/* ============================================
   ByeKevin - Modernes mobiles Design System
   Mobile Optimiert
   ============================================ */

.hidden { display: none; }

/* ============================================
   CSS Variables (modernes mobiles Design)
   ============================================ */
:root {
  /* Typografie (System-Font, moderne kleine Schriften) */
  --font-system: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  --font-size-body: 15px;
  --font-size-headline: 22px;
  --font-size-subhead: 17px;
  --font-size-small: 13px;
  --line-height: 1.35;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Jahreszeiten-Farben (werden dynamisch gesetzt) */
  --season-primary: #3B82F6;
  --season-secondary: #60A5FA;
  --season-accent: #ffe66d;
  --season-gradient-start: #1e40af;
  --season-gradient-end: #3B82F6;
  
  /* Glassmorphism (Blur-Effekt, Dark Mode) */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-bg-dark: rgba(0, 0, 0, 0.4);
  --glass-blur: blur(40px) saturate(180%);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
  
  /* Smooth Animationen */
  --easing-smooth: cubic-bezier(0.4, 0.0, 0.2, 1);
  --easing-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 100ms;
  --transition-normal: 250ms;
  --transition-slow: 350ms;
  
  /* Touch-Targets (Touch-Guidelines) */
  --touch-target-min: 44px;
  --border-radius-card: 12px;
  --border-radius-large: 18px;
  
  /* Safe Area (Mobile Geräte) */
  --safe-area-top: env(safe-area-inset-top, 0px);
  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
  --safe-area-left: env(safe-area-inset-left, 0px);
  --safe-area-right: env(safe-area-inset-right, 0px);
  
  /* Farben (Dark Mode) */
  --bg: #0a0a0a;
  --bg-secondary: #121212;
  --bg-gradient: radial-gradient(circle at 30% 20%, var(--season-gradient-start) 0%, var(--season-gradient-end) 15%, #0a0a0a 60%, #000000 100%);
  --fg: rgba(255, 255, 255, 0.95);
  --fg-muted: rgba(255, 255, 255, 0.65);
  --panel: var(--glass-bg);
  --muted: rgba(255, 255, 255, 0.08);
  --accent: var(--season-primary);
  --accent-subtle: rgba(59, 130, 246, 0.3);
  --error: #ff6b6b;
  --success: #51cf66;
}

/* Light Mode - Deutlich sichtbare Unterschiede */
[data-theme="light"] {
  --bg: #ffffff;
  --bg-secondary: #f5f5f7;
  --bg-gradient: linear-gradient(135deg, #f8f9fa 0%, #ffffff 30%, #f0f4f8 70%, #e8f0f5 100%);
  --fg: rgba(0, 0, 0, 0.95);
  --fg-muted: rgba(0, 0, 0, 0.65);
  --panel: #ffffff;
  --muted: rgba(0, 0, 0, 0.08);
  --glass-bg: rgba(255, 255, 255, 0.95);
  --glass-bg-dark: rgba(255, 255, 255, 0.9);
  --glass-border: rgba(0, 0, 0, 0.15);
  --glass-shadow: 0 4px 16px 0 rgba(0, 0, 0, 0.1);
  --error: #dc2626;
  --success: #16a34a;
}

[data-theme="light"] body {
  background: #ffffff !important;
  background-image: linear-gradient(135deg, #f8f9fa 0%, #ffffff 30%, #f0f4f8 70%, #e8f0f5 100%) !important;
  background-attachment: fixed !important;
  background-size: cover !important;
  background-color: #ffffff !important;
}

[data-theme="light"] .container {
  background: transparent;
}

[data-theme="light"] .card {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .btn {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.15);
  color: rgba(0, 0, 0, 0.9);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .btn.secondary {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.2);
  color: rgba(0, 0, 0, 0.9);
}

[data-theme="light"] .btn.ghost {
  background: transparent;
  border-color: rgba(0, 0, 0, 0.1);
  color: rgba(0, 0, 0, 0.7);
}

