:root {
  /* Base Colors - From Palette */
  --primary-blue: #1300c0;
  --primary-blue-dark: #0d0080;
  --primary-blue-light: #1a00ff;
  --primary-blue-transparent: rgba(19, 0, 192, 0.05);

  --surface-white: #ffffff;
  --surface-lavender: #e4e8ff;
  --surface-lavender-dark: #d1d8ff;
  --surface-lavender-darker: #b8bfff;

  --text-black: #232324;
  --text-grey: #6b6b6c;
  --text-grey-light: #9a9a9b;
  --text-white: #ffffff;

  --accent-pink: #ffccd9;
  --accent-pink-dark: #ffabc2;
  --accent-pink-darker: #ff8aa7;

  --accent-mint: #72f5c3;
  --accent-mint-dark: #4fe8b3;
  --accent-mint-darker: #2cdba3;

  /* Priority Colors - Using Palette Variants */
  --priority-high: #ffabc2;
  --priority-medium: #b8bfff;
  --priority-low: #72f5c3;

  /* Semantic Colors */
  --border-color: #232324;
  --border-light: #e4e8ff;
  --border-input: #d1d8ff;

  /* Shadow Colors */
  --shadow-sm: rgba(35, 35, 36, 0.1);
  --shadow-md: rgba(35, 35, 36, 0.15);
  --shadow-lg: rgba(35, 35, 36, 0.2);

  /* Status Colors - Using Pink for Error, Mint for Success */
  --status-error-bg: #ffccd9;
  --status-error-text: #232324;
  --status-error-border: #ffabc2;
  --status-success-bg: #72f5c3;
  --status-success-text: #232324;
  --status-success-border: #4fe8b3;
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Outfit", sans-serif;
  background-color: var(--surface-lavender);
  color: var(--text-black);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

.mono-text {
  font-family: "Martian Mono", monospace;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.header {
  text-align: center;
  margin-bottom: 30px;
}

.header h1 {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--text-black);
  margin: 0 0 10px 0;
}

.header p {
  font-size: 1rem;
  color: var(--text-grey);
  margin: 0;
}

.kanban-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 768px) {
  .kanban-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.kanban-column {
  background-color: var(--surface-white);
  box-shadow: 0 4px 6px var(--shadow-sm);
  min-height: 500px;
}

.column-header {
  background-color: var(--primary-blue);
  color: var(--text-white);
  padding: 20px;
}

.column-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 5px 0;
}

.column-header p {
  font-size: 0.875rem;
  opacity: 0.9;
  margin: 0;
}

.column-content {
  padding: 20px;
}

.task-input-section {
  margin-bottom: 20px;
}

.task-input {
  width: 100%;
  padding: 12px;
  border: 2px solid var(--border-light);
  font-family: "Martian Mono", monospace;
  font-size: 1rem;
  margin-bottom: 10px;
}

.task-input:focus {
  border-color: var(--primary-blue);
  outline: none;
}

.add-task-btn {
  width: 100%;
  padding: 12px;
  background-color: var(--surface-lavender);
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
  font-family: "Martian Mono", monospace;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.add-task-btn:hover {
  background-color: var(--surface-lavender-dark);
}

.drop-zone {
  min-height: 100px;
  border: 2px dashed transparent;
}

.drop-zone.drag-over {
  border-color: var(--primary-blue);
  background-color: var(--primary-blue-transparent);
}

.task-card {
  background-color: var(--surface-white);
  border: 2px solid var(--border-color);
  box-shadow: 0 2px 4px var(--shadow-sm);
  padding: 15px;
  padding-left: 35px;
  margin-bottom: 15px;
  cursor: move;
  position: relative;
  overflow: hidden;
}

.task-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 20px;
  background-color: var(--primary-blue);
}

