/* ==========================================================================
   CSE ALLY — DESIGN SYSTEM & TOKENS (CSS)
   ========================================================================== */

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

:root {
  /* Brand Colors */
  --color-primary: #0F3277;
  --color-primary-dark: #0A2254;
  --color-primary-light: #1A4AB0;
  --color-primary-rgb: 15, 50, 119;
  
  --color-accent: #FF9F1C;
  --color-accent-hover: #F28C00;
  --color-accent-soft: rgba(255, 159, 28, 0.12);
  
  --color-secondary: #00B4D8;
  --color-secondary-soft: rgba(0, 180, 216, 0.12);
  
  --color-success: #10B981;
  --color-success-soft: rgba(16, 185, 129, 0.12);
  
  --color-danger: #EF4444;
  
  /* Neutral & Light Palette */
  --bg-page: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-card-glass: rgba(255, 255, 255, 0.82);
  --border-card: rgba(226, 232, 240, 0.8);
  --border-glass: rgba(255, 255, 255, 0.6);
  
  --text-main: #0F172A;
  --text-muted: #475569;
  --text-soft: #64748B;
  --text-light: #94A3B8;
  
  /* Dark Sections */
  --dark-bg: #0A1128;
  --dark-surface: #101C3D;
  --dark-card: #152550;
  --dark-border: rgba(255, 255, 255, 0.1);
  --dark-text: #F8FAFC;
  --dark-muted: #94A3B8;

  /* Typography */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Elevations & Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
  --shadow-glow: 0 10px 30px -5px rgba(15, 50, 119, 0.25);
  --shadow-glow-accent: 0 10px 25px -5px rgba(255, 159, 28, 0.35);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ==========================================================================
   Base & Reset
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

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

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

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

button, input, select, textarea {
  font-family: inherit;
}

/* ==========================================================================
   Layout Containers & Utilities
   ========================================================================== */

.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container-narrow {
  max-width: 860px;
}

.section-padding {
  padding-top: 96px;
  padding-bottom: 96px;
}

@media (max-width: 768px) {
  .section-padding {
    padding-top: 64px;
    padding-bottom: 64px;
  }
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background-color: var(--color-accent-soft);
  color: #D97706;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
  border: 1px solid rgba(255, 159, 28, 0.25);
}

.section-tag.blue {
  background-color: rgba(15, 50, 119, 0.08);
  color: var(--color-primary);
  border-color: rgba(15, 50, 119, 0.18);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.2;
  color: var(--text-main);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   Interactive Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(15, 50, 119, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(15, 50, 119, 0.4);
}

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
  color: #FFFFFF;
  box-shadow: var(--shadow-glow-accent);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -4px rgba(255, 159, 28, 0.45);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-main);
  border-color: var(--border-card);
}

.btn-outline:hover {
  background-color: #FFFFFF;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Store App Badges */
.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 10px 20px;
  background-color: #0A0F1D;
  color: #FFFFFF;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: all var(--transition-normal);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  text-decoration: none;
}

.store-btn:hover {
  transform: translateY(-2px);
  background-color: #151D33;
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  color: #FFFFFF;
}

.store-btn svg {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.store-btn-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.15;
}

.store-btn-subtitle {
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.8;
}

.store-btn-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* Animations */
@keyframes floatSlow {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

.animate-float {
  animation: floatSlow 5s ease-in-out infinite;
}