/**
 * Version Notes:
 * File: /pwa/css/components.css
 * Version: 0.0.1
 * Last Modified: 2026-04-03 02:00 PM
 * Changes:
 * - Reusable components: buttons, cards, badges, forms, progress bars
 */

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--border-primary);
  background: var(--bg-elevated);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-active);
}

.btn-primary {
  background: var(--accent);
  color: var(--text-inverse);
  border-color: transparent;
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-success {
  background: var(--success);
  color: var(--text-inverse);
  border-color: transparent;
}

.btn-danger {
  background: var(--danger);
  color: white;
  border-color: transparent;
}

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

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

.btn .icon { width: 16px; height: 16px; }

.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-lg { padding: 14px 24px; font-size: 16px; }

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: 16px;
}

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

.card-title {
  font-size: 14px;
  font-weight: 600;
}

/* ============================================
   BADGES
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-info { background: var(--info-bg); color: var(--info); }

/* ============================================
   PROGRESS BAR
   ============================================ */
.progress-bar {
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--success);
  border-radius: 3px;
  transition: width 300ms ease;
}

/* ============================================
   FORMS
   ============================================ */
.form-group { margin-bottom: 16px; }

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.form-input, .form-select {
  width: 100%;
  padding: 10px 14px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition);
}

.form-input:focus, .form-select:focus {
  border-color: var(--input-focus);
}

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

/* ============================================
   TOGGLE SWITCH
   ============================================ */
.toggle {
  position: relative;
  width: 44px;
  height: 24px;
  cursor: pointer;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-track {
  position: absolute;
  inset: 0;
  background: var(--bg-tertiary);
  border-radius: 12px;
  border: 1px solid var(--border-primary);
  transition: all var(--transition);
}

.toggle input:checked + .toggle-track {
  background: var(--success);
  border-color: var(--success);
}

.toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  background: white;
  border-radius: 50%;
  transition: transform var(--transition);
  pointer-events: none;
}

.toggle input:checked ~ .toggle-thumb {
  transform: translateX(20px);
}

/* ============================================
   DIVIDER
   ============================================ */
.divider {
  height: 1px;
  background: var(--border-primary);
  margin: 16px 0;
}

/* ============================================
   LOADING SPINNER
   ============================================ */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-primary);
  border-top-color: var(--text-primary);
  border-radius: 50%;
  animation: spin 600ms linear infinite;
}

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

/* ============================================
   SETTINGS LAYOUT
   ============================================ */
.settings-layout {
  display: flex;
  gap: 0;
  max-width: 800px;
  height: 100%;
}

.settings-tabs {
  min-width: 160px;
  padding: 8px 0;
  border-right: 1px solid var(--border-primary);
  display: flex;
  flex-direction: column;
}

.settings-tab {
  padding: 10px 20px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: all var(--transition);
}

.settings-tab:hover { color: var(--text-primary); background: var(--bg-hover); }
.settings-tab.active { color: var(--text-primary); border-left-color: var(--accent); background: var(--bg-hover); }

.settings-panel {
  flex: 1;
  padding: 0 24px;
  overflow-y: auto;
}

.settings-section {
  padding: 20px 0;
  border-bottom: 1px solid var(--border-primary);
}

.settings-section:last-child { border-bottom: none; }

.settings-section h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  min-height: 44px;
}

.setting-label { flex: 1; min-width: 0; }
.setting-title { font-size: 14px; font-weight: 500; }
.setting-desc { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.setting-control { flex-shrink: 0; display: flex; align-items: center; gap: 8px; }
.setting-control .form-select { max-width: 280px; }

@media (max-width: 768px) {
  .settings-layout { flex-direction: column; }
  .settings-tabs {
    flex-direction: row;
    min-width: auto;
    border-right: none;
    border-bottom: 1px solid var(--border-primary);
    overflow-x: auto;
    padding: 0;
  }
  .settings-tab {
    border-left: none;
    border-bottom: 2px solid transparent;
    padding: 12px 16px;
    white-space: nowrap;
  }
  .settings-tab.active { border-left-color: transparent; border-bottom-color: var(--accent); }
  .settings-panel { padding: 0 12px; }
}

/* ============================================
   LOGIN OVERLAY
   ============================================ */
.login-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.login-card {
  width: 100%;
  max-width: 380px;
  padding: 40px;
  text-align: center;
}

.login-logo {
  margin-bottom: 24px;
}

.login-title {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.login-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.login-form .form-input {
  padding: 14px 16px;
  font-size: 15px;
}

/* === END OF FILE (FILENAME: /pwa/css/components.css) === */