/* 币安飞 — Binance Fly
   BNB-native takeoff identity: yellow / black / off-white / electric green */

:root {
  --yellow: #f0b90b;
  --yellow-hot: #fcd535;
  --yellow-dim: #c99400;
  --black: #070707;
  --black-2: #0e0e0e;
  --black-3: #161616;
  --offwhite: #f5f0e6;
  --offwhite-dim: #cfc8b8;
  --green: #0ecb81;
  --green-dim: #0a9b62;
  --warning: #f0b90b;
  --line: rgba(240, 185, 11, 0.22);
  --line-soft: rgba(245, 240, 230, 0.08);
  --radius: 2px;
  --header-h: 68px;
  --font-display: "Orbitron", "Noto Sans SC", sans-serif;
  --font-body: "Space Grotesk", "Noto Sans SC", sans-serif;
  --font-cn: "Noto Sans SC", "Space Grotesk", sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-takeoff: cubic-bezier(0.33, 1, 0.68, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  font-family: var(--font-body);
  background: var(--black);
  color: var(--offwhite);
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

button {
  font: inherit;
  border: none;
  cursor: pointer;
  background: none;
  color: inherit;
}

code {
  font-family: ui-monospace, "Cascadia Code", "SF Mono", Menlo, monospace;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 1000;
  background: var(--yellow);
  color: var(--black);
  padding: 0.6rem 1rem;
  font-weight: 700;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 12px;
}

/* Focus */
:focus-visible {
  outline: 2px solid var(--yellow-hot);
  outline-offset: 3px;
}

/* Top runway stripe */
.runway-stripe {
  position: fixed;
  inset: 0 0 auto 0;
  height: 3px;
  z-index: 200;
  background: repeating-linear-gradient(
    90deg,
    var(--yellow) 0 18px,
    var(--black) 18px 36px
  );
  pointer-events: none;
}

/* ——— Header ——— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(7, 7, 7, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.site-header.is-scrolled {
  background: rgba(7, 7, 7, 0.92);
  border-bottom-color: var(--line);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid var(--yellow);
}

.brand-name {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  color: var(--yellow-hot);
}

.nav-desktop {
  display: none;
  gap: 1.75rem;
  margin-left: 0.5rem;
}

.nav-desktop a {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--offwhite-dim);
  transition: color 0.2s;
}

.nav-desktop a:hover {
  color: var(--yellow-hot);
}

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--offwhite);
  transition: transform 0.25s var(--ease-out), opacity 0.2s;
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem 1.25rem 1.25rem;
  background: rgba(7, 7, 7, 0.98);
  border-bottom: 1px solid var(--line);
}

.mobile-nav[hidden] {
  display: none;
}

.mobile-nav a {
  padding: 0.85rem 0.5rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--line-soft);
  min-height: 48px;
  display: flex;
  align-items: center;
}

.mobile-nav .btn-buy {
  margin-top: 0.5rem;
  justify-content: center;
  border-bottom: none;
}

/* ——— Buttons ——— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 48px;
  padding: 0.7rem 1.35rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition:
    transform 0.25s var(--ease-takeoff),
    background 0.2s,
    color 0.2s,
    border-color 0.2s,
    box-shadow 0.25s;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-3px);
}

.btn:active {
  transform: translateY(-1px);
}

.btn-sm {
  min-height: 40px;
  padding: 0.5rem 1rem;
  font-size: 0.7rem;
}

.btn-lg {
  min-height: 56px;
  padding: 0.9rem 1.75rem;
  font-size: 0.85rem;
}

.btn-buy {
  background: var(--yellow);
  color: var(--black);
  border-color: var(--yellow-hot);
  box-shadow:
    0 0 0 0 rgba(240, 185, 11, 0.4),
    0 8px 24px rgba(240, 185, 11, 0.18);
  position: relative;
}

.btn-buy::after {
  content: "";
  position: absolute;
  inset: -1px;
  border: 1px solid transparent;
  pointer-events: none;
  transition: border-color 0.2s, inset 0.2s;
}

.btn-buy:hover {
  background: var(--yellow-hot);
  box-shadow:
    0 0 28px rgba(240, 185, 11, 0.35),
    0 12px 28px rgba(240, 185, 11, 0.25);
}

.btn-buy:hover::after {
  inset: -4px -2px -2px;
  border-color: var(--green);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 92% 100%, 0 100%);
}

