/* ==========================================================================
   Fix Blurry Photos Guide — /guides/photography/fix-blurry-photos/
   ========================================================================== */

.guide-fix-blurry-photo-page .ref-section {
  padding: var(--space-16) 0;
}

/* Hidden SVG filter definitions */
.blur-filters {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

/* Same source photo — blur applied via SVG filters on the overlay only */
.image-compare__top--motion {
  filter: url(#blur-motion);
}

.image-compare__top--focus {
  filter: url(#blur-focus);
}

.image-compare__top--shake {
  filter: url(#blur-shake);
}

/* This page's comparison fills the container, photo's native 3:2 ratio (no crop) */
.guide-fix-blurry-photo-page .image-compare {
  --ic-aspect: 3 / 2;
  --ic-max-width: none;
}

/* Blur type diagnostic */
.blur-diagnostic {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin: 0 0 var(--space-8);
}

.blur-diagnostic__btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-4);
  background: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  cursor: pointer;
  text-align: left;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.blur-diagnostic__btn:hover {
  border-color: var(--color-gray-300);
  box-shadow: var(--shadow-sm);
}

.blur-diagnostic__btn[aria-pressed="true"] {
  border-color: #000;
  box-shadow: var(--shadow-md);
}

.blur-diagnostic__icon {
  width: 34px;
  height: 34px;
  color: var(--color-gray-700);
}

.blur-diagnostic__btn[aria-pressed="true"] .blur-diagnostic__icon {
  color: #000;
}

.blur-diagnostic__label {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
}

.blur-diagnostic__hint {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  line-height: 1.4;
}

/* Reciprocal rule calculator — a self-contained tool inside the Camera Shake section */
.reciprocal-calc {
  margin-top: var(--space-8);
  padding: var(--space-6);
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
}

.reciprocal-calc__title {
  margin: 0 0 var(--space-1);
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-black);
}

.reciprocal-calc__sub {
  margin: 0 0 var(--space-5);
  max-width: 60ch;
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-gray-600);
}

.reciprocal-calc__controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4) var(--space-6);
  margin-bottom: var(--space-5);
}

.reciprocal-calc__field {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.reciprocal-calc__field > label {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
}

.reciprocal-calc__input-wrap {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.reciprocal-calc__input {
  width: 90px;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  background: var(--color-white);
  font-family: var(--font-mono);
  font-size: var(--text-base);
  text-align: center;
}

.reciprocal-calc__input:focus {
  outline: none;
  border-color: #000;
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
}

.reciprocal-calc__unit {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.reciprocal-calc__toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-gray-700);
  cursor: pointer;
}

.reciprocal-calc__result {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.reciprocal-calc__result-item {
  padding: var(--space-4);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  text-align: center;
}

.reciprocal-calc__result-value {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-black);
  line-height: 1;
}

.reciprocal-calc__result-label {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-gray-500);
}

/* Numbered steps and setting callouts now come from /css/guide-layout.css */

@media (max-width: 768px) {
  .blur-diagnostic {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .blur-diagnostic {
    grid-template-columns: 1fr;
  }

  .reciprocal-calc__result {
    grid-template-columns: 1fr;
  }
}

/* Night vision */
body.night-vision .blur-diagnostic__btn {
  background: var(--nv-bg-card);
  border-color: var(--nv-border);
}

body.night-vision .blur-diagnostic__btn[aria-pressed="true"] {
  border-color: var(--nv-accent);
}

body.night-vision .blur-diagnostic__icon {
  color: var(--nv-text-muted);
}

body.night-vision .blur-diagnostic__btn[aria-pressed="true"] .blur-diagnostic__icon {
  color: var(--nv-text);
}

body.night-vision .blur-diagnostic__label {
  color: var(--nv-text);
}

body.night-vision .blur-diagnostic__hint {
  color: var(--nv-text-muted);
}

body.night-vision .reciprocal-calc {
  background: var(--nv-bg-elevated);
  border-color: var(--nv-border);
}

body.night-vision .reciprocal-calc__title {
  color: var(--nv-text);
}

body.night-vision .reciprocal-calc__sub,
body.night-vision .reciprocal-calc__toggle,
body.night-vision .reciprocal-calc__unit {
  color: var(--nv-text-muted);
}

body.night-vision .reciprocal-calc__input {
  background: var(--nv-bg);
  border-color: var(--nv-border);
  color: var(--nv-text);
}

body.night-vision .reciprocal-calc__result-item {
  background: var(--nv-bg-card);
  border-color: var(--nv-border);
}

body.night-vision .reciprocal-calc__result-value {
  color: var(--nv-text);
}