/* TenderSearch — Dark Theme Styles */

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #13131a;
  --bg-tertiary: #1a1a24;
  --bg-card: #13131a;
  --bg-card-hover: #1c1c28;
  --border: #1e1e2e;
  --border-light: #2a2a3a;

  --text-primary: #e0e0e0;
  --text-secondary: #a0a0b0;
  --text-muted: #606070;

  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-green: #22c55e;
  --accent-red: #ef4444;
  --accent-orange: #f59e0b;

  --gradient: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  --gradient-hover: linear-gradient(135deg, #2563eb, #7c3aed);

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 50px;

  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);

  --transition: 0.2s ease;
}

/* ── Reset & Base ──────────────────────────────────────────── */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

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

a { color: var(--accent-blue); text-decoration: none; }
a:hover { color: var(--accent-purple); }

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

/* ── Typography ────────────────────────────────────────────── */

h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  line-height: 1.3;
}

h1 { font-size: 2.5rem; font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: 2rem; font-weight: 700; }
h3 { font-size: 1.5rem; font-weight: 600; }
h4 { font-size: 1.25rem; font-weight: 600; }

p { color: var(--text-secondary); margin-bottom: 1rem; }

.text-gradient {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Layout ────────────────────────────────────────────────── */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-sm {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 80px 0;
}

/* ── Header / Nav ──────────────────────────────────────────── */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo .icon {
  font-size: 1.8rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

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

.nav .btn-primary {
  padding: 8px 20px;
  font-size: 0.85rem;
}

/* ── Buttons ───────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border: none;
  border-radius: var(--radius-xl);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
}

.btn-primary:hover {
  background: var(--gradient-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-blue);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.1rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ── Cards ─────────────────────────────────────────────────── */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.card-highlight {
  border-color: var(--accent-blue);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(139, 92, 246, 0.08));
}

/* ── Forms ─────────────────────────────────────────────────── */

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

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

textarea.form-input {
  resize: vertical;
  min-height: 100px;
}

select.form-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23606070' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-error {
  color: var(--accent-red);
  font-size: 0.85rem;
  margin-top: 4px;
}

.form-success {
  color: var(--accent-green);
  font-size: 0.85rem;
  margin-top: 4px;
}

/* ── Hero ──────────────────────────────────────────────────── */

.hero {
  padding: 160px 0 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Steps ─────────────────────────────────────────────────── */

.steps {
  padding: 80px 0;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  margin-top: 48px;
}

.step-card {
  text-align: center;
  padding: 36px 24px;
}

.step-icon {
  width: 64px;
  height: 64px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 20px;
}

.step-number {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-blue);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.step-card h3 {
  margin-bottom: 8px;
}

/* ── Pricing ───────────────────────────────────────────────── */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.pricing-card {
  text-align: center;
  padding: 36px 28px;
  position: relative;
}

.pricing-card.popular {
  border-color: var(--accent-purple);
  transform: scale(1.03);
}

.pricing-card.popular::before {
  content: 'Популярный';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient);
  color: #fff;
  padding: 4px 16px;
  border-radius: var(--radius-xl);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-price {
  font-size: 3rem;
  font-weight: 800;
  margin: 20px 0 4px;
}

.pricing-period {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 28px;
}

.pricing-features li {
  padding: 6px 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.pricing-features li::before {
  content: '✓ ';
  color: var(--accent-green);
  font-weight: 700;
}

/* ── FAQ ───────────────────────────────────────────────────── */

.faq-list {
  max-width: 700px;
  margin: 48px auto 0;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  padding: 18px 24px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-question::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--accent-blue);
  transition: transform var(--transition);
}

.faq-item.open .faq-question::after {
  content: '−';
}

.faq-answer {
  padding: 0 24px 18px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  display: none;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ── Auth Pages ────────────────────────────────────────────── */

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 100px 24px 60px;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  padding: 40px;
}

.auth-card h2 {
  text-align: center;
  margin-bottom: 8px;
}

.auth-card .subtitle {
  text-align: center;
  margin-bottom: 32px;
}

.auth-card .btn {
  width: 100%;
}

.auth-link {
  text-align: center;
  margin-top: 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ── Dashboard Layout ──────────────────────────────────────── */

.dashboard-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  padding: 20px 0;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  overflow-y: auto;
}

.sidebar-logo {
  padding: 0 20px 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.sidebar-nav {
  list-style: none;
  padding: 0 12px;
}

.sidebar-nav li {
  margin-bottom: 4px;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition);
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.sidebar-nav a.active {
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent-blue);
}

