/* ==========================================================================
   KVEE TECH ENTERPRISES - DESIGN SYSTEM & MAIN STYLES
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800;900&family=Open+Sans:wght@300;400;500;600;700&display=swap');

:root {
  /* Brand Color Palette */
  --color-primary: #002b49;
  --color-primary-dark: #001a2c;
  --color-primary-light: #0d4169;
  --color-accent: #f37021;
  --color-accent-hover: #d95a10;
  --color-accent-light: #ff8533;
  --color-secondary: #005a9c;
  
  /* Neutral Colors */
  --color-white: #ffffff;
  --color-bg-light: #f8fafd;
  --color-bg-alt: #edf2f7;
  --color-border: #e2e8f0;
  --color-border-dark: #cbd5e0;
  --color-text-main: #2d3748;
  --color-text-muted: #5a6a80;
  --color-text-light: #a0aec0;
  
  /* Status Colors */
  --color-success: #38a169;
  --color-warning: #ecc94b;
  --color-danger: #e53e3e;
  
  /* Typography */
  --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Spacing */
  --container-max-width: 1240px;
  --header-height: 80px;
  --topbar-height: 40px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 43, 73, 0.06);
  --shadow-md: 0 6px 16px rgba(0, 43, 73, 0.08);
  --shadow-lg: 0 12px 28px rgba(0, 43, 73, 0.12);
  --shadow-xl: 0 20px 40px rgba(0, 43, 73, 0.16);
  --shadow-accent: 0 8px 20px rgba(243, 112, 33, 0.25);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-text-main);
  background-color: var(--color-white);
  line-height: 1.65;
  overflow-x: hidden;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  line-height: 1.25;
  font-weight: 700;
}

h1 { font-size: 2.75rem; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.2rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p {
  margin-bottom: 1rem;
  color: var(--color-text-muted);
}

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

a:hover {
  color: var(--color-accent-hover);
}

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

ul, ol {
  list-style: none;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* Section Common Styles */
.section {
  padding: 80px 0;
  position: relative;
}

.section-bg-light {
  background-color: var(--color-bg-light);
}

.section-bg-dark {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.section-bg-dark p {
  color: #c2d1e0;
}

.section-bg-dark h1,
.section-bg-dark h2,
.section-bg-dark h3,
.section-bg-dark h4 {
  color: var(--color-white);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 50px;
}

.section-subtitle {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.section-title {
  font-size: 2.25rem;
  margin-bottom: 15px;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--color-accent);
  margin: 12px auto 0;
  border-radius: 2px;
}

.section-header.text-left {
  text-align: left;
  margin-left: 0;
}

.section-header.text-left .section-title::after {
  margin-left: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
}

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

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(243, 112, 33, 0.35);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-outline-white {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn-outline-white:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

/* Grid System Utilities */
.grid {
  display: grid;
  gap: 30px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Flex Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-10 { gap: 10px; }
.gap-20 { gap: 20px; }
.gap-30 { gap: 30px; }

/* Badges */
.badge {
  display: inline-block;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
}

.badge-accent {
  background-color: rgba(243, 112, 33, 0.12);
  color: var(--color-accent);
}

/* Responsive Utilities */
@media (max-width: 992px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.85rem; }
  .section { padding: 60px 0; }
}

@media (max-width: 768px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  h1 { font-size: 1.85rem; }
  h2 { font-size: 1.6rem; }
  .section { padding: 50px 0; }
}