/* Parametric tools - full-viewport app shell (see /tools) */

.site-main--tools {
  padding: 0;
  overflow: hidden;
  /* Tools is a fixed-viewport app - do not inherit marketing page zoom */
  zoom: 1;
  height: calc(100dvh - var(--site-header-height));
  max-height: calc(100dvh - var(--site-header-height));
  min-height: calc(100dvh - var(--site-header-height));
}

.tool-app {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  background: var(--color-bg, #faf9f7);
  color: var(--color-text-body);
}

.tool-app--centered {
  align-items: center;
  justify-content: center;
  padding: 2rem var(--space-page-x, 1.5rem);
  text-align: center;
}

.tool-app__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem 2rem;
  flex-shrink: 0;
  padding: 0.85rem clamp(1rem, 2.5vw, 2.5rem);
  border-bottom: 1px solid rgba(75, 65, 53, 0.12);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
}

.tool-app__header-copy {
  min-width: 0;
}

.tool-app__eyebrow {
  margin: 0 0 0.2rem;
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: var(--font-weight-semibold, 600);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-section-label);
}

.tool-app__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 400;
  line-height: 1.15;
  color: var(--color-text-heading);
}

.tool-app__subtitle {
  margin: 0.35rem 0 0;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  line-height: 1.45;
  color: var(--color-text-muted);
  max-width: 48rem;
}

.tool-app__header-meta {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.tool-app__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tool-app__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  border: 1px solid rgba(75, 65, 53, 0.14);
  background: #fff;
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.6875rem;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.tool-app__badge--busy {
  border-color: rgba(232, 93, 4, 0.35);
  color: var(--accent-orange);
}

.tool-status {
  flex-shrink: 0;
  margin: 0;
  padding: 0.65rem clamp(1rem, 2.5vw, 2.5rem);
  border-bottom: 1px solid transparent;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
}

.tool-status--error {
  background: rgba(176, 32, 32, 0.08);
  border-bottom-color: rgba(176, 32, 32, 0.18);
  color: #7a1212;
}

.tool-status--warning {
  background: rgba(232, 93, 4, 0.08);
  border-bottom-color: rgba(232, 93, 4, 0.18);
  color: #8a3b00;
}

.tool-status__title {
  font-weight: var(--font-weight-semibold, 600);
  margin-bottom: 0.35rem;
}

.tool-status__list {
  margin: 0;
  padding-left: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.tool-app__workspace {
  display: grid;
  grid-template-columns: minmax(15rem, 18.5rem) minmax(0, 1fr) minmax(15rem, 20rem);
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.tool-app__sidebar {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  border-right: 1px solid rgba(75, 65, 53, 0.1);
  background: #fff;
}

.tool-sidebar__inputs-body {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.tool-sidebar__inputs-body .tool-panel--inputs {
  flex: 1;
  min-height: 0;
}

.tool-app__solve-bar {
  flex-shrink: 0;
  padding: 0.75rem 0.9rem 0.9rem;
  border-top: 1px solid rgba(75, 65, 53, 0.12);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, #fff 100%);
  box-shadow: 0 -4px 16px rgba(75, 65, 53, 0.06);
}

.tool-app__solve-bar--mobile {
  display: none;
}

.tool-solve-bar__btn {
  width: 100%;
  min-height: 2.85rem;
  font-size: 0.9375rem;
  font-weight: var(--font-weight-semibold, 600);
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: 0 4px 14px rgba(232, 93, 4, 0.28);
}

.tool-solve-bar__btn:disabled {
  opacity: 0.72;
  box-shadow: none;
}

.tool-solve-bar__hint {
  margin: 0.45rem 0 0;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  line-height: 1.35;
  color: var(--color-text-muted);
  text-align: center;
}

.tool-solve-bar__spinner {
  width: 1rem;
  height: 1rem;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: tool-solve-spin 0.75s linear infinite;
}

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

.tool-input-group {
  border: 1px solid rgba(75, 65, 53, 0.12);
  border-radius: var(--radius-sm, 6px);
  background: rgba(255, 255, 255, 0.88);
  overflow: hidden;
}

