:root {
  --bg-primary: #e8ecf4;
  --bg-secondary: #e8ecf4;
  --glass-bg: rgba(255, 255, 255, 0.35);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-inner-glow: rgba(255, 255, 255, 0.4);
  --glass-shadow: rgba(31, 38, 135, 0.08);
  --glass-blur: 24px;
  --bg-hover: rgba(99, 102, 241, 0.05);
  --bg-input: rgba(255, 255, 255, 0.6);
  --bg-modal-overlay: rgba(15, 15, 30, 0.35);
  --text-primary: #1a1a2e;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border-color: rgba(255, 255, 255, 0.4);
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-light: rgba(99, 102, 241, 0.1);
  --success: #22c55e;
  --success-light: rgba(34, 197, 94, 0.1);
  --warning: #f59e0b;
  --warning-light: rgba(245, 158, 11, 0.1);
  --danger: #ef4444;
  --danger-light: rgba(239, 68, 68, 0.1);
  --over-budget: #991b1b;
  --shadow-sm: 0 1px 3px rgba(31, 38, 135, 0.06);
  --shadow-md: 0 4px 16px rgba(31, 38, 135, 0.1);
  --shadow-lg: 0 8px 32px rgba(31, 38, 135, 0.15);
  --shadow-glow: inset 0 1px 0 0 rgba(255, 255, 255, 0.5);
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --gradient-1: #667eea;
  --gradient-2: #764ba2;
  --gradient-3: #f093fb;
}

[data-theme="dark"] {
  --bg-primary: #08081a;
  --bg-secondary: #08081a;
  --glass-bg: rgba(18, 18, 38, 0.4);
  --glass-border: rgba(255, 255, 255, 0.07);
  --glass-inner-glow: rgba(255, 255, 255, 0.04);
  --glass-shadow: rgba(0, 0, 0, 0.25);
  --bg-hover: rgba(99, 102, 241, 0.08);
  --bg-input: rgba(25, 25, 50, 0.6);
  --bg-modal-overlay: rgba(0, 0, 0, 0.6);
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #475569;
  --border-color: rgba(255, 255, 255, 0.05);
  --accent: #818cf8;
  --accent-hover: #6366f1;
  --accent-light: rgba(99, 102, 241, 0.15);
  --success: #4ade80;
  --success-light: rgba(74, 222, 128, 0.1);
  --warning: #fbbf24;
  --warning-light: rgba(251, 191, 36, 0.1);
  --danger: #f87171;
  --danger-light: rgba(248, 113, 113, 0.1);
  --over-budget: #fca5a5;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.15);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-glow: inset 0 1px 0 0 rgba(255, 255, 255, 0.05);
  --gradient-1: #1a1a3e;
  --gradient-2: #0f0f2e;
  --gradient-3: #1a0a2e;
}

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

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

.bg-gradient {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse at 15% 15%, var(--gradient-1) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 85%, var(--gradient-2) 0%, transparent 55%),
    radial-gradient(ellipse at 55% 5%, var(--gradient-3) 0%, transparent 45%),
    radial-gradient(ellipse at 80% 20%, rgba(99, 102, 241, 0.3) 0%, transparent 40%),
    var(--bg-secondary);
  opacity: 0.45;
  transition: opacity var(--transition);
}

[data-theme="dark"] .bg-gradient {
  opacity: 0.65;
}

.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md), var(--shadow-glow);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.8rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  margin: 0 0.5rem;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.app-header h1 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--accent), var(--gradient-3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.reminder-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--danger);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  min-width: 1.2rem;
  height: 1.2rem;
  border-radius: 9999px;
  padding: 0 0.3rem;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.reminder-badge.hidden {
  display: none;
}

.header-actions {
  display: flex;
  gap: 0.25rem;
}

.app-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem 1.5rem 2rem;
}

/* Budget Section */
.budget-section {
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.25rem;
  margin-bottom: 1.25rem;
}

.budget-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.85rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.budget-info h2 {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.15rem;
}

.budget-status {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition);
}

.budget-status.under-budget {
  color: var(--success);
}

.budget-status.near-budget {
  color: var(--warning);
}

.budget-status.over-budget {
  color: var(--danger);
  font-weight: 600;
}

.budget-input-group {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.budget-currency {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}

