/* ============================================
   BXRP — Premium Crypto Landing
   ============================================ */

:root {
  --bg: #050505;
  --card: #101010;
  --gold: #F5B800;
  --gold-secondary: #A87500;
  --white: #F5F5F5;
  --muted: #9A9A9A;
  --glow: rgba(245, 184, 0, 0.45);
  --glow-soft: rgba(245, 184, 0, 0.15);
  --border: rgba(245, 245, 245, 0.08);
  --border-gold: rgba(245, 184, 0, 0.25);
  --radius: 16px;
  --radius-sm: 10px;
  --header-h: 72px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --font-display: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --container: min(1200px, 100% - 2rem);
}

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

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

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--white);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

.container {
  width: var(--container);
  margin-inline: auto;
}

.text-gold {
  color: var(--gold);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-secondary) 100%);
  color: var(--bg);
  box-shadow: 0 0 24px var(--glow-soft), 0 4px 20px rgba(0, 0, 0, 0.4);
}

.btn--primary:hover {
  box-shadow: 0 0 40px var(--glow), 0 8px 32px rgba(0, 0, 0, 0.5);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: var(--border-gold);
}

.btn--outline:hover {
  border-color: var(--gold);
  color: var(--gold);
  box-shadow: 0 0 20px var(--glow-soft);
}

.btn--ghost {
  background: transparent;
  color: var(--muted);
  border-color: var(--border);
  padding: 0.5rem 0.75rem;
}

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

.btn--icon .btn__svg {
  width: 18px;
  height: 18px;
}

.btn--lg {
  padding: 0.9rem 1.75rem;
  font-size: 0.8rem;
}

.btn--glow {
  box-shadow: 0 0 48px var(--glow), 0 0 80px var(--glow-soft);
}

.btn--glow:hover {
  box-shadow: 0 0 64px var(--glow), 0 0 120px rgba(245, 184, 0, 0.3);
}

.btn--community {
  flex: 1;
  min-width: 200px;
  padding: 1.25rem 2rem;
  font-size: 1rem;
  background: var(--card);
  border: 1px solid var(--border-gold);
  color: var(--white);
  border-radius: var(--radius);
}

.btn--community svg {
  width: 24px;
  height: 24px;
  color: var(--gold);
}

.btn--community:hover {
  background: linear-gradient(135deg, rgba(245, 184, 0, 0.12) 0%, rgba(168, 117, 0, 0.08) 100%);
  border-color: var(--gold);
  box-shadow: 0 0 32px var(--glow-soft);
  transform: translateY(-3px);
}

/* ---- Logo ---- */
.logo__mark {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: var(--gold);
  text-shadow: 0 0 24px var(--glow-soft);
}

.logo--footer .logo__mark {
  font-size: 2rem;
}

/* ---- Header ---- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

.header--scrolled {
  background: rgba(5, 5, 5, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border), 0 8px 32px rgba(0, 0, 0, 0.5);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}

.nav__list {
  display: none;
  gap: 2rem;
}

.nav__link {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color var(--transition);
  position: relative;
}

.nav__link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width var(--transition);
}

.nav__link:hover {
  color: var(--white);
}

.nav__link:hover::after {
  width: 100%;
}

.header__actions {
  display: none;
  align-items: center;
  gap: 0.5rem;
}

.header__actions .btn--primary {
  margin-left: 0.25rem;
}

.header__buy-mobile {
  display: inline-flex;
  padding: 0.5rem 0.85rem;
  font-size: 0.7rem;
  margin-left: auto;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--white);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav overlay */
.nav--open {
  display: flex;
  position: fixed;
  inset: 0;
  top: var(--header-h);
  background: rgba(5, 5, 5, 0.97);
  backdrop-filter: blur(20px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  animation: fadeIn 0.3s ease;
}

.nav--open .nav__list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.nav--open .nav__link {
  font-size: 1.25rem;
}

.nav__mobile-actions {
  display: none;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2rem;
  width: 100%;
  max-width: 280px;
}

.nav--open .nav__mobile-actions {
  display: flex;
}

@media (min-width: 900px) {
  .nav__mobile-actions {
    display: none !important;
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-h) + 3rem) 1rem 4rem;
  overflow: hidden;
}

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

.hero__gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 100%, rgba(168, 117, 0, 0.2) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 20%, rgba(245, 184, 0, 0.08) 0%, transparent 50%),
    linear-gradient(180deg, #0a0a0a 0%, var(--bg) 40%, #030303 100%);
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(245, 184, 0, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 184, 0, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 20%, transparent 75%);
  transform: perspective(800px) rotateX(60deg) scale(2);
  transform-origin: center top;
  opacity: 0.6;
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: pulse 8s ease-in-out infinite;
}

.hero__orb--1 {
  width: 400px;
  height: 400px;
  top: 10%;
  left: -10%;
  background: var(--glow-soft);
}

.hero__orb--2 {
  width: 300px;
  height: 300px;
  bottom: 20%;
  right: -5%;
  background: rgba(168, 117, 0, 0.2);
  animation-delay: -4s;
}

.hero__lines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -12deg,
    transparent,
    transparent 80px,
    rgba(245, 184, 0, 0.02) 80px,
    rgba(245, 184, 0, 0.02) 81px
  );
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
}

.hero__eyebrow {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
  opacity: 0.9;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(5rem, 22vw, 11rem);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: 0.08em;
  color: var(--white);
  text-shadow:
    0 0 60px var(--glow),
    0 0 120px var(--glow-soft);
  margin-bottom: 0.5rem;
}

