/* === Глобальные стили === */

:root {
  --color-primary: #3b82f6;
  --color-primary-dark: #2563eb;
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-border: #e2e8f0;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  min-height: 100vh;
}

/* === Навигация === */

.navbar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0 1rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow);
}

.navbar-brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.navbar-links {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.navbar-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  transition: color 0.15s, background 0.15s;
}

.navbar-links a:hover,
.navbar-links a.active {
  color: var(--color-primary);
  background: rgba(59, 130, 246, 0.08);
}

/* === Контейнер === */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* === Формы === */

.auth-container {
  min-height: calc(100vh - 56px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.auth-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  width: 100%;
  max-width: 420px;
}

.auth-card h2 {
  margin-bottom: 1.5rem;
  text-align: center;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.375rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: border-color 0.15s;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.625rem 1.25rem;
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}

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

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

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

.btn-danger {
  background: var(--color-danger);
  color: #fff;
}
.btn-danger:hover { background: #dc2626; }

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.8rem;
}

.btn-block {
  width: 100%;
}

/* === Сообщения об ошибках / успехах === */

.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.alert-error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.alert-success {
  background: #f0fdf4;
  color: #166534;
  border: 1px solid #bbf7d0;
}

/* === Карта === */

#map {
  width: 100%;
  height: 100%;
  min-height: 300px;
}

.map-page {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 56px);
}

.map-content {
  flex: 1;
  position: relative;
  min-height: 400px;
}

/* === Главная страница === */

.home-section {
  padding: 1.5rem 0;
}

.home-section h2 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.track-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.track-item {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.15s;
  border: 1px solid var(--color-border);
}

.track-item:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.track-info h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.track-meta {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  display: flex;
  gap: 1rem;
}

.track-activity {
  font-size: 1.5rem;
  line-height: 1;
}

/* === История === */

.history-filters {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.history-filters input,
.history-filters select {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.875rem;
}

/* === Страница трека === */

.track-page {
  padding: 1.5rem 0;
}

.track-header {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.track-header h1 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.track-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.stat-card {
  text-align: center;
  padding: 0.75rem;
  background: var(--color-bg);
  border-radius: var(--radius);
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-top: 0.25rem;
}

.track-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.track-actions .btn { flex-shrink: 0; }

/* === Профиль === */

.profile-section {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.profile-section h3 {
  margin-bottom: 1rem;
  font-size: 1.125rem;
}

.profile-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--color-bg);
  border: 2px solid var(--color-border);
}

.profile-avatar-placeholder {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  background: var(--color-bg);
  border: 2px solid var(--color-border);
}

/* === Публичная страница === */

.shared-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.shared-owner-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  background: var(--color-bg);
}

/* === SSE маркер (live) === */

.live-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8rem;
  color: var(--color-success);
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* === Утилиты === */

.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-secondary); font-size: 0.8rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.gap-1 { gap: 0.5rem; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }

/* Адаптивность */
@media (max-width: 640px) {
  .navbar { padding: 0 0.75rem; }
  .navbar-links a { padding: 0.4rem 0.5rem; font-size: 0.8rem; }
  .track-stats { grid-template-columns: repeat(2, 1fr); }
}