/* dzcv - Main Styles */

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f5;
  --bg-tertiary: #ebebeb;
  --bg-card: #ffffff;
  --bg-input: #f5f5f5;
  --bg-hover: #f0f0f0;
  --bg-overlay: rgba(0, 0, 0, 0.4);
  --bg-blur: rgba(255, 255, 255, 0.85);
  --text-primary: #1a1a1a;
  --text-secondary: #666666;
  --text-tertiary: #999999;
  --text-inverse: #ffffff;
  --border-color: #e0e0e0;
  --border-light: #f0f0f0;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-light: #dbeafe;
  --danger: #dc2626;
  --danger-light: #fee2e2;
  --success: #16a34a;
  --success-light: #dcfce7;
  --warning: #d97706;
  --warning-light: #fef3c7;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition: 0.2s ease;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

[data-theme="dark"] {
  --bg-primary: #0a0a0a;
  --bg-secondary: #141414;
  --bg-tertiary: #1e1e1e;
  --bg-card: #141414;
  --bg-input: #1e1e1e;
  --bg-hover: #1e1e1e;
  --bg-overlay: rgba(0, 0, 0, 0.7);
  --bg-blur: rgba(10, 10, 10, 0.85);
  --text-primary: #f0f0f0;
  --text-secondary: #999999;
  --text-tertiary: #666666;
  --text-inverse: #1a1a1a;
  --border-color: #2a2a2a;
  --border-light: #1e1e1e;
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --accent-light: #1e3a5f;
  --danger-light: #3b1111;
  --success-light: #0f3d1f;
  --warning-light: #3d2b0f;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: var(--bg-blur);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 100;
  transition: background var(--transition);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 4px;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

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

.icon-btn:active {
  transform: scale(0.95);
}

/* Sidebar */
#sidebar {
  position: fixed;
  top: 0;
  left: -280px;
  width: 280px;
  height: 100vh;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  z-index: 200;
  display: flex;
  flex-direction: column;
  transition: left 0.3s ease;
}

#sidebar.open {
  left: 0;
}

#sidebar-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  z-index: 199;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

#sidebar-overlay.visible {
  opacity: 1;
  visibility: visible;
}

.sidebar-header {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.sidebar-nav {
  list-style: none;
  padding: 8px;
  flex: 1;
  overflow-y: auto;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}

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

.nav-link.active {
  background: var(--accent-light);
  color: var(--accent);
}

.nav-divider {
  height: 1px;
  background: var(--border-color);
  margin: 8px 16px;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
}

/* Main content */
#main-content {
  margin-top: 56px;
  padding-bottom: 72px;
  min-height: calc(100vh - 56px);
}

#page-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 16px;
}

/* Bottom navigation */
#bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: var(--bg-blur);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 100;
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px 12px;
  color: var(--text-tertiary);
  text-decoration: none;
  font-size: 10px;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: color var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.bottom-nav-item.active {
  color: var(--accent);
}

.bottom-nav-item:active {
  transform: scale(0.92);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  padding: 16px;
}

.modal-overlay.visible {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 480px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: transform 0.2s ease;
}

.modal-overlay.visible .modal-container {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  font-size: 16px;
  font-weight: 600;
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 400;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}

.toast {
  background: var(--bg-card);
  color: var(--text-primary);
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards;
  white-space: nowrap;
}

.toast.error {
  border-color: var(--danger);
}

.toast.success {
  border-color: var(--success);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(-10px); }
}

/* Page title */
.page-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.page-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 12px;
  transition: box-shadow var(--transition);
}

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

.card-title {
  font-size: 16px;
  font-weight: 600;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), transform 0.1s ease;
  font-family: var(--font);
  -webkit-tap-highlight-color: transparent;
}

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

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

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

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

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

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

.btn-danger:hover {
  background: #b91c1c;
}

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

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

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-block {
  width: 100%;
}

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

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

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

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

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

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

.input-wrapper {
  position: relative;
}

.input-wrapper .form-input {
  padding-right: 44px;
}

.input-toggle {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.input-toggle:hover {
  background: var(--bg-hover);
}

textarea.form-input {
  resize: vertical;
  min-height: 80px;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.5;
}

.prefix-badge {
  display: inline-flex;
  align-items: center;
  padding: 1px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.6;
  margin-right: 4px;
}

/* Frozen indicator */
.frozen-indicator::before {
  content: '\2744';
  margin-right: 4px;
  font-size: 12px;
}

/* Blur overlay for restricted content */
.restricted-overlay {
  position: relative;
  filter: blur(8px);
  pointer-events: none;
  user-select: none;
}

.restricted-message {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-overlay);
  border-radius: var(--radius-lg);
  z-index: 1;
}

.restricted-message-content {
  text-align: center;
  padding: 24px;
}

.restricted-message-content p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-tertiary);
}

.empty-state svg {
  margin-bottom: 12px;
  opacity: 0.5;
}

.empty-state p {
  font-size: 14px;
}

/* Checkbox */
.checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.checkbox input {
  display: none;
}

.checkbox-mark {
  width: 22px;
  height: 22px;
  border: 2px solid var(--border-color);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.checkbox input:checked + .checkbox-mark {
  background: var(--accent);
  border-color: var(--accent);
}

.checkbox-mark svg {
  opacity: 0;
  transform: scale(0.5);
  transition: all 0.2s ease;
  color: white;
}

.checkbox input:checked + .checkbox-mark svg {
  opacity: 1;
  transform: scale(1);
}

/* Strikethrough animation */
.strikethrough {
  position: relative;
}

.strikethrough::after {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 0;
  height: 2px;
  background: var(--text-tertiary);
  transition: width 0.4s ease;
}

.strikethrough.completed::after {
  width: 100%;
}

.strikethrough-text {
  transition: color 0.4s ease;
}

.strikethrough.completed .strikethrough-text {
  color: var(--text-tertiary);
}

/* Skeleton loading */
.skeleton {
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-hover) 50%, var(--bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* User avatar */
.avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.avatar-sm {
  width: 28px;
  height: 28px;
  font-size: 12px;
}

.avatar-lg {
  width: 64px;
  height: 64px;
  font-size: 24px;
}

/* Tab bar */
.tab-bar {
  display: flex;
  gap: 4px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: 3px;
  margin-bottom: 16px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tab-bar::-webkit-scrollbar {
  display: none;
}

.tab-item {
  padding: 8px 16px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
  font-family: var(--font);
}

.tab-item.active {
  background: var(--bg-card);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

/* Dropdown */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 160px;
  z-index: 50;
  padding: 4px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all 0.15s ease;
}

.dropdown-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(4px);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 13px;
  width: 100%;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
  font-family: var(--font);
}

.dropdown-item:hover {
  background: var(--bg-hover);
}

.dropdown-item.danger {
  color: var(--danger);
}

/* Responsive */
@media (min-width: 768px) {
  #bottom-nav {
    display: none;
  }

  #main-content {
    padding-bottom: 24px;
  }

  .page-title {
    font-size: 28px;
  }
}

@media (max-width: 767px) {
  #page-container {
    padding: 12px;
  }

  .card {
    padding: 14px;
  }
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

/* Selection */
::selection {
  background: var(--accent-light);
  color: var(--text-primary);
}

/* Focus visible */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Transitions */
.fade-in {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.slide-in {
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-8px); }
  to { opacity: 1; transform: translateX(0); }
}