/**
 * Stafferin Common Styles
 * Shared across all pages for consistent branding
 */

/* ==================== CSS VARIABLES ==================== */
:root {
  --primary: #5B9BD5;
  --primary-dark: #4A8BC4;
  --primary-light: #7BB3E0;
  --secondary: #6ECFB8;
  --secondary-light: #8EDECE;
  --accent: #F5A962;
  --accent-light: #F7BC82;
  --dark: #4A5568;
  --dark-light: #5A6B7B;
  --gray-50: #FAFBFD;
  --gray-100: #F4F6F9;
  --gray-200: #E8ECF1;
  --gray-300: #D1D9E2;
  --gray-400: #A0AEC0;
  --gray-500: #718096;
  --gray-600: #5A6778;
  --white: #FFFFFF;
  --danger: #E57373;
  --success: #81C784;
}

/* ==================== BASE RESET ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  color: var(--dark);
  background: var(--white);
  overflow-x: hidden;
  line-height: 1.6;
}

/* ==================== NAVBAR ==================== */
.navbar {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
  padding: 0.75rem 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1050;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary) !important;
  letter-spacing: -0.5px;
}

.navbar-nav .nav-link {
  color: var(--dark) !important;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 1rem !important;
  margin: 0 0.15rem;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.navbar-nav .nav-link:hover {
  color: var(--primary) !important;
  background: var(--gray-100);
}

.navbar-nav .nav-link.active {
  color: var(--primary) !important;
  background: rgba(91, 155, 213, 0.08);
}

.btn-nav {
  background: var(--primary);
  color: var(--white) !important;
  font-weight: 600;
  padding: 0.5rem 1.25rem !important;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.btn-nav:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.navbar-toggler {
  border: none;
  padding: 0.5rem;
}

.navbar-toggler:focus {
  box-shadow: none;
}

/* ==================== FOOTER ==================== */
.footer {
  background: var(--dark);
  padding: 5rem 0 2rem;
  color: var(--gray-300);
}

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

.footer-brand .logo {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--white);
  text-decoration: none;
  display: inline-block;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.95rem;
  color: var(--gray-400);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.footer-social {
  display: flex;
  gap: 0.75rem;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1rem;
  transition: all 0.3s ease;
}

.footer-social a:hover {
  background: var(--primary);
  transform: translateY(-2px);
}

.footer-column h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1.25rem;
}

.footer-column ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.footer-column ul li a {
  color: var(--gray-400);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-column ul li a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: var(--gray-500);
  margin: 0;
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

.footer-bottom-links a {
  color: var(--gray-500);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* ==================== HERO SECTIONS ==================== */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, rgba(91, 155, 213, 0.1), rgba(110, 207, 184, 0.1));
  color: var(--primary);
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-badge i {
  font-size: 1rem;
}

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

.hero-title span {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--gray-500);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

/* ==================== SECTION HEADERS ==================== */
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 0.75rem;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--gray-500);
}

/* ==================== BUTTONS ==================== */
.btn-primary-custom {
  background: var(--primary);
  color: var(--white);
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary-custom:hover {
  background: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-secondary-custom {
  background: var(--white);
  color: var(--dark);
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

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

/* ==================== CARDS ==================== */
.card-custom {
  background: var(--white);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
}

.card-custom:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.12);
  border-color: transparent;
}

/* ==================== NEWSLETTER SECTION ==================== */
.newsletter-section {
  padding: 5rem 0;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
  position: relative;
  overflow: hidden;
}

.newsletter-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(91, 155, 213, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.newsletter-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.newsletter-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

.newsletter-subtitle {
  font-size: 1.1rem;
  color: var(--gray-400);
  margin-bottom: 2rem;
}

.newsletter-form {
  display: flex;
  gap: 0.75rem;
  max-width: 480px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: 1rem 1.25rem;
  border: 2px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  color: var(--white);
  font-size: 1rem;
  transition: all 0.2s ease;
}

.newsletter-form input::placeholder {
  color: var(--gray-500);
}

.newsletter-form input:focus {
  outline: none;
  border-color: var(--primary);
  background: rgba(255,255,255,0.1);
}

.newsletter-form button {
  background: var(--primary);
  color: var(--white);
  padding: 1rem 1.75rem;
  border: none;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.newsletter-form button:hover {
  background: var(--primary-dark);
}

