/* Shared primitives from docs/hcs-hanh-chinh-so/css/app.css */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ——— Buttons ——— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--button-height);
  min-width: 44px;
  padding: 0 var(--space-4);
  border-radius: var(--button-radius);
  font-size: var(--button-font-size);
  font-weight: var(--button-font-weight);
  line-height: 1;
  transition: background-color var(--duration) var(--ease),
    color var(--duration) var(--ease),
    border-color var(--duration) var(--ease),
    box-shadow var(--duration) var(--ease),
    transform var(--duration-fast) var(--ease);
  touch-action: manipulation;
}

.btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.btn-label {
  white-space: nowrap;
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn:disabled,
.btn[aria-busy="true"] {
  opacity: 0.7;
  cursor: wait;
}

.btn-primary {
  background: var(--button-bg);
  color: var(--button-fg);
}

.btn-primary:hover:not(:disabled),
.btn-primary:active:not(:disabled) {
  background: var(--button-hover-bg);
  color: var(--button-fg);
}

.btn-outline {
  background: var(--color-white);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-outline:hover:not(:disabled),
.btn-outline:active:not(:disabled) {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.btn-outline:hover:not(:disabled) svg,
.btn-outline:active:not(:disabled) svg {
  color: var(--color-primary);
}

.btn-block {
  width: 100%;
}

a.btn-outline,
a.btn-ghost {
  color: var(--color-primary);
}

a.btn-primary {
  color: var(--color-primary-foreground);
}

.btn-sm {
  min-height: 32px;
  padding: 0 var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-sm);
}

.btn-danger {
  background: var(--color-white);
  color: var(--color-danger);
  border: 1px solid #FECACA;
}

.btn-danger:hover:not(:disabled),
.btn-danger:active:not(:disabled) {
  background: #FEF2F2;
  color: var(--color-danger);
}

.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  min-height: 44px;
  padding: 0 var(--space-3);
}

.btn-ghost:hover:not(:disabled),
.btn-ghost:active:not(:disabled) {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.btn-ghost:hover:not(:disabled) svg {
  color: var(--color-primary);
}

.icon-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: var(--radius-full);
  color: var(--color-gray-600);
  transition: background-color var(--duration) var(--ease);
}

.icon-btn:hover {
  background: var(--color-gray-100);
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ——— Form ——— */
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  font-weight: var(--font-weight-medium);
}

.input,
.select {
  width: 100%;
  height: var(--input-height);
  padding: 0 var(--space-3);
  border: 1px solid var(--input-border);
  border-radius: var(--input-radius);
  background: var(--input-bg);
  color: var(--input-fg);
  transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

textarea.input,
textarea.form-control {
  height: auto;
  min-height: 7rem;
  padding: 12px 14px;
  border-radius: var(--input-radius-multiline, var(--radius-lg));
  resize: vertical;
}

.input::placeholder {
  color: var(--input-placeholder);
}

.input:hover,
.select:hover {
  border-color: var(--hcs-input-border-hover, var(--color-gray-300));
}

.input:focus,
.select:focus {
  outline: none;
  border-color: var(--input-focus-border);
  box-shadow: var(--input-focus-ring);
}

.input.is-invalid,
.select.is-invalid {
  border-color: var(--color-danger);
}

.input:disabled,
.input[readonly] {
  background: var(--color-gray-100);
  color: var(--color-gray-500);
}

.field-error {
  display: none;
  font-size: var(--font-size-xs);
  color: var(--color-danger);
}

.field-error.is-visible {
  display: block;
}

.input-wrap {
  position: relative;
}

.input-wrap .input {
  padding-right: 44px;
}

.input-action {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  color: var(--color-gray-400);
  border-radius: var(--radius-md);
}

.input-action:hover {
  color: var(--color-gray-600);
  background: var(--color-gray-50);
}

.checkbox {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  cursor: pointer;
  min-height: 24px;
  padding: 10px 0;
  margin: -10px 0;
}

.checkbox input {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* Card */

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  padding: var(--card-padding);
}