/* US Dollar bill aesthetic */
:root {
  --bill-green-dark: #061f12;
  --bill-green: #0f3d24;
  --bill-green-mid: #1a5c34;
  --bill-green-light: #2d7a4a;
  --bill-green-bright: #3d9f62;
  --bill-paper: #e8e4d4;
  --bill-paper-warm: #f4f0e0;
  --bill-ink: #0a2818;
  --bill-gold: #c9a227;
  --bill-gold-light: #e8d48a;
  --bill-gold-glow: rgba(232, 212, 138, 0.35);
  --bill-border: #1a472a;
  --bill-shadow: rgba(4, 20, 12, 0.45);
  --bill-shadow-soft: rgba(61, 159, 98, 0.15);
  --font-serif: "Libre Baskerville", "Times New Roman", Georgia, serif;
  --font-display: "Playfair Display", "Libre Baskerville", Georgia, serif;
  --font-mono: "Special Elite", "Courier New", monospace;
  --bg-vector-color: rgba(232, 212, 138, 0.55);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-serif);
  color: var(--bill-ink);
  background: var(--bill-green-dark);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* —— Fixed video + vector background —— */
.page-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.page-bg-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 0;
}

.page-bg-video-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(6, 31, 18, 0.55) 0%, rgba(6, 31, 18, 0.35) 40%, rgba(6, 31, 18, 0.65) 100%),
    radial-gradient(ellipse 90% 70% at 50% 50%, rgba(15, 61, 36, 0.25) 0%, rgba(4, 20, 12, 0.7) 100%);
}

.page-bg-svg {
  position: absolute;
  width: 100%;
  height: 100%;
  min-width: 100%;
  min-height: 100%;
  z-index: 2;
  opacity: 0.35;
  color: var(--bg-vector-color);
  animation: bg-drift 90s ease-in-out infinite;
}

.page-bg-svg .bg-watermark-text {
  font-size: clamp(180px, 22vw, 320px);
}

.page-bg-svg .bg-wave-2 {
  animation: wave-float 18s ease-in-out infinite alternate;
}

@keyframes wave-float {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(12px);
  }
}

.page-bg-svg .bg-orbit {
  transform-origin: 50% 50%;
  animation: orbit-spin 120s linear infinite;
}

@keyframes bg-drift {
  0% {
    transform: scale(1.05) translate(0, 0);
  }
  50% {
    transform: scale(1.08) translate(-1%, -0.5%);
  }
  100% {
    transform: scale(1.05) translate(0, 0);
  }
}

@keyframes orbit-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.page-bg-mesh {
  position: absolute;
  inset: 0;
  z-index: 3;
  background:
    radial-gradient(circle at 20% 30%, var(--bill-shadow-soft) 0%, transparent 25%),
    radial-gradient(circle at 80% 70%, rgba(201, 162, 39, 0.08) 0%, transparent 30%),
    radial-gradient(circle at 50% 100%, rgba(13, 61, 31, 0.5) 0%, transparent 40%);
  mix-blend-mode: screen;
}

.page-bg-vignette {
  position: absolute;
  inset: 0;
  z-index: 4;
  background: radial-gradient(ellipse 85% 75% at 50% 45%, transparent 20%, rgba(4, 12, 8, 0.75) 100%);
}

.page-bg-shimmer {
  position: absolute;
  inset: -50% -50%;
  z-index: 5;
  background: linear-gradient(
    105deg,
    transparent 40%,
    rgba(232, 212, 138, 0.04) 48%,
    rgba(232, 212, 138, 0.08) 50%,
    rgba(232, 212, 138, 0.04) 52%,
    transparent 60%
  );
  animation: shimmer-sweep 12s ease-in-out infinite;
}

@keyframes shimmer-sweep {
  0%,
  100% {
    transform: translateX(-30%) rotate(0deg);
    opacity: 0.6;
  }
  50% {
    transform: translateX(30%) rotate(0deg);
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-bg-video {
    display: none;
  }