.sidebar-nav .icon {
  font-size: 1.2rem;
  width: 24px;
  text-align: center;
}

.main-content {
  flex: 1;
  margin-left: 240px;
  padding: 32px;
}

/* ── Dashboard Components ──────────────────────────────────── */

.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.stat-card {
  padding: 20px;
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 4px;
}

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

.tender-list {
  display: grid;
  gap: 12px;
}

.tender-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 20px;
  cursor: pointer;
}

.tender-item .tender-info {
  flex: 1;
}

.tender-item .tender-title {
  font-weight: 600;
  margin-bottom: 4px;
}

.tender-item .tender-meta {
  display: flex;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--radius-xl);
  font-size: 0.8rem;
  font-weight: 600;
}

.badge-blue { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }
.badge-purple { background: rgba(139, 92, 246, 0.15); color: var(--accent-purple); }
.badge-green { background: rgba(34, 197, 94, 0.15); color: var(--accent-green); }
.badge-red { background: rgba(239, 68, 68, 0.15); color: var(--accent-red); }
.badge-orange { background: rgba(245, 158, 11, 0.15); color: var(--accent-orange); }

/* ── Table ─────────────────────────────────────────────────── */

.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

td {
  font-size: 0.9rem;
}

tr:hover td {
  background: var(--bg-tertiary);
}

/* ── Tender Detail ─────────────────────────────────────────── */

.tender-detail-header {
  margin-bottom: 28px;
}

.tender-detail-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 12px 0;
}

.ai-analysis-block {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin: 24px 0;
}

.ai-analysis-block h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.ai-score {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 16px 0;
}

.ai-score-bar {
  flex: 1;
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.ai-score-fill {
  height: 100%;
  background: var(--gradient);
  border-radius: 4px;
  transition: width 0.5s ease;
}

/* ── Subscription Card ─────────────────────────────────────── */

.subscription-card {
  padding: 24px;
  margin-bottom: 16px;
}

.subscription-card .sub-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.sub-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 8px 0;
}

.sub-keyword {
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent-blue);
  padding: 2px 10px;
  border-radius: var(--radius-xl);
  font-size: 0.8rem;
}

.sub-actions {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

/* ── Profile ───────────────────────────────────────────────── */

.profile-section {
  margin-bottom: 32px;
}

.profile-section h3 {
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

/* ── Toast ─────────────────────────────────────────────────── */

.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  animation: slideIn 0.3s ease;
  max-width: 380px;
}

.toast-success { background: var(--accent-green); color: #000; }
.toast-error { background: var(--accent-red); color: #fff; }
.toast-info { background: var(--accent-blue); color: #fff; }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ── Marketing Page ────────────────────────────────────────── */

.marketing-section {
  margin-bottom: 40px;
}

.marketing-section h3 {
  margin-bottom: 16px;
}

/* ── Tester Page ───────────────────────────────────────────── */

.tester-check-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.tester-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.tester-section h4 {
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.checklist-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
  font-size: 0.9rem;
}

.checklist-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-blue);
}

.bug-report {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.bug-report textarea {
  width: 100%;
  margin-bottom: 12px;
}

/* ── Quick Links ───────────────────────────────────────────── */

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0;
}

.quick-link {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 8px 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.quick-link:hover {
  border-color: var(--accent-blue);
  color: var(--text-primary);
}

/* ── Footer ────────────────────────────────────────────────── */

.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  text-align: center;
}

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

/* ── Empty State ───────────────────────────────────────────── */

.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-state .icon {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state h3 {
  margin-bottom: 8px;
}

.empty-state p {
  margin-bottom: 20px;
}

/* ── Loading ───────────────────────────────────────────────── */

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--border);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}

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

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 40px;
  color: var(--text-muted);
}

/* ── Responsive ────────────────────────────────────────────── */

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  .hero h1 { font-size: 2.2rem; }

  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
    padding: 12px 0;
  }

  .sidebar-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
  }

  .sidebar-nav a {
    padding: 8px 12px;
  }

  .main-content {
    margin-left: 0;
    padding: 20px;
  }

  .dashboard-layout {
    flex-direction: column;
  }

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

  .pricing-card.popular {
    transform: none;
  }

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

@media (max-width: 480px) {
  .hero { padding: 120px 0 60px; }
  section { padding: 48px 0; }
  .stats-grid { grid-template-columns: 1fr; }
  .nav { gap: 12px; font-size: 0.85rem; }
}

/* ── Utility ───────────────────────────────────────────────── */

.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--accent-green); }
.text-danger { color: var(--accent-red); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.hidden { display: none !important; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }