/* ==========================================================================
   ECUBE Global Design System & CSS Variables
   Theme: Vibrant Modern Education Platform (Explore • Educate • Enhance)
   ========================================================================== */

:root {
  /* Brand Palette */
  /* --primary-teal: #00a896;
  --primary-teal-dark: #028071; */
  --primary-teal: #039eaa;
  --primary-teal-dark: #039eaa;
  --primary-teal-light: #e6f7f5;
  --primary-teal-glow: rgba(0, 168, 150, 0.25);

  --accent-coral: #f43f5e;
  --accent-coral-dark: #e11d48;
  --accent-coral-light: #fff1f2;

  --accent-blue: #0284c7;
  --accent-blue-light: #f0f9ff;

  --accent-purple: #8b5cf6;
  --accent-purple-light: #f5f3ff;

  --accent-orange: #f97316;
  --accent-orange-light: #fff7ed;

  --accent-amber: #f59e0b;

  /* Neutrals & Dark Tones */
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-subtle: #f1f5f9;

  --dark-navy: #0b132b;
  --dark-navy-card: #1c2541;

  /* Gradients */
  --grad-hero-btn: linear-gradient(135deg, #00a896 0%, #0284c7 100%);
  --grad-coral-btn: linear-gradient(135deg, #f43f5e 0%, #fb7185 100%);
  --grad-stats-bar: linear-gradient(90deg, #f43f5e 0%, #8b5cf6 50%, #00a896 100%);
  --grad-cta-banner: linear-gradient(135deg, #009688 0%, #1e88e5 50%, #e91e63 100%);
  --grad-cta-soft: linear-gradient(135deg, rgba(0, 168, 150, 0.08) 0%, rgba(244, 63, 94, 0.08) 100%);
  --grad-rainbow-text: linear-gradient(90deg, #00b4d8 0%, #3b82f6 22%, #8b5cf6 48%, #ec4899 72%, #ff6b4a 100%);

  /* Typography */
  --font-sans: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;

  /* Shadows & Elevation */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 4px 14px rgba(15, 23, 42, 0.06), 0 2px 6px rgba(15, 23, 42, 0.03);
  --shadow-lg: 0 12px 30px rgba(15, 23, 42, 0.08), 0 4px 10px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 40px rgba(15, 23, 42, 0.12), 0 8px 16px rgba(15, 23, 42, 0.06);
  --shadow-hover: 0 18px 36px rgba(0, 168, 150, 0.15), 0 6px 14px rgba(0, 0, 0, 0.05);

  /* Borders & Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  --border-light: 1px solid #e2e8f0;

  /* Transitions */
  --trans-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --trans-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-sans);
  color: var(--text-main);
  background-color: var(--bg-page);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

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

/* Utility Containers */
.ecube-container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* Section Header Shared Styles */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem auto;
}

.section-tag {
  display: inline-block;
  font-size: 0.825rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary-teal);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 2.15rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

.accent-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 0.75rem auto 0;
}

.accent-bar span {
  display: inline-block;
  height: 4px;
  border-radius: 4px;
}

.accent-bar .bar-1 {
  width: 28px;
  background: #0284c7;
}

.accent-bar .bar-2 {
  width: 28px;
  background: #f43f5e;
}