.tool-input-group + .tool-input-group,
.tool-input-group + .tool-input,
.tool-input + .tool-input-group {
  margin-top: 0.15rem;
}

.tool-input-group__header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.55rem 0.65rem;
  border: 0;
  background: rgba(75, 65, 53, 0.05);
  cursor: pointer;
  font-family: var(--font-sans);
  text-align: left;
}

.tool-input-group__title {
  font-size: 0.75rem;
  font-weight: var(--font-weight-semibold, 600);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-heading);
}

.tool-input-group__chevron {
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: transform 0.2s ease;
}

.tool-input-group__chevron--open {
  transform: rotate(180deg);
}

.tool-input-group__body {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 0.7rem 0.65rem 0.8rem;
}

.tool-modal__text--formatted {
  white-space: pre-wrap;
}

.tool-formatted-text__bold {
  font-weight: var(--font-weight-semibold, 600);
}

.tool-formatted-text__italic {
  font-style: italic;
}

.tool-formatted-text__color {
  /* color applied via inline style */
}

.tool-output__value .tool-formatted-text__bold,
.tool-output__value .tool-formatted-text__italic,
.tool-output__value .tool-formatted-text__color {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

.tool-app__sidebar--outputs {
  border-right: 0;
  border-left: 1px solid rgba(75, 65, 53, 0.1);
  background: rgba(75, 65, 53, 0.03);
}

.tool-app__viewport {
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: #f4f4f2;
}

.tool-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  padding: 0.85rem 0.9rem 1rem;
}

.tool-panel__label {
  flex-shrink: 0;
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: var(--font-weight-semibold, 600);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-section-label);
  margin: 0 0 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(75, 65, 53, 0.1);
}

.tool-panel__scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 0.15rem;
  scrollbar-gutter: stable;
}

.tool-panel__empty {
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  margin: 0;
}

.tool-input-list,
.tool-output-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.tool-input {
  padding-bottom: 0.15rem;
}

.tool-input--has-optimize .tool-input__optimize {
  margin-bottom: 0.4rem;
}

.tool-toggle--optimize {
  font-size: 0.8125rem;
  font-weight: var(--font-weight-semibold, 600);
  color: var(--color-text-heading);
}

.tool-toggle--optimize .tool-toggle__label {
  letter-spacing: 0.01em;
}

.tool-input__range-row--readonly .tool-input__range {
  opacity: 0.72;
  cursor: not-allowed;
}

.tool-input__range-row--readonly .tool-input__value {
  color: var(--color-text-heading);
  font-weight: var(--font-weight-semibold, 600);
}

.tool-input__label {
  display: block;
  font-family: var(--font-sans);
  font-weight: var(--font-weight-semibold, 600);
  color: var(--color-text-heading);
  font-size: 0.8125rem;
  line-height: 1.3;
  margin-bottom: 0.35rem;
}

.tool-input__text,
.tool-input__select {
  width: 100%;
  box-sizing: border-box;
  padding: 0.45rem 0.55rem;
  border: 1px solid rgba(75, 65, 53, 0.22);
  border-radius: var(--radius-sm, 4px);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text-body);
  background: #fff;
}

.tool-input__text:focus,
.tool-input__select:focus {
  outline: 2px solid var(--accent-orange);
  outline-offset: 1px;
}

.tool-input__range-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tool-input__range {
  flex: 1;
  accent-color: var(--accent-orange);
  height: 1.25rem;
}

.tool-input__value {
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  min-width: 2.25rem;
  text-align: right;
}

.tool-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text-body);
  cursor: pointer;
}

.tool-panel--outputs .tool-output {
  padding: 0.55rem 0.6rem;
  border-radius: var(--radius-sm, 4px);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(75, 65, 53, 0.08);
}

.tool-output__label {
  font-family: var(--font-sans);
  font-weight: var(--font-weight-semibold, 600);
  font-size: 0.75rem;
  color: var(--color-text-heading);
  margin-bottom: 0.25rem;
}

.tool-output__value {
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.75rem;
  line-height: 1.45;
  color: var(--color-text-body);
  white-space: pre-wrap;
  word-break: break-word;
}

