/* Reusable Components */

/* Skip Link for Accessibility */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-accent);
  color: white;
  z-index: var(--z-tooltip);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

/* Button Base */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-primary {
  background: var(--color-accent);
  color: white;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-border);
}

/* Icon Button */
.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
}

.btn-icon:hover {
  background: var(--color-surface);
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

/* Filter Pills */
@property --filter-mask-color-left {
  syntax: "<color>";
  inherits: true;
  initial-value: rgba(0,0,0,0);
}

@property --filter-mask-color-right {
  syntax: "<color>";
  inherits: true;
  initial-value: rgba(0,0,0,0);
}

.filter-tabnav {
  --filter-nav-height: 44px;
  --filter-nav-padding: 4px;
  --filter-nav-inner-height: 36px;
  --filter-nav-platter: color-mix(in srgb, var(--color-surface) 82%, var(--color-bg));
  --filter-nav-indicator: var(--color-text);
  --filter-nav-text: color-mix(in srgb, var(--color-text) 72%, var(--color-text-secondary));
  --filter-nav-text-active: var(--color-bg);
  --filter-nav-paddle-size: 40px;
  --filter-mask-gradient-width: 22px;
  --filter-mask-opaque-width: calc(var(--filter-nav-paddle-size) - var(--filter-nav-padding));
  --filter-mask-color-left: transparent;
  --filter-mask-color-right: transparent;
  font-size: 14px;
  line-height: 1.2857742857;
  font-weight: 400;
  letter-spacing: -0.016em;
  font-family: "SF Pro Text", "SF Pro Icons", "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  position: relative;
  width: min(100%, max-content);
  max-width: 100%;
}

/* Fade mask on left edge when left paddle is visible */
.filter-tabnav:not(:has(.filter-paddle-left.filter-paddle-hidden)) {
  --filter-mask-color-left: rgba(0,0,0,0);
}
.filter-tabnav:has(.filter-paddle-left.filter-paddle-hidden) {
  --filter-mask-color-left: black;
}

/* Fade mask on right edge when right paddle is visible */
.filter-tabnav:not(:has(.filter-paddle-right.filter-paddle-hidden)) {
  --filter-mask-color-right: rgba(0,0,0,0);
}
.filter-tabnav:has(.filter-paddle-right.filter-paddle-hidden) {
  --filter-mask-color-right: black;
}

.filter-platter {
  position: relative;
  height: var(--filter-nav-height);
  padding: var(--filter-nav-padding);
  background: var(--filter-nav-platter);
  border-radius: 999px;
  overflow: hidden;
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 24%, transparent);
}

.filter-mask {
  position: relative;
  z-index: 1;
  height: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
  overscroll-behavior-x: contain;
  mask-image: linear-gradient(
    90deg,
    var(--filter-mask-color-left) 0,
    var(--filter-mask-color-left) var(--filter-mask-opaque-width),
    black calc(var(--filter-mask-opaque-width) + var(--filter-mask-gradient-width)),
    black calc(100% - var(--filter-mask-opaque-width) - var(--filter-mask-gradient-width)),
    var(--filter-mask-color-right) calc(100% - var(--filter-mask-opaque-width)),
    var(--filter-mask-color-right)
  );
  transition: --filter-mask-color-left 160ms ease, --filter-mask-color-right 160ms ease;
}

.filter-mask::-webkit-scrollbar {
  display: none;
}

.filter-group {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-width: 100%;
  width: max-content;
  margin: 0;
  padding: 0;
  white-space: nowrap;
  position: relative;
  z-index: 1;
  background: transparent;
  border-radius: 0;
}

.filter-tabnav.is-scrollable .filter-group {
  justify-content: flex-start;
}

.filter-item {
  position: relative;
  flex: 0 0 auto;
  height: 100%;
  color: var(--filter-nav-text);
  white-space: nowrap;
  transition: color 120ms ease-out;
}

.filter-item.active {
  color: var(--filter-nav-text-active);
  transition-delay: 160ms;
  transition-duration: 160ms;
  transition-timing-function: ease-in;
}

.filter-pill {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 0 16px;
  border-radius: 999px;
  color: inherit;
  opacity: 0.8;
  font: inherit;
  line-height: 18px;
  transition: opacity 100ms ease-in-out;
}

.filter-pill:hover {
  color: inherit;
  opacity: 1;
}

.filter-pill.active {
  background: transparent;
  color: inherit;
  box-shadow: none;
  opacity: 1;
}

.filter-pill-label {
  display: block;
  position: relative;
  z-index: 1;
  line-height: 18px;
  white-space: nowrap;
  backface-visibility: hidden;
}

.filter-indicator {
  position: absolute;
  top: var(--filter-nav-padding);
  left: var(--filter-nav-padding);
  width: 0;
  height: var(--filter-nav-inner-height);
  background: var(--filter-nav-indicator);
  border-radius: 999px;
  box-shadow:
    0 14px 24px color-mix(in srgb, var(--color-text) 10%, transparent),
    inset 0 1px 0 color-mix(in srgb, #fff 10%, transparent);
  pointer-events: none;
  will-change: left, width;
  transition:
    left 320ms ease-out,
    width 320ms ease-out;
}

.filter-paddles {
  position: absolute;
  inset: var(--filter-nav-padding);
  pointer-events: none;
  z-index: 2;
}