  .page-bg-video-overlay {
    background: var(--bill-green-dark);
  }

  .page-bg-svg,
  .page-bg-svg .bg-orbit,
  .page-bg-shimmer,
  .page-bg-svg .bg-wave-2 {
    animation: none;
  }
}

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

a {
  color: var(--bill-green);
  text-decoration: none;
}

a:hover {
  color: var(--bill-gold);
}

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* —— Header —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(
    180deg,
    rgba(6, 31, 18, 0.92) 0%,
    rgba(15, 61, 36, 0.88) 100%
  );
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 3px solid var(--bill-gold);
  box-shadow:
    0 4px 24px var(--bill-shadow),
    inset 0 1px 0 rgba(232, 212, 138, 0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--bill-paper-warm);
  text-decoration: none;
}

.brand-logo {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid var(--bill-gold);
  object-fit: cover;
  box-shadow: 0 0 0 2px var(--bill-green-dark);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-symbol {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--bill-gold-light);
  letter-spacing: 0.08em;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  align-items: center;
}

.nav a {
  color: var(--bill-paper-warm);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}

.nav a:hover {
  color: var(--bill-gold-light);
  border-bottom-color: var(--bill-gold);
}

.nav-cta {
  background: linear-gradient(180deg, var(--bill-gold-light), var(--bill-gold));
  color: var(--bill-ink) !important;
  padding: 0.45rem 1rem !important;
  border-radius: 4px;
  border: 2px solid #8a7018 !important;
  font-weight: 700 !important;
}

.nav-cta:hover {
  filter: brightness(1.08);
  border-bottom-color: #8a7018 !important;
}

.menu-toggle {
  display: none;
  background: transparent;
  border: 2px solid var(--bill-gold);
  color: var(--bill-paper-warm);
  padding: 0.35rem 0.6rem;
  font-size: 1.25rem;
  cursor: pointer;
  border-radius: 4px;
}

/* —— Bill card frame —— */
.bill-card {
  position: relative;
  background:
    linear-gradient(145deg, var(--bill-paper-warm) 0%, var(--bill-paper) 45%, #ddd8c8 100%);
  border: 4px solid var(--bill-border);
  border-radius: 8px;
  box-shadow:
    inset 0 0 80px rgba(26, 71, 42, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    0 4px 0 rgba(201, 162, 39, 0.25),
    0 20px 50px var(--bill-shadow),
    0 0 0 1px rgba(232, 212, 138, 0.2);
  overflow: hidden;
}

.bill-card .bill-card-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.07;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80'%3E%3Cpath d='M0 40 Q20 0 40 40 T80 40' fill='none' stroke='%231a472a' stroke-width='0.8'/%3E%3Ccircle cx='40' cy='40' r='18' fill='none' stroke='%231a472a' stroke-width='0.5'/%3E%3C/svg%3E");
  background-size: 80px 80px;
}

.bill-card::before,
.bill-card::after {
  content: "";
  position: absolute;
  width: 48px;
  height: 48px;
  border: 3px solid var(--bill-green-mid);
  opacity: 0.5;
  pointer-events: none;
}

.bill-card::before {
  top: 12px;
  left: 12px;
  border-right: none;
  border-bottom: none;
}

.bill-card::after {
  bottom: 12px;
  right: 12px;
  border-left: none;
  border-top: none;
}

.bill-card > :not(.bill-card-pattern) {
  position: relative;
  z-index: 1;
}

.hero-card > .hero-grid,
.hero-card > .hero-footer-serial {
  z-index: 1;
}

.bill-serial {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--bill-green-mid);
  opacity: 0.85;
}

/* —— Sections —— */
main {
  position: relative;
  z-index: 1;
}

.section {
  padding: 4rem 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bill-gold);
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin: 0 0 1.5rem;
  background: linear-gradient(180deg, #fff8e7 0%, var(--bill-gold-light) 45%, var(--bill-gold) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 2px 12px rgba(0, 0, 0, 0.4));
}

.section-title-wrap {
  position: relative;
  padding-bottom: 0.75rem;
  margin-bottom: 1.5rem;
}