.tool-output__value-color {
  font-weight: var(--font-weight-semibold, 600);
}

.tool-output__value-bold {
  font-weight: var(--font-weight-bold, 700);
}

.tool-viewport {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #f4f4f2;
}

.tool-viewport__canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.tool-viewport__spinner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding: 0.75rem 1rem;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 60%, rgba(255, 255, 255, 0.35));
}

.tool-viewport__spinner-text {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: var(--font-weight-semibold, 600);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-heading);
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(75, 65, 53, 0.12);
}

.tool-offline {
  text-align: center;
  padding: 2rem 1rem;
  max-width: 36rem;
}

.tool-offline__title {
  font-family: var(--font-serif);
  color: var(--color-text-heading);
  font-size: 1.5rem;
  margin: 0 0 0.75rem;
}

.tool-offline__text {
  font-family: var(--font-sans);
  color: var(--color-text-body);
  margin: 0 0 1.5rem;
}

.tool-offline__actions {
  display: flex;
  justify-content: center;
}

@media (max-width: 1100px) {
  .tool-app__workspace {
    grid-template-columns: minmax(13rem, 16rem) minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr) minmax(11rem, 28vh);
    grid-template-areas:
      "inputs viewport"
      "outputs outputs";
  }

  .tool-app__sidebar--inputs {
    grid-area: inputs;
  }

  .tool-app__viewport {
    grid-area: viewport;
  }

  .tool-app__sidebar--outputs {
    grid-area: outputs;
    border-left: 0;
    border-top: 1px solid rgba(75, 65, 53, 0.1);
  }

  .tool-app__header {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .site-main--tools {
    height: calc(100svh - var(--site-header-height));
    max-height: calc(100svh - var(--site-header-height));
    min-height: calc(100svh - var(--site-header-height));
  }

  .tool-app__header {
    padding: 0.55rem 0.85rem;
    gap: 0.35rem;
  }

  .tool-app__title {
    font-size: 1.125rem;
  }

  .tool-app__subtitle {
    display: none;
  }

  .tool-app__workspace {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(0, 1.05fr) minmax(0, 0.82fr) auto minmax(0, 0.72fr);
    grid-template-areas:
      "viewport"
      "inputs"
      "solvebar"
      "outputs";
    flex: 1;
    min-height: 0;
  }

  .tool-app__sidebar--inputs {
    grid-area: inputs;
    border: 0;
    border-top: 1px solid rgba(75, 65, 53, 0.1);
  }

  .tool-app__sidebar--outputs {
    grid-area: outputs;
    border: 0;
    border-top: 1px solid rgba(75, 65, 53, 0.1);
  }

  .tool-app__viewport {
    grid-area: viewport;
  }

  .tool-app__solve-bar--sidebar {
    display: none;
  }

  .tool-app__solve-bar--mobile {
    display: block;
    grid-area: solvebar;
    padding: 0.65rem 0.75rem;
    border-top: 1px solid rgba(75, 65, 53, 0.1);
    border-bottom: 1px solid rgba(75, 65, 53, 0.1);
  }

  .tool-panel {
    padding: 0.65rem 0.75rem 0.75rem;
  }

  .tool-app__solve-bar--sidebar .tool-solve-bar__hint {
    display: none;
  }
}

/* ---- Icon buttons (header + viewport) ---- */
.tool-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid rgba(75, 65, 53, 0.18);
  background: #fff;
  color: var(--color-text-heading);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.tool-icon-btn:hover {
  background: var(--color-text-heading);
  color: #fff;
  border-color: var(--color-text-heading);
}

.tool-icon-btn:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}

.tool-icon-btn:active {
  transform: translateY(1px);
}

.tool-app__cta {
  min-width: 0;
  padding: 0.5rem 1.1rem;
  font-size: 0.8125rem;
  white-space: nowrap;
}

/* ---- Viewport floating toolbar ---- */
.tool-viewport-toolbar {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 5;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.tool-icon-btn--viewport {
  position: relative;
  width: 2.4rem;
  height: 2.4rem;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
}

.tool-icon-btn--alert {
  border-color: rgba(176, 32, 32, 0.4);
  color: #b02020;
}