.header-actions .btn-buy {
  box-shadow: 0 0 18px rgba(240, 185, 11, 0.35);
  font-size: 0.75rem;
  min-width: 72px;
}

.btn-outline {
  background: transparent;
  color: var(--offwhite);
  border-color: var(--yellow);
}

.btn-outline:hover {
  background: rgba(240, 185, 11, 0.1);
  color: var(--yellow-hot);
}

.btn-ghost {
  background: transparent;
  color: var(--offwhite-dim);
  border-color: var(--line-soft);
}

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

.btn-copy {
  flex-shrink: 0;
}

.btn-copy.is-copied {
  background: var(--green);
  border-color: var(--green);
  color: var(--black);
}

/* ——— Sections ——— */
.section-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section-head {
  margin-bottom: 2.5rem;
}

.section-kicker {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: var(--green);
  margin-bottom: 0.65rem;
}

.section-head h2 {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.section-sub {
  margin-top: 0.75rem;
  color: var(--offwhite-dim);
  max-width: 36rem;
  font-size: 0.98rem;
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(36px) skewY(0.5deg);
  transition:
    opacity 0.8s var(--ease-out),
    transform 0.8s var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0) skewY(0);
}

/* ——— Hero ——— */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  padding: 2rem 0 4rem;
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 50% at 20% 40%, rgba(240, 185, 11, 0.12), transparent 60%),
    radial-gradient(ellipse 50% 40% at 85% 20%, rgba(14, 203, 129, 0.06), transparent 55%),
    linear-gradient(180deg, var(--black) 0%, var(--black-2) 100%);
}

.hero-atmosphere {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.cloud {
  position: absolute;
  border-radius: 50%;
  background: rgba(245, 240, 230, 0.04);
  filter: blur(28px);
  animation: drift 28s ease-in-out infinite;
}

.cloud-1 {
  width: 280px;
  height: 90px;
  top: 12%;
  left: -5%;
}

.cloud-2 {
  width: 360px;
  height: 110px;
  top: 55%;
  right: -8%;
  animation-duration: 36s;
  animation-delay: -8s;
}

.cloud-3 {
  width: 200px;
  height: 70px;
  bottom: 18%;
  left: 35%;
  animation-duration: 42s;
  animation-delay: -14s;
}

@keyframes drift {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(40px); }
}

.flight-paths {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.45;
}

.path-line {
  stroke: var(--yellow);
  stroke-width: 1.25;
  stroke-dasharray: 6 14;
  opacity: 0.35;
  animation: dash-move 18s linear infinite;
}

.path-b {
  stroke: var(--green);
  opacity: 0.22;
  animation-duration: 24s;
  animation-direction: reverse;
}

.path-c {
  opacity: 0.18;
  animation-duration: 30s;
}

@keyframes dash-move {
  to { stroke-dashoffset: -200; }
}

.coord {
  position: absolute;
  font-family: var(--font-display);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  color: rgba(245, 240, 230, 0.28);
}

.coord-1 { top: 18%; right: 8%; }
.coord-2 { top: 42%; left: 4%; color: rgba(14, 203, 129, 0.4); }
.coord-3 { bottom: 28%; right: 12%; }

.altitude-marks {
  position: absolute;
  left: 1.25rem;
  top: 20%;
  bottom: 25%;
  width: 2px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  opacity: 0.35;
}

.altitude-marks span {
  width: 14px;
  height: 1px;
  background: var(--yellow);
  display: block;
}

.altitude-marks span:nth-child(odd) {
  width: 8px;
  background: var(--green);
}

.hero-grid {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: grid;
  gap: 2rem;
  align-items: center;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  order: -1;
}

.hero-glow {
  position: absolute;
  width: 70%;
  height: 70%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240, 185, 11, 0.28), transparent 68%);
  filter: blur(20px);
  animation: glow-pulse 4.5s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.08); }
}

.hero-mascot {
  position: relative;
  z-index: 1;
  width: min(100%, 420px);
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.55));
  animation: float-fly 5.5s ease-in-out infinite;
  will-change: transform;
}

@keyframes float-fly {
  0%, 100% { transform: translateY(0) rotate(-1.5deg); }
  40% { transform: translateY(-14px) rotate(1deg); }
  70% { transform: translateY(-8px) rotate(-0.5deg); }
}

.preflight-badge {
  position: absolute;
  bottom: 8%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.85rem;
  background: rgba(7, 7, 7, 0.85);
  border: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  color: var(--yellow-hot);
  white-space: nowrap;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: 0 0 8px var(--yellow);
  animation: blink 1.6s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}

