/**
 * Shared component utilities for calculators and content surfaces.
 *
 * Responsibilities:
 * - reusable form, button, card, badge, and layout classes
 * - a11y-friendly focus and state styling
 * - page-level helpers like dividers and scroll highlights
 */

:root {
  --calc-control-radius: var(--radius-control, 0.875rem);
  --calc-card-radius: var(--radius-card, 1.25rem);
  --calc-panel-padding: clamp(1rem, 0.82rem + 0.9vw, 1.5rem);
  --calc-card-padding: clamp(1rem, 0.86rem + 0.8vw, 1.5rem);
  --calc-content-padding: clamp(1rem, 0.72rem + 1.25vw, 2rem);
}

:is(
  .calc-result-positive,
  .calc-result-warning,
  .calc-result-error,
  .calc-result-info
) {
  border: 1px solid var(--calc-result-border, var(--color-border-primary));
  border-radius: var(--calc-card-radius);
  padding: var(--calc-panel-padding);
  background: linear-gradient(
    135deg,
    var(--calc-result-accent) 0%,
    var(--color-bg-elevated) 100%
  );
  box-shadow: var(--shadow-sm);
}

.calc-result-positive {
  --calc-result-accent: var(--color-success-light);
  --calc-result-border: color-mix(
    in srgb,
    var(--color-success) 40%,
    var(--color-border-primary)
  );
}

.calc-result-warning {
  --calc-result-accent: var(--color-warning-light);
  --calc-result-border: color-mix(
    in srgb,
    var(--color-warning) 40%,
    var(--color-border-primary)
  );
}

.calc-result-error {
  --calc-result-accent: var(--color-error-light);
  --calc-result-border: color-mix(
    in srgb,
    var(--color-error) 45%,
    var(--color-border-primary)
  );
}

.calc-result-info {
  --calc-result-accent: var(--color-info-light);
  --calc-result-border: color-mix(
    in srgb,
    var(--color-info) 38%,
    var(--color-border-primary)
  );
}

.calc-input {
  width: 100%;
  min-height: 3rem;
  background-color: var(--color-bg-elevated);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--calc-control-radius);
  padding: 0.875rem 1rem;
  font: inherit;
  line-height: 1.5;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.32);
  transition-property: background-color, border-color, box-shadow, color;
  transition-duration: var(--motion-duration-fast);
  transition-timing-function: var(--motion-ease-standard);
}

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

.calc-input:hover:not(:disabled):not([readonly]) {
  border-color: var(--color-border-strong);
}

.calc-input:focus,
.calc-input:focus-visible {
  outline: none;
  border-color: var(--color-border-interactive);
  box-shadow: var(--focus-ring-brand);
}

.calc-input:disabled {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-disabled);
  border-color: var(--color-border-primary);
  cursor: not-allowed;
}

.calc-input-error {
  border-color: var(--color-border-error);
  background-color: color-mix(
    in srgb,
    var(--color-error-light) 72%,
    var(--color-bg-elevated)
  );
}

.calc-input-error:focus,
.calc-input-error:focus-visible {
  border-color: var(--color-error);
  box-shadow: var(--focus-ring-error);
}

.calc-input-success {
  border-color: var(--color-border-success);
  background-color: color-mix(
    in srgb,
    var(--color-success-light) 72%,
    var(--color-bg-elevated)
  );
}

.calc-input-success:focus,
.calc-input-success:focus-visible {
  border-color: var(--color-success);
  box-shadow: var(--focus-ring-success);
}

:is(
  .calc-button-primary,
  .calc-button-secondary,
  .calc-button-outline,
  .calc-button-success,
  .calc-button-warning,
  .calc-button-error
) {
  border-width: 1px;
  border-style: solid;
  border-radius: var(--calc-control-radius);
  font: inherit;
  font-weight: var(--font-weight-semibold, 600);
  letter-spacing: var(--letter-spacing-wide, 0.01em);
  box-shadow: var(--shadow-sm);
  transition-property:
    background-color, border-color, color, box-shadow, transform;
  transition-duration: var(--motion-duration-fast);
  transition-timing-function: var(--motion-ease-standard);
  will-change: transform;
}

:is(
  .calc-button-primary,
  .calc-button-secondary,
  .calc-button-outline,
  .calc-button-success,
  .calc-button-warning,
  .calc-button-error
):focus-visible {
  outline: none;
  box-shadow:
    0 0 0 2px var(--color-bg-elevated),
    var(--focus-ring-brand);
}

:is(
    .calc-button-primary,
    .calc-button-secondary,
    .calc-button-outline,
    .calc-button-success,
    .calc-button-warning,
    .calc-button-error
  ):active:not(:disabled) {
  transform: translateY(1px);
  box-shadow: var(--shadow-xs);
}

:is(
  .calc-button-primary,
  .calc-button-secondary,
  .calc-button-outline,
  .calc-button-success,
  .calc-button-warning,
  .calc-button-error
):disabled {
  background: var(--color-bg-tertiary);
  color: var(--color-text-disabled);
  border-color: var(--color-border-primary);
  box-shadow: none;
  cursor: not-allowed;
}