/* ==================== BACK TO TOP ==================== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: var(--primary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(91, 155, 213, 0.3);
  z-index: 1000;
  border: none;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-4px);
}

/* ==================== SEARCH BOX ==================== */
.search-container {
  max-width: 600px;
  margin: 0 auto;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: 16px;
  padding: 0.5rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 4px 25px rgba(91, 155, 213, 0.15);
}

.search-box .search-icon {
  padding: 0 1rem;
  color: var(--gray-400);
  font-size: 1.25rem;
}

.search-box input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 1rem;
  color: var(--dark);
  background: transparent;
  padding: 0.75rem 0;
}

.search-box input::placeholder {
  color: var(--gray-400);
}

.search-box .search-btn {
  background: var(--primary);
  color: var(--white);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

/* ==================== CATEGORY TABS ==================== */
.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-bottom: 1rem;
}

.category-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border: 2px solid var(--gray-200);
  border-radius: 50px;
  background: var(--white);
  color: var(--gray-600);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.category-tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

.category-tab i {
  font-size: 1rem;
}

/* ==================== BLOG CARDS ==================== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.blog-card {
  background: var(--white);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.12);
  border-color: transparent;
}

.blog-card:hover .card-image i {
  transform: scale(1.1);
}

.card-image {
  position: relative;
  height: 200px;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.card-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="3" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="70" r="2.5" fill="rgba(255,255,255,0.1)"/><circle cx="70" cy="80" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
}

.card-image i {
  font-size: 3rem;
  color: rgba(255,255,255,0.4);
  transition: transform 0.3s ease;
}

.card-category {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--white);
  color: var(--primary);
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.card-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.4;
  margin-bottom: 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-excerpt {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--gray-100);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--gray-400);
  font-size: 0.85rem;
}

.card-arrow {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  transition: all 0.2s ease;
}

.blog-card:hover .card-arrow {
  background: var(--primary);
  color: var(--white);
  transform: translateX(4px);
}

/* ==================== FEATURED CARD ==================== */
.featured-card {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  background: linear-gradient(135deg, var(--gray-50), var(--white));
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
  cursor: pointer;
}

.featured-card:hover {
  box-shadow: 0 20px 50px rgba(0,0,0,0.1);
  transform: translateY(-4px);
}

.featured-image {
  position: relative;
  min-height: 400px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.featured-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
}

.featured-image i {
  font-size: 5rem;
  color: rgba(255,255,255,0.3);
}

.featured-badge {
  position: absolute;
  top: 1.5rem;
  left: 1.5rem;
  background: var(--white);
  color: var(--primary);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.featured-content {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.featured-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.featured-category {
  background: rgba(91, 155, 213, 0.1);
  color: var(--primary);
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
}

.featured-date {
  color: var(--gray-500);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.featured-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.3;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

.featured-excerpt {
  font-size: 1.05rem;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.featured-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.read-time {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--gray-500);
  font-size: 0.9rem;
}

.read-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--primary);
  color: var(--white);
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.read-more-btn:hover {
  background: var(--primary-dark);
  color: var(--white);
  transform: translateX(4px);
}

/* ==================== LOAD MORE ==================== */
.load-more-section {
  text-align: center;
  margin-top: 3rem;
}

.load-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--white);
  color: var(--dark);
  padding: 1rem 2rem;
  border: 2px solid var(--gray-200);
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.load-more-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.load-more-btn i {
  font-size: 1.25rem;
}

/* ==================== ANIMATIONS ==================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ==================== UTILITY CLASSES ==================== */
.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-gradient-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.bg-gradient-secondary {
  background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
}

.bg-gradient-dark {
  background: linear-gradient(135deg, var(--dark), var(--dark-light));
}

.shadow-soft {
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.shadow-medium {
  box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.shadow-strong {
  box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1200px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 992px) {
  .hero-title {
    font-size: 2.75rem;
  }

  .featured-card {
    grid-template-columns: 1fr;
  }

  .featured-image {
    min-height: 280px;
  }

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

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.25rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .blog-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .featured-content {
    padding: 2rem;
  }

  .featured-title {
    font-size: 1.5rem;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .footer-social {
    justify-content: center;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .section-title {
    font-size: 1.75rem;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 1.85rem;
  }

  .category-tabs {
    gap: 0.5rem;
  }

  .category-tab {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
  }

  .newsletter-title {
    font-size: 1.75rem;
  }
}