/*
 * ATNAA Technologies - Corporate Design System & Stylesheet
 * Microsoft-Partner Premium Style Corporate Branding
 */

/* ==========================================================================
   1. Design System & CSS Variables
   ========================================================================== */
:root {
  /* Common Brand Colors */
  --ms-blue: #0078d4;
  --ms-blue-hover: #005a9e;
  --teal-accent: #00f3ff;
  --success: #107c41;
  --warning: #ffb900;
  --error: #d83b01;

  /* Fonts */
  --font-heading: 'Outfit', 'Inter', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  /* Layout Spacing & Radius */
  --container-width: 1200px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* LIGHT THEME (Default) */
  --bg-primary: #f9fafb;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f3f4f6;
  --bg-glass: rgba(255, 255, 255, 0.75);
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --border: #e5e7eb;
  --primary: var(--ms-blue);
  --primary-hover: var(--ms-blue-hover);
  --accent: #0086f0;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 40px rgba(0, 120, 212, 0.08);
  --hero-overlay: linear-gradient(135deg, rgba(249, 250, 251, 0.92) 0%, rgba(255, 255, 255, 0.8) 100%);
  --accent-glow: rgba(0, 120, 212, 0.15);
  --hero-bg: url('../images/hero-bg-light.png');
}

[data-theme="dark"] {
  /* DARK THEME */
  --bg-primary: #0a0f1d;
  --bg-secondary: #131a30;
  --bg-tertiary: #19223c;
  --bg-glass: rgba(10, 15, 29, 0.8);
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --border: #222f54;
  --primary: var(--ms-blue);
  --primary-hover: #0091ff;
  --accent: var(--teal-accent);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 40px rgba(0, 243, 255, 0.08);
  --hero-overlay: linear-gradient(135deg, rgba(10, 15, 29, 0.94) 0%, rgba(19, 26, 48, 0.85) 100%);
  --accent-glow: rgba(0, 243, 255, 0.25);
  --hero-bg: url('../images/hero-bg-dark.png');
}

/* ==========================================================================
   2. Reset & Global Styles
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  transition: background-color 0.5s ease, color 0.3s ease;
  overflow-x: hidden;
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   3. Typography & Utilities
   ========================================================================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-gradient {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.section-padding {
  padding: 6rem 0;
}
.section-header {
  max-width: 700px;
  margin: 0 auto 4rem auto;
  text-align: center;
}
.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.section-header p {
  color: var(--text-secondary);
  font-size: 1.125rem;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulseGlow {
  0% { box-shadow: 0 0 5px var(--accent-glow); }
  50% { box-shadow: 0 0 20px var(--accent-glow); }
  100% { box-shadow: 0 0 5px var(--accent-glow); }
}

.animate-fade-in {
  animation: fadeIn 0.8s ease forwards;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   4. Header & Navigation (Glassmorphic)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
  padding: 0.5rem 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  transition: var(--transition);
}

.site-header.scrolled .nav-container {
  height: 65px;
}

.logo-wrapper {
  display: flex;
  align-items: center;
  width: 250px;
  height: 72px;
  color: var(--text-primary);
  transition: var(--transition);
}

.site-header.scrolled .logo-wrapper {
  height: 80px;
  width: 315px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
}

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

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

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Theme Toggle Button */
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.theme-toggle:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--primary);
  color: var(--primary);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

[data-theme="dark"] .theme-toggle .sun-icon { display: block; }
[data-theme="dark"] .theme-toggle .moon-icon { display: none; }
.theme-toggle .sun-icon { display: none; }
.theme-toggle .moon-icon { display: block; }

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-primary);
  padding: 0.5rem;
}

.menu-toggle svg {
  width: 28px;
  height: 28px;
}

/* ==========================================================================
   5. Buttons (Interactive & Premium)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.8rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  gap: 0.5rem;
  border: none;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 120, 212, 0.3);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 120, 212, 0.4);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

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

.btn-accent {
  background-color: var(--bg-secondary);
  color: var(--primary);
  border: 1px solid var(--primary);
}

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

.btn-sm {
  padding: 0.5rem 1.2rem;
  font-size: 0.85rem;
}

/* ==========================================================================
   6. Hero & Banners
   ========================================================================== */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  background-image: var(--hero-bg);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transition: background-image 0.5s ease;
}

