/* JumpEngine Website - Custom Styles */

/* ========================================
   CSS Variables - Design System
   ======================================== */
:root {
  /* Brand Colors */
  --color-ev: #1E6FFF;
  --color-ev-dark: #0050E0;
  --color-ev-light: #E8F0FF;
  --color-je-cyan: #08EFD2;
  --color-je-blue: #0CD0E9;
  --color-je-pink: #F90975;

  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-gray-50: #F8FAFB;
  --color-gray-100: #F1F3F5;
  --color-gray-600: #6B7280;
  --color-gray-900: #1A1D21;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-card: 0 2px 20px rgba(0, 0, 0, 0.04);
  --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.1);

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease-out;
}

/* ========================================
   Base Styles
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-gray-900);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   Utility Classes
   ======================================== */

/* Glass Effect */
.glass {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Gradient Backgrounds */
.bg-gradient-ev {
  background: linear-gradient(135deg, var(--color-ev) 0%, var(--color-ev-dark) 100%);
}

.bg-gradient-hero {
  background: linear-gradient(135deg, #1E6FFF 0%, #0050E0 50%, #003BA8 100%);
}

.bg-gradient-light {
  background: linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

/* ========================================
   Animation Keyframes
   ======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes stagger {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* ========================================
   Scroll Reveal Animations
   ======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Staggered animation delays for grid items */
.stagger-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease-out, transform 0.3s ease-out;
  transition-delay: var(--delay, 0ms);
}

.stagger-item.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   Card Styles
   ======================================== */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

/* ========================================
   Button Styles
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-ev);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-ev-dark);
  box-shadow: 0 4px 12px rgba(30, 111, 255, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--color-ev);
  border: 2px solid var(--color-ev);
}

.btn-secondary:hover {
  background: var(--color-ev-light);
}

.btn-outline {
  background: transparent;
  color: var(--color-gray-900);
  border: 1px solid var(--color-gray-100);
}

.btn-outline:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-600);
}

/* ========================================
   Icon Placeholder
   ======================================== */
.icon-placeholder {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
}

.icon-gradient-1 {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.icon-gradient-2 {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.icon-gradient-3 {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.icon-gradient-4 {
  background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.icon-gradient-5 {
  background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.icon-gradient-6 {
  background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}

/* ========================================
   Counter Animation
   ======================================== */
.counter {
  font-variant-numeric: tabular-nums;
}

/* ========================================
   Responsive Utilities
   ======================================== */
@media (max-width: 768px) {
  html {
    font-size: 14px;
  }

  .mobile-stack {
    flex-direction: column;
  }

  .mobile-full-width {
    width: 100%;
  }
}

/* ========================================
   Reduced Motion Preference
   ======================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .fade-in,
  .slide-in-left,
  .slide-in-right,
  .stagger-item {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .card:hover {
    transform: none;
  }
}

/* ========================================
   Focus Visible Styles (Accessibility)
   ======================================== */
:focus-visible {
  outline: 2px solid var(--color-ev);
  outline-offset: 2px;
}

/* ========================================
   Selection Styles
   ======================================== */
::selection {
  background: var(--color-ev-light);
  color: var(--color-ev-dark);
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
  header,
  footer,
  .no-print {
    display: none;
  }

  body {
    color: #000;
    background: #fff;
  }
}