/**
 * Pufaan Brand Kit — surface styles only.
 * Tokens + fonts come from the global design system:
 *   /styles/fonts.css
 *   /styles/brand.css
 *
 * Do not redefine brand hex values here — edit brand.css.
 */

/* -------------------------------------------------------------------------- */
/* Reset + base                                                                */
/* -------------------------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--bk-font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--bk-text);
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(161, 127, 90, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 20%, rgba(30, 58, 47, 0.06), transparent 50%),
    linear-gradient(180deg, #f8f6f1 0%, var(--bk-bg) 28%, #f3f0e9 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.bk-modal-open {
  overflow: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--bk-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--bk-primary-hover);
}

:focus-visible {
  outline: none;
  box-shadow: var(--bk-focus);
}

.bk-skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--bk-primary);
  color: #fff;
  border-radius: 0 0 var(--bk-radius-sm) 0;
}

.bk-skip:focus {
  left: 0;
}

/* -------------------------------------------------------------------------- */
/* Layout                                                                      */
/* -------------------------------------------------------------------------- */

.bk-shell {
  width: min(100% - (var(--bk-gutter) * 2), var(--bk-max));
  margin-inline: auto;
}

.bk-header {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--bk-border);
  backdrop-filter: blur(10px);
  background: rgba(246, 244, 239, 0.72);
  position: sticky;
  top: 0;
  z-index: 40;
}

.bk-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.bk-logo {
  display: inline-flex;
  align-items: center;
  line-height: 0;
  text-decoration: none;
}

.bk-logo__img {
  display: block;
  height: 32px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
}

.bk-logo:hover {
  text-decoration: none;
}

.bk-nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.875rem;
  color: var(--bk-text-muted);
}

.bk-nav a {
  color: inherit;
  text-decoration: none;
}

.bk-nav a:hover {
  color: var(--bk-primary);
}

/* Hero — one composition */
.bk-hero {
  padding: clamp(3.5rem, 10vw, 6.5rem) 0 clamp(2.5rem, 6vw, 4rem);
}

.bk-hero__label {
  display: inline-block;
  margin: 0 0 1rem;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bk-secondary);
}

.bk-hero__brand {
  margin: 0;
  font-family: var(--bk-font-display);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 600;
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--bk-primary);
}

.bk-hero__tagline {
  margin: 1rem 0 0;
  max-width: 28ch;
  font-family: var(--bk-font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--bk-text);
}

.bk-hero__intro {
  margin: 1.5rem 0 0;
  max-width: 42rem;
  color: var(--bk-text-muted);
  font-size: 1.0625rem;
}

.bk-hero__meta {
  margin: 1.75rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  font-size: 0.8125rem;
  color: var(--bk-text-faint);
}

/* Toolbar */
.bk-toolbar {
  display: grid;
  gap: 1rem;
  padding: 0 0 2rem;
  border-bottom: 1px solid var(--bk-border);
  margin-bottom: 2rem;
}

.bk-search {
  position: relative;
}

.bk-search__input {
  width: 100%;
  appearance: none;
  border: 1px solid var(--bk-border-strong);
  border-radius: var(--bk-radius);
  background: var(--bk-bg-elevated);
  color: var(--bk-text);
  font: inherit;
  font-size: 1rem;
  padding: 0.95rem 1.15rem 0.95rem 2.85rem;
  box-shadow: var(--bk-shadow);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.bk-search__input::placeholder {
  color: var(--bk-text-faint);
}

.bk-search__input:hover {
  border-color: rgba(30, 58, 47, 0.28);
}

.bk-search__icon {
  position: absolute;
  left: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1rem;
  height: 1rem;
  color: var(--bk-text-faint);
  pointer-events: none;
}

.bk-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.bk-chip {
  appearance: none;
  border: 1px solid var(--bk-border-strong);
  background: transparent;
  color: var(--bk-text-muted);
  font: inherit;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.bk-chip:hover {
  border-color: var(--bk-primary);
  color: var(--bk-primary);
}