.hero__headline {
  font-size: clamp(1rem, 3.5vw, 1.5rem);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
}

.hero__sub {
  font-size: clamp(0.95rem, 2.5vw, 1.15rem);
  font-weight: 300;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.hero__cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.hero__scroll-line {
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(180deg, var(--gold), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ---- Sections ---- */
.section {
  padding: 5rem 0;
  position: relative;
}

.section__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 2.5rem;
  text-align: center;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1;
  text-align: center;
}

.section__title--split {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 2rem;
}

/* ---- Card ---- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  border-color: var(--border-gold);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4), 0 0 24px var(--glow-soft);
}

/* ---- Mission ---- */
.mission {
  padding-top: 6rem;
}

.mission__inner {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.mission__text {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  font-weight: 300;
  color: var(--muted);
  line-height: 1.8;
}

/* ---- Features ---- */
.features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.feature-card {
  padding: 2rem 1.5rem;
  text-align: center;
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1.25rem;
  color: var(--gold);
}

.feature-card__icon svg {
  width: 100%;
  height: 100%;
}

.feature-card__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.feature-card__text {
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 300;
}

/* ---- Tokenomics ---- */
.tokenomics__card {
  max-width: 640px;
  margin-inline: auto;
  padding: 0;
  overflow: hidden;
}

.tokenomics__list {
  display: flex;
  flex-direction: column;
}

.tokenomics__item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  gap: 1rem;
  transition: background var(--transition);
}

.tokenomics__item:last-child {
  border-bottom: none;
}

.tokenomics__item:hover {
  background: rgba(245, 184, 0, 0.04);
}

.tokenomics__label {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--white);
  text-align: left;
}

.tokenomics__note {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.tokenomics__value {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.1em;
  color: var(--gold);
}

/* ---- Roadmap Timeline ---- */
.timeline {
  position: relative;
  max-width: 560px;
  margin-inline: auto;
  padding-left: 2rem;
}

.timeline__track {
  position: absolute;
  left: 11px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), var(--gold-secondary), var(--border));
  border-radius: 2px;
}

.timeline__item {
  position: relative;
  display: flex;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.timeline__item:last-child {
  margin-bottom: 0;
}

.timeline__marker {
  position: absolute;
  left: -2rem;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border: 2px solid var(--gold);
  border-radius: 50%;
  z-index: 1;
  box-shadow: 0 0 16px var(--glow-soft);
}

.timeline__marker span {
  font-size: 0.55rem;
  font-weight: 700;
  color: var(--gold);
}

.timeline__content {
  flex: 1;
  padding: 1.25rem 1.5rem;
  margin-left: 0.5rem;
}

.timeline__phase {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.25rem;
}

.timeline__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.04em;
}

.timeline__item--highlight .timeline__content {
  border-color: var(--border-gold);
  background: linear-gradient(135deg, rgba(245, 184, 0, 0.08) 0%, var(--card) 50%);
}

.timeline__item--highlight .timeline__marker {
  box-shadow: 0 0 24px var(--glow);
}

/* ---- Presale CTA ---- */
.presale-cta {
  position: relative;
  padding: 6rem 0;
  overflow: hidden;
}

.presale-cta__glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(600px, 90vw);
  height: 300px;
  background: radial-gradient(ellipse, var(--glow) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
  animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.15); }
}

.presale-cta__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 3rem 1.5rem;
  background: var(--card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius);
  box-shadow: 0 0 60px var(--glow-soft), inset 0 1px 0 rgba(245, 184, 0, 0.1);
}

.presale-cta__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 10vw, 4rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
  text-shadow: 0 0 40px var(--glow-soft);
}

.presale-cta__text {
  font-size: 1rem;
  font-weight: 300;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 2rem;
  max-width: 480px;
  margin-inline: auto;
}

/* ---- Community ---- */
.community .section__title {
  margin-bottom: 3rem;
}

.community__actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 480px;
  margin-inline: auto;
}

/* ---- Footer ---- */
.footer {
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.footer__disclaimer {
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--muted);
  line-height: 1.7;
  max-width: 320px;
}

/* ---- Reveal animations ---- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ---- Responsive: Tablet+ ---- */
@media (min-width: 640px) {
  .hero__cta {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }

  .features__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

  .community__actions {
    flex-direction: row;
  }

  .btn__label {
    display: inline;
  }
}

@media (min-width: 900px) {
  :root {
    --header-h: 80px;
  }

  .header__buy-mobile {
    display: none;
  }

  .nav-toggle {
    display: none;
  }

  .nav {
    display: block;
    position: static;
    background: none;
    backdrop-filter: none;
    padding: 0;
  }

  .nav__list {
    display: flex;
  }

  .header__actions {
    display: flex;
  }

  .header__actions .btn--ghost .btn__label {
    display: none;
  }

  .header__actions .btn--ghost {
    padding: 0.5rem;
  }

  .features__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .feature-card {
    padding: 2.5rem 1.5rem;
  }

  .tokenomics__item {
    padding: 1.5rem 2rem;
  }

  .timeline {
    max-width: 640px;
    padding-left: 2.5rem;
  }

  .timeline__marker {
    left: -2.5rem;
    width: 28px;
    height: 28px;
  }

  .presale-cta__inner {
    padding: 4rem 3rem;
  }
}

@media (min-width: 1100px) {
  .section {
    padding: 7rem 0;
  }

  .mission {
    padding-top: 8rem;
  }
}

/* Reduced motion */
@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;
  }

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