/* Tetin Brand Colors */
:root {
  --primary-blue: #0F6FF2;
  --primary-dark: #0A4AB8;
  --primary-light: #E8F1FF;
  --success-green: #10B981;
  --warning-orange: #F59E0B;
  --danger-red: #EF4444;
  --info-cyan: #06B6D4;
  --dark-gray: #1F2937;
  --medium-gray: #6B7280;
  --light-gray: #F3F4F6;
  --white: #FFFFFF;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

* {
  font-family: 'Inter', 'Segoe UI', sans-serif;
}

/* ========== GLOBAL STYLES ========== */

body {
  background-color: var(--light-gray);
  color: var(--dark-gray);
  line-height: 1.6;
}

a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* ========== HEADER & NAVIGATION ========== */

.tetin-navbar {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 1rem 0;
}

.tetin-navbar .navbar-brand {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tetin-navbar .navbar-brand svg {
  width: 48px;
  height: 48px;
}

.tetin-navbar .nav-link {
  color: var(--dark-gray);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  transition: all 0.2s ease;
}

.tetin-navbar .nav-link:hover {
  color: var(--primary-blue);
  background-color: var(--primary-light);
}

.tetin-navbar .nav-link.active {
  color: var(--primary-blue);
  background-color: var(--primary-light);
}

.tetin-navbar .btn-login {
  background-color: var(--primary-blue);
  color: var(--white);
  padding: 0.5rem 1.25rem;
  border-radius: 0.375rem;
  font-weight: 600;
  transition: background-color 0.2s ease;
}

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

/* ========== HERO SECTION ========== */

.hero-section {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-dark) 100%);
  color: var(--white);
  padding: 6rem 0;
  text-align: center;
}

.hero-section h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero-section p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.95;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-section .btn-primary {
  background-color: var(--white);
  color: var(--primary-blue);
  padding: 0.75rem 2rem;
  font-weight: 600;
  border-radius: 0.375rem;
  display: inline-block;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  margin: 0 0.5rem;
}

.hero-section .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background-color: var(--primary-light);
  color: var(--primary-dark);
}

.hero-section .btn-secondary {
  background-color: transparent;
  color: var(--white);
  padding: 0.75rem 2rem;
  font-weight: 600;
  border: 2px solid var(--white);
  border-radius: 0.375rem;
  display: inline-block;
  transition: all 0.2s ease;
}

.hero-section .btn-secondary:hover {
  background-color: var(--white);
  color: var(--primary-blue);
}

/* ========== FEATURE CARDS ========== */

.feature-card {
  background-color: var(--white);
  border-radius: 0.5rem;
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  text-align: center;
  border-top: 4px solid var(--primary-blue);
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.feature-card .icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--primary-blue);
}

.feature-card h3 {
  color: var(--dark-gray);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--medium-gray);
  font-size: 0.95rem;
}

/* ========== PRICING CARDS ========== */

.pricing-card {
  background-color: var(--white);
  border-radius: 0.5rem;
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--light-gray);
  transition: all 0.3s ease;
  text-align: center;
}

.pricing-card.featured {
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-lg);
  transform: scale(1.05);
  position: relative;
}

.pricing-card.featured::before {
  content: 'POPULAR';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--primary-blue);
  color: var(--white);
  padding: 0.25rem 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 9999px;
}

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

.pricing-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--dark-gray);
}

.pricing-card .price {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: 0.5rem;
}

.pricing-card .price span {
  font-size: 1rem;
  color: var(--medium-gray);
}

.pricing-card .price-period {
  color: var(--medium-gray);
  margin-bottom: 1.5rem;
}

.pricing-card ul {
  list-style: none;
  padding: 0;
  margin-bottom: 2rem;
  text-align: left;
}

.pricing-card ul li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--light-gray);
  color: var(--medium-gray);
}

.pricing-card ul li:last-child {
  border-bottom: none;
}

.pricing-card .btn {
  width: 100%;
  padding: 0.75rem;
  border-radius: 0.375rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.pricing-card .btn-primary {
  background-color: var(--primary-blue);
  color: var(--white);
}

.pricing-card .btn-primary:hover {
  background-color: var(--primary-dark);
}

.pricing-card .btn-outline {
  background-color: transparent;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
}

.pricing-card .btn-outline:hover {
  background-color: var(--primary-light);
}

/* ========== BUTTONS ========== */

.btn {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border-radius: 0.375rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  font-size: 0.95rem;
}

