/**
 * Polkadot Utilities Styles
 * Card-based grid layout for encoding, hashing, and address utility tools.
 * All selectors scoped under .md-typeset to beat Material MkDocs specificity.
 */

/* ============================================================
   TOOLS GRID
   ============================================================ */

.md-typeset .pu-tools-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.875rem;
  margin: 0 0 1rem;
}

@media (max-width: 768px) {
  .md-typeset .pu-tools-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   TOOL CARD
   ============================================================ */

.md-typeset .pu-tool-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--rounded);
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* ============================================================
   TOOL HEADER
   ============================================================ */

.md-typeset .pu-tool-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.md-typeset h3.pu-tool-title {
  font-size: 0.75rem;
  font-weight: 600;
  margin: 0;
  line-height: 1.3;
  color: var(--color-text-primary);
}

.md-typeset .pu-direction-badge {
  font-size: 0.5rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.4rem;
  border-radius: var(--rounded-sm);
  white-space: nowrap;
  flex-shrink: 0;
}

.md-typeset .pu-direction-badge.pu-bidirectional {
  background: rgba(var(--accent-default-rgb, 255, 40, 103), 0.1);
  color: var(--accent-default);
  border: 1px solid rgba(var(--accent-default-rgb, 255, 40, 103), 0.25);
}

.md-typeset .pu-direction-badge.pu-unidirectional {
  background: var(--color-surface-secondary);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

/* ============================================================
   IO AREA
   ============================================================ */

.md-typeset .pu-io-area {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.md-typeset .pu-field-group {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.md-typeset .pu-field-label {
  font-size: 0.55rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  line-height: 1.2;
}

.md-typeset .pu-field-hint {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--color-text-tertiary);
}

.md-typeset .pu-tag {
  display: inline-block;
  font-size: 0.45rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.15rem 0.3rem;
  border-radius: var(--rounded-sm);
  background: var(--color-surface-secondary);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  vertical-align: middle;
  margin-left: 0.2rem;
}

/* ============================================================
   INPUTS
   ============================================================ */

.md-typeset input.pu-input {
  width: 100%;
  margin: 0;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--rounded-sm);
  font-size: 0.625rem;
  font-family: var(--md-code-font);
  color: var(--color-text-primary);
  background: var(--color-surface-secondary);
  line-height: 1.5;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  box-sizing: border-box;
}

.md-typeset input.pu-input::placeholder {
  color: var(--color-text-tertiary);
}

.md-typeset input.pu-input:hover {
  border-color: var(--color-border-strong);
  background: var(--color-surface);
}

.md-typeset input.pu-input:focus {
  outline: none;
  border-color: var(--accent-default);
  background: var(--color-surface);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.md-typeset input.pu-input.error {
  border-color: var(--error);
}

.md-typeset input.pu-output-field {
  cursor: default;
}

.md-typeset input.pu-input-sm {
  width: 5rem;
}

/* ============================================================
   INPUT WITH COPY BUTTON
   ============================================================ */

.md-typeset .pu-input-with-copy {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.md-typeset .pu-input-with-copy .pu-input {
  flex: 1;
  min-width: 0;
}

/* ============================================================
   OPTIONS ROW
   ============================================================ */

.md-typeset .pu-options-row {
  display: flex;
  align-items: flex-end;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.md-typeset .pu-option {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.md-typeset .pu-option-checkbox {
  flex-direction: row;
  align-items: center;
  gap: 0.3rem;
  padding-bottom: 0.1rem;
}

.md-typeset .pu-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.6rem;
  color: var(--color-text-primary);
  cursor: pointer;
  white-space: nowrap;
}

.md-typeset input.pu-checkbox {
  width: auto;
  margin: 0;
  padding: 0;
  cursor: pointer;
  accent-color: var(--accent-default);
}

/* ============================================================
   SELECT
   ============================================================ */

.md-typeset select.pu-select {
  margin: 0;
  padding: 0.3rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--rounded-sm);
  font-size: 0.625rem;
  font-family: var(--md-code-font);
  color: var(--color-text-primary);
  background: var(--color-surface-secondary);
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.md-typeset select.pu-select:hover {
  border-color: var(--color-border-strong);
}

.md-typeset select.pu-select:focus {
  outline: none;
  border-color: var(--accent-default);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* ============================================================
   COPY BUTTON
   ============================================================ */

.md-typeset button.pu-copy-btn {
  position: relative;
  flex-shrink: 0;
  width: 1.75rem;
  height: 1.75rem;
  margin: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--rounded-sm);
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.md-typeset button.pu-copy-btn:hover,
.md-typeset button.pu-copy-btn.copied {
  background: var(--accent-default);
  border-color: var(--accent-default);
}

.md-typeset button.pu-copy-btn:hover svg,
.md-typeset button.pu-copy-btn.copied svg {
  stroke: var(--white);
}

.md-typeset button.pu-copy-btn:active {
  transform: scale(0.96);
}

.md-typeset .pu-copy-icon,
.md-typeset .pu-check-icon {
  width: 0.7rem;
  height: 0.7rem;
  stroke: var(--color-text-primary);
  transition: stroke 0.15s ease;
  flex-shrink: 0;
}

.md-typeset button.pu-copy-btn .pu-check-icon {
  display: none;
}

.md-typeset button.pu-copy-btn.copied .pu-copy-icon {
  display: none;
}

.md-typeset button.pu-copy-btn.copied .pu-check-icon {
  display: block;
}

.md-typeset .pu-copy-feedback {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 0.5rem;
  padding: 0.375rem 0.75rem;
  background: var(--accent-default);
  color: var(--white);
  font-size: 0.65rem;
  white-space: nowrap;
  border-radius: var(--rounded);
  display: none;
  pointer-events: none;
  box-shadow: 0 2px 8px rgba(255, 40, 103, 0.35);
}

.md-typeset .pu-copy-feedback::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -0.375rem;
  border: 0.375rem solid transparent;
  border-top-color: var(--accent-default);
}

.md-typeset button.pu-copy-btn.copied .pu-copy-feedback {
  display: block;
}

/* ============================================================
   ERROR
   ============================================================ */

.md-typeset .pu-tool-error {
  background: rgba(220, 38, 38, 0.08);
  border-left: 3px solid var(--error);
  padding: 0.375rem 0.5rem;
  margin-top: 0.25rem;
  font-size: 0.6rem;
  border-radius: var(--rounded-sm);
  color: var(--error);
  display: none;
  line-height: 1.4;
}

.md-typeset .pu-tool-error.show {
  display: block;
}

/* ============================================================
   MOBILE
   ============================================================ */

@media (max-width: 640px) {
  .md-typeset .pu-tool-card {
    padding: 0.625rem;
  }

  .md-typeset h3.pu-tool-title {
    font-size: 0.7rem;
  }

  .md-typeset input.pu-input-sm {
    width: 4rem;
  }

  .md-typeset .pu-options-row {
    gap: 0.5rem;
  }
}