.hero-overlay-div {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--hero-overlay);
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 750px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--border);
  color: var(--primary);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border);
}

.badge svg {
  width: 14px;
  height: 14px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 1.5rem;
  line-height: 1.15;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

.hero-tagline {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-banner {
  padding: 8rem 0 4rem 0;
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  right: -10%;
  top: -20%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  z-index: 0;
}

.page-banner .container {
  position: relative;
  z-index: 1;
}

.page-banner h1 {
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

.breadcrumb {
  display: flex;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.breadcrumb a {
  color: var(--text-secondary);
}

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

/* ==========================================================================
   7. Infographics & Layout Components
   ========================================================================== */
/* Grid Systems */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

/* Stats Infographic */
.stats-bar {
  display: flex;
  justify-content: space-around;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  margin-top: -4rem;
  position: relative;
  z-index: 10;
  text-align: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.stat-item {
  flex: 1;
  min-width: 180px;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 0.25rem;
  display: block;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Features / Cards */
.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background-color: var(--primary);
  transition: var(--transition);
}

.card:hover::before {
  height: 100%;
}

.card-icon {
  background-color: var(--bg-tertiary);
  color: var(--primary);
  width: 60px;
  height: 60px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

.card:hover .card-icon {
  background-color: var(--primary);
  color: #ffffff;
  transform: rotate(5deg) scale(1.05);
}

.card-title {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.card-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  font-weight: 600;
  font-size: 0.9rem;
}

.card-link svg {
  width: 16px;
  height: 16px;
  transition: var(--transition);
}

.card-link:hover svg {
  transform: translateX(4px);
}

/* Interactive Tabs Component */
.tab-nav {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1rem;
  flex-wrap: wrap;
}

.tab-btn {
  background: none;
  border: none;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-secondary);
  cursor: pointer;
  position: relative;
  transition: var(--transition);
}

.tab-btn:hover {
  color: var(--primary);
}

.tab-btn.active {
  color: var(--primary);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -17px;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--primary);
}

.tab-pane {
  display: none;
  animation: fadeIn 0.5s ease forwards;
}

.tab-pane.active {
  display: block;
}

/* Modern Timeline Infographic */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--border);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 1.5rem 3rem;
  box-sizing: border-box;
}

.timeline-item::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  border: 4px solid var(--primary);
  top: 2rem;
  right: -8px;
  z-index: 1;
}

.timeline-item.left { left: 0; text-align: right; }
.timeline-item.right { left: 50%; }

.timeline-item.right::after {
  left: -8px;
}

.timeline-year {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 0.5rem;
  display: block;
}

.timeline-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   8. Specific Page Layouts
   ========================================================================== */
/* Tech Stack Filter List */
.tech-filter-bar {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.tech-filter-btn {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0.6rem 1.2rem;
  border-radius: 30px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
}

.tech-filter-btn:hover, .tech-filter-btn.active {
  background-color: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1.5rem;
}

.tech-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: default;
}

.tech-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.tech-logo {
  font-size: 2.25rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
  display: block;
}

.tech-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
}

/* Jobs Board (Careers) */
.jobs-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.job-row {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  flex-wrap: wrap;
  gap: 1.5rem;
}

.job-row:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.job-info h3 {
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.job-meta {
  display: flex;
  gap: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  flex-wrap: wrap;
}

.job-meta-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.job-meta-item svg {
  width: 14px;
  height: 14px;
}

/* Blog Feed & Detail */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.blog-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.blog-thumb {
  height: 200px;
  background-color: var(--bg-tertiary);
  overflow: hidden;
  position: relative;
}

.blog-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.blog-card:hover .blog-thumb img {
  transform: scale(1.05);
}

.blog-cat {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background-color: var(--primary);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border-radius: 30px;
}

.blog-body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.blog-meta-top {
  display: flex;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.blog-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.blog-excerpt {
  color: var(--text-secondary);
  font-size: 0.925rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

/* Blog details formatting */
.blog-post-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

