/* === AI Jobs Board - Dark Stone Theme === */

:root {
  --bg-primary: #0c0a09;
  --bg-secondary: #1c1917;
  --bg-card: #1c1917;
  --bg-card-hover: #292524;
  --bg-input: #292524;
  --border: #3f3f46;
  --border-light: #52525b;
  --text-primary: #fafaf9;
  --text-secondary: #a8a29e;
  --text-muted: #78716c;
  --violet: #a78bfa;
  --violet-dim: #7c3aed;
  --violet-glow: rgba(167, 139, 250, 0.15);
  --emerald: #34d399;
  --emerald-dim: #059669;
  --emerald-bg: rgba(52, 211, 153, 0.12);
  --red: #f87171;
  --amber: #fbbf24;
  --blue: #60a5fa;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 2px 12px rgba(0,0,0,0.4);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* === Header === */
.site-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 2rem;
  text-align: center;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
}

.logo-icon {
  font-size: 1.8rem;
  color: var(--violet);
}

.logo h1 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.tagline {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

/* === Search Section === */
.search-section {
  padding: 2rem 2rem 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.search-bar {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.search-bar input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1.2rem;
  font-size: 1rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s;
}

.search-bar input:focus {
  border-color: var(--violet);
  box-shadow: 0 0 0 3px var(--violet-glow);
}

.search-bar input::placeholder {
  color: var(--text-muted);
}

.btn-primary {
  background: var(--violet);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 0.85rem 1.6rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  white-space: nowrap;
}

.btn-primary:hover {
  background: var(--violet-dim);
}

.btn-primary:active {
  transform: scale(0.97);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.65rem 1.2rem;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
  width: 100%;
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
}

.btn-secondary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-text-link {
  background: none;
  border: none;
  color: var(--violet);
  font-size: 0.8rem;
  cursor: pointer;
  padding: 0;
}

.btn-text-link:hover {
  text-decoration: underline;
}

.quick-searches {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.quick-label {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.quick-tag {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0.3rem 0.8rem;
  font-size: 0.78rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.quick-tag:hover {
  border-color: var(--violet);
  color: var(--violet);
}

/* === Main Layout === */
.main-layout {
  display: flex;
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem 2rem;
}

/* === Sidebar === */
.filter-sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  height: fit-content;
  position: sticky;
  top: 1rem;
}

.filter-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.filter-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.filter-group {
  margin-bottom: 1.25rem;
}

.filter-group h4 {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.6rem;
}

.filter-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.2rem 0;
}

.filter-check input[type="checkbox"] {
  accent-color: var(--violet);
  width: 15px;
  height: 15px;
}

/* Salary Slider */
.salary-slider-container {
  position: relative;
  padding: 0.5rem 0;
}

.salary-slider-container input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
  margin: 0.4rem 0;
}

.salary-slider-container input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--violet);
  cursor: pointer;
  border: 2px solid var(--bg-primary);
}

.salary-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--violet);
  font-weight: 600;
}

/* Skills Filter Tags */
.skills-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.skill-tag-filter {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.2rem 0.6rem;
  font-size: 0.72rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.skill-tag-filter:hover {
  border-color: var(--emerald);
  color: var(--emerald);
}

.skill-tag-filter.active {
  background: var(--emerald-bg);
  border-color: var(--emerald);
  color: var(--emerald);
}

/* Sort Select */
#sortSelect {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  color: var(--text-primary);
  outline: none;
}

#sortSelect:focus {
  border-color: var(--violet);
}

/* === Content Area === */
.content-area {
  flex: 1;
  min-width: 0;
}

/* Market Summary */
.market-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 1rem;
}

.summary-stat {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
}

.summary-value {
  display: block;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--violet);
}

.summary-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* Results Info */
.results-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.btn-filter-toggle {
  display: none;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.8rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  cursor: pointer;
}

/* === Job Cards === */
.job-cards {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.job-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.job-card:hover {
  border-color: var(--border-light);
  box-shadow: var(--shadow);
}