.calc-button-primary {
  background: linear-gradient(
    135deg,
    var(--color-interactive) 0%,
    var(--cta-primary, var(--primary-500)) 100%
  );
  color: var(--color-text-inverse);
  border-color: transparent;
}

.calc-button-secondary {
  background-color: var(--color-bg-elevated);
  color: var(--color-interactive);
  border-color: var(--color-border-interactive);
}

.calc-button-outline {
  background-color: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border-secondary);
}

.calc-button-success {
  background-color: var(--color-success);
  color: var(--color-text-inverse);
  border-color: var(--color-success);
}

.calc-button-warning {
  background-color: var(--color-warning);
  color: var(--color-text-inverse);
  border-color: var(--color-warning);
}

.calc-button-error {
  background-color: var(--color-error);
  color: var(--color-text-inverse);
  border-color: var(--color-error);
}

@media (hover: hover) and (pointer: fine) {
  .calc-button-primary:hover:not(:disabled) {
    filter: brightness(1.03);
    box-shadow: var(--shadow-md);
  }

  .calc-button-secondary:hover:not(:disabled) {
    background-color: var(--color-interactive-light);
    border-color: var(--color-interactive);
    color: var(--color-interactive-hover);
  }

  .calc-button-outline:hover:not(:disabled) {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-border-strong);
    color: var(--color-text-primary);
  }

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

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

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

:is(.calc-card, .calc-card-elevated, .calc-card-premium, .calc-content) {
  border: 1px solid var(--color-border-primary);
  border-radius: var(--calc-card-radius);
}

.calc-card {
  background: var(--surface-panel);
  box-shadow: var(--shadow-sm);
  padding: var(--calc-card-padding);
}

.calc-card-elevated {
  background: var(--surface-panel);
  box-shadow: var(--shadow-lg);
  padding: var(--calc-card-padding);
}

.calc-card-premium {
  background: var(--gradient-card-light, var(--surface-panel-emphasis));
  box-shadow: var(--shadow-card-soft);
  padding: var(--calc-card-padding);
  transition:
    box-shadow var(--motion-duration-normal) var(--motion-ease-standard),
    transform var(--motion-duration-normal) var(--motion-ease-standard);
}

@media (hover: hover) and (pointer: fine) {
  .calc-card-premium:hover {
    box-shadow: var(--shadow-card-soft-hover);
    transform: translateY(-4px);
  }
}

.calc-section {
  background: var(--surface-panel-muted);
  border: 1px solid
    var(--surface-section-alt-border, var(--color-border-primary));
  border-radius: calc(var(--calc-card-radius) - 0.25rem);
  padding: var(--calc-card-padding);
}

/* Calculator form section: results area (warm brand elevation) */
.calc-section-results {
  background: var(--surface-result);
  padding-top: 1.25rem;
  margin-top: 1.25rem;
  position: relative;
}

/* Brand gradient accent bar above results — mirrors ResultSummary accent bar */
.calc-section-results::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0.5rem;
  right: 0.5rem;
  height: 2px;
  border-radius: 1px;
  background: linear-gradient(
    90deg,
    var(--color-interactive) 0%,
    var(--primary-500, #f97316) 100%
  );
  opacity: 0.7;
}

/* Calculator form section: optional/refinement area (muted recession) */
.calc-section-optional {
  background-color: var(--surface-optional);
  padding-top: 1.25rem;
  margin-top: 1.25rem;
  border-radius: 0.75rem;
  position: relative;
}

/* Gradient-fade divider above optional section (replaces dashed border) */
.calc-section-optional::before {
  content: "";
  position: absolute;
  top: 0;
  left: 5%;
  right: 5%;
  height: 1px;
  background: var(--surface-divider);
}

/* Section header label — shared base for calculator form sections */
.calc-section-header {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.calc-container {
  min-height: 100vh;
  padding: clamp(1rem, 0.7rem + 1vw, 2rem) 1rem;
  background: var(--gradient-page-top, var(--color-bg-primary));
}

.calc-content {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: var(--calc-content-padding);
  background: var(--gradient-card-light, var(--surface-panel));
  box-shadow: var(--shadow-card-soft);
}

:is(
  .calc-error-message,
  .calc-success-message,
  .calc-warning-message,
  .calc-info-message
) {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-top: 0.375rem;
  font-size: var(--text-small, 0.875rem);
  line-height: var(--line-height-relaxed, 1.55);
}

.calc-error-message {
  color: var(--color-error-dark);
}

.calc-success-message {
  color: var(--color-success-dark);
}

.calc-warning-message {
  color: var(--color-warning-dark);
}

.calc-info-message {
  color: var(--color-info-dark);
}

.calc-progress-bar {
  width: 100%;
  height: 0.5rem;
  background-color: var(--color-bg-tertiary);
  border-radius: var(--radius-pill, 999px);
  overflow: hidden;
  box-shadow: inset 0 1px 2px rgba(28, 25, 23, 0.08);
}

.calc-progress-fill {
  height: 100%;
  background: linear-gradient(
    90deg,
    var(--color-interactive) 0%,
    var(--cta-primary, var(--primary-500)) 100%
  );
  border-radius: inherit;
  transition: width var(--motion-duration-normal) var(--motion-ease-standard);
}