[data-theme="light"] .btn:hover {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .text-input,
[data-theme="light"] .detail-input,
[data-theme="light"] .detail-textarea,
[data-theme="light"] .detail-select,
[data-theme="light"] #modalPriority,
[data-theme="light"] #modalCategory,
[data-theme="light"] .expanded-select {
  background: #ffffff;
  color: rgba(0, 0, 0, 0.95);
  border-color: rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .detail-select option,
[data-theme="light"] #modalPriority option,
[data-theme="light"] #modalCategory option,
[data-theme="light"] .expanded-select option {
  background: #ffffff;
  color: rgba(0, 0, 0, 0.95);
}

[data-theme="light"] .text-input:focus,
[data-theme="light"] .detail-input:focus,
[data-theme="light"] .detail-textarea:focus,
[data-theme="light"] .detail-select:focus {
  border-color: var(--accent);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(46, 189, 133, 0.1);
}

[data-theme="light"] .todo-item {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .todo-item:hover {
  background: rgba(0, 0, 0, 0.02);
  border-color: rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .badge {
  background: rgba(0, 0, 0, 0.08);
  color: rgba(0, 0, 0, 0.8);
  border-color: rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .modal {
  background: rgba(0, 0, 0, 0.5);
}

[data-theme="light"] .modal-content {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .filter-btn.active {
  background: rgba(0, 0, 0, 0.1);
  color: rgba(0, 0, 0, 0.9);
  border-color: rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .bulk-actions-bar {
  background: rgba(33, 150, 243, 0.15);
  border: 1px solid rgba(33, 150, 243, 0.3);
}

[data-theme="light"] .task-counter {
  background: rgba(0, 0, 0, 0.05);
  color: rgba(0, 0, 0, 0.8);
}

[data-theme="light"] .add-task-button {
  background: #007AFF;
  color: white;
  box-shadow: 0 4px 16px rgba(0, 122, 255, 0.3);
}

[data-theme="light"] .add-task-button:active {
  box-shadow: 0 2px 8px rgba(0, 122, 255, 0.2);
}

[data-theme="light"] .todo-checkbox {
  border-color: rgba(0, 0, 0, 0.3);
}

[data-theme="light"] .todo-checkbox.checked {
  background: var(--accent);
  border-color: var(--accent);
}

[data-theme="light"] .section-header {
  color: rgba(0, 0, 0, 0.9);
}

[data-theme="light"] .section-collapsible-header {
  color: rgba(0, 0, 0, 0.7);
}

[data-theme="light"] .section-collapsible-header:hover {
  color: rgba(0, 0, 0, 0.9);
}

/* ============================================
   Base Styles
   ============================================ */
* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

body {
  background: var(--bg);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  background-size: cover;
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-system);
  font-size: var(--font-size-body);
  line-height: var(--line-height);
  font-weight: var(--font-weight-regular);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-top: var(--safe-area-top);
  padding-bottom: var(--safe-area-bottom);
  padding-left: var(--safe-area-left);
  padding-right: var(--safe-area-right);
  transition: background-image var(--transition-slow) var(--easing-smooth);
}

/* ============================================
   Container & Layout
   ============================================ */
.container {
  max-width: 428px;
  width: 100%;
  margin: 0 auto;
  padding: 20px;
  min-height: calc(100vh - var(--safe-area-top) - var(--safe-area-bottom));
  position: relative;
  z-index: 1;
}

/* ============================================
   Typography (modernes Design)
   ============================================ */
.title {
  text-align: center;
  color: var(--fg);
  font-size: var(--font-size-headline);
  font-weight: var(--font-weight-bold);
  margin-bottom: 6px;
  letter-spacing: -0.3px;
}

.subtitle {
  text-align: center;
  color: var(--fg-muted);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-regular);
  margin-top: -2px;
  margin-bottom: 20px;
}

