@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --background: #000000;
  --foreground: #ffffff;
  --glass-bg: rgba(14, 14, 18, 0.55);
  --glass-border: rgba(255, 255, 255, 0.09);
  --glass-border-hover: rgba(255, 255, 255, 0.28);
  --inner-glow: inset 0 1px 1px 0 rgba(255, 255, 255, 0.35), inset 0 0 16px 0 rgba(255, 255, 255, 0.04);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  background-color: #000000;
  color: #ffffff;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

::selection {
  background: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #000000;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

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

/* Utility Containers */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Glass Navbar */
.glass-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(8, 8, 10, 0.65);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 -1px 1px 0 rgba(0, 0, 0, 0.4), 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  transition: all 0.3s ease;
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.brand-icon-box {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.3);
  overflow: hidden;
}

.brand-icon-box img {
  width: 20px;
  height: 20px;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.brand-logo:hover .brand-icon-box img {
  transform: scale(1.1);
}

/* Liquid Navbar Capsule */
.nav-capsule {
  position: relative;
  display: none;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.15);
}

@media (min-width: 768px) {
  .nav-capsule {
    display: flex;
  }
}

.nav-link {
  position: relative;
  z-index: 2;
  padding: 6px 16px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.65);
  border-radius: 9999px;
  transition: color 0.25s ease;
  user-select: none;
}

.nav-link:hover {
  color: #ffffff;
}

.nav-link.active {
  color: #ffffff;
  font-weight: 600;
}

/* Sliding Liquid Morph Pill */
.nav-liquid-pill {
  position: absolute;
  top: 4px;
  left: 4px;
  height: calc(100% - 8px);
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: inset 0 1px 1.5px 0 rgba(255, 255, 255, 0.5),
              inset 0 0 16px 0 rgba(255, 255, 255, 0.06),
              0 0 20px rgba(255, 255, 255, 0.12);
  z-index: 1;
  pointer-events: none;
  transition: all 0.4s cubic-bezier(0.34, 1.45, 0.64, 1);
}

/* Nav Actions */
.nav-actions {
  display: none;
  align-items: center;
  gap: 12px;
}

@media (min-width: 768px) {
  .nav-actions {
    display: flex;
  }
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: block;
  background: none;
  border: none;
  color: #ffffff;
  cursor: pointer;
  padding: 8px;
}

@media (min-width: 768px) {
  .mobile-toggle {
    display: none;
  }
}

.mobile-dropdown {
  display: none;
  flex-direction: column;
  padding: 1rem 1.5rem;
  background: rgba(14, 14, 18, 0.95);
  backdrop-filter: blur(24px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  gap: 0.5rem;
}

.mobile-dropdown.open {
  display: flex;
}

.mobile-dropdown a {
  padding: 0.6rem 1rem;
  border-radius: 8px;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

.mobile-dropdown a.active {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Liquid Glowing Buttons */
.btn-liquid-primary {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2.25rem;
  background: linear-gradient(180deg, #ffffff 0%, #e4e4e7 100%);
  color: #000000;
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow: inset 0 1px 1px 0 rgba(255, 255, 255, 0.95),
              inset 0 -2px 4px 0 rgba(0, 0, 0, 0.2),
              0 0 25px rgba(255, 255, 255, 0.35),
              0 10px 20px -5px rgba(0, 0, 0, 0.5);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  overflow: hidden;
  text-decoration: none;
}

.btn-liquid-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
  transform: skewX(-20deg);
  transition: 0.75s ease;
}

.btn-liquid-primary:hover::after {
  left: 140%;
}

.btn-liquid-primary:hover {
  transform: translateY(-1px) scale(1.02);
  background: #ffffff;
  box-shadow: inset 0 1px 2px 0 #ffffff,
              0 0 40px rgba(255, 255, 255, 0.6),
              0 12px 25px -5px rgba(0, 0, 0, 0.6);
}

.btn-liquid-primary.sm {
  padding: 0.45rem 1.15rem;
  font-size: 0.75rem;
}

.btn-liquid-secondary {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2.25rem;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  color: #ffffff;
  font-weight: 500;
  font-size: 0.875rem;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: inset 0 1px 1px 0 rgba(255, 255, 255, 0.35),
              inset 0 0 14px 0 rgba(255, 255, 255, 0.03),
              0 8px 20px -6px rgba(0, 0, 0, 0.5);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  text-decoration: none;
}

.btn-liquid-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.35);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: inset 0 1px 2px 0 rgba(255, 255, 255, 0.5),
              inset 0 0 20px 0 rgba(255, 255, 255, 0.08),
              0 0 25px rgba(255, 255, 255, 0.15),
              0 10px 25px -5px rgba(0, 0, 0, 0.6);
}

.btn-liquid-secondary.sm {
  padding: 0.45rem 1.15rem;
  font-size: 0.75rem;
}

/* Glass Status Badges with Inner Rim */
.subtle-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  box-shadow: inset 0 1px 1px 0 rgba(255, 255, 255, 0.3),
              0 4px 12px rgba(0, 0, 0, 0.4);
}

.pulsing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 8px #34d399;
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

/* Liquid Glass Panels */
.glass-panel {
  background: rgba(14, 14, 18, 0.55);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1.5rem;
  box-shadow: inset 0 1px 1px 0 rgba(255, 255, 255, 0.25), 
              inset 0 0 20px 0 rgba(255, 255, 255, 0.02),
              0 20px 40px -15px rgba(0, 0, 0, 0.7);
}

