/* ==============================================
   ARX ASSIST — Design System Global
   ============================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;600;700;800;900&display=swap');

/* ---- Custom Properties ---- */
:root {
  /* Brand Colors */
  --color-primary: #143577;
  --color-primary-dark: #0d2455;
  --color-primary-light: #1e4fa3;
  --color-secondary: #6db968;
  --color-secondary-dark: #4fa34a;
  --color-secondary-light: #8dd489;

  /* Neutrals */
  --color-white: #ffffff;
  --color-off-white: #f5f8ff;
  --color-light: #eef2fb;
  --color-gray-100: #e8edf7;
  --color-gray-200: #d0d9ef;
  --color-gray-400: #8898c5;
  --color-gray-600: #4a5a85;
  --color-dark: #0a1a3d;
  --color-text: #1a2a4a;
  --color-text-muted: #5a6a8a;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #143577 0%, #1e4fa3 100%);
  --gradient-secondary: linear-gradient(135deg, #4fa34a 0%, #6db968 100%);
  --gradient-hero: linear-gradient(150deg, #0d2455 0%, #143577 50%, #1a4098 100%);
  --gradient-cta: linear-gradient(135deg, #143577 0%, #6db968 100%);

  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Outfit', 'Inter', sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(20, 53, 119, 0.08);
  --shadow-md: 0 4px 24px rgba(20, 53, 119, 0.12);
  --shadow-lg: 0 8px 48px rgba(20, 53, 119, 0.18);
  --shadow-xl: 0 16px 64px rgba(20, 53, 119, 0.24);
  --shadow-green: 0 8px 32px rgba(109, 185, 104, 0.35);
  --shadow-blue: 0 8px 32px rgba(20, 53, 119, 0.35);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Container */
  --container-max: 1280px;
  --container-padding: 1.5rem;
}

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

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

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

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

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

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-white { color: var(--color-white); }
.text-center { text-align: center; }

/* ---- Layout ---- */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.section {
  padding-block: var(--space-4xl);
}

.section-sm {
  padding-block: var(--space-2xl);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.875rem 2rem;
  border-radius: var(--radius-full);
  font-family: var(--font-main);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-blue);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(20, 53, 119, 0.45);
}

.btn-secondary {
  background: var(--gradient-secondary);
  color: var(--color-white);
  box-shadow: var(--shadow-green);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(109, 185, 104, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: white;
}

.btn-lg {
  padding: 1.125rem 2.5rem;
  font-size: 1.125rem;
}

/* ---- Section Header ---- */
.section-tag {
  display: inline-block;
  padding: 0.35rem 1rem;
  background: rgba(109, 185, 104, 0.12);
  color: var(--color-secondary-dark);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  color: var(--color-dark);
  margin-bottom: var(--space-md);
}

.section-title span {
  color: var(--color-primary);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin-inline: auto;
  line-height: 1.7;
}

/* ---- Cards ---- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 1px solid var(--color-gray-100);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

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

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(109, 185, 104, 0.4); }
  70% { transform: scale(1); box-shadow: 0 0 0 20px rgba(109, 185, 104, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(109, 185, 104, 0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

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

.animate-fadeInUp { animation: fadeInUp 0.6s ease both; }
.animate-fadeIn { animation: fadeIn 0.6s ease both; }
.animate-float { animation: float 4s ease-in-out infinite; }

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* ---- Utilities ---- */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-xl); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 1.25rem;
  }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding-block: var(--space-3xl); }
  .section-sm { padding-block: var(--space-xl); }
}

/* ---- Glassmorphism ---- */
.glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-light);
}
::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-dark);
}