.blog-post-header {
  text-align: center;
  margin-bottom: 3rem;
}

.blog-post-header h1 {
  font-size: 3rem;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.blog-post-meta {
  display: flex;
  justify-content: center;
  gap: 2rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.blog-post-hero {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 3rem;
  box-shadow: var(--shadow-md);
}

.blog-post-content {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.blog-post-content h3, .blog-post-content h4 {
  color: var(--text-primary);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.blog-post-content p {
  margin-bottom: 1.5rem;
}

.blog-post-content ul, .blog-post-content ol {
  margin-bottom: 1.5rem;
  padding-left: 2rem;
}

.blog-post-content li {
  margin-bottom: 0.5rem;
}

.blog-post-content blockquote {
  border-left: 4px solid var(--primary);
  padding-left: 1.5rem;
  font-style: italic;
  margin: 2rem 0;
  color: var(--text-primary);
}

/* ==========================================================================
   9. Forms, Modals & User Input
   ========================================================================== */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  background-color: var(--bg-secondary);
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

/* File Upload Component */
.file-upload-wrapper {
  position: relative;
  border: 2px dashed var(--border);
  padding: 2rem;
  text-align: center;
  border-radius: var(--radius-md);
  background-color: var(--bg-tertiary);
  cursor: pointer;
  transition: var(--transition);
}

.file-upload-wrapper:hover {
  border-color: var(--primary);
  background-color: var(--bg-secondary);
}

.file-upload-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.file-upload-msg {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.file-upload-msg svg {
  width: 32px;
  height: 32px;
  color: var(--primary);
  margin: 0 auto 0.75rem auto;
}

/* Form Submit Response Messages */
.form-alert {
  padding: 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  display: none;
  animation: fadeIn 0.4s ease forwards;
}

.form-alert-success {
  background-color: rgba(16, 124, 65, 0.15);
  border: 1px solid var(--success);
  color: var(--success);
}

.form-alert-error {
  background-color: rgba(216, 59, 1, 0.15);
  border: 1px solid var(--error);
  color: var(--error);
}

/* ==========================================================================
   10. Footer Section
   ========================================================================== */
.site-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 5rem 0 2rem 0;
  font-size: 0.95rem;
}

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

.footer-col h4 {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-col p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.footer-logo {
  width: 240px;
  height: 65px;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--text-secondary);
}

.footer-links a:hover {
  color: var(--primary);
  transform: translateX(4px);
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-info-item {
  display: flex;
  gap: 0.75rem;
  color: var(--text-secondary);
}

.contact-info-item svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
  flex-shrink: 0;
}

/* Newsletter Input */
.newsletter-form {
  display: flex;
  gap: 0.5rem;
}

.newsletter-form .form-control {
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.newsletter-form .btn {
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 0 1.25rem;
}

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

.social-links {
  display: flex;
  gap: 1rem;
}

.social-link {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.social-link:hover {
  background-color: var(--primary);
  color: #ffffff;
  transform: translateY(-2px);
}

.social-link svg {
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   11. Media Queries (Responsive Styling)
   ========================================================================== */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  html { font-size: 15px; }

  /* Mobile Navbar */
  .menu-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    flex-direction: column;
    padding: 3rem 1.5rem;
    gap: 2rem;
    transform: translateX(100%);
    transition: transform 0.4s ease;
    align-items: flex-start;
    box-shadow: var(--shadow-md);
  }

  .nav-menu.active {
    transform: translateX(0);
  }

  .site-header.scrolled .nav-menu {
    top: 65px;
    height: calc(100vh - 65px);
  }

  .nav-link {
    font-size: 1.15rem;
    width: 100%;
  }

  /* Grid Stacked Layouts */
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero {
    padding-top: 120px;
    text-align: center;
  }

  .hero-title {
    font-size: 2.5rem;
  }

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

  .stats-bar {
    margin-top: 2rem;
    padding: 1.5rem;
  }

  .timeline::before {
    left: 2rem;
  }

  .timeline-item {
    width: 100%;
    padding: 1.5rem 0 1.5rem 4rem;
  }

  .timeline-item::after {
    left: 2rem;
    right: auto;
    transform: translateX(-50%);
  }

  .timeline-item.left {
    left: 0;
    text-align: left;
  }

  .timeline-item.right {
    left: 0;
  }

  .job-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .job-row .btn {
    width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
}