/* ============================================
   Glassmorphism Cards (Blur-Effekt)
   ============================================ */
.card {
  background: rgba(18, 18, 18, 0.6);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-card);
  padding: 16px;
  box-shadow: var(--glass-shadow);
  transition: transform var(--transition-fast) var(--easing-smooth),
              box-shadow var(--transition-fast) var(--easing-smooth);
}

.card:active {
  transform: scale(0.98);
}

/* ============================================
   Buttons (modernes Design mit Glassmorphism)
   ============================================ */
.btn {
  width: 100%;
  min-height: var(--touch-target-min);
  padding: 12px 16px;
  font-family: var(--font-system);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-medium);
  border-radius: var(--border-radius-card);
  border: 1px solid var(--glass-border);
  background: rgba(18, 18, 18, 0.6);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  color: var(--fg);
  cursor: pointer;
  transition: all var(--transition-fast) var(--easing-smooth);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:active::before {
  width: 300px;
  height: 300px;
}

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

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

.btn.secondary {
  background: rgba(18, 18, 18, 0.5);
  color: var(--fg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.btn.ghost {
  background: rgba(18, 18, 18, 0.4);
  color: var(--fg-muted);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

/* Primary button mit subtiler Jahreszeiten-Akzent-Farbe */
.menu .btn:not(.ghost) {
  background: rgba(18, 18, 18, 0.7);
  border: 1px solid var(--glass-border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3),
              inset 0 0 0 1px rgba(255, 255, 255, 0.05);
  position: relative;
}

.menu .btn:not(.ghost)::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    var(--accent-subtle) 0%, 
    transparent 100%);
  border-radius: var(--border-radius-card);
  opacity: 0.3;
  pointer-events: none;
}

.menu .btn:not(.ghost):active {
  background: rgba(18, 18, 18, 0.8);
}

.btn-inline {
  width: auto;
  padding: 10px 16px;
  min-height: auto;
}

.menu {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
}

.menu .btn {
  font-size: var(--font-size-body);
  padding: 14px 18px;
  text-align: left;
  justify-content: flex-start;
}

.menu .icon {
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.menu .icon img {
  width: 100%;
  height: 100%;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
  stroke: currentColor;
}

/* ============================================
   Action Buttons
   ============================================ */
.action-btn {
  min-height: var(--touch-target-min);
  padding: 12px 24px;
  font-family: var(--font-system);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--border-radius-card);
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  color: var(--fg);
  cursor: pointer;
  transition: all var(--transition-fast) var(--easing-smooth);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

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

.action-btn.skip {
  background: rgba(255, 255, 255, 0.1);
  color: var(--fg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.action-btn.primary {
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.2) 0%, 
    rgba(255, 255, 255, 0.15) 100%);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.controls {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 16px;
}

/* ============================================
   Inputs (modernes Textfeld-Design)
   ============================================ */
.text-input,
textarea {
  width: 100%;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-card);
  color: var(--fg);
  padding: 12px 16px;
  font-family: var(--font-system);
  font-size: var(--font-size-body);
  transition: all var(--transition-normal) var(--easing-smooth);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.text-input:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1),
              0 0 0 3px rgba(46, 189, 133, 0.1);
}

textarea {
  margin-bottom: 12px;
  min-height: 100px;
  resize: vertical;
}

.pin-input {
  letter-spacing: 0.4em;
  text-align: center;
  font-size: 32px;
  font-weight: var(--font-weight-bold);
  padding: 16px;
}

/* ============================================
   Upload Zone
   ============================================ */
.upload-zone {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 20px;
}

.camera-btn,
.upload-btn {
  width: 72px;
  height: 72px;
  min-width: var(--touch-target-min);
  min-height: var(--touch-target-min);
  background: var(--accent);
  border-radius: var(--border-radius-large);
  border: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast) var(--easing-smooth);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.camera-btn:active,
.upload-btn:active {
  transform: scale(0.92);
}

.camera-btn svg,
.upload-btn svg {
  width: 32px;
  height: 32px;
  fill: #000;
}

