/* /assets/css/deck-carousel.css
   Deck Carousel — floating polaroids + lightbox (scoped, responsive)
*/

/* ---- Scoped design tokens ---- */
.deck-carousel,
.deck-lightbox {
  --deck-fg: #e5e7eb;

  /* Photo area (inside the paper) */
  --card-w: 260px;
  --card-h: 280px;

  /* Polaroid paper */
  --paper-pad: 12px;              /* top/left/right */
  --paper-pad-bottom: 62px;       /* thicker bottom strip */
  --paper-radius: 2px;           /* outer paper rounding */
  --photo-radius: 6px;            /* inner photo rounding */
  --paper-edge: rgba(0,0,0,.14);
  --paper-grad-top: #fff;
  --paper-grad-bot: #f8f8f8;

  --shadow: 0 16px 35px rgba(0,0,0,.30);
  --transition: 420ms cubic-bezier(.22,.61,.36,1);
}

/* Responsive var tweaks */
@media (max-width: 900px) {
  .deck-carousel,
  .deck-lightbox { --card-w: 240px; --card-h: 150px; }
}
@media (max-width: 640px) {
  .deck-carousel,
  .deck-lightbox {
    /* taller, Polaroid-like aspect */
    --card-w: min(84vw, 360px);
    --card-h: calc(var(--card-w) * 1.05);

    /* paper feel on phones */
    --paper-pad: clamp(10px, 3.5vw, 14px);
    --paper-pad-bottom: clamp(56px, 11vw, 78px);

    /* less rounded on mobile */
    --paper-radius: 4px;
    --photo-radius: 3px;
  }

  /* a bit more vertical room so shadows don’t clip */
  .deck-track {
    height: calc(var(--card-h) + var(--paper-pad-bottom) + (var(--paper-pad) * 2) + 64px);
  }
}


/* ---- Container / viewport ---- */
.deck-carousel { width: 100%; padding: 16px; }

.deck-viewport {
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
  padding: clamp(12px, 2vw, 24px);
  color: var(--deck-fg);
  background: transparent;
  overflow: visible;

  /* layout: deck row + controls row */
  display: grid;
  grid-template-rows: auto auto;
  row-gap: 10px;
}

/* The fan */
.deck-track {
  position: relative;
  /* include paper padding so bottoms aren't clipped */
  height: calc(var(--card-h) + var(--paper-pad-bottom) + (var(--paper-pad) * 2) + 40px);
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 1000px;             /* 3D context for hover tilt */
}

/* ---- Polaroid Cards ---- */
.deck-card {
  position: absolute;
  width: var(--card-w);
  height: var(--card-h);                         /* photo area; paper adds via padding */
  padding: var(--paper-pad) var(--paper-pad) var(--paper-pad-bottom);
  background: linear-gradient(var(--paper-grad-top), var(--paper-grad-bot));
  border: 1px solid var(--paper-edge);
  border-radius: var(--paper-radius);
  box-shadow: 0 18px 30px rgba(0,0,0,.28), 0 2px 0 rgba(0,0,0,.04) inset;
  transform-origin: bottom center;
  transform:
    translateX(var(--tx, 0deg))
    rotate(var(--rot, 0deg))
    rotate(var(--hover-spin, 0deg))
    scale(var(--sc, 1))
    translateY(var(--hover-lift, 0px))
    rotateX(var(--hover-tilt-x, 0deg))
    rotateY(var(--hover-tilt-y, 0deg));
  transition:
    transform var(--transition),
    filter var(--transition),
    opacity var(--transition),
    box-shadow var(--transition);
  will-change: transform;
  cursor: pointer;
  overflow: visible;                               /* allow table shadow pseudo */
  transform-style: preserve-3d;

  /* depth-of-field defaults */
  --blur: 0px;
  --bright: 1;
  --sat: 1;
  /* apply the filter via variables so JS can tune per-card */
  filter: blur(var(--blur)) brightness(var(--bright)) saturate(var(--sat));
}

/* Photo inside the paper */
.deck-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--photo-pos, 50% 50%);
  display: block;
  border-radius: var(--photo-radius);
  box-shadow: 0 1px 0 rgba(0,0,0,.05) inset;
}

/* Soft “table” shadow under the paper */
.deck-card::before {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: -12px;
  height: 22px;
  background: radial-gradient(ellipse at center, rgba(0,0,0,.35), rgba(0,0,0,0) 70%);
  filter: blur(6px);
  z-index: -1;
  pointer-events: none;
}

/* Subtle inner bottom shading to sell thickness */
.deck-card::after {
  content: "";
  position: absolute;
  left: var(--paper-pad);
  right: var(--paper-pad);
  bottom: calc(var(--paper-pad-bottom) - 8px);
  height: 10px;
  background: linear-gradient(to bottom, rgba(0,0,0,.08), rgba(0,0,0,0));
  border-radius: 6px;
  pointer-events: none;
}

