}

/* Steps */

.steps-list {
  display: grid;
  gap: 14px;
  counter-reset: steps;
}

.step-row {
  position: relative;
  display: grid;
  align-items: start;
  padding: 22px 24px 22px 82px;
  border: 2px solid rgba(32, 36, 28, 0.15);
  border-radius: var(--radius-medium);
  background: var(--white);
  box-shadow: var(--pop-sm);
  counter-increment: steps;
  gap: 6px;
}

.step-row::before {
  position: absolute;
  top: 20px;
  left: 22px;
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 2px solid rgba(32, 36, 28, 0.2);
  border-radius: 50%;
  background: var(--blaze);
  color: var(--blaze-ink);
  box-shadow: 0 3px 0 var(--blaze-dark);
  font-weight: 900;
  content: counter(steps);
}

.step-row h3 {
  margin: 0;
  font-size: 1.1rem;
}

.step-row p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* Callouts */

.callout {
  padding: 20px 24px;
  border: 2px dashed rgba(92, 122, 61, 0.5);
  border-radius: var(--radius-medium);
  background: rgba(226, 235, 207, 0.6);
  color: var(--muted);
  font-size: 0.92rem;
}

.callout strong {
  color: var(--army-dark);
}

.callout-warn {
  border-color: rgba(224, 71, 47, 0.5);
  background: rgba(224, 71, 47, 0.07);
}

.callout-warn strong {
  color: var(--danger-dark);
}

.callout p {
  margin: 0 0 8px;
}

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

/* Feature cards */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature-grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.feature-card {
  padding: 26px 24px;
  border: 2px solid rgba(32, 36, 28, 0.15);
  border-radius: var(--radius-medium);
  background: var(--white);
  box-shadow: var(--pop-sm);
}

.feature-card h3 {
  margin-bottom: 10px;
  font-size: 1.12rem;
}

.feature-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.feature-card .loop-icon {
  margin-bottom: 20px;
}

/* Beginner guide page (checklist) */

.guide-shell {
  display: grid;
  width: var(--content);
  align-items: start;
  margin: 0 auto 96px;
  padding-top: 56px;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 36px;
}

.guide-main {
  display: grid;
  gap: 18px;
}

.progress-card,
.guide-step,
.guide-aside {
  border: 2px solid rgba(32, 36, 28, 0.15);
  background: var(--white);
  box-shadow: var(--pop-sm);
}

.progress-card {
  padding: 22px 24px;
  border-radius: 18px;
}

.progress-copy {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: 20px;
}

.progress-copy strong {
  font-family: "Arial Black", "Trebuchet MS", sans-serif;
}

.progress-copy span {
  color: var(--muted);
  font-size: 0.82rem;
}

.progress-track {
  height: 12px;
  overflow: hidden;
  border: 2px solid rgba(32, 36, 28, 0.14);
  border-radius: 999px;
  background: var(--sand);
}

.progress-bar {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: repeating-linear-gradient(-45deg, var(--blaze) 0 12px, #ff9a4d 12px 24px);
  transition: width 240ms ease;
}

.guide-step {
  display: grid;
  padding: 28px;
  border-radius: var(--radius-medium);
  grid-template-columns: auto minmax(0, 1fr);
  gap: 20px;
}

.step-check {
  position: relative;
  display: block;
  width: 48px;
  height: 48px;
}

.step-check input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.step-check span {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 3px solid #c4bda0;
  border-radius: 13px;
  background: var(--paper);
  box-shadow: var(--pop-sm);
  color: transparent;
  font-size: 1.2rem;
  font-weight: 900;
  cursor: pointer;
  transition: transform 140ms ease;
}

.step-check:hover span {
  transform: translateY(-2px);
}

.step-check input:focus-visible + span {
  outline: 3px solid #1e80ff;
  outline-offset: 4px;
}

.step-check input:checked + span {
  border-color: var(--army-dark);
  background: var(--army);
  box-shadow: 0 4px 0 var(--army-dark);
  color: var(--white);
}

.guide-step small {
  display: inline-block;
  margin-bottom: 8px;
  padding: 4px 11px;
  border-radius: 999px;
  background: var(--mint);
  color: var(--army-dark);
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.guide-step h2 {
  margin-bottom: 10px;
  font-size: 1.4rem;
}

.guide-step p {
  margin-bottom: 0;
  color: var(--muted);
}

.guide-aside {
  position: sticky;
  top: 100px;
  padding: 25px;
  border-radius: var(--radius-medium);
}

.guide-aside h2 {
  margin-bottom: 18px;
  font-size: 1.25rem;
}

.guide-aside ol {
  padding: 0;
  margin: 0 0 24px;
  list-style: none;
  counter-reset: guide-nav;
}