/* ============================================
   Task Area
   ============================================ */
.task-area {
  min-height: 140px;
  max-height: 400px;
  overflow-y: auto;
  padding-bottom: 10px;
  -webkit-overflow-scrolling: touch;
}

.task-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 16px;
  border-radius: var(--border-radius-card);
  margin-bottom: 12px;
  border: 1px solid var(--glass-border);
  transition: all var(--transition-normal) var(--easing-smooth);
  animation: slideIn var(--transition-normal) var(--easing-smooth);
}

.task-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

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

/* ============================================
   Progress Bar
   ============================================ */
.progress-info {
  margin-bottom: 16px;
}

.progress-bar-container {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 12px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.progress-bar-fill {
  height: 100%;
  background: var(--accent);
  transition: width var(--transition-slow) var(--easing-smooth);
  width: 0%;
  border-radius: 3px;
  box-shadow: 0 0 10px rgba(46, 189, 133, 0.5);
}

.badge {
  font-size: 13px;
  font-weight: var(--font-weight-medium);
  padding: 6px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.15);
  color: var(--fg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: inline-block;
}

.badge.today {
  background: rgba(74, 222, 128, 0.2);
  color: #4ade80;
  border: 1px solid rgba(74, 222, 128, 0.3);
}

.badge.priority-high {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge.priority-medium {
  background: rgba(234, 179, 8, 0.2);
  color: #eab308;
  border: 1px solid rgba(234, 179, 8, 0.3);
}

.badge.priority-low {
  background: rgba(34, 197, 94, 0.2);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

/* Kategorie-Badges */
.badge.category-arbeit {
  background: rgba(59, 130, 246, 0.2);
  color: #3b82f6;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge.category-privat {
  background: rgba(168, 85, 247, 0.2);
  color: #a855f7;
  border: 1px solid rgba(168, 85, 247, 0.3);
}

.badge.category-einkauf {
  background: rgba(236, 72, 153, 0.2);
  color: #ec4899;
  border: 1px solid rgba(236, 72, 153, 0.3);
}

.badge.category-gesundheit {
  background: rgba(34, 197, 94, 0.2);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.badge.category-haushalt {
  background: rgba(251, 146, 60, 0.2);
  color: #fb923c;
  border: 1px solid rgba(251, 146, 60, 0.3);
}

.badge.category-finanzen {
  background: rgba(234, 179, 8, 0.2);
  color: #eab308;
  border: 1px solid rgba(234, 179, 8, 0.3);
}

.badge.category-hobby {
  background: rgba(14, 165, 233, 0.2);
  color: #0ea5e9;
  border: 1px solid rgba(14, 165, 233, 0.3);
}

.badge.category-reise {
  background: rgba(249, 115, 22, 0.2);
  color: #f97316;
  border: 1px solid rgba(249, 115, 22, 0.3);
}

.badge.category-lernen {
  background: rgba(139, 92, 246, 0.2);
  color: #8b5cf6;
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.badge.category-sonstiges {
  background: rgba(107, 114, 128, 0.2);
  color: #6b7280;
  border: 1px solid rgba(107, 114, 128, 0.3);
}

/* Überfällige Tasks */
.todo-item.overdue {
  border-left: 3px solid rgba(239, 68, 68, 0.6);
  background: rgba(239, 68, 68, 0.05);
}

.badge.overdue-badge {
  background: rgba(239, 68, 68, 0.3);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.5);
  font-weight: var(--font-weight-semibold);
}

/* ============================================
   Phases
   ============================================ */
.phase {
  margin-bottom: 24px;
  animation: fadeIn var(--transition-normal) var(--easing-smooth);
}

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

.phase-label {
  font-size: var(--font-size-subhead);
  font-weight: var(--font-weight-semibold);
  color: var(--fg);
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}

/* ============================================
   ToDo List - Modernes mobiles Design
   ============================================ */

/* Sektionen */
.section-header {
  font-size: var(--font-size-headline);
  font-weight: var(--font-weight-bold);
  color: var(--fg);
  margin-top: 24px;
  margin-bottom: 12px;
  padding: 0 4px;
  letter-spacing: -0.3px;
}