/* Liquid Glass Cards with Glowing Top Edges */
.feature-card {
  position: relative;
  background: rgba(14, 14, 18, 0.45);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1.5rem;
  box-shadow: inset 0 1px 1px 0 rgba(255, 255, 255, 0.2),
              inset 0 0 24px 0 rgba(255, 255, 255, 0.02),
              0 15px 35px -10px rgba(0, 0, 0, 0.6);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
  padding: 2rem;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.4) 50%, transparent 100%);
  opacity: 0.6;
  transition: opacity 0.4s ease;
}

.feature-card:hover {
  background: rgba(22, 22, 28, 0.65);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-3px);
  box-shadow: inset 0 1px 2px 0 rgba(255, 255, 255, 0.4),
              inset 0 0 30px 0 rgba(255, 255, 255, 0.05),
              0 25px 50px -15px rgba(0, 0, 0, 0.8),
              0 0 35px rgba(255, 255, 255, 0.05);
}

.feature-card:hover::before {
  opacity: 1;
}

/* Glass Icon Box */
.glass-icon-box {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: inset 0 1px 1px 0 rgba(255, 255, 255, 0.3),
              inset 0 0 10px 0 rgba(255, 255, 255, 0.02);
  margin-bottom: 1.25rem;
  transition: all 0.3s ease;
  color: #ffffff;
}

.feature-card:hover .glass-icon-box {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: inset 0 1px 2px 0 rgba(255, 255, 255, 0.5),
              0 0 20px rgba(255, 255, 255, 0.15);
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 94vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem 4rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('assets/space-earth-bg.png'), url('space-earth-bg.png');
  background-size: cover;
  background-position: center 28%;
  background-repeat: no-repeat;
  opacity: 0.9;
  z-index: 0;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, transparent 0%, rgba(0, 0, 0, 0.3) 50%, rgba(0, 0, 0, 0.85) 100%),
              linear-gradient(to top, #000000 0%, rgba(0, 0, 0, 0.4) 50%, rgba(0, 0, 0, 0.75) 100%);
}

.hero-ambient-glow {
  position: absolute;
  top: 35%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 380px;
  background: rgba(255, 255, 255, 0.05);
  filter: blur(140px);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 850px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-title {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 1.5rem;
}

.hero-title-gradient {
  background: linear-gradient(180deg, #ffffff 0%, rgba(255, 255, 255, 0.95) 50%, rgba(255, 255, 255, 0.6) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 50px rgba(255, 255, 255, 0.3));
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(212, 212, 216, 0.9);
  max-width: 620px;
  margin: 0 auto 2.5rem;
  font-weight: 400;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* Metrics Strip */
.metrics-strip {
  margin-top: 4rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  width: 100%;
  max-width: 750px;
  padding: 1.5rem 2rem;
  text-align: left;
}

@media (min-width: 640px) {
  .metrics-strip {
    grid-template-columns: repeat(4, 1fr);
  }
}

.metric-val {
  font-size: 1.5rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.02em;
}

.metric-lbl {
  font-size: 0.75rem;
  color: #a1a1aa;
  font-weight: 500;
}

/* Section Common */
.section {
  padding: 6rem 1.5rem;
  position: relative;
  z-index: 10;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 0.95rem;
  color: #a1a1aa;
  max-width: 540px;
  margin: 0 auto;
}

/* Grid Layouts */
.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (min-width: 768px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Interactive Tabs & Fluid Morphing Pill */
.tabs-capsule {
  position: relative;
  display: inline-flex;
  gap: 6px;
  padding: 4px;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.15);
}

.tab-btn {
  position: relative;
  z-index: 2;
  padding: 8px 16px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #a1a1aa;
  border-radius: 0.75rem;
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.25s ease;
  user-select: none;
}

.tab-btn:hover {
  color: #ffffff;
}

.tab-btn.active {
  color: #000000;
  font-weight: 700;
}

.liquid-tab-slider {
  position: absolute;
  top: 4px;
  left: 4px;
  height: calc(100% - 8px);
  border-radius: 0.75rem;
  background: linear-gradient(180deg, #ffffff 0%, #ececed 100%);
  box-shadow: inset 0 1.5px 1.5px 0 rgba(255, 255, 255, 1),
              inset 0 -2px 4px 0 rgba(0, 0, 0, 0.25),
              0 0 30px rgba(255, 255, 255, 0.45),
              0 6px 16px -2px rgba(0, 0, 0, 0.6);
  z-index: 1;
  pointer-events: none;
  transition: all 0.4s cubic-bezier(0.34, 1.45, 0.64, 1);
  overflow: hidden;
}

.liquid-tab-slider::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.6) 50%, transparent 100%);
  background-size: 200% 100%;
  animation: liquid-sheen 3.5s ease-in-out infinite;
}

@keyframes liquid-sheen {
  0% { transform: translateX(-150%) skewX(-25deg); }
  50%, 100% { transform: translateX(150%) skewX(-25deg); }
}

.tab-content {
  display: none;
  animation: fadeInTab 0.35s ease-out forwards;
}

.tab-content.active {
  display: block;
}

@keyframes fadeInTab {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Call to Action Box */
.cta-banner {
  position: relative;
  text-align: center;
  padding: 4rem 2rem;
  overflow: hidden;
}

.cta-banner-light {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.7), transparent);
}

/* Footer */
.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 3rem 1.5rem;
  background: #000000;
  font-size: 0.75rem;
  color: #71717a;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .footer-content {
    flex-direction: row;
  }
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-links a:hover {
  color: #ffffff;
}