/* ==========================================================================
   TalentForge - Core Design System & Stylesheet
   Built with Bootstrap 5.3 + Tabler Icons + Plus Jakarta Sans
   Palette: Navy (#172554), Blue (#2563EB), Teal (#14B8A6), Bg (#F8FAFC)
   ========================================================================== */

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

:root {
  --tf-primary: #172554;
  --tf-primary-hover: #1e3a8a;
  --tf-secondary: #2563EB;
  --tf-secondary-hover: #1d4ed8;
  --tf-accent: #14B8A6;
  --tf-accent-hover: #0d9488;
  --tf-bg: #F8FAFC;
  --tf-card-bg: #FFFFFF;
  --tf-text-main: #172033;
  --tf-text-muted: #64748B;
  --tf-border: #E2E8F0;
  --tf-border-focus: #93C5FD;
  --tf-shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --tf-shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --tf-shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --tf-radius: 8px;
  --tf-radius-lg: 12px;
  --tf-transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Resets & Typography */
body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--tf-text-main);
  background-color: var(--tf-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--tf-text-main);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

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

a:hover {
  color: var(--tf-secondary-hover);
}

/* Buttons */
.btn-tf-primary {
  background-color: var(--tf-primary);
  color: #FFFFFF;
  font-weight: 600;
  padding: 0.625rem 1.25rem;
  border-radius: var(--tf-radius);
  border: 1px solid var(--tf-primary);
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  transition: var(--tf-transition);
  white-space: nowrap;
}

.btn-tf-primary:hover, .btn-tf-primary:focus {
  background-color: var(--tf-primary-hover);
  border-color: var(--tf-primary-hover);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(23, 37, 84, 0.15);
}

.btn-tf-secondary {
  background-color: var(--tf-secondary);
  color: #FFFFFF;
  font-weight: 600;
  padding: 0.625rem 1.25rem;
  border-radius: var(--tf-radius);
  border: 1px solid var(--tf-secondary);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--tf-transition);
  white-space: nowrap;
}

.btn-tf-secondary:hover, .btn-tf-secondary:focus {
  background-color: var(--tf-secondary-hover);
  border-color: var(--tf-secondary-hover);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.btn-tf-outline {
  background-color: transparent;
  color: var(--tf-text-main);
  font-weight: 600;
  padding: 0.625rem 0.6rem;
  border-radius: var(--tf-radius);
  border: 1px solid var(--tf-border);
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  transition: var(--tf-transition);
  white-space: nowrap;
}

.btn-tf-outline:hover {
  background-color: #FFFFFF;
  border-color: var(--tf-secondary);
  color: var(--tf-secondary);
}

.btn-tf-accent {
  background-color: var(--tf-accent);
  color: #FFFFFF;
  font-weight: 600;
  padding: 0.625rem 1.25rem;
  border-radius: var(--tf-radius);
  border: 1px solid var(--tf-accent);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--tf-transition);
  white-space: nowrap;
}

.btn-tf-accent:hover {
  background-color: var(--tf-accent-hover);
  border-color: var(--tf-accent-hover);
  color: #FFFFFF;
}

/* Announcement Bar */
.tf-top-bar {
  background-color: #0F172A;
  color: #94A3B8;
  font-size: 0.8125rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.tf-top-bar a {
  color: #CBD5E1;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.tf-top-bar a:hover {
  color: #FFFFFF;
}

/* Common Navigation Header */
.tf-navbar {
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--tf-border);
  position: sticky;
  top: 0;
  z-index: 1030;
  box-shadow: var(--tf-shadow-sm);
  transition: var(--tf-transition);
}

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

.tf-brand {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--tf-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  letter-spacing: -0.03em;
}

.tf-brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--tf-primary) 0%, var(--tf-secondary) 100%);
  color: #FFFFFF;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 1.2rem;
}

.tf-nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--tf-text-main);
  padding: 0.5rem 0.85rem;
  transition: var(--tf-transition);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

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

.tf-nav-link.active {
  font-weight: 600;
}

.tf-dropdown-menu {
  border: 1px solid var(--tf-border);
  border-radius: var(--tf-radius);
  box-shadow: var(--tf-shadow-lg);
  padding: 0.5rem 0;
  min-width: 220px;
}

.tf-dropdown-item {
  padding: 0.6rem 1.2rem;
  font-size: 0.875rem;
  color: var(--tf-text-main);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transition: var(--tf-transition);
}

.tf-dropdown-item:hover {
  background-color: #F1F5F9;
  color: var(--tf-secondary);
}