.section-collapsible {
  margin-top: 16px;
}

.section-collapsible-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 4px;
  cursor: pointer;
  user-select: none;
  color: var(--fg-muted);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast) var(--easing-smooth);
}

.section-collapsible-header:hover {
  color: var(--fg);
}

.section-collapsible-header .chevron {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-normal) var(--easing-smooth);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.section-collapsible-header.collapsed .chevron {
  transform: rotate(-90deg);
}

.section-content {
  overflow: hidden;
  transition: max-height var(--transition-normal) var(--easing-smooth);
}

.section-content.collapsed {
  max-height: 0;
  overflow: hidden;
}

.section-content:not(.collapsed) {
  max-height: 2000px;
  transition: max-height var(--transition-normal) var(--easing-smooth);
}

/* Task-Karten im modernen mobilen Design */
.todo-list {
  margin-top: 8px;
}

.todo-item {
  background: rgba(28, 28, 30, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: none;
  border-radius: 14px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  transition: all var(--transition-normal) var(--easing-smooth);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.todo-item:hover {
  background: rgba(28, 28, 30, 0.7);
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

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

.todo-title {
  font-weight: var(--font-weight-regular);
  font-size: var(--font-size-body);
  color: var(--fg);
  line-height: 1.4;
  margin-bottom: 4px;
}

.todo-item.done .todo-title {
  opacity: 0.6;
  text-decoration: line-through;
}

.todo-date {
  font-size: var(--font-size-small);
  color: #FF3B30;
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.todo-date .recurring-icon {
  width: 14px;
  height: 14px;
  opacity: 0.7;
}

/* Checkbox im modernen mobilen Design */
.todo-checkbox {
  width: 24px;
  height: 24px;
  min-width: 24px;
  min-height: 24px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  position: relative;
  transition: all var(--transition-fast) var(--easing-smooth);
  flex-shrink: 0;
  margin-top: 2px;
}

.todo-checkbox:hover {
  border-color: rgba(255, 255, 255, 0.5);
}

.todo-checkbox.checked {
  background: #007AFF;
  border-color: #007AFF;
}

.todo-checkbox.checked::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  margin-top: -2px;
}

/* Prioritäts-Stern */
.todo-priority-star {
  width: 24px;
  height: 24px;
  min-width: 24px;
  min-height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  margin-top: 2px;
  opacity: 0.3;
  transition: opacity var(--transition-fast) var(--easing-smooth);
}

.todo-priority-star:hover {
  opacity: 0.6;
}

.todo-priority-star.active {
  opacity: 1;
}

.todo-priority-star svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  stroke: currentColor;
  color: #FFD60A;
}

.todo-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.todo-actions-right {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: flex-end;
  flex-shrink: 0;
  height: 100%;
}

.todo-calendar-icon,
.todo-edit-icon,
.todo-delete-icon {
  width: 24px;
  height: 24px;
  min-width: 24px;
  min-height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  opacity: 0.7;
  transition: opacity var(--transition-fast) var(--easing-smooth);
  margin: 0;
}

.todo-calendar-icon:hover,
.todo-edit-icon:hover,
.todo-delete-icon:hover {
  opacity: 1;
}

.todo-calendar-icon.active {
  opacity: 1;
}

/* Erweiterte Task-Ansicht */
.todo-item-expanded {
  width: 100%;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) var(--easing-smooth);
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.todo-item-expanded.hidden {
  display: none;
}

.expanded-content {
  padding: 0;
}

.expanded-field {
  margin-bottom: 16px;
}

.expanded-field label {
  display: block;
  font-size: var(--font-size-small);
  color: var(--fg-muted);
  margin-bottom: 6px;
  font-weight: var(--font-weight-medium);
}