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

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

.btn-secondary {
  background-color: var(--light-gray);
  color: var(--dark-gray);
}

.btn-secondary:hover {
  background-color: #E5E7EB;
}

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

.btn-success:hover {
  background-color: #059669;
}

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

.btn-danger:hover {
  background-color: #DC2626;
}

.btn-outline-primary {
  background-color: transparent;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
}

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

/* ========== BADGES ========== */

.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-success {
  background-color: #D1FAE5;
  color: #065F46;
}

.badge-warning {
  background-color: #FEF3C7;
  color: #78350F;
}

.badge-danger {
  background-color: #FEE2E2;
  color: #991B1B;
}

.badge-info {
  background-color: var(--primary-light);
  color: var(--primary-dark);
}

/* ========== CARDS ========== */

.card {
  background-color: var(--white);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  background-color: var(--primary-light);
  color: var(--primary-dark);
  padding: 1rem;
  font-weight: 600;
  border-bottom: 2px solid var(--primary-blue);
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  background-color: var(--light-gray);
  padding: 1rem;
  border-top: 1px solid #E5E7EB;
}

/* ========== FORMS ========== */

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

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--dark-gray);
  font-size: 0.95rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #D1D5DB;
  border-radius: 0.375rem;
  font-size: 0.95rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(15, 111, 242, 0.1);
}

.form-select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #D1D5DB;
  border-radius: 0.375rem;
  font-size: 0.95rem;
  background-color: var(--white);
  cursor: pointer;
}

.form-select:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(15, 111, 242, 0.1);
}

/* ========== ALERTS ========== */

.alert {
  padding: 1rem;
  border-radius: 0.375rem;
  margin-bottom: 1rem;
  border-left: 4px solid;
}

.alert-success {
  background-color: #D1FAE5;
  color: #065F46;
  border-color: var(--success-green);
}

.alert-warning {
  background-color: #FEF3C7;
  color: #78350F;
  border-color: var(--warning-orange);
}

.alert-danger {
  background-color: #FEE2E2;
  color: #991B1B;
  border-color: var(--danger-red);
}

.alert-info {
  background-color: var(--primary-light);
  color: var(--primary-dark);
  border-color: var(--primary-blue);
}

/* ========== FOOTER ========== */

.tetin-footer {
  background-color: var(--dark-gray);
  color: #D1D5DB;
  padding: 3rem 0 1rem;
  margin-top: 4rem;
}

.tetin-footer h5 {
  color: var(--white);
  font-weight: 700;
  margin-bottom: 1rem;
}

.tetin-footer a {
  color: #D1D5DB;
  transition: color 0.2s ease;
}

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

.tetin-footer .footer-links {
  list-style: none;
  padding: 0;
}

.tetin-footer .footer-links li {
  margin-bottom: 0.5rem;
}

.tetin-footer .footer-bottom {
  border-top: 1px solid #4B5563;
  padding-top: 2rem;
  text-align: center;
  color: #9CA3AF;
}

/* ========== TABLES ========== */

.table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  border-radius: 0.5rem;
  overflow: hidden;
}

.table-responsive {
  overflow-x: auto;
  border-radius: 0.5rem;
}

.table thead {
  background-color: var(--primary-light);
  border-bottom: 2px solid var(--primary-blue);
}

.table thead th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--primary-dark);
}

.table tbody td {
  padding: 1rem;
  border-bottom: 1px solid var(--light-gray);
}

.table tbody tr:hover {
  background-color: var(--primary-light);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

/* ========== RESPONSIVE ========== */

@media (max-width: 768px) {
  .hero-section h1 {
    font-size: 2rem;
  }

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

  .pricing-card.featured {
    transform: scale(1);
    margin-bottom: 2rem;
  }

  .tetin-navbar .navbar-brand {
    font-size: 1.25rem;
  }

  .feature-card {
    margin-bottom: 2rem;
  }
}

/* ========== UTILITY CLASSES ========== */

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

.text-success {
  color: var(--success-green);
}

.text-danger {
  color: var(--danger-red);
}

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

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

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

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

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

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

.rounded {
  border-radius: 0.375rem;
}

.rounded-lg {
  border-radius: 0.5rem;
}

.gap-2 {
  gap: 0.5rem;
}

.gap-3 {
  gap: 1rem;
}

.mb-3 {
  margin-bottom: 1rem;
}

.mb-4 {
  margin-bottom: 1.5rem;
}

.mt-4 {
  margin-top: 1.5rem;
}

.py-4 {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

.text-center {
  text-align: center;
}