.section-title-wrap .section-title {
  margin-bottom: 0;
}

.section-ornament {
  display: block;
  height: 3px;
  margin-top: 0.75rem;
  max-width: 200px;
  background: linear-gradient(90deg, transparent, var(--bill-gold), transparent);
  opacity: 0.85;
}

/* —— Hero —— */
.hero {
  padding: 3rem 0 4rem;
}

.hero-card {
  padding: 2.5rem 2rem;
}

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

.hero-content h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  margin: 0.5rem 0;
  line-height: 1.15;
  background: linear-gradient(135deg, var(--bill-green-dark) 0%, var(--bill-green-mid) 60%, var(--bill-green-dark) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 1px 0 rgba(255, 255, 255, 0.3));
}

.hero-symbol {
  display: inline-block;
  font-family: var(--font-mono);
  background: var(--bill-green);
  color: var(--bill-paper-warm);
  padding: 0.25rem 0.75rem;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  border-radius: 3px;
  margin-bottom: 0.5rem;
}

.hero-bio {
  font-size: 1.05rem;
  color: var(--bill-ink);
  margin: 1rem 0 1.5rem;
  max-width: 36ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.35rem;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: 4px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, filter 0.15s, box-shadow 0.15s;
  text-decoration: none;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px var(--bill-shadow);
}

.btn-primary {
  background: linear-gradient(180deg, var(--bill-gold-light) 0%, var(--bill-gold) 55%, #a88620 100%);
  color: var(--bill-ink);
  border-color: #8a7018;
  box-shadow:
    0 2px 0 #6b5610,
    0 4px 16px rgba(201, 162, 39, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.btn-secondary {
  background: var(--bill-green);
  color: var(--bill-paper-warm);
  border-color: var(--bill-green-dark);
}

.btn-outline {
  background: transparent;
  color: var(--bill-green-dark);
  border-color: var(--bill-green);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-logo-wrap {
  position: absolute;
  top: -8%;
  right: 8%;
  width: 28%;
  z-index: 2;
  filter: drop-shadow(0 8px 16px var(--bill-shadow));
}

.hero-logo-wrap img {
  border-radius: 50%;
  border: 3px solid var(--bill-gold);
}

.hero-dollar img {
  border-radius: 8px;
  box-shadow:
    0 24px 50px var(--bill-shadow),
    0 0 40px var(--bill-gold-glow);
  transform: rotate(-2deg);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.hero-dollar:hover img {
  transform: rotate(0deg) scale(1.02);
  box-shadow:
    0 28px 60px var(--bill-shadow),
    0 0 60px rgba(232, 212, 138, 0.25);
}

.hero-footer-serial {
  display: flex;
  justify-content: space-between;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--bill-green-mid);
}

/* —— About —— */
.about-card {
  padding: 2.5rem;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: start;
}

.about-text p {
  margin: 0 0 1rem;
  font-size: 1.05rem;
}

.about-note {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--bill-green-mid);
  padding: 0.75rem 1rem;
  background: rgba(26, 92, 52, 0.08);
  border-left: 4px solid var(--bill-gold);
  margin-top: 1rem;
}

.about-seal {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.seal-ring {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 4px double var(--bill-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle, var(--bill-green-light), var(--bill-green));
  margin-bottom: 1rem;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.2);
}

.seal-ring img {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
}

.seal-caption {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--bill-green-dark);
  font-weight: 700;
}

/* —— How to buy —— */
.howtobuy-card {
  padding: 2.5rem;
}

.howtobuy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: step;
}

.steps li {
  position: relative;
  padding-left: 3rem;
  margin-bottom: 1.25rem;
  counter-increment: step;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 2rem;
  height: 2rem;
  background: var(--bill-green);
  color: var(--bill-paper-warm);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 2px solid var(--bill-gold);
}

.steps strong {
  display: block;
  color: var(--bill-green-dark);
  margin-bottom: 0.2rem;
}

.howtobuy-visual img {
  border-radius: 8px;
  box-shadow: 0 12px 32px var(--bill-shadow);
}

