:root {
  --accent: #D7EFD6;
  --accent-rgb: 215, 239, 214;
  --accent-dark: #6BB56A;
  --accent-darker: #4A9E48;
  --bg: #FFFDF7;
  --bg-warm: #FBF9F3;
  --text-primary: #1a1a1a;
  --text-secondary: #7a7a7a;
  --text-tertiary: #a0a0a0;
  --border-light: rgba(0, 0, 0, 0.06);
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(0, 0, 0, 0.06);
}

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

::selection {
  background: var(--accent);
  color: var(--text-primary);
}

html {
  scroll-behavior: auto;
}

body {
  font-family: 'Archivo', sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.6;
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-warm); }
::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 100px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-dark);
}

/* ========== LOADER ========== */
#loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease;
}
.loader-content {
  text-align: center;
}
.loader-logo {
  margin: 0 auto 24px;
}
.loader-logo .logo-text {
  font-size: 2rem;
}
.loader-text {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}
.loader-bar-track {
  width: 200px;
  height: 3px;
  background: var(--border-light);
  border-radius: 100px;
  margin: 0 auto;
  overflow: hidden;
}
.loader-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-dark), var(--accent));
  border-radius: 100px;
  transition: width 0.3s ease;
}

/* ========== FLOATING PARTICLES ========== */
#starscape {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}

/* ========== SCROLL PROGRESS ========== */
#scrollProgress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-dark), var(--accent));
  z-index: 10000;
  transition: width 0.1s linear;
}

/* ========== NAVBAR ========== */
#navbar {
  position: fixed;
  top: 12px;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-inner {
  max-width: 100%;
  margin: 0 auto;
  padding: 12px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
}
.logo-text {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.nav-logo span {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.3s ease;
}
.nav-links a:hover {
  color: var(--text-primary);
}
.nav-cta {
  background: var(--accent) !important;
  color: var(--text-primary) !important;
  padding: 8px 20px !important;
  border-radius: 100px !important;
  font-weight: 600 !important;
  transition: all 0.3s ease !important;
}
.nav-cta:hover {
  background: var(--accent-dark) !important;
  color: #fff !important;
}
#navbar.nav-scrolled .nav-inner {
  max-width: 820px;
  background: rgba(255, 253, 247, 0.85);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 100px;
  padding: 10px 24px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
}

/* ========== HERO ========== */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  z-index: 1;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
}
.orb-1 {
  width: 600px;
  height: 600px;
  background: var(--accent);
  top: -250px;
  right: -150px;
  opacity: 0.25;
}
.orb-2 {
  width: 450px;
  height: 450px;
  background: var(--accent);
  bottom: -200px;
  left: -150px;
  opacity: 0.18;
}
.orb-3 {
  width: 300px;
  height: 300px;
  background: var(--accent-dark);
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.06;
}
.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}
.hero-content {
  position: relative;
  text-align: center;
  max-width: 800px;
  padding: 120px 32px 80px;
  z-index: 2;
}
.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.hero-title .accent {
  color: var(--accent-dark);
}
.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-primary {
  background: var(--accent);
  color: var(--text-primary);
  padding: 14px 32px;
  border-radius: 14px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(var(--accent-rgb), 0.3);
  font-family: 'Archivo', sans-serif;
}
.btn-primary:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(107, 181, 106, 0.3);
}
.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  padding: 14px 32px;
  border: 1px solid var(--border-light);
  border-radius: 14px;
  font-weight: 500;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: 'Archivo', sans-serif;
}
.btn-secondary:hover {
  border-color: var(--accent-dark);
  color: var(--text-primary);
}
.scroll-hint {
  margin-top: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.scroll-hint span {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--text-tertiary);
  border-bottom: 2px solid var(--text-tertiary);
  transform: rotate(45deg);
  animation: scrollBounce 2s ease infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translateY(0); opacity: 0.5; }
  50% { transform: rotate(45deg) translateY(6px); opacity: 1; }
}

/* ========== SCROLL ANIMATION ========== */
.scroll-animation {
  height: 400vh;
  position: relative;
  z-index: 2;
}
.scroll-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 100%;
  overflow: hidden;
}
#frameCanvas {
  position: absolute;
  top: 0;
  left: 0;
}

@media (max-width: 1024px) { .scroll-animation { height: 300vh; } }
@media (max-width: 768px)  { .scroll-animation { height: 250vh; } }

/* ========== ANNOTATION CARDS ========== */
.annotation-card {
  position: absolute;
  bottom: 8vh;
  left: 5vw;
  max-width: 380px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: 20px;
  padding: 28px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease, transform 0.4s ease;
  pointer-events: none;
  z-index: 10;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.04);
}
.annotation-card.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.card-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--accent-dark);
  margin-bottom: 8px;
  font-weight: 500;
}
.card-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}
.card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}
.card-stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent-dark);
}
.card-stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: block;
  margin-top: 2px;
}