.hero-copy {
  text-align: center;
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.24em;
  color: var(--green);
  margin-bottom: 0.85rem;
}

.hero-title {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(3.4rem, 14vw, 7.5rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--yellow-hot);
  text-shadow: 0 0 60px rgba(240, 185, 11, 0.25);
}

.hero-secondary {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1rem, 3vw, 1.45rem);
  letter-spacing: 0.28em;
  margin-top: 0.65rem;
  color: var(--offwhite);
}

.hero-ticker {
  display: inline-block;
  margin-top: 0.85rem;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--line);
  background: rgba(240, 185, 11, 0.06);
  font-family: var(--font-cn);
  font-weight: 700;
  font-size: 1rem;
  color: var(--yellow);
}

.hero-lead {
  margin: 1.35rem auto 0;
  max-width: 26rem;
  font-size: 1.05rem;
  color: var(--offwhite-dim);
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
  margin-top: 1.75rem;
}

.hero-ctas .btn-buy {
  min-width: 140px;
  font-size: 0.9rem;
  min-height: 52px;
}

.ca-inline {
  margin: 1.75rem auto 0;
  max-width: 420px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: var(--black-3);
  border: 1px solid var(--line);
  border-left: 3px solid var(--yellow);
}

.ca-inline-meta {
  flex: 1;
  min-width: 0;
  text-align: left;
}

.ca-label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  color: var(--offwhite-dim);
  margin-bottom: 0.25rem;
}

.ca-value {
  font-size: 0.95rem;
  color: var(--yellow-hot);
  word-break: break-all;
}

.hero-runway {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 48px;
  background: linear-gradient(180deg, transparent, rgba(240, 185, 11, 0.05));
  overflow: hidden;
}

.runway-centerline {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 3px;
  background: repeating-linear-gradient(
    90deg,
    var(--yellow) 0 28px,
    transparent 28px 52px
  );
  opacity: 0.4;
  animation: runway-scroll 2.2s linear infinite;
}

@keyframes runway-scroll {
  to { background-position: 80px 0; }
}

/* ——— Story ——— */
.story {
  padding: 6rem 0 5rem;
  background:
    linear-gradient(180deg, var(--black-2), var(--black)),
    var(--black);
  border-top: 1px solid var(--line-soft);
}

.story-beats {
  list-style: none;
  display: grid;
  gap: 1rem;
  margin-bottom: 3rem;
}

.beat {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  align-items: center;
  padding: 1.5rem 1.25rem;
  background: var(--black-3);
  border: 1px solid var(--line-soft);
  border-left: 4px solid var(--yellow);
  position: relative;
  overflow: hidden;
}

.beat::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, transparent 50%, rgba(240, 185, 11, 0.06) 50%);
  pointer-events: none;
}

.beat[data-beat="02"] {
  border-left-color: var(--offwhite-dim);
}

.beat[data-beat="03"] {
  border-left-color: var(--green);
  background: linear-gradient(90deg, rgba(14, 203, 129, 0.06), var(--black-3));
}

.beat-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 6vw, 3rem);
  color: var(--yellow);
  line-height: 1;
  opacity: 0.85;
}

.beat[data-beat="03"] .beat-num {
  color: var(--green);
}

.beat-body h3 {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(1.4rem, 4vw, 2rem);
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.beat-body p {
  color: var(--offwhite-dim);
  font-size: 1rem;
}

.story-manifesto {
  border: none;
  padding: 2.5rem 1.5rem;
  text-align: center;
  background:
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 12px,
      rgba(240, 185, 11, 0.04) 12px,
      rgba(240, 185, 11, 0.04) 24px
    ),
    var(--black-2);
  border-top: 2px solid var(--yellow);
  border-bottom: 2px solid var(--yellow);
}

.story-manifesto p {
  font-family: var(--font-cn);
  font-weight: 700;
  font-size: clamp(1.25rem, 3.5vw, 1.85rem);
  line-height: 1.45;
  color: var(--offwhite);
}

.manifesto-takeoff {
  margin-top: 0.5rem;
  color: var(--yellow-hot) !important;
  font-size: clamp(1.5rem, 4vw, 2.25rem) !important;
  font-weight: 900 !important;
}

/* ——— Flight board ——— */
.flight-board {
  padding: 5rem 0;
  background: var(--black);
}

.board {
  background: #0a0c0a;
  border: 2px solid #1a1f1a;
  padding: 0.75rem;
  box-shadow:
    inset 0 0 60px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(240, 185, 11, 0.1);
}

