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

:root {
  --black: #000000;
  --white: #ffffff;
  --gray-50: #fafafa;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-300: #d4d4d4;
  --gray-400: #a3a3a3;
  --gray-500: #737373;
  --gray-600: #525252;
  --gray-700: #404040;
  --gray-800: #262626;
  --gray-900: #171717;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Space Mono', monospace;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--white);
  color: var(--black);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── NAVBAR ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gray-200);
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-agi {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--black);
}

.nav-btn {
  background: var(--black) !important;
  color: var(--white) !important;
  padding: 0.5rem 1.25rem;
  border-radius: 6px;
  font-size: 0.875rem;
  transition: opacity 0.2s !important;
}

.nav-btn:hover {
  opacity: 0.8;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--black);
  transition: all 0.3s;
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8rem 2rem 4rem;
  position: relative;
}

.hero-agi {
  font-family: var(--font-mono);
  font-size: clamp(6rem, 18vw, 14rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  background: linear-gradient(180deg, var(--black) 0%, var(--gray-600) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 0.8s ease both;
  margin: 0;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--gray-500);
  margin-top: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 3rem;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  font-family: var(--font-sans);
}

.btn-primary {
  background: var(--black);
  color: var(--white);
}

.btn-primary:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

.btn-x {
  background: var(--black);
  color: var(--white);
  padding: 0.875rem;
  width: 48px;
  height: 48px;
}

.btn-x:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--black);
  border: 1px solid var(--gray-300);
}

.btn-outline:hover {
  border-color: var(--black);
  transform: translateY(-1px);
}

.hero-ca {
  margin-top: 2rem;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  animation: fadeInUp 0.8s ease 1s both;
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--gray-300), transparent);
  animation: scrollPulse 2s ease infinite;
}

/* ── TICKER ── */
.ticker-section {
  background: var(--black);
  color: var(--white);
  padding: 1rem 0;
  overflow: hidden;
}

.ticker-track {
  display: flex;
  width: max-content;
  animation: ticker 30s linear infinite;
}

.ticker-content {
  display: flex;
  align-items: center;
  gap: 2rem;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  font-weight: 700;
}

.ticker-dot {
  font-size: 0.4rem;
  opacity: 0.4;
}

/* ── SECTIONS ── */
.section {
  padding: 7rem 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--gray-400);
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--gray-500);
  margin-bottom: 3.5rem;
  max-width: 560px;
}

/* ── CARDS ── */
.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
}

.card-dark {
  background: var(--gray-50);
}

.card-highlight {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

.card-icon {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.05);
}

.card-highlight .card-icon {
  background: rgba(255, 255, 255, 0.1);
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.card p {
  font-size: 0.95rem;
  line-height: 1.7;
  opacity: 0.75;
}

.card-number {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--gray-400);
  margin-bottom: 1.25rem;
  letter-spacing: 0.05em;
}

/* ── ABOUT ── */
.about {
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

/* ── WHY ── */
.why-section {
  background: var(--gray-50);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* ── QUOTE ── */
.quote-section {
  padding: 7rem 0;
  background: var(--white);
}

.big-quote {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 300;
  line-height: 1.6;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  color: var(--gray-700);
}

.big-quote .highlight {
  font-weight: 700;
  color: var(--black);
}

.big-quote footer {
  font-size: 0.9rem;
  color: var(--gray-400);
  margin-top: 1.5rem;
  font-style: normal;
}

/* ── COMMUNITY / TESTIMONIALS ── */
.community-section {
  background: var(--gray-50);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.testimonial-text {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--gray-700);
  margin-bottom: 1.5rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--black);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-mono);
  flex-shrink: 0;
}

.author-name {
  font-weight: 600;
  font-size: 0.875rem;
}

.author-role {
  font-size: 0.75rem;
  color: var(--gray-400);
}

/* ── HOW TO BUY ── */
.how-to-buy-section {
  background: var(--white);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.step-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 2rem;
  display: flex;
  gap: 1.5rem;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.step-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
}

.step-number {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--gray-200);
  line-height: 1;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.step-content p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--gray-600);
}

.step-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.step-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--black);
  transition: opacity 0.2s;
}

.step-link:hover {
  opacity: 0.6;
}

.contract-box {
  background: var(--gray-900);
  border-radius: 12px;
  padding: 1.5rem 2rem;
  text-align: center;
}

.contract-label {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.15em;
  color: var(--gray-400);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}

.contract-address {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 0.75rem 1.25rem;
}

.contract-address span {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--white);
  letter-spacing: 0.02em;
}

.copy-btn {
  background: none;
  border: none;
  color: var(--gray-400);
  cursor: pointer;
  padding: 4px;
  transition: color 0.2s;
  display: flex;
  align-items: center;
}

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

/* ── FOOTER ── */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--gray-200);
  text-align: center;
}

.footer-text {
  font-size: 0.8rem;
  color: var(--gray-400);
}

/* ── SCROLL ANIMATIONS ── */
.anim-card {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    box-shadow 0.4s ease;
}

.anim-card.anim-visible {
  opacity: 1;
  transform: translateY(0);
}

.anim-card[data-delay="1"] {
  transition-delay: 0.1s;
}

.anim-card[data-delay="2"] {
  transition-delay: 0.2s;
}

.anim-card[data-delay="3"] {
  transition-delay: 0.3s;
}

.anim-card[data-delay="4"] {
  transition-delay: 0.4s;
}

.anim-card[data-delay="5"] {
  transition-delay: 0.5s;
}

.anim-label {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.anim-label.anim-visible {
  opacity: 1;
  transform: translateX(0);
}

.anim-title {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease 0.1s, transform 0.6s ease 0.1s;
}

.anim-title.anim-visible {
  opacity: 1;
  transform: translateY(0);
}

.anim-desc {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease 0.2s, transform 0.6s ease 0.2s;
}

.anim-desc.anim-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── KEYFRAMES ── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scrollPulse {
  0%, 100% {
    opacity: 0.3;
    transform: scaleY(1);
  }
  50% {
    opacity: 1;
    transform: scaleY(1.2);
  }
}

@keyframes ticker {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--gray-200);
    gap: 1.25rem;
  }

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

  .mobile-toggle {
    display: flex;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .why-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }

  .step-card {
    flex-direction: column;
    gap: 1rem;
  }
}