.bk-chip.is-active {
  background: var(--bk-primary);
  border-color: var(--bk-primary);
  color: #fff;
}

.bk-toolbar__meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  font-size: 0.8125rem;
  color: var(--bk-text-faint);
}

.bk-toolbar__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.bk-sort {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.8125rem;
  color: var(--bk-text-muted);
}

.bk-sort__label {
  font-weight: 500;
}

.bk-sort__select {
  appearance: none;
  border: 1px solid var(--bk-border-strong);
  border-radius: 999px;
  background: var(--bk-bg-elevated)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5' stroke='%235c5a55' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")
    no-repeat right 0.85rem center;
  color: var(--bk-text);
  font: inherit;
  font-size: 0.8125rem;
  padding: 0.55rem 2.2rem 0.55rem 0.95rem;
  cursor: pointer;
}

.bk-sort__select:hover {
  border-color: var(--bk-primary);
}

/* Grid — Swiss: 3 / 2 / 1 */
.bk-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding-bottom: 4rem;
  list-style: none;
  margin: 0;
}

@media (min-width: 720px) {
  .bk-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.75rem;
  }
}

@media (min-width: 1100px) {
  .bk-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
  }
}

.bk-status,
.bk-empty {
  margin: 0 0 2rem;
  padding: 2rem;
  text-align: center;
  color: var(--bk-text-muted);
  background: rgba(255, 252, 247, 0.7);
  border: 1px dashed var(--bk-border-strong);
  border-radius: var(--bk-radius);
}

.bk-status.is-error {
  color: #8a1f16;
  border-color: rgba(138, 31, 22, 0.25);
  background: #fdf4f2;
}

/* -------------------------------------------------------------------------- */
/* Card                                                                        */
/* -------------------------------------------------------------------------- */

.bk-card {
  display: flex;
  flex-direction: column;
  background: var(--bk-bg-elevated);
  border: 1px solid var(--bk-border);
  border-radius: var(--bk-radius);
  box-shadow: var(--bk-shadow);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.bk-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--bk-shadow-hover);
}

.bk-card__media {
  position: relative;
  aspect-ratio: 16 / 10;
  background:
    linear-gradient(135deg, rgba(30, 58, 47, 0.04), transparent 55%),
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 10px,
      rgba(26, 26, 26, 0.015) 10px,
      rgba(26, 26, 26, 0.015) 11px
    ),
    var(--bk-bg-muted);
  border-bottom: 1px solid var(--bk-border);
}

.bk-card__index {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  z-index: 1;
  font-family: var(--bk-font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--bk-primary);
  background: rgba(255, 252, 247, 0.9);
  border: 1px solid var(--bk-border);
  border-radius: 999px;
  padding: 0.25rem 0.55rem;
}

.bk-card__preview-btn {
  appearance: none;
  border: 0;
  background: transparent;
  width: 100%;
  height: 100%;
  padding: 1.5rem;
  cursor: zoom-in;
  display: grid;
  place-items: center;
}

.bk-card__image {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  object-position: center;
}

.bk-card__placeholder {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  color: var(--bk-text-faint);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
}

.bk-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.25rem 1.35rem 1.4rem;
  flex: 1;
}

.bk-card__category {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bk-secondary);
}

.bk-card__title {
  margin: 0;
  font-family: var(--bk-font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--bk-text);
}

.bk-card__desc {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--bk-text-muted);
  flex: 1;
}

.bk-card__meta {
  margin: 0.35rem 0 0;
  padding: 0.75rem 0 0;
  border-top: 1px solid var(--bk-border);
  display: grid;
  gap: 0.35rem;
}

.bk-card__meta-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.75rem;
}

.bk-card__meta-row dt {
  margin: 0;
  color: var(--bk-text-faint);
}

.bk-card__meta-row dd {
  margin: 0;
  color: var(--bk-text-muted);
  text-align: right;
}