/* Hero Section */
.tf-hero {
  position: relative;
  background-color: var(--tf-primary);
  color: #FFFFFF;
  padding: 4.5rem 0 5rem;
  overflow: hidden;
}

.tf-hero-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.18;
  mix-blend-mode: luminosity;
  pointer-events: none;
}

.tf-hero-title {
  font-size: clamp(2.25rem, 4.5vw, 3.5rem);
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.15;
  text-wrap: balance;
  margin-bottom: 1.25rem;
}

.tf-hero-subtitle {
  font-size: 1.125rem;
  color: #CBD5E1;
  max-width: 650px;
  line-height: 1.6;
  margin-bottom: 2.25rem;
}

/* Search Box Container */
.tf-search-box {
  background: #FFFFFF;
  border-radius: var(--tf-radius-lg);
  padding: 0.65rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.tf-search-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.tf-search-icon {
  position: absolute;
  left: 1rem;
  color: var(--tf-text-muted);
  font-size: 1.25rem;
  pointer-events: none;
}

.tf-search-control {
  border: 1px solid transparent;
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  font-size: 0.9375rem;
  color: var(--tf-text-main);
  background: transparent;
  width: 100%;
  border-radius: var(--tf-radius);
  transition: var(--tf-transition);
}

.tf-search-control:focus {
  outline: none;
  background: #F8FAFC;
  border-color: var(--tf-border-focus);
}

.tf-search-divider {
  width: 1px;
  height: 36px;
  background-color: var(--tf-border);
  display: none;
}

@media (min-width: 992px) {
  .tf-search-divider {
    display: block;
  }
}

.tf-popular-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
  font-size: 0.875rem;
  color: #94A3B8;
}

.tf-popular-link {
  color: #E2E8F0;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  font-size: 0.8125rem;
  transition: var(--tf-transition);
}

.tf-popular-link:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
}

/* Trusted Partners Ribbon */
.tf-trusted-partners {
  background: #FFFFFF;
  border-bottom: 1px solid var(--tf-border);
  padding: 1.75rem 0;
}

.tf-partner-label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--tf-text-muted);
}

.tf-partner-logo {
  font-weight: 700;
  font-size: 1.15rem;
  color: #94A3B8;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: var(--tf-transition);
}

.tf-partner-logo:hover {
  color: var(--tf-primary);
}

/* Section Styling */
.tf-section {
  padding: 4.5rem 0;
}

.tf-section-bg {
  background-color: #F1F5F9;
}

.tf-section-header {
  margin-bottom: 2.75rem;
}

.tf-section-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--tf-text-main);
  letter-spacing: -0.02em;
}

.tf-section-subtitle {
  color: var(--tf-text-muted);
  font-size: 1rem;
  margin-top: 0.35rem;
}

/* Category Cards */
.tf-category-card {
  background: var(--tf-card-bg);
  border: 1px solid var(--tf-border);
  border-radius: var(--tf-radius);
  padding: 1.5rem;
  text-decoration: none;
  display: block;
  transition: var(--tf-transition);
  height: 100%;
}

.tf-category-card:hover {
  border-color: var(--tf-secondary);
  box-shadow: var(--tf-shadow-md);
  transform: translateY(-2px);
}

.tf-category-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: #EFF6FF;
  color: var(--tf-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
  transition: var(--tf-transition);
}

.tf-category-card:hover .tf-category-icon {
  background: var(--tf-secondary);
  color: #FFFFFF;
}

.tf-category-name {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--tf-text-main);
  margin-bottom: 0.35rem;
}

.tf-category-count {
  font-size: 0.8125rem;
  color: var(--tf-text-muted);
}

/* Job Cards (Zero-Pill Discipline) */
.tf-job-card {
  background: var(--tf-card-bg);
  border: 1px solid var(--tf-border);
  border-radius: var(--tf-radius);
  padding: 1.5rem;
  transition: var(--tf-transition);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.tf-job-card:hover {
  border-color: #CBD5E1;
  box-shadow: var(--tf-shadow-md);
  transform: translateY(-2px);
}

.tf-job-card.featured-card {
  border-left: 3px solid var(--tf-secondary);
}

.tf-company-avatar {
  width: 46px;
  height: 46px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: #FFFFFF;
  flex-shrink: 0;
}

.tf-job-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--tf-text-main);
  margin-bottom: 0.3rem;
  line-height: 1.35;
}

.tf-job-title a {
  color: var(--tf-text-main);
}

.tf-job-title a:hover {
  color: var(--tf-secondary);
}

.tf-company-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--tf-secondary);
}

/* Zero-Pill Metadata Container with · separator */
.tf-job-metadata {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.8125rem;
  color: var(--tf-text-muted);
  margin: 0.75rem 0;
}