.board-header {
  display: none;
  grid-template-columns: 1.2fr 1.2fr 0.8fr 1.1fr;
  gap: 0.4rem;
  padding: 0.4rem 0.5rem 0.75rem;
  font-family: var(--font-display);
  font-size: 0.55rem;
  letter-spacing: 0.16em;
  color: rgba(14, 203, 129, 0.7);
}

.board-row {
  display: grid;
  gap: 0.4rem;
}

.flap {
  display: flex;
  align-items: center;
  min-height: 56px;
  padding: 0.75rem 1rem;
  background:
    linear-gradient(180deg, #1a1d1a 0%, #0f110f 48%, #080908 52%, #121512 100%);
  border: 1px solid #2a2e2a;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(0.85rem, 2.5vw, 1.15rem);
  letter-spacing: 0.1em;
  color: var(--yellow-hot);
  text-shadow: 0 0 12px rgba(240, 185, 11, 0.3);
  position: relative;
  overflow: hidden;
}

.flap::before {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  padding: 0 1rem;
  background: inherit;
  animation: flap-tick 4s steps(1) infinite;
  opacity: 0;
}

.flap:nth-child(1)::before { animation-delay: 0s; }
.flap:nth-child(2)::before { animation-delay: 0.4s; }
.flap:nth-child(3)::before { animation-delay: 0.8s; }
.flap:nth-child(4)::before { animation-delay: 1.2s; }

@keyframes flap-tick {
  0%, 92%, 100% { opacity: 0; transform: translateY(0); }
  93% { opacity: 1; transform: translateY(-100%); }
  96% { opacity: 1; transform: translateY(8%); }
  98% { opacity: 0; transform: translateY(0); }
}

.flap-dest {
  color: var(--green);
  text-shadow: 0 0 12px rgba(14, 203, 129, 0.35);
}

.flap-status {
  color: var(--yellow);
  letter-spacing: 0.08em;
}

.board-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.75rem;
  margin-top: 0.85rem;
  padding: 0.65rem 0.5rem 0.25rem;
  font-family: var(--font-display);
  font-size: 0.55rem;
  letter-spacing: 0.14em;
  color: rgba(245, 240, 230, 0.35);
}

/* ——— Banner ——— */
.banner-strip {
  padding: 1rem 0 4rem;
}

.banner-frame {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.25rem;
  overflow: hidden;
}

.banner-frame img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  object-position: center;
  border: 1px solid var(--line);
  filter: saturate(1.05) contrast(1.02);
}

.banner-vignette {
  position: absolute;
  inset: 0 1.25rem;
  pointer-events: none;
  box-shadow: inset 0 0 80px rgba(7, 7, 7, 0.55);
}

/* ——— CA ——— */
.ca-section {
  padding: 2rem 0 5rem;
}

.ca-module {
  padding: 2rem 1.25rem;
  background: var(--black-3);
  border: 1px solid var(--line);
  position: relative;
}

.ca-module::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: repeating-linear-gradient(
    90deg,
    var(--yellow) 0 16px,
    var(--black) 16px 32px
  );
}

.ca-module-top {
  margin-bottom: 1.5rem;
}

.ca-module h2 {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 0.5rem;
}

.ca-warning {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.35rem 0.7rem;
  font-family: var(--font-display);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--black);
  background: var(--yellow);
}

.ca-display {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: stretch;
}

.ca-full {
  display: block;
  padding: 1.1rem 1.15rem;
  background: var(--black);
  border: 1px dashed var(--yellow-dim);
  font-size: clamp(1.1rem, 3.5vw, 1.6rem);
  font-weight: 600;
  color: var(--yellow-hot);
  word-break: break-all;
  letter-spacing: 0.04em;
  text-align: center;
}

.ca-note {
  margin-top: 1.15rem;
  font-size: 0.88rem;
  color: var(--offwhite-dim);
}

.ca-note code {
  color: var(--yellow);
}

/* ——— Chart ——— */
.chart-section {
  padding: 4rem 0 5rem;
  background: var(--black-2);
  border-top: 1px solid var(--line-soft);
}

.chart-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.dex-embed {
  position: relative;
  width: 100%;
  min-height: 420px;
  background: var(--black);
  border: 1px solid var(--line);
  overflow: hidden;
}

.dex-iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  min-height: 420px;
}

.dex-placeholder {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(7, 7, 7, 0.72);
  pointer-events: none;
}