@media (max-width: 768px) {
  .annotation-card {
    bottom: 3vh;
    left: 4vw;
    right: 4vw;
    max-width: none;
    padding: 14px 18px;
    display: block;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border-radius: 16px;
    padding: 20px;
  }
  .card-desc { display: block; font-size: 0.85rem; margin-bottom: 12px; }
  .card-stat { display: block; }
  .card-number { margin-bottom: 6px; font-size: 0.7rem; }
  .card-body { display: block; }
  .card-title { margin-bottom: 6px; font-size: 1rem; }
  .card-stat-number { font-size: 1.5rem; }
}

/* ========== SPECS ========== */
#specs {
  position: relative;
  z-index: 1;
}
.specs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
  padding: 100px 32px;
  text-align: center;
}
.spec-item {
  padding: 24px;
}
.spec-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 3.5rem;
  font-weight: 700;
  display: block;
  color: var(--text-primary);
  transition: text-shadow 0.3s ease;
}
.spec-number.counting {
  color: var(--accent-darker);
  text-shadow: 0 0 30px rgba(var(--accent-rgb), 0.6);
}
.spec-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 8px;
  display: block;
}

@media (max-width: 768px) {
  .specs-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; padding: 80px 24px; }
  .spec-number { font-size: 2.5rem; }
}

/* ========== SECTION TITLES ========== */
.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 60px;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ========== FEATURES ========== */
#features {
  position: relative;
  z-index: 1;
  padding: 80px 32px 100px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}
.feature-card {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 20px;
  padding: 32px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(107, 181, 106, 0.2);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.04);
}
.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--accent);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent-darker);
}
.feature-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}
.feature-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .features-grid { grid-template-columns: 1fr; }
}

/* ========== HOW IT WORKS ========== */
#how-it-works {
  position: relative;
  z-index: 1;
  padding: 80px 32px 100px;
  background: var(--bg-warm);
}
.steps-container {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  position: relative;
  padding: 32px 0;
}
.step-number-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}
.step-number {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-darker);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.step-line {
  width: 2px;
  flex: 1;
  background: var(--accent);
  margin-top: 8px;
  min-height: 40px;
}
.step:last-child .step-line {
  display: none;
}
.step-content h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}
.step-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .step { gap: 16px; }
}

/* ========== CTA ========== */
#cta {
  position: relative;
  text-align: center;
  padding: 120px 32px;
  z-index: 1;
  overflow: hidden;
}
.cta-orb {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: var(--accent);
  filter: blur(120px);
  opacity: 0.2;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}
.cta-content {
  position: relative;
  z-index: 2;
}
.cta-content h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.cta-content p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 40px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}
.btn-large {
  font-size: 1.1rem;
  padding: 18px 48px;
}
.cta-social {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 32px;
}
.cta-social a {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.3s ease;
}
.cta-social a:hover {
  background: var(--accent);
  color: var(--text-primary);
  border-color: var(--accent);
}
.cta-social svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* ========== FOOTER ========== */
footer {
  border-top: 1px solid var(--border-light);
  padding: 60px 32px 40px;
  text-align: center;
  position: relative;
  z-index: 1;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 24px;
}
.footer-brand .logo-text {
  font-size: 1.2rem;
}
.footer-brand span {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 24px;
}
.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}
.footer-links a:hover {
  color: var(--text-primary);
}
.footer-social {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 24px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  transition: color 0.3s ease;
  text-decoration: none;
}
.footer-social a:hover {
  color: var(--accent-dark);
}
.footer-social svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}
.footer-copy {
  color: var(--text-tertiary);
  font-size: 0.8rem;
}

/* ========== MOBILE NAV ========== */
@media (max-width: 768px) {
  #navbar { top: 8px; left: 8px; right: 8px; }
  .nav-inner {
    padding: 8px 12px 8px 16px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 100px;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.08);
  }
  .nav-logo .logo-text { font-size: 1.1rem; }
  .nav-links { gap: 12px; }
  .nav-links a { font-size: 0.75rem; }
  .nav-cta { padding: 6px 14px !important; font-size: 0.75rem !important; }
  .hero-content { padding: 100px 24px 60px; }
  .hero-buttons { flex-direction: column; align-items: center; }
}
@media (max-width: 400px) {
  .nav-links a:not(.nav-cta) { display: none; }
  .nav-links { gap: 8px; }
}

/* ========== FADE-IN ANIMATIONS ========== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}