.tf-metadata-item {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.tf-metadata-separator {
  color: #CBD5E1;
  user-select: none;
}

.tf-salary-tag {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--tf-primary);
  font-variant-numeric: tabular-nums;
}

.tf-save-btn {
  background: transparent;
  border: 1px solid var(--tf-border);
  color: var(--tf-text-muted);
  width: 36px;
  height: 36px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--tf-transition);
  cursor: pointer;
}

.tf-save-btn:hover {
  background: #F1F5F9;
  color: #EF4444;
  border-color: #FCA5A5;
}

.tf-save-btn.active {
  background: #FEE2E2;
  color: #EF4444;
  border-color: #FCA5A5;
}

/* How It Works Section */
.tf-step-card {
  background: var(--tf-card-bg);
  border: 1px solid var(--tf-border);
  border-radius: var(--tf-radius);
  padding: 2rem;
  height: 100%;
  position: relative;
}

.tf-step-number {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--tf-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.tf-step-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

/* Article Cards */
.tf-article-card {
  background: var(--tf-card-bg);
  border: 1px solid var(--tf-border);
  border-radius: var(--tf-radius);
  overflow: hidden;
  height: 100%;
  transition: var(--tf-transition);
  display: flex;
  flex-direction: column;
}

.tf-article-card:hover {
  border-color: #CBD5E1;
  box-shadow: var(--tf-shadow-md);
  transform: translateY(-2px);
}

.tf-article-img-wrap {
  position: relative;
  height: 200px;
  overflow: hidden;
  background-color: #E2E8F0;
}

.tf-article-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.tf-article-card:hover .tf-article-img {
  transform: scale(1.03);
}

.tf-article-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.tf-article-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.6rem;
}

.tf-article-title a {
  color: var(--tf-text-main);
}

.tf-article-title a:hover {
  color: var(--tf-secondary);
}

/* Common Footer */
.tf-footer {
  background-color: #0F172A;
  color: #94A3B8;
  padding: 5rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.tf-footer h5 {
  color: #FFFFFF;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
}

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

.tf-footer-links li {
  margin-bottom: 0.65rem;
}

.tf-footer-links a {
  color: #94A3B8;
  font-size: 0.875rem;
  transition: var(--tf-transition);
}

.tf-footer-links a:hover {
  color: #FFFFFF;
  padding-left: 3px;
}

.tf-footer-newsletter {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--tf-radius);
  padding: 1.25rem;
}

.tf-newsletter-input {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  border-radius: var(--tf-radius);
  font-size: 0.875rem;
  padding: 0.65rem 1rem;
}

.tf-newsletter-input:focus {
  background: rgba(255, 255, 255, 0.12);
  color: #FFFFFF;
  border-color: var(--tf-secondary);
  box-shadow: none;
}

.tf-newsletter-input::placeholder {
    color: rgb(255 255 255 / 50%);
}

.tf-social-icon {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: #94A3B8;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  transition: var(--tf-transition);
}

.tf-social-icon:hover {
  background: var(--tf-secondary);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.tf-footer-bottom {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.8125rem;
}

/* Filter Sidebar Controls */
.tf-filter-box {
  background: #FFFFFF;
  border: 1px solid var(--tf-border);
  border-radius: var(--tf-radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.tf-filter-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tf-filter-group {
  margin-bottom: 1.5rem;
}

.tf-filter-group:last-child {
  margin-bottom: 0;
}

.tf-filter-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--tf-text-main);
  margin-bottom: 0.5rem;
  display: block;
}

/* Custom Checkbox */
.tf-check-label {
  font-size: 0.875rem;
  color: var(--tf-text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.45rem;
}

.tf-check-label input {
  margin-right: 0.5rem;
  accent-color: var(--tf-secondary);
}

/* Toast Container */
.tf-toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1090;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tf-toast {
  background: #1E293B;
  color: #FFFFFF;
  border-radius: var(--tf-radius);
  padding: 0.875rem 1.25rem;
  font-size: 0.875rem;
  box-shadow: var(--tf-shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 280px;
  max-width: 380px;
  animation: slideInRight 0.25s ease-out;
}

.tf-toast-success {
  border-left: 4px solid var(--tf-accent);
}

.tf-toast-info {
  border-left: 4px solid var(--tf-secondary);
}

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

/* Back to Top Button */
.tf-back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: var(--tf-primary);
  color: #FFFFFF;
  border: none;
  box-shadow: var(--tf-shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--tf-transition);
  z-index: 1020;
}

.tf-back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.tf-back-to-top:hover {
  background: var(--tf-secondary);
  transform: translateY(-2px);
}