:root {
  --primary: #2563eb;
  --success: #059669;
  --danger: #dc2626;
  --bg-body: #f8fafc;
  --bg-card: #ffffff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --gap: 16px;
  --col-bg: #f1f5f9;
  --input-bg: #ffffff;
}

[data-theme="dark"] {
  --primary: #3b82f6;
  --success: #10b981;
  --danger: #ef4444;
  --bg-body: #0f172a;
  --bg-card: #1e293b;
  --text-main: #e2e8f0;
  --text-muted: #94a3b8;
  --border-color: #334155;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
  --col-bg: #1e293b;
  --input-bg: #1e293b;
}

/* --- Global Reset & Base --- */
* {
  box-sizing: border-box;
}

body {
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    sans-serif;
  line-height: 1.6;
  background-color: var(--bg-body);
  color: var(--text-main);
  padding: 0;
  margin: 0;
}

.toolbar {
  display: flex;
  border-radius: 12px;
  flex-direction: column;
  box-shadow: var(--shadow);
}

.task-controls,
.column-controls {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  padding-left: 8px;
  padding-bottom: 8px;
}

input[type="text"],
select {
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 0.95rem;
  background-color: var(--input-bg);
  color: var(--text-main);
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
  outline: none;
}

input[type="text"]:focus,
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

[data-theme="dark"] select option {
  background-color: #1e293b;
  color: #e2e8f0;
}

button {
  padding: 10px 20px;
  cursor: pointer;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition:
    background 0.2s,
    transform 0.1s;
}

button:hover {
  filter: brightness(90%);
}

button:active {
  transform: translateY(1px);
}

#addBtn,
#addColBtn {
  background: var(--success);
}

.board {
  display: flex;
  gap: var(--gap);
  align-items: flex-start;
  flex-wrap: wrap;
  padding: 20px;
}

.col-title {
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card {
  background: var(--bg-card);
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
  margin-bottom: 10px;
  cursor: grab;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: border-color 0.1s ease-in-out;
  border-left: 5px solid var(--primary);
}

.card:hover {
  border-color: var(--primary);
}

.btn-small {
  background: none;
  color: var(--danger);
  font-weight: bold;
  padding: 2px 6px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.column {
  flex: 1 1 280px;
  min-width: 280px;
  max-width: 100%;
  background: var(--col-bg);
  padding: 15px;
  border-radius: 12px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
  border: 1px solid transparent;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.column:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
  /* blue */
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}

.card:hover .btn-small,
.column:hover .col-title .btn-small {
  opacity: 1;
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
  transition:
    transform 0.2s ease,
    border-color 0.2s ease;
}

footer {
  padding: 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-buttons {
  display: flex;
  gap: 10px;
  margin-bottom: 15px;
  flex-wrap: wrap;
}

#resetBtn {
  background: var(--danger);
}

.c-red {
  background-color: #fee2e2;
  border-left-color: #ef4444;
}

[data-theme="dark"] .c-red {
  background-color: rgba(239, 68, 68, 0.15);
}

.c-green {
  background-color: #dcfce7;
  border-left-color: #22c55e;
}

[data-theme="dark"] .c-green {
  background-color: rgba(34, 197, 94, 0.15);
}

.c-blue {
  background-color: #e0f2fe;
  border-left-color: #3b82f6;
}

[data-theme="dark"] .c-blue {
  background-color: rgba(59, 130, 246, 0.15);
}

.c-yellow {
  background-color: #fef3c7;
  border-left-color: #f59e0b;
}

[data-theme="dark"] .c-yellow {
  background-color: rgba(245, 158, 11, 0.15);
}

#importBtn {
  background: var(--success);
}

@media (max-width: 620px) {
  .board {
    flex-direction: column;
    align-items: stretch;
    padding: 10px;
  }

  .column {
    flex: 1 1 auto;
    max-height: none;
    width: 100%;
  }

  .toolbar {
    padding: 0 10px;
  }
}

/* --- Updated Logo Styles --- */

.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.site-logo {
  height: 40px; /* Scaled to match the previous design */
  width: auto;
  border-radius: 4px;
  animation: pulseGlow 3s infinite; /* Adds the pulsing effect */
  filter: brightness(1.2) drop-shadow(0 0 3px rgba(255, 255, 255, 0.6));
  display: block;
  object-fit: contain;
}

@keyframes pulseGlow {
  0%, 100% {
    filter: brightness(1.1) drop-shadow(0 0 2px rgba(255, 255, 255, 0.4));
  }
  50% {
    filter: brightness(1.3) drop-shadow(0 0 8px rgba(255, 255, 255, 0.8));
  }
}

.logo-text {
  font-size: 1.2rem; /* Adjusted from 1.8rem to match previous size */
  letter-spacing: 0.5px;
  font-weight: 600;
  color: #f8fafc; /* Use the light color from the previous nav theme */
  margin: 0;
}

/* Ensure the header background doesn't clash with the light text */
.site-header {
  background-color: #1e293b;
  padding: 15px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .site-header {
  background-color: #0f172a;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0 20px;
}

#darkModeToggle {
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #f8fafc;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 6px 12px;
  border-radius: 8px;
  transition: background 0.2s;
}

#darkModeToggle:hover {
  background: rgba(255, 255, 255, 0.1);
}