/* =========================================
   TechLinker Vagas — Design System
   ========================================= */

:root {
  /* Colors — Light Mode (default) */
  --color-bg: #eef2ff;
  --color-bg-secondary: #e0e7ff;
  --color-surface: #ffffff;
  --color-surface-hover: #f5f3ff;
  --color-border: rgba(99, 102, 241, 0.12);
  --color-text: #0f172a;
  --color-text-secondary: #334155;
  --color-text-muted: #64748b;
  --color-primary: #4f46e5;
  --color-primary-light: #4338ca;
  --color-primary-glow: rgba(79, 70, 229, 0.18);
  --color-accent: #0284c7;
  --color-accent-glow: rgba(2, 132, 199, 0.15);
  --color-success: #059669;
  --color-warning: #d97706;
  --color-shadow: rgba(79, 70, 229, 0.08);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Borders */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

/* Dark Mode */
[data-theme="dark"] {
  --color-bg: #0a0e1a;
  --color-bg-secondary: #111827;
  --color-surface: #1a1f35;
  --color-surface-hover: #222845;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-text: #e2e8f0;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-primary: #6366f1;
  --color-primary-light: #818cf8;
  --color-primary-glow: rgba(99, 102, 241, 0.15);
  --color-accent: #22d3ee;
  --color-accent-glow: rgba(34, 211, 238, 0.15);
  --color-success: #34d399;
  --color-warning: #fbbf24;
  --color-shadow: rgba(0, 0, 0, 0.3);
}

/* =========================================
   Reset & Base
   ========================================= */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.main-content {
  flex: 1;
}

/* =========================================
   Header
   ========================================= */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  transition: opacity var(--transition-fast);
  flex-shrink: 0;
}

.logo:hover {
  opacity: 0.85;
}

.logo-img {
  height: 36px;
  width: auto;
  object-fit: contain;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text);
}

.nav-cta {
  background: linear-gradient(135deg, var(--color-primary), #4f46e5);
  color: #fff !important;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-md);
  font-weight: 600;
  white-space: nowrap;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--color-primary-glow);
}

/* Texto alternativo para mobile */
.nav-cta .cta-full { display: inline; }
.nav-cta .cta-short { display: none; }

/* =========================================
   Hero
   ========================================= */
.hero {
  padding: var(--space-16) 0 var(--space-10);
  text-align: center;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-secondary) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--space-4);
  position: relative;
}

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

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  position: relative;
}

.hero-count {
  font-weight: 700;
  color: var(--color-accent);
}

/* =========================================
   Filters
   ========================================= */
.filters-section {
  padding: var(--space-4) 0;
  position: sticky;
  top: 57px; /* altura do header */
  z-index: 90;
  background: color-mix(in srgb, var(--color-bg) 95%, transparent);
  backdrop-filter: blur(16px);
  margin-top: -2rem;
  border-bottom: 1px solid var(--color-border);
}

.filters-bar {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: 0 8px 32px var(--color-shadow);
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.filter-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.filter-input,
.filter-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.filter-input:focus,
.filter-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.filter-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 2.5rem;
}

.filter-results {
  margin-top: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-align: right;
}

/* =========================================
   Jobs Grid
   ========================================= */
.jobs-section {
  padding: var(--space-10) 0 var(--space-16);
}

.jobs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-6);
}

.job-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: 0 2px 12px var(--color-shadow);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.job-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.job-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px var(--color-shadow);
  border-color: rgba(99, 102, 241, 0.3);
}

.job-card:hover::before {
  opacity: 1;
}

.job-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3);
}

.job-type-badge {
  font-size: var(--font-size-xs);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.job-type-fulltime {
  background: rgba(79, 70, 229, 0.12);
  color: var(--color-primary-light);
}

.job-type-parttime {
  background: rgba(2, 132, 199, 0.12);
  color: var(--color-accent);
}

.job-type-contract {
  background: rgba(217, 119, 6, 0.12);
  color: var(--color-warning);
}

.job-type-temporary {
  background: rgba(5, 150, 105, 0.12);
  color: var(--color-success);
}

.job-type-intern {
  background: rgba(139, 92, 246, 0.12);
  color: #7c3aed;
}

[data-theme="dark"] .job-type-fulltime {
  background: rgba(99, 102, 241, 0.18);
  color: #818cf8;
}

[data-theme="dark"] .job-type-parttime {
  background: rgba(34, 211, 238, 0.18);
  color: #22d3ee;
}

[data-theme="dark"] .job-type-contract {
  background: rgba(251, 191, 36, 0.18);
  color: #fbbf24;
}

[data-theme="dark"] .job-type-temporary {
  background: rgba(52, 211, 153, 0.18);
  color: #34d399;
}

[data-theme="dark"] .job-type-intern {
  background: rgba(168, 85, 247, 0.18);
  color: #a855f7;
}

.job-date {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.job-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--space-3);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.job-company,
.job-location,
.job-salary {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}

.job-salary {
  font-weight: 600;
  color: var(--color-success);
}

.job-card-footer {
  margin-top: auto;
  padding-top: var(--space-4);
}

.job-cta {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary-light);
  transition: color var(--transition-fast);
}

.job-card:hover .job-cta {
  color: var(--color-accent);
}

/* =========================================
   No Results
   ========================================= */
.no-results {
  text-align: center;
  padding: var(--space-16) 0;
}

.no-results-text {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.btn-clear-filters {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.btn-clear-filters:hover {
  background: var(--color-surface-hover);
}