.buy-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* —— Chart —— */
.chart-wrap {
  background: #0d1117;
  border: 4px solid var(--bill-border);
  border-radius: 8px;
  overflow: hidden;
  min-height: 480px;
  box-shadow:
    0 12px 40px var(--bill-shadow),
    0 0 0 1px rgba(232, 212, 138, 0.2),
    inset 0 0 80px rgba(201, 162, 39, 0.05);
}

.chart-wrap iframe {
  width: 100%;
  height: 520px;
  border: none;
  display: block;
}

.chart-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 480px;
  padding: 2rem;
  text-align: center;
  color: var(--bill-paper);
  background: linear-gradient(180deg, #121a14, #0d1117);
}

.chart-placeholder p {
  margin: 0 0 1rem;
  max-width: 40ch;
}

.chart-external {
  margin-top: 1rem;
  text-align: center;
}

.chart-external a {
  color: var(--bill-gold-light);
  font-weight: 600;
  text-decoration: underline;
}

/* —— Join us —— */
.joinus {
  padding-bottom: 5rem;
}

.joinus-banner {
  margin-bottom: 2rem;
  border-radius: 8px;
  overflow: hidden;
  border: 4px solid var(--bill-gold);
  box-shadow:
    0 16px 48px var(--bill-shadow),
    0 0 0 1px rgba(232, 212, 138, 0.3),
    0 0 60px rgba(201, 162, 39, 0.15);
}

.joinus-banner img {
  width: 100%;
  object-fit: cover;
  max-height: 320px;
  object-position: center;
}

.joinus-card {
  padding: 2.5rem;
  text-align: center;
}

.joinus-card p {
  font-size: 1.1rem;
  max-width: 50ch;
  margin: 0 auto 1.5rem;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  background: var(--bill-green-dark);
  color: var(--bill-paper-warm);
  border: 2px solid var(--bill-gold);
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: background 0.2s, transform 0.15s;
}

.social-btn:hover {
  background: var(--bill-green);
  color: var(--bill-gold-light);
  transform: translateY(-2px);
}

.social-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* —— Footer —— */
.site-footer {
  position: relative;
  z-index: 1;
  background: linear-gradient(180deg, transparent 0%, rgba(6, 31, 18, 0.95) 30%);
  border-top: 3px solid var(--bill-gold);
  padding: 1.5rem 0 2rem;
  text-align: center;
  box-shadow: inset 0 1px 0 rgba(232, 212, 138, 0.1);
}

.site-footer p {
  margin: 0;
  font-size: 0.8rem;
  color: rgba(244, 240, 224, 0.7);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

/* —— Contract strip —— */
.contract-strip {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.contract-strip code {
  flex: 1;
  min-width: 0;
  padding: 0.5rem 0.75rem;
  background: rgba(13, 61, 31, 0.1);
  border: 1px dashed var(--bill-green-mid);
  word-break: break-all;
  font-size: 0.7rem;
}

.copy-btn {
  padding: 0.45rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background: var(--bill-green);
  color: var(--bill-paper-warm);
  border: 1px solid var(--bill-gold);
  border-radius: 3px;
  cursor: pointer;
}

.copy-btn:hover {
  background: var(--bill-green-mid);
}

.contract-strip .link-solscan {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

/* —— Responsive —— */
@media (max-width: 900px) {
  .hero-grid,
  .about-grid,
  .howtobuy-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

  .hero-logo-wrap {
    width: 22%;
    top: 0;
    right: 5%;
  }

  .about-seal {
    flex-direction: row;
    gap: 1.5rem;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .menu-toggle {
    display: block;
  }

  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(6, 31, 18, 0.97);
    backdrop-filter: blur(12px);
    padding: 1rem;
    border-bottom: 3px solid var(--bill-gold);
  }

  .nav.is-open {
    display: flex;
  }

  .header-inner {
    position: relative;
    flex-wrap: wrap;
  }

  .hero-card,
  .about-card,
  .howtobuy-card,
  .joinus-card {
    padding: 1.5rem;
  }

  .chart-wrap iframe {
    height: 400px;
  }
}