:root {
  --bg-color: var(--tg-theme-bg-color, #090d16);
  --text-color: var(--tg-theme-text-color, #f1f5f9);
  --hint-color: var(--tg-theme-hint-color, #94a3b8);
  --button-color: var(--tg-theme-button-color, #3b82f6);
  --button-text-color: var(--tg-theme-button-text-color, #ffffff);
  --secondary-bg-color: var(--tg-theme-secondary-bg-color, #131b2e);
  --card-border-color: rgba(255, 255, 255, 0.06);
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}

/* Allow text selection specifically for descriptions and content */
.selectable-text, .selectable-text * {
  user-select: text !important;
  -webkit-user-select: text !important;
  cursor: text;
}

.select-none {
  user-select: none !important;
  -webkit-user-select: none !important;
}

/* Custom minimal scrollbar */
::-webkit-scrollbar {
  width: 3px;
  height: 3px;
}
::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.2);
  border-radius: 9999px;
}

.theme-card {
  background-color: var(--secondary-bg-color);
  border: 1px solid var(--card-border-color);
}

.theme-input {
  background-color: var(--bg-color);
  border: 1px solid var(--card-border-color);
  color: var(--text-color);
}

.theme-input:focus {
  outline: none;
  border-color: var(--button-color);
}

.btn-primary {
  background-color: var(--button-color);
  color: var(--button-text-color);
  transition: all 0.2s ease;
}

.btn-primary:active {
  transform: scale(0.98);
  opacity: 0.9;
}

/* Screen Transitions */
.screen {
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.screen.hidden {
  display: none;
  opacity: 0;
  transform: translateY(6px);
}

/* Deadline Card Minimalist Styles */
.deadline-card {
  background-color: var(--secondary-bg-color);
  border: 1px solid var(--card-border-color);
  border-radius: 14px;
  transition: background-color 0.15s ease, border-color 0.15s ease, opacity 0.2s ease;
}

.deadline-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
}

.deadline-card.is-completed {
  opacity: 0.45;
}

.deadline-card.is-important-active {
  border-left: 3px solid #f59e0b;
}

/* Accordion Expand/Collapse using CSS Grid */
.card-accordion-content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.24s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-accordion-content.is-expanded {
  grid-template-rows: 1fr;
}

.card-accordion-body {
  overflow: hidden;
}

/* Approximate / Exact Date Badge */
.date-badge {
  user-select: none;
  -webkit-user-select: none;
  transition: transform 0.15s ease, background-color 0.15s ease;
}

.date-badge:active {
  transform: scale(0.94);
}

/* Links inside description */
.selectable-text a {
  color: #60a5fa;
  text-decoration: underline;
  text-underline-offset: 2px;
  word-break: break-all;
  transition: color 0.15s ease;
}

.selectable-text a:hover {
  color: #93c5fd;
}

/* Floating Action Button */
.fab-button {
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.35);
}

/* Native datetime input styling */
input[type="datetime-local"]::-webkit-calendar-picker-indicator {
  cursor: pointer;
  filter: invert(0.8);
}

/* Easter Egg: Love Animations */
.floating-heart {
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  user-select: none;
  animation: floatLove 2.8s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

@keyframes floatLove {
  0% {
    opacity: 0;
    transform: translate(0, 0) scale(0.3) rotate(0deg);
  }
  15% {
    opacity: 1;
    transform: translate(var(--dx-mid), var(--dy-mid)) scale(var(--scale-max)) rotate(var(--rot-mid));
  }
  75% {
    opacity: 0.95;
  }
  100% {
    opacity: 0;
    transform: translate(var(--dx-end), var(--dy-end)) scale(0.6) rotate(var(--rot-end));
  }
}

@keyframes popBounce {
  0% {
    opacity: 0;
    transform: scale(0.4) translateY(25px);
  }
  50% {
    opacity: 1;
    transform: scale(1.1) translateY(-6px);
  }
  70% {
    transform: scale(0.95) translateY(2px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.love-popup-anim {
  animation: popBounce 0.45s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}