.task-card:hover {
  box-shadow: 0 4px 8px var(--shadow-md);
}

.task-card.dragging {
  opacity: 0.5;
}

.task-text {
  font-size: 1.125rem;
  font-weight: 500;
  word-wrap: break-word;
  overflow-wrap: break-word;
  margin-bottom: 15px;
  padding-right: 30px;
}

.task-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.task-controls {
  display: flex;
  gap: 8px;
}

.task-date {
  font-size: 0.75rem;
  color: var(--text-grey);
}

.delete-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  color: var(--text-grey-light);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.delete-btn:hover {
  color: var(--accent-pink-darker);
}

.priority-select,
.move-select {
  font-family: "Martian Mono", monospace;
  font-size: 0.75rem;
  border: 1px solid var(--border-input);
  background: var(--surface-white);
  color: var(--text-black);
  padding: 4px 6px;
  cursor: pointer;
}

.priority-high::before {
  background-color: var(--priority-high);
}

.priority-medium::before {
  background-color: var(--priority-medium);
}

.priority-low::before {
  background-color: var(--priority-low);
}

/* Authentication styles */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-card {
  background-color: var(--surface-white);
  box-shadow: 0 4px 6px var(--shadow-sm);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.auth-card h1 {
  font-size: 2rem;
  font-weight: bold;
  color: var(--text-black);
  margin: 0 0 10px 0;
}

.auth-subtitle {
  color: var(--text-grey);
  margin: 0 0 30px 0;
}

.auth-form {
  text-align: left;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 500;
  color: var(--text-black);
}

.auth-input {
  width: 100%;
  padding: 12px;
  border: 2px solid var(--border-light);
  font-family: "Martian Mono", monospace;
  font-size: 1rem;
  box-sizing: border-box;
}

.auth-input:focus {
  border-color: var(--primary-blue);
  outline: none;
}

.auth-btn {
  width: 100%;
  padding: 12px;
  background-color: var(--surface-lavender);
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
  font-family: "Martian Mono", monospace;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 20px;
}

.auth-btn:hover {
  background-color: var(--surface-lavender-dark);
}

.auth-links {
  text-align: center;
}

.auth-links a {
  color: var(--primary-blue);
  text-decoration: none;
}

.auth-links a:hover {
  text-decoration: underline;
}

.error-message {
  display: none;
  padding: 10px;
  margin-top: 15px;
  text-align: center;
}

.error-message.show {
  display: block;
}

.error-message.error {
  background-color: var(--status-error-bg);
  color: var(--status-error-text);
  border: 1px solid var(--status-error-border);
}

.error-message.success {
  background-color: var(--status-success-bg);
  color: var(--status-success-text);
  border: 1px solid var(--status-success-border);
}

.logout-btn {
  display: block;
  margin: 40px auto;
  padding: 12px 20px;
  background-color: var(--surface-lavender);
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
  font-family: "Martian Mono", monospace;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
}

.logout-btn:hover {
  background-color: var(--surface-lavender-dark);
}

/* Video embed styles */
.video-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  margin: 25px 0;
  background-color: var(--surface-lavender);
  border: 2px solid var(--border-color);
  box-shadow: 0 4px 6px var(--shadow-sm);
  overflow: hidden;
}

.demo-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* Mobile optimizations */
@media (max-width: 767px) {
  .container {
    padding: 15px;
  }

  .header h1 {
    font-size: 2rem;
  }

  .kanban-column {
    min-height: 400px;
  }

  .column-header {
    padding: 15px;
  }

  .column-content {
    padding: 15px;
  }

  .task-card {
    padding: 12px;
    padding-left: 35px;
    margin-bottom: 12px;
  }

  .task-actions {
    gap: 6px;
  }

  .priority-select,
  .move-select {
    font-size: 0.7rem;
    padding: 4px 5px;
  }

  .auth-container {
    padding: 15px;
  }

  .auth-card {
    padding: 30px 20px;
  }

  .logout-btn {
    margin: 20px 15px;
  }

  .kanban-grid {
    gap: 15px;
  }
}