.bk-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.bk-card__toast {
  margin: 0;
  font-size: 0.75rem;
  color: var(--bk-primary);
  min-height: 1.1em;
}

/* Buttons */
.bk-btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font: inherit;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 0.55rem 0.9rem;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease,
    opacity 0.15s ease;
}

.bk-btn:disabled {
  opacity: 0.42;
  cursor: not-allowed;
}

.bk-btn--primary {
  background: var(--bk-primary);
  color: #fff;
}

.bk-btn--primary:hover:not(:disabled) {
  background: var(--bk-primary-hover);
  color: #fff;
}

.bk-btn--secondary {
  background: var(--bk-secondary-soft);
  color: var(--bk-primary);
  border-color: rgba(161, 127, 90, 0.35);
}

.bk-btn--secondary:hover:not(:disabled) {
  background: rgba(161, 127, 90, 0.22);
  color: var(--bk-primary);
}

.bk-btn--ghost {
  background: transparent;
  color: var(--bk-text-muted);
  border-color: var(--bk-border-strong);
}

.bk-btn--ghost:hover:not(:disabled) {
  color: var(--bk-primary);
  border-color: var(--bk-primary);
}

/* Footer */
.bk-footer {
  border-top: 1px solid var(--bk-border);
  padding: 2.5rem 0 3rem;
  color: var(--bk-text-faint);
  font-size: 0.8125rem;
}

.bk-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
}

.bk-footer strong {
  color: var(--bk-primary);
  font-weight: 600;
}

/* -------------------------------------------------------------------------- */
/* Modal viewer                                                                */
/* -------------------------------------------------------------------------- */

.bk-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.bk-modal[hidden] {
  display: none;
}

.bk-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 14, 12, 0.88);
  backdrop-filter: blur(6px);
  cursor: pointer;
}

.bk-modal__panel {
  position: relative;
  z-index: 1;
  width: min(100%, 1100px);
  max-height: min(92vh, 900px);
  display: flex;
  flex-direction: column;
  background: #121816;
  color: #f4f1ea;
  border-radius: var(--bk-radius);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

.bk-modal__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.15rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.bk-modal__counter {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(244, 241, 234, 0.55);
}

.bk-modal__title {
  margin: 0.2rem 0 0;
  font-family: var(--bk-font-display);
  font-size: 1.125rem;
  font-weight: 600;
}

.bk-modal__toolbar {
  display: flex;
  gap: 0.35rem;
}

.bk-icon-btn {
  appearance: none;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.05);
  color: #f4f1ea;
  font-size: 1rem;
  cursor: pointer;
}

.bk-icon-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}

.bk-modal__stage {
  position: relative;
  flex: 1;
  min-height: 50vh;
  display: grid;
  place-items: center;
  overflow: hidden;
  touch-action: none;
  cursor: default;
}

.bk-modal__stage.is-zoomed {
  cursor: grab;
}

.bk-modal__stage.is-dragging {
  cursor: grabbing;
}

.bk-modal__image {
  max-width: min(90%, 820px);
  max-height: min(62vh, 640px);
  width: auto;
  height: auto;
  object-fit: contain;
  transform-origin: center center;
  transition: transform 0.05s linear;
  user-select: none;
  -webkit-user-drag: none;
}

.bk-modal__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(18, 24, 22, 0.7);
  color: #f4f1ea;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.bk-modal__nav--prev {
  left: 0.75rem;
}

.bk-modal__nav--next {
  right: 0.75rem;
}

.bk-modal__hint {
  margin: 0;
  padding: 0.75rem 1.15rem 1rem;
  font-size: 0.75rem;
  color: rgba(244, 241, 234, 0.45);
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* Motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .bk-card,
  .bk-btn,
  .bk-chip,
  .bk-modal__image {
    transition: none;
  }

  .bk-card:hover {
    transform: none;
  }
}