.guide-aside li {
  counter-increment: guide-nav;
}

.guide-aside a {
  display: grid;
  padding: 8px 0;
  color: var(--muted);
  font-size: 0.86rem;
  text-decoration: none;
  grid-template-columns: 26px 1fr;
}

.guide-aside a:hover {
  color: var(--army-dark);
}

.guide-aside a::before {
  color: var(--army);
  font-weight: 850;
  content: counter(guide-nav, decimal-leading-zero);
}

.guide-aside .aside-note {
  padding: 14px;
  border: 2px solid rgba(32, 36, 28, 0.12);
  border-radius: 12px;
  background: var(--sand);
  color: #6d5c2e;
  font-size: 0.78rem;
}

/* ---------- Motion & responsive ---------- */

@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;
  }
}

@media (max-width: 980px) {
  .hero {
    padding-top: 64px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .hero-content {
    max-width: 720px;
  }

  .arena-scene {
    min-height: 430px;
  }

  .loop-grid,
  .route-line {
    grid-template-columns: repeat(2, 1fr);
  }

  .dir-grid,
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .split-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .guide-shell {
    grid-template-columns: 1fr;
  }

  .guide-aside {
    position: static;
    order: -1;
  }

  .guide-aside ol {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 20px;
  }
}

@media (max-width: 720px) {
  :root {
    --content: min(100% - 28px, 1160px);
    --radius-large: 22px;
  }

  .announcement {
    font-size: 0.64rem;
  }

  .nav-shell {
    min-height: 62px;
  }

  .menu-button {
    display: inline-grid;
    place-items: center;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    right: 14px;
    left: 14px;
    display: none;
    padding: 16px;
    border: 2px solid rgba(32, 36, 28, 0.18);
    border-radius: 16px;
    background: var(--paper);
    box-shadow: var(--pop), var(--shadow);
    gap: 0;
  }

  .nav-links[data-open="true"] {
    display: grid;
  }

  .nav-links a {
    padding: 12px;
  }

  .nav-cta {
    margin-top: 8px;
    text-align: center;
  }

  .hero {
    padding: 48px 0 60px;
  }

  .game-badge {
    font-size: 0.68rem;
  }

  h1 {
    font-size: clamp(2.3rem, 10.5vw, 3.4rem);
  }

  .hero-copy {
    font-size: 1rem;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button-primary,
  .button-secondary {
    width: 100%;
  }

  .arena-scene {
    min-height: 360px;
  }

  .tank {
    left: 24px;
    scale: 0.72;
    transform-origin: bottom left;
  }

  .muzzle {
    display: none;
  }

  .crosshair {
    top: 46px;
    right: 26px;
    scale: 0.72;
  }

  .shape-square {
    right: 30px;
    bottom: 190px;
    scale: 0.8;
  }

  .shape-triangle {
    right: 120px;
    scale: 0.8;
  }

  .shape-pentagon {
    right: 28px;
    scale: 0.8;
  }

  .chip-immunity {
    display: none;
  }

  .chip-controls {
    font-size: 0.74rem;
    gap: 6px;
  }

  .trust-strip {
    margin-top: -24px;
    padding: 16px 18px;
    font-size: 0.78rem;
  }

  .trust-strip span {
    margin: 3px 8px;
  }

  .section {
    padding: 72px 0;
  }

  .section-heading {
    margin-bottom: 30px;
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .loop-grid,
  .route-line,
  .mistake-grid,
  .dir-grid,
  .feature-grid,
  .feature-grid-2,
  .copy-grid {
    grid-template-columns: 1fr;
  }

  .loop-card {
    min-height: 0;
  }

  .loop-cta,
  .route-cta {
    align-items: flex-start;
    flex-direction: column;
  }

  .loop-cta a,
  .route-cta a {
    white-space: normal;
  }

  .mistake-card {
    padding: 82px 22px 24px;
  }

  .mistake-badge {
    top: 22px;
    left: 22px;
  }

  .codes-band {
    padding: 26px 22px;
  }

  .page-hero {
    padding: 46px 0 42px;
  }

  .guide-shell {
    padding-top: 40px;
    gap: 22px;
    margin-bottom: 72px;
  }

  .guide-aside ol {
    grid-template-columns: 1fr;
  }

  .guide-step {
    padding: 22px 20px;
    grid-template-columns: 1fr;
  }

  .progress-copy {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }

  .step-row {
    padding: 76px 20px 20px;
  }

  .step-row::before {
    top: 20px;
    left: 20px;
  }

  .fact-table {
    font-size: 0.85rem;
  }

  .closing-card {
    align-items: flex-start;
    margin-bottom: 56px;
    padding: 30px 24px;
    grid-template-columns: 1fr;
  }

  .footer-shell {
    align-items: flex-start;
    flex-direction: column;
  }
}