/*
 * ALUPROM component library v1.0
 * Reusable interface components. Layout for the documentation portal lives
 * in styleguide.css.
 */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color: var(--color-foreground);
  font-family: var(--font-body);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-background);
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

svg {
  display: block;
}

.skip-link {
  position: fixed;
  z-index: calc(var(--z-modal) + 1);
  top: var(--space-4);
  left: var(--space-4);
  padding: var(--space-3) var(--space-4);
  color: var(--color-on-primary);
  background: var(--color-primary);
  border-radius: var(--radius-control);
  transform: translateY(-160%);
  transition: transform var(--duration-micro) var(--ease-standard);
}

.skip-link:focus {
  transform: translateY(0);
}

.button {
  min-height: var(--control-height);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0 var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  font-family: var(--font-heading);
  font-size: var(--text-small);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition:
    color var(--duration-micro) var(--ease-standard),
    background-color var(--duration-micro) var(--ease-standard),
    border-color var(--duration-micro) var(--ease-standard),
    transform var(--duration-micro) var(--ease-standard);
}

.button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.button:active:not(:disabled) {
  transform: translateY(0);
}

.button:disabled {
  opacity: 0.46;
  cursor: not-allowed;
}

.button--primary {
  color: var(--color-on-primary);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.button--primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.button--primary:active:not(:disabled) {
  background: var(--color-primary-active);
  border-color: var(--color-primary-active);
}

.button--secondary {
  color: var(--color-ink);
  background: transparent;
  border-color: var(--color-border);
}

.button--secondary:hover:not(:disabled) {
  color: var(--color-primary);
  background: var(--color-primary-soft);
  border-color: #b8cce6;
}

.button--tertiary {
  min-height: var(--touch-target-min);
  padding-inline: 0;
  color: var(--color-primary);
  background: transparent;
}

.button--tertiary:hover:not(:disabled) {
  color: var(--color-primary-hover);
}

.button--light {
  color: var(--color-primary);
  background: var(--color-white);
  border-color: var(--color-white);
}

.button--compact {
  min-height: var(--touch-target-min);
  padding-inline: var(--space-4);
}

.button--loading {
  pointer-events: none;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgb(255 255 255 / 40%);
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

.icon-button {
  width: var(--touch-target-min);
  height: var(--touch-target-min);
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  padding: 0;
  color: var(--color-ink);
  background: transparent;
  border: var(--border-default);
  border-radius: var(--radius-control);
  cursor: pointer;
  transition:
    color var(--duration-micro) var(--ease-standard),
    background var(--duration-micro) var(--ease-standard),
    border-color var(--duration-micro) var(--ease-standard);
}

.icon-button:hover {
  color: var(--color-primary);
  background: var(--color-primary-soft);
  border-color: #b8cce6;
}

.icon-button svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.field {
  display: grid;
  gap: var(--space-2);
}

.field__label {
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-size: var(--text-small);
  font-weight: var(--font-weight-semibold);
}

.field__control {
  width: 100%;
  min-height: var(--control-height-mobile);
  padding: 0 var(--space-4);
  color: var(--color-ink);
  background: var(--color-white);
  border: var(--border-default);
  border-radius: var(--radius-control);
  outline: 0;
  transition:
    border-color var(--duration-micro) var(--ease-standard),
    box-shadow var(--duration-micro) var(--ease-standard);
}

.field__control::placeholder {
  color: #87939c;
}

.field__control:hover {
  border-color: #a8b4bd;
}

.field__control:focus {
  border-color: var(--color-focus);
  box-shadow: var(--focus-ring);
}

.field__select {
  appearance: none;
  padding-right: 48px;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--color-ink) 50%),
    linear-gradient(135deg, var(--color-ink) 50%, transparent 50%);
  background-position:
    calc(100% - 20px) 50%,
    calc(100% - 15px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
}

.field__hint,
.field__error {
  margin: 0;
  font-size: var(--text-small);
  line-height: var(--leading-small);
}

.field__hint {
  color: var(--color-text-secondary);
}

.field__error {
  display: none;
  color: var(--color-error);
}

.field.is-invalid .field__control {
  border-color: var(--color-error);
}

.field.is-invalid .field__error {
  display: block;
}

.check {
  min-height: var(--touch-target-min);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-secondary);
  font-size: var(--text-small);
  cursor: pointer;
}

.check input {
  position: absolute;
  opacity: 0;
}

.check__box {
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: var(--color-white);
  background: var(--color-white);
  border: var(--border-default);
  border-radius: 2px;
}