.expanded-input,
.expanded-textarea,
.expanded-select {
  width: 100%;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-card);
  color: var(--fg);
  padding: 12px 16px;
  font-family: var(--font-system);
  font-size: var(--font-size-body);
  transition: all var(--transition-normal) var(--easing-smooth);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.expanded-input:focus,
.expanded-textarea:focus,
.expanded-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1),
              0 0 0 3px rgba(46, 189, 133, 0.1);
}

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

.expanded-checkbox {
  margin-right: 8px;
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.expanded-field label:has(.expanded-checkbox) {
  display: flex;
  align-items: center;
  cursor: pointer;
}

.expanded-actions {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.expanded-save-btn,
.expanded-cancel-btn {
  flex: 1;
  padding: 12px 16px;
  border-radius: var(--border-radius-card);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast) var(--easing-smooth);
  border: 1px solid var(--glass-border);
}

.expanded-save-btn {
  background: #007AFF;
  color: white;
  border-color: #007AFF;
}

.expanded-save-btn:hover {
  background: #0056b3;
}

.expanded-cancel-btn {
  background: rgba(255, 255, 255, 0.05);
  color: var(--fg);
}

.expanded-cancel-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.expanded-display {
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--border-radius-card);
  color: var(--fg);
  font-size: var(--font-size-body);
  line-height: 1.5;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.expanded-title-display {
  font-weight: var(--font-weight-semibold);
}

.expanded-notes-display {
  min-height: 40px;
}

/* Add-Button am unteren Rand */
.todo-input-row {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

.add-task-button {
  position: fixed;
  bottom: calc(20px + var(--safe-area-bottom));
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 40px);
  max-width: 428px;
  min-height: 50px;
  background: #007AFF;
  color: white;
  border: none;
  border-radius: 14px;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 122, 255, 0.4);
  transition: all var(--transition-fast) var(--easing-smooth);
  z-index: 100;
}

.add-task-button:active {
  transform: translateX(-50%) scale(0.96);
  box-shadow: 0 2px 8px rgba(0, 122, 255, 0.3);
}

.add-task-button .plus-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: var(--font-weight-bold);
  line-height: 1;
}

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 10000;
  animation: fadeIn var(--transition-normal) var(--easing-smooth);
}

.modal-overlay.hidden {
  display: none;
}

.modal-container {
  width: 100%;
  max-width: 428px;
  background: rgba(28, 28, 30, 0.95);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border-top-left-radius: 20px;
  border-top-right-radius: 20px;
  padding-bottom: calc(20px + var(--safe-area-bottom));
  max-height: 90vh;
  overflow-y: auto;
  animation: slideInUp var(--transition-normal) var(--easing-smooth);
}

@keyframes slideInUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-cancel-btn,
.modal-add-btn {
  background: none;
  border: none;
  color: #007AFF;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  padding: 8px;
  transition: opacity var(--transition-fast) var(--easing-smooth);
}

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

.modal-title {
  font-size: var(--font-size-subhead);
  font-weight: var(--font-weight-semibold);
  color: var(--fg);
  margin: 0;
}

.modal-body {
  padding: 20px;
}

.modal-quick-actions {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 20px;
}

.quick-date-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 12px 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--fg);
  cursor: pointer;
  transition: all var(--transition-fast) var(--easing-smooth);
  font-size: var(--font-size-small);
}

.quick-date-btn:hover {
  background: rgba(255, 255, 255, 0.08);
}

.quick-date-btn.active {
  background: rgba(0, 122, 255, 0.2);
  border-color: #007AFF;
}

.quick-date-icon {
  font-size: 24px;
}

.modal-details-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  margin-top: 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--fg);
  font-size: var(--font-size-body);
  cursor: pointer;
  transition: all var(--transition-fast) var(--easing-smooth);
}

.modal-details-btn:hover {
  background: rgba(255, 255, 255, 0.08);
}

.modal-details {
  padding: 0 20px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 16px;
  padding-top: 20px;
}

.modal-details.hidden {
  display: none;
}

.detail-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.detail-row:last-child {
  border-bottom: none;
}