.tool-icon-btn--alert:hover {
  background: #b02020;
  color: #fff;
  border-color: #b02020;
}

.tool-icon-btn__count {
  position: absolute;
  top: -0.35rem;
  right: -0.35rem;
  min-width: 1.05rem;
  height: 1.05rem;
  padding: 0 0.25rem;
  border-radius: 999px;
  background: #b02020;
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.625rem;
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1.05rem;
  text-align: center;
}

/* ---- Modal ---- */
.tool-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background: rgba(31, 27, 22, 0.55);
  backdrop-filter: blur(3px);
  animation: tool-modal-fade 0.16s ease;
}

@keyframes tool-modal-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

.tool-modal__panel {
  width: 100%;
  max-width: 34rem;
  max-height: min(85vh, 44rem);
  display: flex;
  flex-direction: column;
  background: var(--color-bg, #fff);
  border-radius: var(--radius-sm, 8px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  overflow: hidden;
  animation: tool-modal-rise 0.18s ease;
}

@keyframes tool-modal-rise {
  from { transform: translateY(12px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.tool-modal__panel--share { max-width: 28rem; }
.tool-modal__panel--errors { max-width: 36rem; }

.tool-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid rgba(75, 65, 53, 0.12);
}

.tool-modal__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-text-heading);
}

.tool-modal__close {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border: 0;
  border-radius: var(--radius-sm, 6px);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.tool-modal__close:hover {
  background: rgba(75, 65, 53, 0.08);
  color: var(--color-text-heading);
}

.tool-modal__body {
  padding: 1.25rem;
  overflow-y: auto;
}

.tool-modal__text {
  margin: 0 0 0.85rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-text-body);
}

.tool-modal__text--muted {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.tool-modal__text:last-child { margin-bottom: 0; }

.tool-modal__footer {
  margin-top: 1.25rem;
  display: flex;
  justify-content: flex-end;
}

.tool-modal__cta {
  min-width: 0;
  padding: 0.55rem 1.5rem;
}

.tool-modal__errors {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.tool-modal__errors li {
  padding: 0.65rem 0.8rem;
  border-radius: var(--radius-sm, 6px);
  background: rgba(176, 32, 32, 0.07);
  border: 1px solid rgba(176, 32, 32, 0.16);
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.8125rem;
  line-height: 1.45;
  color: #7a1212;
  word-break: break-word;
}

/* ---- Share popup ---- */
.tool-share__url {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.1rem;
}

.tool-share__url input {
  flex: 1;
  min-width: 0;
  padding: 0.55rem 0.7rem;
  border: 1px solid rgba(75, 65, 53, 0.22);
  border-radius: var(--radius-sm, 6px);
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.8125rem;
  color: var(--color-text-body);
  background: rgba(75, 65, 53, 0.03);
}

.tool-share__copy {
  min-width: 0;
  padding: 0.5rem 1rem;
  flex-shrink: 0;
}

.tool-share__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(4.5rem, 1fr));
  gap: 0.6rem;
}

.tool-share__option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 0.5rem;
  border: 1px solid rgba(75, 65, 53, 0.16);
  border-radius: var(--radius-sm, 6px);
  background: #fff;
  color: var(--color-text-body);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.1s ease, background 0.15s ease;
}

.tool-share__option:hover {
  border-color: var(--accent-orange);
  background: rgba(246, 99, 62, 0.06);
  transform: translateY(-1px);
}

.tool-share__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  background: var(--color-text-heading);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: var(--font-weight-semibold, 600);
}

@media (max-width: 768px) {
  .tool-app__cta {
    padding: 0.45rem 0.9rem;
    font-size: 0.75rem;
  }

  .tool-icon-btn {
    width: 2.1rem;
    height: 2.1rem;
  }

  .tool-viewport-toolbar {
    top: 0.5rem;
    right: 0.5rem;
  }

  .tool-modal {
    padding: 0;
    align-items: flex-end;
  }

  .tool-modal__panel {
    max-width: 100%;
    max-height: 88vh;
    border-radius: 12px 12px 0 0;
  }
}