/* ── Overlay ──────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgb(0 0 0 / 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

/* ── Modal box ────────────────────────────────────────────────── */
.modal-box {
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  width: 100%;
  max-width: 520px;
  max-height: calc(100vh - var(--space-8));
  overflow-y: auto;
  transform: scale(0.95) translateY(8px);
  transition: transform var(--transition-slow) var(--ease-spring);
}

.modal-overlay.open .modal-box {
  transform: scale(1) translateY(0);
}

/* ── Modal header ─────────────────────────────────────────────── */
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.modal-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
}

.modal-close {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text);
}

.modal-close svg {
  width: 18px;
  height: 18px;
}

/* ── Modal body ───────────────────────────────────────────────── */
.modal-body {
  padding: var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* ── Modal footer ─────────────────────────────────────────────── */
.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
}

.modal-footer-left {
  margin-right: auto;
}

/* ── Form ─────────────────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:hover,
.form-textarea:hover,
.form-select:hover {
  border-color: var(--color-border-hover);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
  line-height: 1.6;
}

/* ── Color picker ─────────────────────────────────────────────── */
.color-picker {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.color-option {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  border: 2.5px solid transparent;
  cursor: pointer;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.color-option:hover {
  transform: scale(1.15);
}

.color-option.selected {
  border-color: var(--color-text);
  transform: scale(1.1);
}

.color-option.selected::after {
  content: '';
  display: block;
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.8);
}

.color-option[data-color="blue"]   { background: var(--task-blue-dot); }
.color-option[data-color="green"]  { background: var(--task-green-dot); }
.color-option[data-color="red"]    { background: var(--task-red-dot); }
.color-option[data-color="orange"] { background: var(--task-orange-dot); }
.color-option[data-color="purple"] { background: var(--task-purple-dot); }
.color-option[data-color="gray"]   { background: var(--task-gray-dot); }
.color-option[data-color="pink"]   { background: var(--task-pink-dot); }
.color-option[data-color="yellow"] { background: var(--task-yellow-dot); }

/* ── Confirm dialog ───────────────────────────────────────────── */
.confirm-box {
  max-width: 400px;
}

.confirm-message {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ── Import dialog ────────────────────────────────────────────── */
.import-box {
  max-width: 460px;
}

.import-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.import-option {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.import-option:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.import-option.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.import-option-radio {
  width: 18px;
  height: 18px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-border);
  flex-shrink: 0;
  margin-top: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-fast);
}

.import-option.selected .import-option-radio {
  border-color: var(--color-primary);
  background: var(--color-primary);
}

.import-option.selected .import-option-radio::after {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: white;
  display: block;
}

.import-option-label {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
}

.import-option-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ── Settings modal ───────────────────────────────────────────── */
.settings-box {
  max-width: 460px;
}

.settings-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.settings-section-title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-1);
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  gap: var(--space-4);
}

.settings-row-label {
  font-size: var(--font-size-base);
  color: var(--color-text);
}

/* ── Toggle switch ────────────────────────────────────────────── */
.toggle {
  position: relative;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.toggle-track {
  position: absolute;
  inset: 0;
  background: var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background-color var(--transition-base);
}

.toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  background: white;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-base) var(--ease-spring);
}

.toggle input:checked ~ .toggle-track {
  background: var(--color-primary);
}

.toggle input:checked ~ .toggle-thumb {
  transform: translateX(20px);
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 640px) {
  .modal-box {
    max-width: 100%;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  }
  .modal-overlay {
    align-items: flex-end;
    padding: 0;
  }
  .modal-overlay.open .modal-box {
    transform: scale(1) translateY(0);
  }
}

/* ── Settings credits / footer ───────────────────────────────── */
.settings-credits {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.settings-credits-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.settings-credits-sep {
  color: var(--color-border);
}

.settings-credits a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}

.settings-credits a:hover {
  text-decoration: underline;
}