.filter-paddle {
  position: absolute;
  top: 50%;
  width: var(--filter-nav-paddle-size);
  height: var(--filter-nav-paddle-size);
  border-radius: 999px;
  background: color-mix(in srgb, var(--filter-nav-platter) 85%, transparent);
  color: color-mix(in srgb, var(--color-text) 70%, var(--color-text-secondary));
  box-shadow:
    0 10px 20px color-mix(in srgb, var(--color-text) 8%, transparent),
    inset 0 1px 0 color-mix(in srgb, #fff 16%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  pointer-events: auto;
  display: grid;
  place-items: center;
  transform: translateY(-50%);
  transition-delay: 0ms, 40ms, 40ms;
  transition-duration: 100ms, 80ms, 80ms;
  transition-property: color, opacity, visibility;
  transition-timing-function: ease-in-out, ease-out, step-start;
}

.filter-paddle svg {
  width: 7px;
  height: 12px;
}

.filter-paddle:hover {
  color: var(--color-text);
}

.filter-paddle-left {
  left: 0;
}

.filter-paddle-right {
  right: 0;
}

.filter-paddle-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition-delay: 200ms;
  transition-duration: 80ms;
  transition-property: opacity, visibility;
  transition-timing-function: ease-out, step-end;
}

/* Image Card */
.image-card {
  position: relative;
  overflow: hidden;
  border-radius: 0;
  cursor: pointer;
}

.image-card img {
  width: 100%;
  height: auto;
  transition: transform 500ms cubic-bezier(0.25, 0.46, 0.45, 0.94),
              filter 300ms ease;
}

.image-card:hover img {
  transform: scale(1.04);
}

/* Desaturate siblings when one image is hovered */
.masonry-grid:has(.image-card:hover) .image-card:not(:hover) img {
  filter: saturate(0.50);
}

.image-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.5), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
  display: flex;
  align-items: flex-end;
  padding: var(--space-sm);
}

.image-card:hover .image-card-overlay {
  opacity: 1;
}

.image-card-title {
  color: white;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
}

/* Form Elements */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-size: 15px;
  line-height: 24px;
  font-weight: var(--weight-normal);
  color: var(--color-text);
}

.required-indicator {
  color: #c07d7d;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 8px var(--space-sm);
  min-height: 42px;
  font-size: 15px;
  line-height: 24px;
  font-weight: var(--weight-normal);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: var(--color-border);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-text);
  box-shadow: none;
}

.form-input:focus-visible,
.form-select:focus-visible,
.form-textarea:focus-visible {
  outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-secondary);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236E6E73' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-sm) center;
  padding-right: var(--space-lg);
}

.field-feedback {
  display: none;
  margin-top: 4px;
  font-size: 12px;
  line-height: 16px;
}

.field-feedback.is-visible.is-error {
  display: block;
  color: #c55a5a;
}

.form-group.is-invalid .form-input,
.form-group.is-invalid .form-select,
.form-group.is-invalid .form-textarea {
  border-color: #c55a5a;
}

.form-success {
  padding: var(--space-md);
  background: #34C75910;
  border: 1px solid #34C759;
  border-radius: var(--radius-md);
  color: #34C759;
  text-align: center;
}

/* Section Header */
.section-header {
  margin-bottom: var(--space-lg);
}

.section-title {
  font-family: var(--font-accent);
  font-size: var(--text-xl);
  font-style: italic;
  font-weight: var(--weight-normal);
  color: var(--color-text);
}

.section-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: 4px;
}

/* Gear List */
.gear-list {
  display: grid;
  gap: var(--space-lg);
}

.gear-category h3 {
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.gear-category ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.gear-category li {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* Social Links */
.social-links {
  display: flex;
  gap: var(--space-sm);
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
}

.social-link:hover {
  background: var(--color-surface);
}

.social-link svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

/* Loading Spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Fade In Animation */
.fade-in {
  animation: fadeIn var(--transition-normal) ease forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Image Lazy Load Placeholder */
.image-placeholder {
  background: var(--color-surface);
  animation: pulse 2s ease-in-out infinite;
}

/* Portfolio Loading Skeleton */
.masonry-skeleton {
  column-count: 1;
  column-gap: var(--grid-gap-mobile);
}

.masonry-skeleton-item {
  break-inside: avoid;
  margin-bottom: var(--grid-gap-mobile);
  background: var(--color-surface);
  animation: pulse 1.8s ease-in-out infinite;
}

.masonry-skeleton-item:nth-child(3n+1) { aspect-ratio: 3/4; }
.masonry-skeleton-item:nth-child(3n+2) { aspect-ratio: 2/3; }
.masonry-skeleton-item:nth-child(3n)   { aspect-ratio: 4/5; }

@media (max-width: 639px) {
  .masonry-skeleton {
    column-count: 2;
    column-gap: 6px;
  }
  .masonry-skeleton-item {
    margin-bottom: 6px;
  }
}

@media (min-width: 640px) {
  .masonry-skeleton {
    column-count: 2;
    column-gap: var(--grid-gap-desktop);
  }
  .masonry-skeleton-item {
    margin-bottom: var(--grid-gap-desktop);
  }
}

@media (min-width: 1024px) {
  .masonry-skeleton {
    column-count: 3;
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}