/* ============================================
   PROFESSIONAL MADHU CLOUD ACADEMY STYLES
   ============================================ */

:root {
  --primary: #0369a1;
  --primary-dark: #0284c7;
  --primary-light: #06b6d4;
  --secondary: #1e40af;
  --success: #059669;
  --danger: #dc2626;
  --warning: #d97706;
  --info: #0891b2;
  --light: #f1f5f9;
  --dark: #0f172a;
  --text: #1e293b;
  --text-light: #64748b;
  --border: #cbd5e1;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Styles */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background-color: #ffffff;
  margin: 0;
  padding: 0;
  transition: var(--transition);
}

body.dark-mode {
  background-color: #0f172a;
  color: #e2e8f0;
}

body.dark-mode .navbar {
  background-color: #1e293b !important;
  border-bottom: 1px solid #334155;
}

body.dark-mode .card {
  background-color: #1e293b;
  border-color: #334155;
  color: #e2e8f0;
}

body.dark-mode .card:hover {
  background-color: #334155;
}

body.dark-mode .form-control,
body.dark-mode .form-select {
  background-color: #334155;
  color: #e2e8f0;
  border-color: #475569;
}

body.dark-mode .btn-outline-primary {
  color: var(--primary-light);
  border-color: var(--primary-light);
}

body.dark-mode .btn-outline-primary:hover {
  background-color: var(--primary-light);
  border-color: var(--primary-light);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1rem;
  transition: var(--transition);
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3,
body.dark-mode h4,
body.dark-mode h5,
body.dark-mode h6 {
  color: #f1f5f9;
}

h1 {
  font-size: 2.5rem;
  line-height: 1.2;
}

h2 {
  font-size: 2rem;
  line-height: 1.3;
}

h3 {
  font-size: 1.5rem;
}

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

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

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

/* Navbar */
.navbar {
  background-color: #ffffff;
  border-bottom: 2px solid var(--light);
  padding: 1rem 0;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary) !important;
  transition: var(--transition);
}

.navbar-brand:hover {
  color: var(--primary-dark) !important;
  transform: translateX(-2px);
}

.nav-link {
  color: var(--text) !important;
  font-weight: 500;
  margin: 0 0.5rem;
  transition: var(--transition);
  position: relative;
  padding-bottom: 0.5rem !important;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 50%;
  background-color: var(--primary);
  transition: var(--transition);
  transform: translateX(-50%);
}

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

.nav-link:hover {
  color: var(--primary) !important;
}

.dark-mode-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--text);
  transition: var(--transition);
}

.dark-mode-toggle:hover {
  color: var(--primary);
  transform: rotate(20deg);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  color: white;
  margin-bottom: 1.5rem;
  animation: slideInDown 0.8s ease-out;
}

.hero p {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  animation: slideInUp 0.8s ease-out 0.2s both;
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  transition: var(--transition);
  border: 2px solid transparent;
  cursor: pointer;
  display: inline-block;
  text-align: center;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  color: white;
}

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

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

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

.btn-secondary:hover {
  background-color: #1e3a8a;
  border-color: #1e3a8a;
  color: white;
}

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

.btn-success:hover {
  background-color: #047857;
  border-color: #047857;
  color: white;
}

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

.btn-danger:hover {
  background-color: #b91c1c;
  border-color: #b91c1c;
  color: white;
}

/* Cards */
.card {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  background-color: #ffffff;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.card-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  font-weight: 600;
  border: none;
  padding: 1.5rem;
}

.card-body {
  padding: 1.5rem;
}

.card-title {
  color: var(--dark);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.card-text {
  color: var(--text-light);
  margin-bottom: 1rem;
}

.card-img-top {
  height: 250px;
  object-fit: cover;
  transition: var(--transition);
}

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

/* Forms */
.form-control,
.form-select {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  transition: var(--transition);
  background-color: #ffffff;
  color: var(--text);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(3, 105, 161, 0.1);
}

.form-label {
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

/* Input Group */
.input-group {
  border-radius: 8px;
  overflow: hidden;
}

.input-group-text {
  background-color: var(--light);
  border-color: var(--border);
  color: var(--text);
}

/* Badges */
.badge {
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.85rem;
  transition: var(--transition);
}

.badge-primary {
  background-color: var(--primary);
  color: white;
}

.badge-success {
  background-color: var(--success);
  color: white;
}

.badge-warning {
  background-color: var(--warning);
  color: white;
}

.badge-danger {
  background-color: var(--danger);
  color: white;
}

/* Pagination */
.pagination {
  gap: 0.5rem;
}

.page-link {
  color: var(--primary);
  border-color: var(--border);
  border-radius: 6px;
  transition: var(--transition);
}

.page-link:hover {
  color: white;
  background-color: var(--primary);
  border-color: var(--primary);
}

.page-item.active .page-link {
  background-color: var(--primary);
  border-color: var(--primary);
}

/* Alerts */
.alert {
  border-radius: 8px;
  border: none;
  padding: 1rem 1.5rem;
  animation: slideInDown 0.5s ease-out;
}

.alert-success {
  background-color: #dcfce7;
  color: #166534;
}

.alert-danger {
  background-color: #fee2e2;
  color: #991b1b;
}

.alert-warning {
  background-color: #fef3c7;
  color: #92400e;
}

.alert-info {
  background-color: #cffafe;
  color: #164e63;
}

/* Modals */
.modal-content {
  border-radius: 12px;
  border: 1px solid var(--border);
}

.modal-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  border: none;
}

.modal-header .btn-close {
  filter: brightness(0) invert(1);
}

/* Dropdown */
.dropdown-menu {
  border-radius: 8px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  animation: slideInDown 0.3s ease-out;
}

.dropdown-item {
  transition: var(--transition);
}

.dropdown-item:hover {
  background-color: var(--light);
  color: var(--primary);
}

.dropdown-divider {
  background-color: var(--border);
}

/* Footer */
footer {
  background-color: var(--dark);
  color: white;
  padding: 3rem 0 1rem;
  margin-top: 4rem;
  border-top: 2px solid var(--primary);
}

footer h5 {
  color: var(--primary-light);
  font-weight: 700;
  margin-bottom: 1.5rem;
}

footer a {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}

footer a:hover {
  color: var(--primary-light);
  text-decoration: none;
}

footer p {
  color: rgba(255, 255, 255, 0.7);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  margin-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

/* Social Links */
.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: white;
  margin-right: 0.5rem;
  transition: var(--transition);
}

.social-links a:hover {
  background-color: var(--primary);
  transform: translateY(-3px);
  text-decoration: none;
}

/* Animations */
@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.fade-in {
  animation: fadeIn 0.5s ease-out;
}

.pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Sections */
.section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--light);
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  margin: 1rem auto 0;
  border-radius: 2px;
}

.section-title h2 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.section-title p {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 0;
}

/* Grid */
.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.text-primary {
  color: var(--primary);
}

.text-muted {
  color: var(--text-light);
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

.rounded-lg {
  border-radius: 12px;
}

.shadow {
  box-shadow: var(--shadow);
}

.shadow-lg {
  box-shadow: var(--shadow-lg);
}

/* Responsive */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .hero {
    padding: 40px 0;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .section {
    padding: 2rem 0;
  }

  .grid-auto,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .nav-link {
    margin: 0.25rem 0;
  }
}

/* Print Styles */
@media print {
  .navbar,
  footer,
  .btn {
    display: none;
  }
}