/* ============================================================
   COTYLEDONE — Global Design System
   ============================================================ */
/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* Backgrounds */
  --bg-primary: #FAFAFA;
  --bg-secondary: #F3F4F6;
  --bg-tertiary: #E5E7EB;
  --bg-card: rgba(255, 255, 255, 0.8);
  --glass-bg: rgba(255, 255, 255, 0.6);
  --glass-bg-strong: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(0, 0, 0, 0.08);
  --glass-border-hover: rgba(0, 0, 0, 0.15);
  /* Text */
  --text-heading: #0F172A;
  --text-body: #334155;
  --text-muted: #64748B;
  --text-white: #FFFFFF;
  /* Accents */
  --accent-cyan: #06B6D4;
  --accent-indigo: #6366F1;
  --accent-purple: #8B5CF6;
  --accent-gradient: linear-gradient(135deg, #06B6D4, #6366F1);
  --accent-gradient-reverse: linear-gradient(135deg, #6366F1, #06B6D4);
  --glow-cyan: 0 0 25px rgba(6, 182, 212, 0.35);
  --glow-indigo: 0 0 25px rgba(99, 102, 241, 0.35);
  --glow-cyan-strong: 0 0 40px rgba(6, 182, 212, 0.5);
  /* Typography */
  --font-heading: 'Syne', sans-serif;
  --font-body: 'Inter', sans-serif;
  /* Spacing */
  --section-py: 120px;
  --container-max: 1200px;
  --container-px: 24px;
  /* Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  /* Z-Index Scale */
  --z-base: 1;
  --z-nav: 100;
  --z-overlay: 200;
  --z-modal: 300;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-body);
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

ul,
ol {
  list-style: none;
}

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

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

input,
textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
  background: none;
}

/* --- Typography --- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--text-heading);
  line-height: 1.2;
  font-weight: 700;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

h4 {
  font-size: 1.125rem;
}

p {
  max-width: 65ch;
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.overline {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 12px;
  display: block;
}

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

.section {
  padding: var(--section-py) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header p {
  margin: 16px auto 0;
  max-width: 600px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 640px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  /* .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  } */
}

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

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

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-nav);
  padding: 20px 0;
  transition: background var(--transition-base), padding var(--transition-base),
    border-color var(--transition-base), box-shadow var(--transition-base);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  border-bottom-color: var(--glass-border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.navbar-links {
  display: none;
  align-items: center;
  gap: 8px;
}

.navbar-links a {
  position: relative;
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-body);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.navbar-links a:hover {
  color: var(--text-heading);
  background: rgba(0, 0, 0, 0.05);
}

.navbar-links a.active {
  color: var(--accent-cyan);
}

.navbar-links a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--accent-gradient);
  border-radius: 2px;
}

/* CTA in nav */
.navbar-cta {
  display: none;
  padding: 10px 24px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--bg-primary);
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  transition: box-shadow var(--transition-base), transform var(--transition-fast);
}

.navbar-cta:hover {
  box-shadow: var(--glow-cyan);
  transform: scale(1.05);
}

/* Mobile menu button */
.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--text-heading);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.menu-toggle:hover {
  background: rgba(0, 0, 0, 0.05);
}

/* Mobile overlay menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100vh;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  z-index: var(--z-overlay);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 8px;
  transition: right var(--transition-slow);
}

.mobile-menu.open {
  right: 0;
}

.mobile-menu a {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-body);
  padding: 12px 24px;
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.mobile-menu a:hover,
.mobile-menu a.active {
  color: var(--accent-cyan);
  background: rgba(0, 0, 0, 0.05);
}

.mobile-menu-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-heading);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.mobile-menu-close:hover {
  background: rgba(0, 0, 0, 0.1);
}

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

  .navbar-cta {
    display: inline-flex;
  }

  .menu-toggle {
    display: none;
  }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: 80px 0 40px;
  border-top: 1px solid;
  border-image: var(--accent-gradient) 1;
  background: var(--bg-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand .navbar-logo {
  font-size: 1.75rem;
  margin-bottom: 16px;
  display: inline-block;
}

.footer-brand p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  max-width: 300px;
}