/* Hover/focus lift (desktop) */
@media (hover: hover) {
  .deck-card:hover {
    --hover-lift: -50px;
    --hover-tilt-x: -4deg;
    --hover-tilt-y: 2.6deg;
    --hover-spin-amount: 4deg;
    --hover-spin: calc(var(--side, 0) * var(--hover-spin-amount));
    /* keep hovered card crisp and a touch punchier */
    --blur: 0px;
    --bright: 1.04;
    --sat: 1.03;

    box-shadow: 0 22px 40px rgba(0,0,0,.34), 0 2px 0 rgba(0,0,0,.04) inset;
  }
}

.deck-card:focus-within {
  --hover-lift: -6px;
  --hover-tilt-x: 3deg;
  --hover-spin-amount: 4deg;
  --hover-spin: calc(var(--side, 0) * var(--hover-spin-amount));
  --hover-tilt-y: 0.6deg;

  /* keep focused card crisp/punchy */
  --blur: 0px;
  --bright: 1.03;
  --sat: 1.02;
  
  box-shadow: 0 22px 40px rgba(0,0,0,.34), 0 2px 0 rgba(0,0,0,.04) inset;
}

/* Hit area */
.deck-card__hit {
  position: absolute;
  inset: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

/* ---- Controls row (arrows under the deck) ---- */
.deck-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
}

.deck-nav {
  position: static;                 /* now in flow, centered below */
  width: 48px;
  height: 48px;
  border-radius: 999px;
  border: 0;
  background: rgba(17, 24, 39, .28);
  color: var(--deck-fg);
  font-size: 22px;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background 200ms ease, transform 200ms ease, box-shadow 200ms ease;
  backdrop-filter: blur(2px);
  box-shadow: 0 6px 18px rgba(0,0,0,.25);
}
.deck-nav:hover { background: rgba(17, 24, 39, .38); transform: translateY(-1px); }
.deck-nav:disabled { opacity: .5; pointer-events: none; }

/* Mobile: larger tap targets */
@media (max-width: 640px) {
  .deck-nav { width: 56px; height: 56px; font-size: 24px; }
}

/* ---- Lightbox ---- */
.deck-lightbox[hidden] { display: none !important; }
.deck-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  grid-template-columns: 1fr min(1000px, 92vw) 1fr;
  grid-template-rows: 64px 1fr 64px;
  align-items: center;
  justify-items: center;
  color: var(--deck-fg);
  background: rgba(10, 15, 25, .92);
}

.deck-lightbox__figure {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  text-align: center;
  display: grid;
  place-items: center;
  gap: 14px;
  max-height: 86vh;
}

.deck-lightbox__img {
  display: block;
  margin-inline: auto;
  max-width: 92vw;
  max-height: 70vh;
  width: auto;
  height: auto;
  border-radius: 16px;
  object-fit: contain;
  background: #0b1220;
  box-shadow: 0 16px 35px rgba(0,0,0,.35);
}

.deck-lightbox__caption {
  font-size: 1rem;
  line-height: 1.5;
  opacity: .95;
}

/* Lightbox controls */
.deck-lightbox__close,
.deck-lightbox__prev,
.deck-lightbox__next {
  border: 0;
  border-radius: 999px;
  color: var(--deck-fg);
  background: rgba(17, 24, 39, .35);
  display: grid; place-items: center;
  cursor: pointer;
  backdrop-filter: blur(2px);
  box-shadow: 0 6px 18px rgba(0,0,0,.25);
}

.deck-lightbox__close {
  position: absolute;
  top: 14px; right: 16px;
  width: 40px; height: 40px;
  font-size: 26px; line-height: 1;
}

.deck-lightbox__prev,
.deck-lightbox__next {
  width: 54px; height: 54px;
  font-size: 26px;
}
.deck-lightbox__prev { grid-column: 1; grid-row: 2; justify-self: end; margin-right: 10px; }
.deck-lightbox__next { grid-column: 3; grid-row: 2; justify-self: start; margin-left: 10px; }

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

/* Focus rings */
.deck-nav:focus-visible,
.deck-card__hit:focus-visible,
.deck-lightbox__close:focus-visible,
.deck-lightbox__prev:focus-visible,
.deck-lightbox__next:focus-visible {
  outline: 2px solid rgba(99, 102, 241, .9);
  outline-offset: 2px;
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  .deck-card { transition: transform 0.01ms linear, filter 0.01ms linear; }
}

/* Ultra-small phones: make cards a bit larger and keep the Polaroid feel */
@media (max-width: 420px) {
  .deck-carousel,
  .deck-lightbox {
    --card-w: 88vw;
    --card-h: calc(var(--card-w) * 1.12);
    --paper-pad: clamp(10px, 4vw, 16px);
    --paper-pad-bottom: clamp(64px, 12vw, 88px);
    --paper-radius: 3px;
    --photo-radius: 2px;
  }
}


/* Respect iOS/Android safe area for bottom controls */
@supports (padding: max(0px)) {
  @media (max-width: 640px) {
    .deck-controls { padding-bottom: max(0px, env(safe-area-inset-bottom)); }
  }
}