.job-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 1.1rem 1.25rem;
  cursor: pointer;
  gap: 1rem;
}

.job-card-left {
  flex: 1;
  min-width: 0;
}

.job-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}

.job-company {
  font-size: 0.88rem;
  color: var(--violet);
  font-weight: 500;
}

.job-meta {
  display: flex;
  gap: 1rem;
  margin-top: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.job-meta span {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.job-skills-preview {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.skill-tag {
  background: var(--emerald-bg);
  color: var(--emerald);
  border: 1px solid rgba(52, 211, 153, 0.25);
  border-radius: 12px;
  padding: 0.15rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 500;
}

.job-card-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.4rem;
  flex-shrink: 0;
}

.fit-score {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 1rem;
  font-weight: 700;
}

.fit-score.high {
  background: rgba(52, 211, 153, 0.15);
  color: var(--emerald);
  border: 2px solid var(--emerald);
}

.fit-score.medium {
  background: rgba(251, 191, 36, 0.15);
  color: var(--amber);
  border: 2px solid var(--amber);
}

.fit-score.low {
  background: rgba(248, 113, 113, 0.15);
  color: var(--red);
  border: 2px solid var(--red);
}

.job-salary {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

.job-applicants {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Expanded Card */
.job-card-body {
  display: none;
  padding: 0 1.25rem 1.25rem;
  border-top: 1px solid var(--border);
}

.job-card.expanded .job-card-body {
  display: block;
}

.job-card.expanded {
  border-color: var(--violet);
  box-shadow: 0 0 0 1px var(--violet-glow);
}

.job-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-top: 1rem;
}

.job-description h5 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0.75rem 0 0.35rem;
}

.expand-indicator {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

/* === Empty / Loading / Error States === */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state h2 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.empty-state p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 400px;
}

.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--violet);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 1rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-state p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.loading-sub {
  color: var(--text-muted) !important;
  font-size: 0.82rem !important;
  margin-top: 0.25rem;
}

.error-state {
  text-align: center;
  padding: 3rem 2rem;
}

.error-msg {
  color: var(--red);
  margin-bottom: 1rem;
}

/* === History Section === */
.history-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem 2rem;
}

.history-inner h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.history-list {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.history-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.85rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.2s;
}

.history-item:hover {
  border-color: var(--violet);
  color: var(--violet);
}

.history-item .history-count {
  color: var(--text-muted);
  font-size: 0.72rem;
  margin-left: 0.3rem;
}

.history-empty {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* === Signup Section === */
.signup-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
  text-align: center;
}

.signup-inner {
  max-width: 500px;
  margin: 0 auto;
}

.signup-inner h2 {
  font-size: 1.5rem;
  margin-bottom: 0.4rem;
}

.signup-inner > p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

.signup-form {
  display: flex;
  gap: 0.5rem;
}

.signup-form input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  color: var(--text-primary);
  outline: none;
}

.signup-form input:focus {
  border-color: var(--violet);
}

.signup-status {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--emerald);
}

.signup-status.error {
  color: var(--red);
}

/* === Footer === */
.site-footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* === Responsive === */
@media (max-width: 768px) {
  .main-layout {
    flex-direction: column;
    padding: 0 1rem 1.5rem;
  }

  .filter-sidebar {
    width: 100%;
    position: static;
    display: none;
  }

  .filter-sidebar.mobile-open {
    display: block;
  }

  .btn-filter-toggle {
    display: block;
  }

  .search-section {
    padding: 1.25rem 1rem 0.75rem;
  }

  .search-bar {
    flex-direction: column;
  }

  .market-summary {
    grid-template-columns: repeat(2, 1fr);
  }

  .job-card-header {
    flex-direction: column;
    gap: 0.6rem;
  }

  .job-card-right {
    flex-direction: row;
    align-items: center;
    gap: 1rem;
  }

  .history-section {
    padding: 1rem;
  }

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

@media (max-width: 480px) {
  .quick-searches {
    display: none;
  }

  .market-summary {
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
  }
}