/* ==============================================================================
   NEXORA DIGITAL - DESIGN SYSTEM & CORE STYLES
   Hyderabad's Premier Web Development & Digital Marketing Agency
   Palette: Deep Navy (#0B1220), Dark Blue (#111C32), Electric Blue (#2563EB)
   ============================================================================== */

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

:root {
  /* Core Color Tokens */
  --color-primary: #0B1220;
  --color-primary-rgb: 11, 18, 32;
  --color-secondary: #111C32;
  --color-secondary-rgb: 17, 28, 50;
  
  --color-accent: #2563EB;
  --color-accent-rgb: 37, 99, 235;
  --color-accent-hover: #3B82F6;
  --color-accent-light: rgba(37, 99, 235, 0.08);
  --color-accent-glow: rgba(37, 99, 235, 0.35);

  --color-dark-surface: #0E172A;
  --color-dark-card: #15223E;
  --color-dark-border: rgba(255, 255, 255, 0.1);
  --color-dark-text-muted: #94A3B8;

  --color-bg-light: #F8FAFC;
  --color-bg-white: #FFFFFF;
  --color-text-main: #172033;
  --color-text-muted: #64748B;
  --color-text-subtle: #94A3B8;
  --color-border: #E2E8F0;
  --color-border-light: #F1F5F9;

  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-danger: #EF4444;

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

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 5rem;
  --spacing-4xl: 7.5rem;

  /* Transitions & Shadows */
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.45s cubic-bezier(0.175, 0.885, 0.32, 1.275);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(11, 18, 32, 0.08), 0 2px 4px -2px rgba(11, 18, 32, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(11, 18, 32, 0.08), 0 4px 6px -4px rgba(11, 18, 32, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(11, 18, 32, 0.09), 0 8px 10px -6px rgba(11, 18, 32, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(11, 18, 32, 0.18);
  --shadow-accent: 0 10px 30px -5px rgba(37, 99, 235, 0.3);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  --max-width: 1320px;
  --max-width-wide: 1380px;
  --header-height: 80px;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Reset & Base Setup */
*, *::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-bg-white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.025em;
}

h1 {
  font-size: clamp(2.35rem, 4.5vw, 3.85rem);
  font-weight: 800;
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(1.85rem, 3.2vw, 2.75rem);
  letter-spacing: -0.03em;
}

h3 {
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: 1.25rem;
  color: var(--color-text-muted);
}

p:last-child {
  margin-bottom: 0;
}

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

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

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

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

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

.section {
  padding-top: var(--spacing-4xl);
  padding-bottom: var(--spacing-4xl);
  position: relative;
}

.section-sm {
  padding-top: var(--spacing-2xl);
  padding-bottom: var(--spacing-2xl);
}

.section-dark {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: #FFFFFF;
}

.section-dark p {
  color: var(--color-dark-text-muted);
}

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

/* Section Header Component */
.section-header {
  max-width: 760px;
  margin-bottom: 3.5rem;
}

.section-header.text-center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.825rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  background: var(--color-accent-light);
  padding: 0.4rem 0.95rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
  border: 1px solid rgba(37, 99, 235, 0.18);
}

.section-dark .section-tag {
  background: rgba(37, 99, 235, 0.18);
  color: #60A5FA;
  border-color: rgba(96, 165, 250, 0.3);
}

.section-title {
  margin-bottom: 1.1rem;
}

.section-subtitle {
  font-size: 1.125rem;
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-smooth);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.2;
}

.btn svg {
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(3px);
}

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

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -4px rgba(37, 99, 235, 0.45);
}

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

.btn-secondary:hover {
  background-color: var(--color-bg-light);
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

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

.btn-white:hover {
  background-color: #F1F5F9;
  color: var(--color-accent);
  transform: translateY(-2px);
}

.btn-outline-white {
  background-color: transparent;
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.28);
}

.btn-outline-white:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: #FFFFFF;
  color: #FFFFFF;
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1.05rem 2.2rem;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

.btn-sm {
  padding: 0.55rem 1.15rem;
  font-size: 0.85rem;
}

/* Grid Utilities */
.grid {
  display: grid;
  gap: 1.75rem;
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-12 { grid-template-columns: repeat(12, minmax(0, 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-sm { gap: 0.5rem; }
.gap-md { gap: 1rem; }
.gap-lg { gap: 1.5rem; }
.gap-xl { gap: 2rem; }

/* Responsive adjustments */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .section { padding-top: var(--spacing-3xl); padding-bottom: var(--spacing-3xl); }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding-top: 3.5rem; padding-bottom: 3.5rem; }
  .section-header { margin-bottom: 2.25rem; }
}