/* ==========================================================================
   Durga Tech Solutions - Premium Dark Theme Stylesheet
   ========================================================================== */

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

:root {
  /* Core Colors based on Logo */
  --color-primary: #C00000; /* Deep red extracted directly from logo */
  --color-primary-light: #D91A1A; /* Lighter shade */
  --color-primary-dark: #990000; /* Darker shade */
  --color-accent: #DF970D; /* Orange/Gold extracted from logo */
  --color-accent-light: #F3C766;
  
  /* Light Theme Palette */
  --bg-base: #FFFFFF; /* Crisp white */
  --bg-surface: #F8F9FA; /* Light grey */
  --bg-surface-elevated: #FFFFFF;
  
  /* Text Colors */
  --text-main: #12161E; /* Dark text */
  --text-muted: #4A5568; /* Grey text */
  
  /* UI Elements */
  --border-color: rgba(0, 0, 0, 0.08);
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-border: rgba(0, 0, 0, 0.05);
  
  /* Gradients */
  --gradient-gold: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-dark) 100%);
  --gradient-dark: linear-gradient(180deg, var(--bg-surface) 0%, #FFFFFF 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.4) 0%, rgba(255, 255, 255, 0.1) 100%);
  
  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Spacing */
  --section-padding: 100px 24px;
  --container-width: 1280px;
  
  /* Shadows & Effects */
  --shadow-glow-gold: 0 0 20px rgba(212, 175, 55, 0.15);
  --shadow-glow-red: 0 0 20px rgba(196, 30, 58, 0.15);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --transition-smooth: 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-base);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(212, 175, 55, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 85% 30%, rgba(196, 30, 58, 0.05) 0%, transparent 50%);
}

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

ul {
  list-style: none;
}

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

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(3rem, 5vw, 4.5rem);
  letter-spacing: -1px;
}

h2 {
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  letter-spacing: -0.5px;
}

h3 {
  font-size: 1.75rem;
}

p {
  color: var(--text-muted);
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
}

.text-gradient {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
  display: inline-block;
}

.eyebrow {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-primary);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.eyebrow::before {
  content: '';
  display: block;
  width: 30px;
  height: 2px;
  background-color: var(--color-accent);
}

/* ==========================================================================
   Layout & Containers
   ========================================================================== */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--section-padding);
}

.grid {
  display: grid;
  gap: 2rem;
}

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

@media (max-width: 992px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ==========================================================================
   UI Components
   ========================================================================== */
/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary {
  background: var(--gradient-gold);
  color: #000;
  border: none;
  box-shadow: var(--shadow-glow-gold);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(212, 175, 55, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
}

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

/* Glass Cards */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 2.5rem;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--gradient-glass);
  pointer-events: none;
  z-index: 0;
}

.glass-card > * {
  position: relative;
  z-index: 1;
}

.glass-card:hover {
  transform: translateY(-5px);
  border-color: rgba(212, 175, 55, 0.3);
  box-shadow: var(--shadow-glow-gold);
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem 0;
  z-index: 1000;
  transition: all var(--transition-smooth);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo img {
  max-height: 80px;
  width: auto;
  transition: transform var(--transition-smooth);
}

.logo:hover img {
  transform: scale(1.05);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-links a {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1rem;
  color: var(--text-muted);
  position: relative;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--color-primary);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-smooth);
}

.nav-links a:hover::after, .nav-links a.active::after {
  width: 100%;
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 1001;
}

@media (max-width: 992px) {
  .mobile-toggle { display: block; }
  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: 300px;
    height: 100vh;
    background: var(--bg-surface);
    flex-direction: column;
    justify-content: center;
    padding: 2rem;
    transition: right var(--transition-smooth);
    border-left: 1px solid var(--border-color);
  }
  .nav-links.open { right: 0; }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 100px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(212,175,55,0.15) 0%, rgba(255,255,255,0) 70%);
  z-index: 0;
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-content .eyebrow {
  justify-content: center;
}

.hero-content .eyebrow::before, .hero-content .eyebrow::after {
  content: '';
  display: block;
  width: 30px;
  height: 2px;
  background-color: var(--color-accent);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 2.5rem;
}

/* ==========================================================================
   Page Headers (Internal Pages)
   ========================================================================== */
.page-header {
  padding: 180px 24px 100px;
  text-align: center;
  background: var(--gradient-dark);
  position: relative;
  border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
  margin-bottom: 1rem;
}