.check__box svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0;
}

.check input:checked + .check__box {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.check input:checked + .check__box svg {
  opacity: 1;
}

.check input:focus-visible + .check__box {
  box-shadow: var(--focus-ring);
}

.status {
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0 var(--space-3);
  color: var(--color-text-secondary);
  background: var(--color-white);
  border: var(--border-default);
  border-radius: var(--radius-pill);
  font-size: var(--text-label);
  font-weight: var(--font-weight-medium);
}

.status__dot {
  width: 7px;
  height: 7px;
  background: currentColor;
  border-radius: 50%;
}

.status--success {
  color: var(--color-success);
}

.tabs__list {
  display: flex;
  gap: var(--space-1);
  overflow-x: auto;
  border-bottom: var(--border-default);
}

.tabs__tab {
  min-height: var(--control-height);
  position: relative;
  padding: 0 var(--space-4);
  white-space: nowrap;
  color: var(--color-text-secondary);
  background: transparent;
  border: 0;
  font-family: var(--font-heading);
  font-size: var(--text-small);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
}

.tabs__tab::after {
  content: "";
  position: absolute;
  right: var(--space-4);
  bottom: -1px;
  left: var(--space-4);
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--duration-micro) var(--ease-standard);
}

.tabs__tab:hover,
.tabs__tab.is-active {
  color: var(--color-primary);
}

.tabs__tab.is-active::after {
  transform: scaleX(1);
}

.tabs__panel {
  padding: var(--space-6) 0;
}

.alert {
  min-height: 96px;
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5, 1.25rem);
  border: 1px solid;
  border-radius: var(--radius-card);
}

.alert > svg {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.alert strong {
  display: block;
  margin-bottom: var(--space-1);
  font-family: var(--font-heading);
}

.alert p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--text-small);
  line-height: var(--leading-small);
}

.alert--info {
  color: var(--color-primary);
  background: var(--color-primary-soft);
  border-color: #bed0e8;
}

.alert--success {
  color: var(--color-success);
  background: #edf8f2;
  border-color: #b9ddcb;
}

.alert--error {
  color: var(--color-error);
  background: #fff1ef;
  border-color: #efc0ba;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-size: var(--text-small);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
}

.text-link:hover {
  color: var(--color-primary-hover);
}

.technical-label {
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: var(--text-label);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}

.technical-label--light {
  color: #b8d4ff;
}

.engineering-frame {
  position: relative;
}

.engineering-frame::before,
.engineering-frame::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  pointer-events: none;
}

.engineering-frame::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid currentColor;
  border-left: 2px solid currentColor;
}

.engineering-frame::after {
  right: -1px;
  bottom: -1px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
}

.engineering-frame__label {
  position: absolute;
  z-index: 1;
  top: var(--space-4);
  left: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: var(--tracking-label);
}

.accordion details {
  border-bottom: var(--border-default);
}

.accordion summary {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  list-style: none;
}

.accordion summary::-webkit-details-marker {
  display: none;
}

.accordion summary span {
  width: 18px;
  height: 18px;
  position: relative;
  flex: 0 0 auto;
}

.accordion summary span::before,
.accordion summary span::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 1.5px;
  background: currentColor;
  transform: translate(-50%, -50%);
  transition: transform var(--duration-micro) var(--ease-standard);
}

.accordion summary span::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.accordion details[open] summary span::after {
  transform: translate(-50%, -50%) rotate(0);
}

.accordion details p {
  max-width: var(--container-reading);
  margin: 0;
  padding: 0 48px var(--space-6) 0;
  color: var(--color-text-secondary);
  line-height: var(--leading-body);
}

.modal {
  width: min(560px, calc(100% - 32px));
  padding: 0;
  color: var(--color-ink);
  background: transparent;
  border: 0;
}

.modal::backdrop {
  background: rgb(16 24 32 / 70%);
  backdrop-filter: blur(3px);
}

.modal__surface {
  padding: var(--space-8);
  background: var(--color-white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-raised);
}

.modal__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-6);
}

.modal h2 {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  letter-spacing: var(--tracking-heading);
}

.modal__surface > p {
  margin: var(--space-4) 0 var(--space-6);
  color: var(--color-text-secondary);
  line-height: var(--leading-body);
}

.modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

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

@media (max-width: 47.9375rem) {
  .button {
    min-height: var(--control-height-mobile);
  }

  .modal__surface {
    padding: var(--space-6);
  }

  .modal__actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}