#budget-input {
  width: 80px;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  transition: border-color var(--transition), box-shadow var(--transition);
}

#budget-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

#budget-input::-webkit-inner-spin-button,
#budget-input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

#budget-input[type=number] {
  -moz-appearance: textfield;
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.78rem;
}

.budget-bar-container {
  width: 100%;
  height: 8px;
  background: var(--bg-hover);
  border-radius: 9999px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.budget-bar {
  height: 100%;
  border-radius: 9999px;
  background: var(--success);
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1), background 0.4s ease;
  position: relative;
}

.budget-bar.warn {
  background: var(--warning);
}

.budget-bar.danger {
  background: var(--danger);
}

.budget-bar.critical {
  background: var(--over-budget);
}

.budget-details {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Toolbar */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 1.25rem;
}

.search-bar {
  flex: 1;
  min-width: 200px;
  position: relative;
}

.search-icon {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1rem;
  height: 1rem;
  color: var(--text-muted);
  pointer-events: none;
  transition: color var(--transition);
}

.search-bar input {
  width: 100%;
  padding: 0.65rem 2.5rem 0.65rem 2.5rem;
  border: 1px solid var(--glass-border);
  border-radius: 9999px;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.search-bar input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
  background: var(--bg-input);
}

.search-bar input:focus ~ .search-icon {
  color: var(--accent);
}

.search-clear {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: var(--bg-hover);
  color: var(--text-secondary);
  font-size: 1rem;
  border-radius: 50%;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  line-height: 1;
}

.search-clear:hover {
  background: var(--accent-light);
  color: var(--accent);
}

.search-clear.hidden {
  display: none;
}

.filter-tabs {
  display: flex;
  gap: 0.2rem;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 0.2rem;
  border-radius: 9999px;
  border: 1px solid var(--glass-border);
}

.filter-tab {
  padding: 0.4rem 0.85rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  border-radius: 9999px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), transform 0.15s ease;
}

.filter-tab:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.filter-tab.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.quick-add {
  display: flex;
  gap: 0.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1rem;
  border: none;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform 0.15s ease, box-shadow var(--transition);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.96);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.25);
}

.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  transform: translateY(-1px);
}

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

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

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), transform 0.15s ease;
}

.icon-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  transform: scale(1.05);
}

.icon {
  width: 1.15rem;
  height: 1.15rem;
}

.icon-sm {
  width: 0.9rem;
  height: 0.9rem;
}

/* Dashboard */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.card {
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-full {
  grid-column: 1 / -1;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.card-header h2 {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  min-width: 1.4rem;
  height: 1.4rem;
  border-radius: 9999px;
  padding: 0 0.35rem;
}

.task-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.task-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-hover);
  transition: background var(--transition), border-color var(--transition), transform 0.2s ease, opacity 0.3s ease;
  animation: taskSlideIn 0.3s ease;
}

@keyframes taskSlideIn {
  from { opacity: 0; transform: translateY(-0.5rem); }
  to { opacity: 1; transform: translateY(0); }
}

.task-item.removing {
  animation: taskSlideOut 0.25s ease forwards;
}

@keyframes taskSlideOut {
  to { opacity: 0; transform: translateX(1rem) scale(0.95); height: 0; padding: 0; margin: 0; overflow: hidden; }
}

.task-item:hover {
  background: var(--bg-hover);
  border-color: var(--glass-border);
}

.task-item.completed {
  opacity: 0.55;
}

.task-item.completed .task-title-text {
  text-decoration: line-through;
  color: var(--text-muted);
}

.task-checkbox {
  flex-shrink: 0;
  width: 1.3rem;
  height: 1.3rem;
  margin-top: 0.05rem;
  border: 2px solid var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), border-color var(--transition), transform 0.2s ease;
}

.task-checkbox:hover {
  border-color: var(--accent);
  transform: scale(1.1);
}

.task-checkbox.checked {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
  animation: checkPop 0.3s ease;
}

@keyframes checkPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.25); }
  100% { transform: scale(1); }
}

.task-checkbox.checked::after {
  content: "";
  width: 0.45rem;
  height: 0.3rem;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg) translateY(-0.05rem);
}