/* =========================================
   Job Detail Page
   ========================================= */
.breadcrumbs {
  padding: var(--space-4) 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.breadcrumbs a {
  color: var(--color-primary-light);
  transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
  color: var(--color-accent);
}

.breadcrumb-sep {
  margin: 0 var(--space-2);
}

.job-detail {
  padding: 0 0 var(--space-16);
}

.job-detail-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 4px 24px var(--color-shadow);
}

.job-detail-header {
  padding: var(--space-10) var(--space-8);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(34, 211, 238, 0.05) 100%);
  border-bottom: 1px solid var(--color-border);
}

.job-detail-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.job-detail-title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

.job-detail-info {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
}

.job-detail-salary {
  font-weight: 600;
  color: var(--color-success);
}

.job-detail-body {
  padding: var(--space-8);
}

.job-detail-body h2 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.job-description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.job-description strong {
  color: var(--color-text);
  font-weight: 600;
}

.job-description br {
  display: block;
  margin-bottom: var(--space-1);
}

.job-extra-info {
  margin-top: var(--space-8);
  display: grid;
  gap: var(--space-3);
}

.info-item {
  display: flex;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
}

.info-label {
  font-weight: 600;
  color: var(--color-text-muted);
  min-width: 120px;
}

.info-value {
  color: var(--color-text-secondary);
}

.job-detail-footer {
  padding: var(--space-8);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.btn-apply {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: linear-gradient(135deg, var(--color-primary), #4f46e5);
  color: #fff;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: var(--font-size-base);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-apply:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--color-primary-glow);
}

.btn-back {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.btn-back:hover {
  color: var(--color-text);
}

/* =========================================
   Footer
   ========================================= */
.footer {
  padding: var(--space-8) 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  gap: var(--space-6);
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-primary-light);
}

/* =========================================
   Responsive — Tablet (max 1024px)
   ========================================= */
@media (max-width: 1024px) {
  .filters-bar {
    grid-template-columns: 1fr 1fr;
  }

  .filter-group:first-child {
    grid-column: 1 / -1;
  }

  .jobs-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

/* =========================================
   Responsive — Mobile (max 768px)
   ========================================= */
@media (max-width: 768px) {
  /* Header */
  .header {
    padding: var(--space-3) 0;
  }

  .header-nav {
    gap: var(--space-2);
  }

  .logo {
    font-size: var(--font-size-base);
  }

  .logo-icon {
    font-size: 1.2rem;
  }

  .logo-subtitle {
    display: none;
  }

  /* CTA botão compacto */
  .nav-cta {
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-xs);
  }

  .nav-cta .cta-full { display: none; }
  .nav-cta .cta-short { display: inline; }

  .theme-toggle {
    width: 34px;
    height: 34px;
    font-size: 1rem;
  }

  /* Filters sticky */
  .filters-section {
    top: 49px;
    padding: var(--space-3) 0;
  }

  .filters-bar {
    grid-template-columns: 1fr;
    padding: var(--space-4);
    gap: var(--space-3);
    border-radius: var(--radius-md);
  }

  .filter-label {
    display: none;
  }

  /* Hero */
  .hero {
    padding: var(--space-10) 0 var(--space-8);
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

  /* Jobs Grid */
  .jobs-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .jobs-section {
    padding: var(--space-6) 0 var(--space-10);
  }

  /* Job Detail */
  .job-detail-header {
    padding: var(--space-6) var(--space-4);
  }

  .job-detail-title {
    font-size: var(--font-size-xl);
  }

  .job-detail-body {
    padding: var(--space-4);
  }

  .job-detail-info {
    flex-direction: column;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
  }

  .job-detail-footer {
    flex-direction: column;
    padding: var(--space-4);
  }

  .btn-apply {
    width: 100%;
    justify-content: center;
    padding: var(--space-3) var(--space-6);
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

/* =========================================
   Responsive — Small Mobile (max 480px)
   ========================================= */
@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-3);
  }

  .hero {
    padding: var(--space-8) 0 var(--space-6);
  }

  .hero-title {
    font-size: var(--font-size-xl);
  }

  .job-card {
    padding: var(--space-4);
  }

  .job-title {
    font-size: var(--font-size-base);
  }

  .filters-section {
    top: 45px;
  }

  .filters-bar {
    padding: var(--space-3);
    gap: var(--space-2);
  }

  .filter-input,
  .filter-select {
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-xs);
  }

  .breadcrumbs {
    font-size: var(--font-size-xs);
  }

  .job-detail-title {
    font-size: var(--font-size-lg);
  }

  .nav-cta {
    padding: var(--space-1) var(--space-2);
  }
}

/* =========================================
   Theme Toggle
   ========================================= */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-surface);
  color: var(--color-text-secondary);
  cursor: pointer;
  font-size: 1.2rem;
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
  transform: scale(1.08);
  box-shadow: 0 2px 12px var(--color-primary-glow);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  line-height: 1;
}

.theme-toggle .icon-sun {
  display: inline;
}

.theme-toggle .icon-moon {
  display: none;
}

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

[data-theme="dark"] .theme-toggle .icon-moon {
  display: inline;
}

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

.job-card {
  animation: fadeInUp 0.4s ease both;
}

.jobs-grid .job-card:nth-child(2) { animation-delay: 0.05s; }
.jobs-grid .job-card:nth-child(3) { animation-delay: 0.1s; }
.jobs-grid .job-card:nth-child(4) { animation-delay: 0.15s; }
.jobs-grid .job-card:nth-child(5) { animation-delay: 0.2s; }
.jobs-grid .job-card:nth-child(6) { animation-delay: 0.25s; }