/* ========================================
   Theme Variables
======================================== */
:root {
  --bg: #f8f9fc;
  --card-bg: #fffdfb;
  --text: #1a202c;
  --list-bg: #e5e7eb;
  --button-bg: #3A0CA3;
  --button-text: #ffffff;
  --input-bg: #e5e7eb;
  --delete-btn: #e53935;
}

body.dark {
  --bg: #1e1e2f;
  --card-bg: #2e2e3e;
  --text: #f5f5f5;
  --list-bg: #3a3a4d;
  --button-bg: #6C63FF;
  --button-text: #ffffff;
  --input-bg: #44455a;
  --delete-btn: #ff6b6b;
}

/* ========================================
   Reset & Base
======================================== */
* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  overflow-x: hidden;
}

.container {
  text-align: center;
  width: 100%;
  padding: 1.5rem;
}

h1 {
  color: var(--button-bg);
  margin-bottom: 20px;
  font-size: 2.5rem;
  letter-spacing: 1px;
}

/* Dark Mode Toggle Button */
.theme-toggle {
  position: absolute;
  top: 20px;
  right: 30px;
  background-color: var(--button-bg);
  color: var(--button-text);
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  cursor: pointer;
  font-weight: bold;
  z-index: 999;
  transition: background-color 0.3s ease;
}

.theme-toggle:hover {
  background-color: #5f27cd;
}

/* ========================================
   Board Layout
======================================== */
.board {
  display: flex;
  justify-content: space-around;
  align-items: flex-start;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  gap: 25px;
  flex-wrap: wrap;
}

/* Colorful List Themes */
#list1 {
  background-color: #BDE0FE;
}
#list2 {
  background-color: #FFF3B0;
}
#list3 {
  background-color: #C8FACC;
}

.list {
  background-color: var(--list-bg);
  padding: 1rem;
  border-radius: 12px;
  width: 30%;
  min-width: 280px;
  min-height: 450px;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
  transition: background-color 0.3s ease;
}

.list h2 {
  color: var(--button-bg);
  margin-bottom: 1rem;
  font-size: 1.4rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ========================================
   Cards
======================================== */
.card {
  position: relative;
  background-color: var(--card-bg);
  color: var(--text);
  padding: 1rem;
  margin-bottom: 12px;
  border-radius: 8px;
  cursor: grab;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  animation: fadeIn 0.3s ease;
}

.card:active {
  cursor: grabbing;
  transform: scale(1.03);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.card:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.12);
}

/* Priority Variants */
.card.low {
  background-color: #D4EDDA;
  border-left: 5px solid #28a745;
  color: var(--text);
}

.card.medium {
  background-color: #FFF3CD;
  border-left: 5px solid #ffc107;
  color: var(--text);
}

.card.high {
  background-color: #F8D7DA;
  border-left: 5px solid #dc3545;
  color: var(--text);
}


/* Highlighted Drop Area */
.list.over {
  border: 2px dashed var(--button-bg);
}

/* ========================================
   Card Creator
======================================== */
.add-card {
  margin-top: 15px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 10px;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.add-card input.card-input {
  padding: 10px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  background-color: var(--input-bg);
  color: var(--text);
  outline: none;
  transition: box-shadow 0.2s ease;
}

.add-card input.card-input:focus {
  box-shadow: 0 0 0 2px var(--button-bg);
}

.add-card button.add-btn {
  padding: 10px;
  background-color: var(--button-bg);
  color: var(--button-text);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.add-card button.add-btn:hover {
  background-color: #5F27CD;
}

.add-card select.card-priority {
  padding: 10px;
  border-radius: 6px;
  background-color: var(--input-bg);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
  font-size: 14px;
  color: var(--text);
  border: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg%20viewBox='0%200%204%205'%20xmlns='http://www.w3.org/2000/svg'%3E%3Cpath%20d='M2%200L0%202h4L2%200z'%20fill='%23000'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 8px;
}

/* ========================================
   Delete Button
======================================== */
.delete-btn {
  position: absolute;
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
  font-size: 14px;
  background-color: transparent;
  border: none;
  color: var(--delete-btn);
  cursor: pointer;
  font-weight: bold;
  user-select: none;
  transition: transform 0.2s ease;
}

.delete-btn:hover {
  transform: translateY(-50%) scale(1.3);
}

/* ========================================
   Animation & Responsive
======================================== */
@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@media (max-width: 768px) {
  .board {
    flex-direction: column;
    align-items: center;
  }

  .list {
    width: 90%;
    margin-bottom: 20px;
  }
}
/* ========================================
   Dark Mode Priority Fix
======================================== */
body.dark .card.low {
  background-color: #1f3d2b;      /* dark green */
  border-left: 5px solid #2ecc71;
  color: #e6fff2;
}

body.dark .card.medium {
  background-color: #3d341f;      /* dark yellow/brown */
  border-left: 5px solid #f1c40f;
  color: #fff7d6;
}

body.dark .card.high {
  background-color: #3d1f1f;      /* dark red */
  border-left: 5px solid #e74c3c;
  color: #ffe6e6;
}


/* Modal Base */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

/* Hidden class */
.hidden {
  display: none;
}

/* Modal Content */
.modal-content {
  background-color: var(--card-bg);
  color: var(--text);
  width: 90%;
  max-width: 500px;
  padding: 1.5rem;
  border-radius: 12px;
  position: relative;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.modal-content h2 {
  margin-bottom: 1rem;
  font-size: 1.5rem;
  border-bottom: 1px solid var(--input-bg);
  padding-bottom: 0.5rem;
}

.modal-content textarea {
  width: 100%;
  height: 120px;
  margin-bottom: 1rem;
  padding: 10px;
  font-size: 14px;
  border: none;
  border-radius: 8px;
  background-color: var(--input-bg);
  color: var(--text);
  resize: vertical;
}

.modal-content button {
  padding: 10px 16px;
  background-color: var(--button-bg);
  color: var(--button-text);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: bold;
}

.modal-content button:hover {
  background-color: #5f27cd;
}

.close-btn {
  position: absolute;
  top: 12px;
  right: 14px;
  font-size: 20px;
  cursor: pointer;
  color: var(--delete-btn);
}