.page-header p {
  max-width: 700px;
  margin: 0 auto;
  font-size: 1.25rem;
}

/* ==========================================================================
   Features / Services Grids
   ========================================================================== */
.service-icon {
  width: 60px;
  height: 60px;
  background: rgba(212, 175, 55, 0.1);
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  transition: var(--transition-smooth);
}

.glass-card:hover .service-icon {
  background: var(--color-primary);
  color: #000;
  transform: scale(1.1) rotate(5deg);
}

.service-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.service-list li i {
  color: var(--color-accent);
}

.service-list li:last-child {
  border-bottom: none;
}

/* ==========================================================================
   Contact Form & Info
   ========================================================================== */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 500;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 1rem 1.25rem;
  background: rgba(255,255,255,1);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition-smooth);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.1);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

.contact-info-item {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.contact-info-icon {
  width: 50px;
  height: 50px;
  flex-shrink: 0;
  background: rgba(196, 30, 58, 0.1);
  color: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: #F8F9FA;
  padding: 5rem 24px 2rem;
  border-top: 1px solid var(--border-color);
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-brand img {
  margin-bottom: 1.5rem;
  height: 80px;
}

.footer-brand p {
  margin-top: 1.5rem;
  max-width: 300px;
}

.footer-heading {
  color: var(--text-main);
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-links a::before {
  content: '\f105';
  font-family: 'FontAwesome';
  font-size: 0.75rem;
  color: var(--color-primary);
  transition: transform var(--transition-smooth);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-links a:hover::before {
  transform: translateX(3px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-legal a {
  margin-left: 1rem;
  color: var(--text-muted);
}

.footer-legal a:hover {
  color: var(--color-primary);
}

@media (max-width: 992px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}

@media (max-width: 576px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Animations
   ========================================================================== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }

/* Legal Content formatting */
.legal-content h2 { margin-top: 3rem; font-size: 1.75rem; }
.legal-content h3 { margin-top: 2rem; font-size: 1.25rem; }
.legal-content ul { list-style: disc; margin-left: 1.5rem; margin-bottom: 1.5rem; color: var(--text-muted); }
.legal-content li { margin-bottom: 0.5rem; }

/* ==========================================================================
   Interactive Solution Finder
   ========================================================================== */
.solution-finder {
  background: var(--bg-surface-elevated);
  border-radius: 24px;
  padding: 3rem;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-color);
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.solution-step {
  display: none;
  animation: fadeIn 0.5s ease forwards;
}

.solution-step.active {
  display: block;
}

.solution-step h3 {
  font-size: 2rem;
  margin-bottom: 2rem;
  text-align: center;
}

.solution-options {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.solution-option {
  padding: 1.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-main);
}

.solution-option i {
  font-size: 1.5rem;
  color: var(--color-primary);
  width: 30px;
  text-align: center;
}

.solution-option:hover {
  border-color: var(--color-primary);
  background: rgba(212, 175, 55, 0.05);
  transform: translateX(10px);
}

.solution-result {
  text-align: center;
  padding: 2rem 0;
}

.solution-result i {
  font-size: 4rem;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Service Detail Pages */
.service-detail-header {
  padding: 150px 24px 80px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
}

.service-feature-list {
  list-style: none;
  margin-top: 2rem;
}

.service-feature-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 1rem;
  font-weight: 500;
}

.service-feature-list li i {
  color: var(--color-primary);
}

/* ==========================================================================
   Blog Modal Popup Styles
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(5px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-base);
  width: 90%;
  max-width: 800px;
  max-height: 90vh;
  border-radius: 16px;
  overflow-y: auto;
  position: relative;
  transform: translateY(20px);
  transition: all 0.3s ease;
  box-shadow: 0 25px 50px rgba(0,0,0,0.15);
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: background 0.3s ease;
}

.modal-close:hover {
  background: var(--color-primary);
}

.modal-header img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  border-radius: 16px 16px 0 0;
}

.modal-body {
  padding: 0 3rem 4rem 3rem;
}

.article-content p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  color: var(--text-main);
}

.article-content h4 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text-main);
}

.article-content strong {
  color: var(--color-primary);
}

@media (max-width: 768px) {
  .modal-body {
    padding: 0 1.5rem 2rem 1.5rem;
  }
  .modal-header img {
    height: 250px;
  }
}