.footer-col h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-heading);
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer-col ul li a:hover {
  color: var(--accent-cyan);
  padding-left: 4px;
}

.footer-socials {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer-socials a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  transition: color var(--transition-fast), border-color var(--transition-fast),
    box-shadow var(--transition-base), transform var(--transition-fast);
}

.footer-socials a:hover {
  color: var(--accent-cyan);
  border-color: rgba(6, 182, 212, 0.3);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }
}

/* ============================================================
   REUSABLE COMPONENTS
   ============================================================ */
/* --- Glass Card --- */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: transform var(--transition-base), border-color var(--transition-base),
    box-shadow var(--transition-base), background var(--transition-base);
}

.glass-card:hover {
  transform: translateY(-6px);
  border-color: rgba(6, 182, 212, 0.25);
  box-shadow: 0 8px 40px rgba(6, 182, 212, 0.1), 0 0 0 1px rgba(6, 182, 212, 0.1);
  background: var(--glass-bg-strong);
}

/* --- Glow Button --- */
.glow-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--bg-primary);
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  transition: box-shadow var(--transition-base), transform var(--transition-spring);
  position: relative;
  overflow: hidden;
}

.glow-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.glow-btn:hover {
  box-shadow: var(--glow-cyan-strong);
  transform: scale(1.05);
}

.glow-btn:hover::before {
  opacity: 1;
}

.glow-btn .btn-arrow {
  transition: transform var(--transition-base);
}

.glow-btn:hover .btn-arrow {
  transform: translateX(4px);
}

/* Secondary outline button */
.outline-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-heading);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  background: var(--glass-bg);
  transition: border-color var(--transition-base), box-shadow var(--transition-base),
    transform var(--transition-spring), background var(--transition-base);
}

.outline-btn:hover {
  border-color: rgba(6, 182, 212, 0.3);
  box-shadow: var(--glow-cyan);
  transform: scale(1.03);
  background: var(--glass-bg-strong);
}

/* --- Icon Box --- */
.icon-box {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--accent-cyan);
  margin-bottom: 20px;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.glass-card:hover .icon-box {
  box-shadow: var(--glow-cyan);
  border-color: rgba(6, 182, 212, 0.3);
}

/* ============================================================
   ANIMATED BACKGROUND ORBS
   ============================================================ */
.bg-orbs {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.25;
  animation: float-orb 18s ease-in-out infinite;
}

.bg-orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-cyan), transparent 70%);
  top: -10%;
  right: -5%;
  animation-delay: 0s;
}

.bg-orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-indigo), transparent 70%);
  bottom: -5%;
  left: -5%;
  animation-delay: -7s;
}

.bg-orb-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--accent-purple), transparent 70%);
  top: 40%;
  left: 30%;
  animation-delay: -12s;
}

@keyframes float-orb {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  25% {
    transform: translate(30px, -40px) scale(1.05);
  }

  50% {
    transform: translate(-20px, 20px) scale(0.95);
  }

  75% {
    transform: translate(15px, 30px) scale(1.02);
  }
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   DOT GRID PATTERN
   ============================================================ */
.dot-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(0, 0, 0, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* ============================================================
   GRADIENT DIVIDER
   ============================================================ */
.gradient-divider {
  width: 80px;
  height: 3px;
  background: var(--accent-gradient);
  border-radius: 3px;
  margin: 0 auto;
}

.gradient-divider.left {
  margin: 0;
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.relative {
  position: relative;
}

.z-1 {
  z-index: var(--z-base);
}

.text-center {
  text-align: center;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.mt-1 {
  margin-top: 8px;
}

.mt-2 {
  margin-top: 16px;
}

.mt-3 {
  margin-top: 24px;
}

.mt-4 {
  margin-top: 32px;
}

.mt-5 {
  margin-top: 48px;
}

.mb-1 {
  margin-bottom: 8px;
}

.mb-2 {
  margin-bottom: 16px;
}

.mb-3 {
  margin-bottom: 24px;
}

.gap-2 {
  gap: 16px;
}

.flex {
  display: flex;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.inline-flex {
  display: inline-flex;
}

/* Page top padding to account for fixed navbar */
main {
  padding-top: 80px;
}