/* ==========================================================================
   VIDSUS TECHNOLOGIES PVT LTD - CORE DESIGN SYSTEM & TOKENS
   Theme: High-End Modern Light Theme
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Brand Color Palette - Derived from the official 3D metallic blue logo */
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-300: #93c5fd;
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;
  --primary-950: #0f172a;

  /* Accent & Complementary */
  --accent-cyan: #06b6d4;
  --accent-cyan-light: #ecfeff;
  --accent-indigo: #4f46e5;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;

  /* Neutral Light Theme Palette */
  --bg-main: #ffffff;
  --bg-subtle: #f8fafc;
  --bg-muted: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #fafcff;
  --bg-glass: rgba(255, 255, 255, 0.88);
  --bg-glass-card: rgba(255, 255, 255, 0.94);

  /* Text & Content Tokens */
  --text-primary: #0f172a;       /* Slate 900 */
  --text-secondary: #334155;     /* Slate 700 */
  --text-muted: #64748b;         /* Slate 500 */
  --text-subtle: #94a3b8;        /* Slate 400 */
  --text-inverse: #ffffff;

  /* Borders & Dividers */
  --border-subtle: #f1f5f9;
  --border-default: #e2e8f0;
  --border-focus: #3b82f6;
  --border-glass: rgba(226, 232, 240, 0.8);
  --border-active: rgba(37, 99, 235, 0.35);

  /* Elevation & Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 4px -1px rgba(15, 23, 42, 0.06), 0 1px 2px -1px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 24px -4px rgba(15, 23, 42, 0.08), 0 4px 10px -3px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 32px -6px rgba(15, 23, 42, 0.10), 0 8px 16px -4px rgba(15, 23, 42, 0.05);
  --shadow-blue-glow: 0 12px 30px -5px rgba(37, 99, 235, 0.18);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.05), 0 10px 25px -5px rgba(15, 23, 42, 0.05);
  --shadow-card-hover: 0 20px 35px -8px rgba(37, 99, 235, 0.12), 0 4px 12px -2px rgba(15, 23, 42, 0.06);

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Sizing & Spacing */
  --container-max: 1280px;
  --container-wide: 1400px;
  --header-height: 80px;
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 350ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ==========================================================================
   Base CSS Reset & Normalization
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px;
  background-color: var(--bg-main);
  color: var(--text-primary);
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
  background-color: var(--bg-main);
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img, picture, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

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

ul, ol {
  list-style: none;
}

/* ==========================================================================
   Typography Standards
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

h1 {
  font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(1.85rem, 3.5vw + 0.5rem, 2.75rem);
  letter-spacing: -0.03em;
}

h3 {
  font-size: clamp(1.35rem, 2vw + 0.5rem, 1.75rem);
}

h4 {
  font-size: 1.25rem;
}

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

p.lead {
  font-size: 1.15rem;
  line-height: 1.65;
  color: var(--text-muted);
  font-weight: 400;
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-500) 50%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

.text-gradient-alt {
  background: linear-gradient(135deg, var(--primary-800) 0%, var(--accent-indigo) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container-wide {
  width: 100%;
  max-width: var(--container-wide);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding-top: 6rem;
  padding-bottom: 6rem;
  position: relative;
}

.section-subtle {
  background-color: var(--bg-subtle);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 3.5rem auto;
}

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

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  background-color: var(--primary-50);
  color: var(--primary-700);
  border: 1px solid var(--primary-200);
  margin-bottom: 1rem;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--primary-600);
}

.badge-emerald {
  background-color: #ecfdf5;
  color: #065f46;
  border-color: #a7f3d0;
}
.badge-emerald .badge-dot {
  background-color: #10b981;
}

/* ==========================================================================
   Button System
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  padding: 0.75rem 1.625rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  white-space: nowrap;
  user-select: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
  color: var(--text-inverse);
  box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
  box-shadow: 0 8px 22px 0 rgba(37, 99, 235, 0.45);
  transform: translateY(-2px);
  color: var(--text-inverse);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--bg-subtle);
  border-color: var(--primary-300);
  color: var(--primary-700);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: var(--primary-700);
  border: 1.5px solid var(--primary-500);
}

.btn-outline:hover {
  background-color: var(--primary-50);
  border-color: var(--primary-600);
  color: var(--primary-800);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.95rem 2rem;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn-icon-only {
  padding: 0.625rem;
  border-radius: var(--radius-md);
}

/* ==========================================================================
   Card Styling Base
   ========================================================================== */

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

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

.card-glass {
  background: var(--bg-glass-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
}

/* ==========================================================================
   Form Controls
   ========================================================================== */

.form-group {
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form-label {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.9375rem;
  color: var(--text-primary);
  background-color: var(--bg-main);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-control:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-control::placeholder {
  color: var(--text-subtle);
}

textarea.form-control {
  resize: vertical;
  min-height: 110px;
}

/* ==========================================================================
   Utility Helpers
   ========================================================================== */

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.font-mono { font-family: var(--font-mono); }
.w-100 { width: 100%; }