.detail-row span {
  font-size: var(--font-size-body);
  color: var(--fg);
}

.detail-select,
#modalPriority,
#modalCategory,
.expanded-select {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--fg);
  padding: 8px 12px;
  font-size: var(--font-size-body);
  cursor: pointer;
  min-width: 120px;
}

.detail-select option,
#modalPriority option,
#modalCategory option,
.expanded-select option {
  background: rgba(20, 20, 20, 0.95);
  color: var(--fg);
  padding: 8px;
}

/* ============================================
   Login
   ============================================ */
.login-wrap {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.small {
  font-size: 13px;
  color: var(--fg-muted);
  text-align: center;
  line-height: 1.5;
}

/* ============================================
   Error & Loading
   ============================================ */
.error-msg {
  color: var(--error);
  font-size: 14px;
  margin-top: 12px;
  text-align: center;
  padding: 12px;
  background: rgba(255, 107, 107, 0.1);
  border-radius: var(--border-radius-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.loading {
  text-align: center;
  color: var(--accent);
  padding: 16px;
  font-weight: var(--font-weight-medium);
}

/* ============================================
   Overlay (modernes Modal-Design)
   ============================================ */
#overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  z-index: 9999;
  animation: fadeIn var(--transition-normal) var(--easing-smooth);
}

#overlay.active {
  display: flex;
}

.loading-box {
  text-align: center;
  color: var(--fg);
  font-size: var(--font-size-body);
  margin-bottom: 20px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 24px;
  border-radius: var(--border-radius-card);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.progress {
  width: 200px;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 16px;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width var(--transition-slow) var(--easing-smooth);
  border-radius: 2px;
}

/* ============================================
   Backbar
   ============================================ */
.backbar {
  margin-top: 24px;
  margin-bottom: 20px;
  display: flex;
  justify-content: center;
  position: relative;
  z-index: 10;
}

.backbar a,
.backbar button {
  text-decoration: none;
}

/* ============================================
   Button Grid
   ============================================ */
.button-grid {
  display: grid;
  gap: 12px;
}

.grid-2 {
  grid-template-columns: 1fr 1fr;
}

/* ============================================
   Responsive & Safe Area
   ============================================ */
@media (max-width: 428px) {
  .container {
    padding: 16px;
  }
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Selection */
::selection {
  background: var(--accent);
  color: #000;
}

/* ============================================
   Toast-Notifications
   ============================================ */
.toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  color: var(--fg);
  padding: 14px 20px;
  border-radius: var(--border-radius-ios);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 10000;
  min-width: 250px;
  max-width: 90%;
  opacity: 0;
  transition: all 0.3s var(--easing-ios);
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.toast-icon {
  font-size: 18px;
  font-weight: bold;
  flex-shrink: 0;
}

.toast-message {
  flex: 1;
  font-size: var(--font-size-body);
  line-height: 1.4;
}

.toast-success {
  border-left: 3px solid rgba(76, 175, 80, 0.8);
}

.toast-success .toast-icon {
  color: #4caf50;
}

.toast-error {
  border-left: 3px solid rgba(239, 68, 68, 0.8);
}

.toast-error .toast-icon {
  color: #ef4444;
}

.toast-info {
  border-left: 3px solid rgba(33, 150, 243, 0.8);
}

.toast-info .toast-icon {
  color: #2196f3;
}

.toast-warning {
  border-left: 3px solid rgba(255, 193, 7, 0.8);
}

.toast-warning .toast-icon {
  color: #ffc107;
}

/* ============================================
   Skeleton-Loading (verbesserte Loading-States)
   ============================================ */
.skeleton {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.05) 0%,
    rgba(255, 255, 255, 0.1) 50%,
    rgba(255, 255, 255, 0.05) 100%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--border-radius-ios);
}

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

.skeleton-text {
  height: 16px;
  margin-bottom: 8px;
}

.skeleton-title {
  height: 24px;
  width: 60%;
  margin-bottom: 12px;
}

.skeleton-card {
  padding: 16px;
  margin-bottom: 12px;
}