.calc-focus-ring:focus-visible {
  outline: none;
  box-shadow:
    0 0 0 2px var(--color-bg-elevated),
    var(--focus-ring-brand);
  border-radius: 0.5rem;
}

.focus-ring-standard {
  outline: none;
}

.focus-ring-standard:focus-visible {
  outline: none;
  box-shadow:
    0 0 0 2px var(--color-bg-elevated),
    var(--focus-ring-brand);
  border-radius: 0.5rem;
}

.focus-ring-light:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring-light);
  border-radius: 0.5rem;
}

@media (prefers-contrast: more) {
  .calc-button-primary,
  .calc-button-secondary,
  .calc-button-outline,
  .calc-input,
  .calc-card,
  .calc-card-elevated,
  .calc-card-premium {
    border-width: 2px;
  }
}

@media (max-width: 767px) {
  .table-scroll-hint {
    background:
      linear-gradient(to right, var(--ui-background, #fff) 30%, transparent)
        left center,
      linear-gradient(to left, var(--ui-background, #fff) 30%, transparent)
        right center,
      radial-gradient(farthest-side at 0 50%, rgba(0, 0, 0, 0.1), transparent)
        left center,
      radial-gradient(
          farthest-side at 100% 50%,
          rgba(0, 0, 0, 0.1),
          transparent
        )
        right center;
    background-repeat: no-repeat;
    background-size:
      40px 100%,
      40px 100%,
      20px 100%,
      20px 100%;
    background-attachment: local, local, scroll, scroll;
  }
}

@media (max-width: 640px) {
  .calc-container {
    padding-inline: 0.75rem;
  }

  .calc-content {
    padding: 1rem;
    margin-inline: 0.25rem;
  }

  .calc-card,
  .calc-card-elevated,
  .calc-card-premium,
  .calc-section {
    padding: 1rem;
  }
}

@media (max-width: 480px) {
  .calc-result-positive,
  .calc-result-warning,
  .calc-result-error,
  .calc-result-info {
    padding: 1rem;
  }
}

.content-auto-visibility {
  content-visibility: auto;
  contain-intrinsic-size: auto 500px;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.calc-badge-popular {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-pill, 999px);
  font-size: 0.6875rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: var(--letter-spacing-wide, 0.01em);
}

.calc-badge-popular-subtle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.375rem 0.75rem;
  border-radius: 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  background: linear-gradient(
    135deg,
    var(--color-warning-light) 0%,
    color-mix(in srgb, var(--color-warning) 12%, white) 100%
  );
  color: var(--color-warning-dark);
  border: 1px solid
    color-mix(in srgb, var(--color-warning) 24%, var(--color-border-primary));
}

.calc-badge-category {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-pill, 999px);
  font-size: 0.75rem;
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border-primary);
}

.calc-input-group input:focus,
.calc-input-group input:focus-visible {
  outline: none !important;
  box-shadow: none !important;
}

.calc-input-group input::-moz-focus-inner {
  border: 0;
}

.calc-input-group input {
  -webkit-tap-highlight-color: transparent;
}

header.header-has-border {
  border-bottom: 1px solid transparent;
  border-image: linear-gradient(
      90deg,
      var(--brand-accent, var(--color-interactive)),
      var(--cta-primary, var(--primary-500))
    )
    1;
}

@media (max-width: 767px) {
  header.header-hidden {
    transform: translateY(-100%);
    pointer-events: none;
  }
}

.section-divider {
  height: 1px;
  border: none;
  margin: 2rem 0;
  background: var(--surface-divider);
}

.section-divider--compact {
  margin: 1rem 0;
}

.section-divider--loose {
  margin: 3rem 0;
}

@keyframes scrollTargetHighlight {
  0% {
    background-color: var(--surface-scroll-highlight);
  }

  100% {
    background-color: transparent;
  }
}

.scroll-target-highlight {
  animation: scrollTargetHighlight 1.8s var(--motion-ease-standard);
  border-radius: 0.5rem;
}

@media print {
  [class*="shadow"] {
    box-shadow: none !important;
  }

  [class*="ring-"] {
    box-shadow: none !important;
  }

  [class*="bg-gradient"] {
    background: none !important;
    border: 1px solid #d6d3d1 !important;
  }

  [class*="grid-cols-2"],
  [class*="grid-cols-3"],
  [class*="grid-cols-4"] {
    grid-template-columns: 1fr !important;
  }

  table,
  th,
  td {
    border: 1px solid #d6d3d1 !important;
  }

  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.75em;
    color: #57534e;
    word-break: break-all;
  }

  * {
    transition: none !important;
    animation: none !important;
  }

  [class*="hover:"],
  button[aria-label="collapse"],
  summary::marker {
    pointer-events: none;
  }

  details > summary {
    list-style: none;
  }

  details > summary::marker,
  details > summary::-webkit-details-marker {
    display: none;
  }

  details > *:not(summary) {
    display: block !important;
  }
}

[data-field-group="optional"] [data-optional-label] {
  display: none;
}