.dex-placeholder-mark {
  text-align: center;
  padding: 1.5rem;
}

.warning-stripe {
  display: block;
  width: 120px;
  height: 10px;
  margin: 0 auto 1rem;
  background: repeating-linear-gradient(
    -45deg,
    var(--yellow) 0 8px,
    var(--black) 8px 16px
  );
}

.dex-placeholder p {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--yellow);
}

.dex-placeholder-sub {
  margin-top: 0.5rem !important;
  color: var(--offwhite-dim) !important;
  letter-spacing: 0.06em !important;
  font-size: 0.65rem !important;
}

/* ——— Final CTA ——— */
.final-cta {
  position: relative;
  padding: 6rem 0 5rem;
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 50% at 50% 100%, rgba(240, 185, 11, 0.15), transparent 60%),
    var(--black);
  border-top: 1px solid var(--line);
}

.gate-atmosphere {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.gate-lines {
  position: absolute;
  inset: 10% 5%;
  background:
    linear-gradient(90deg, transparent 0%, rgba(240, 185, 11, 0.08) 50%, transparent 100%),
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 48px,
      rgba(245, 240, 230, 0.04) 48px,
      rgba(245, 240, 230, 0.04) 49px
    );
  transform: perspective(600px) rotateX(55deg);
  transform-origin: center bottom;
  opacity: 0.7;
}

.final-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.gate-label {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.24em;
  color: var(--green);
  margin-bottom: 1rem;
}

.final-title {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(3rem, 12vw, 6.5rem);
  line-height: 1;
  color: var(--yellow-hot);
  letter-spacing: -0.02em;
}

.final-support {
  margin: 1.15rem auto 0;
  max-width: 28rem;
  font-size: 1.1rem;
  color: var(--offwhite-dim);
}

.final-ctas {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 2.25rem;
}

.final-ctas .btn-buy {
  min-width: 160px;
}

/* ——— Footer ——— */
.site-footer {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--line-soft);
  background: var(--black);
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
  text-align: center;
}

.footer-brand {
  font-family: var(--font-cn);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--yellow);
  margin-bottom: 0.85rem;
}

.footer-disclaimer {
  max-width: 40rem;
  margin: 0 auto;
  font-size: 0.78rem;
  line-height: 1.6;
  color: rgba(245, 240, 230, 0.4);
}

/* ——— Tablet+ ——— */
@media (min-width: 720px) {
  .nav-desktop {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }

  .mobile-nav {
    display: none !important;
  }

  .board-header {
    display: grid;
  }

  .board-row {
    grid-template-columns: 1.2fr 1.2fr 0.8fr 1.1fr;
  }

  .ca-display {
    flex-direction: row;
    align-items: stretch;
  }

  .ca-full {
    flex: 1;
    text-align: left;
  }

  .story-beats {
    gap: 1.25rem;
  }

  .beat {
    padding: 1.75rem 1.75rem;
  }
}

/* ——— Desktop cinematic ——— */
@media (min-width: 960px) {
  .hero {
    padding: 1.5rem 0 5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .hero-grid {
    grid-template-columns: 1fr 1.05fr;
    gap: 2rem 3rem;
    align-items: center;
  }

  .hero-visual {
    order: 0;
  }

  .hero-copy {
    text-align: left;
  }

  .hero-lead {
    margin-left: 0;
  }

  .hero-ctas {
    justify-content: flex-start;
  }

  .ca-inline {
    margin-left: 0;
  }

  .hero-mascot {
    width: min(100%, 560px);
  }

  .preflight-badge {
    left: 12%;
    transform: none;
    bottom: 12%;
  }

  .story-beats {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }

  .beat {
    grid-template-columns: 1fr;
    min-height: 220px;
    align-content: end;
  }

  .beat-num {
    margin-bottom: 1.5rem;
  }

  .dex-embed {
    min-height: 520px;
  }

  .dex-iframe {
    min-height: 520px;
  }

  .ca-module {
    padding: 2.5rem 2.5rem 2rem;
  }
}

@media (min-width: 1200px) {
  .hero-title {
    font-size: 7rem;
  }

  .altitude-marks {
    left: calc((100vw - 1280px) / 2 + 8px);
  }
}

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

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

  .hero-mascot,
  .hero-glow,
  .cloud,
  .path-line,
  .runway-centerline,
  .badge-dot,
  .flap::before {
    animation: none !important;
  }

  .btn:hover {
    transform: none;
  }
}