/* Xpilot Website - Custom Styles */

/* ===== CSS Variables ===== */
:root {
  /* Brand Colors */
  --gradient-primary: linear-gradient(to bottom right, #0034AD, #911CF3);
  --color-ai-blue: #0034AD;
  --color-ai-purple: #911CF3;
  --color-navy: #1a1a2e;
  
  /* Neutral Colors */
  --color-white: #ffffff;
  --color-light-bg: #ececec;
  --color-dark-bg: #0e0c16;
  --color-dark-text: #ececec;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Shadows */
  --shadow-inset: inset 0 -8px 0 rgba(221, 219, 222, 0.3);
  --shadow-outer: 0 12px 24px rgba(221, 219, 222, 0.6);
  --shadow-card: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-card-hover: 0 10px 20px rgba(0, 0, 0, 0.15);
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  
  /* Transitions */
  --transition-base: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-navy);
  background-color: var(--color-white);
  transition: var(--transition-base);
}

/* Dark Mode */
body.dark {
  background-color: var(--color-dark-bg);
  color: var(--color-dark-text);
}

/* ===== Typography ===== */
.font-gmarket {
  font-family: 'Gmarket Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

/* ===== Layout Components ===== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }
}

/* ===== Background Image ===== */
.bg-ai-img {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: -10;
  max-width: none;
  pointer-events: none;
  user-select: none;
}

/* ===== Logo Box (Glassmorphism) ===== */
.logo-box {
  width: 8.375rem;
  height: 8.375rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-inset), var(--shadow-outer);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

.dark .logo-box {
  box-shadow: inset 0 -8px 0 rgba(255, 255, 255, 0.1), 
              0 12px 24px rgba(0, 0, 0, 0.3);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 2rem;
  border-radius: 9999px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition-base);
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 12px rgba(145, 28, 243, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(145, 28, 243, 0.4);
}

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

.btn-secondary:hover {
  background: var(--color-ai-purple);
  color: white;
}

.dark .btn-secondary {
  color: var(--color-dark-text);
  border-color: var(--color-dark-text);
}

.dark .btn-secondary:hover {
  background: var(--color-dark-text);
  color: var(--color-dark-bg);
}

/* ===== Cards ===== */
.card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  transition: var(--transition-base);
}

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

.dark .card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

/* ===== Utility Classes ===== */
.section-padding {
  padding: 4rem 0;
}

@media (min-width: 768px) {
  .section-padding {
    padding: 6rem 0;
  }
}

.text-balance {
  text-wrap: balance;
}

/* ===== Responsive Utilities ===== */
@media (max-width: 767px) {
  .mobile-hidden {
    display: none;
  }
}

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