.task-content {
  flex: 1;
  min-width: 0;
}

.task-title-text {
  font-weight: 500;
  font-size: 0.88rem;
  word-break: break-word;
}

.task-title-text mark {
  background: rgba(99, 102, 241, 0.25);
  color: inherit;
  border-radius: 2px;
  padding: 0 1px;
}

.task-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.3rem;
  font-size: 0.72rem;
  color: var(--text-secondary);
}

.task-notes {
  color: var(--text-secondary);
  font-size: 0.78rem;
  margin-top: 0.25rem;
  word-break: break-word;
}

.task-notes mark {
  background: rgba(99, 102, 241, 0.25);
  color: inherit;
  border-radius: 2px;
  padding: 0 1px;
}

.task-recurring-badge {
  display: inline-block;
  padding: 0.1rem 0.4rem;
  background: var(--warning-light);
  color: var(--warning);
  border-radius: var(--radius-sm);
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.task-overdue {
  color: var(--danger);
  font-weight: 600;
}

.task-today {
  color: var(--accent);
  font-weight: 600;
}

.task-actions {
  display: flex;
  gap: 0.15rem;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity var(--transition);
}

.task-item:hover .task-actions {
  opacity: 1;
}

.empty-state {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.empty-state.hidden {
  display: none;
}

.hidden {
  display: none !important;
}

/* Subscriptions */
.subs-summary {
  display: flex;
  gap: 2rem;
  padding: 0.75rem 0;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.summary-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.summary-label {
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.summary-value {
  font-size: 1.15rem;
  font-weight: 700;
}

.subs-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.75rem;
}

.sub-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-hover);
  transition: background var(--transition), border-color var(--transition), transform 0.2s ease;
  animation: taskSlideIn 0.3s ease;
}

.sub-item:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.sub-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.sub-name {
  font-weight: 600;
  font-size: 0.88rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sub-meta {
  font-size: 0.72rem;
  color: var(--text-secondary);
}

.sub-cost {
  font-weight: 700;
  font-size: 0.95rem;
  white-space: nowrap;
  color: var(--accent);
}

.sub-actions {
  display: flex;
  gap: 0.15rem;
  margin-left: 0.5rem;
  opacity: 0;
  transition: opacity var(--transition);
}

.sub-item:hover .sub-actions {
  opacity: 1;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-modal-overlay);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 1rem;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal {
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 440px;
  animation: modalSlideUp 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalSlideUp {
  from { opacity: 0; transform: translateY(1.5rem) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  font-size: 1rem;
  font-weight: 700;
}

.modal-body {
  padding: 1.25rem;
}

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

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

/* Toasts */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 300;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.85rem;
  max-width: 320px;
  pointer-events: auto;
  animation: toastSlideIn 0.3s ease;
}

@keyframes toastSlideIn {
  from { opacity: 0; transform: translateX(2rem) scale(0.95); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

.toast.toast-exit {
  animation: toastSlideOut 0.25s ease forwards;
}

@keyframes toastSlideOut {
  to { opacity: 0; transform: translateX(2rem) scale(0.95); }
}

.toast.toast-warning {
  border-left: 3px solid var(--warning);
}

.toast.toast-info {
  border-left: 3px solid var(--accent);
}

.toast.toast-success {
  border-left: 3px solid var(--success);
}

/* Responsive */
@media (max-width: 768px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-tabs {
    align-self: flex-start;
  }

  .quick-add {
    justify-content: stretch;
  }

  .quick-add .btn {
    flex: 1;
  }

  .budget-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .subs-summary {
    flex-direction: column;
    gap: 0.75rem;
  }

  .subs-list {
    grid-template-columns: 1fr;
  }

  .task-actions,
  .sub-actions {
    opacity: 1;
  }
}

@media (max-width: 480px) {
  .app-header {
    padding: 0.75rem 1rem;
    margin: 0;
    border-radius: 0;
  }

  .app-header h1 {
    font-size: 1.05rem;
  }

  .app-main {
    padding: 1rem;
  }

  .card {
    padding: 1rem;
  }

  .budget-section {
    padding: 1rem;
  }

  .modal {
    max-width: 100%;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}