/* ===================================================
   PROJECT CUBE — matches NOOR Productions design tokens
=================================================== */
:root{
  --void:        #051213;
  --charcoal:
    radial-gradient(60% 75% at 6% 45%, rgba(42,157,143,0.46), transparent 72%),
    radial-gradient(55% 75% at 95% 55%, rgba(212,160,23,0.27), transparent 72%),
    radial-gradient(55% 55% at 50% 100%, rgba(74,124,89,0.38), transparent 72%),
    radial-gradient(42% 45% at 30% 0%, rgba(168,218,220,0.15), transparent 72%),
    linear-gradient(110deg, #0a3b3b 0%, #0F5C5C 24%, #0d4a46 50%, #1b3d2b 76%, #3a3012 100%);
  --charcoal-lift: linear-gradient(rgba(246,217,138,0.08), rgba(246,217,138,0.08)), var(--charcoal);
  --night:
    radial-gradient(50% 60% at 4% 40%, rgba(15,92,92,0.55), transparent 72%),
    radial-gradient(45% 60% at 98% 60%, rgba(212,160,23,0.16), transparent 72%),
    radial-gradient(45% 45% at 55% 100%, rgba(74,124,89,0.22), transparent 72%),
    #051213;
  --card-solid: linear-gradient(155deg, #0d4646 0%, #0a3434 55%, #0b2c27 100%);
  --glass: rgba(8,46,47,0.62);
  --teal-deep:#0F5C5C; --teal-mid:#2A9D8F; --teal-mist:#A8DADC;
  --sage:#4A7C59; --moss:#8AA899; --sage-light:#C2D9A0;
  --gold-rich:#D4A017; --champagne:#E8C36A; --ivory:#FFF8E7;
  --gold:        #dbb56a;
  --gold-bright: #f6d98a;
  --gold-dim:    #8c7440;
  --ink:         #f4f0e4;
  --mono-text:   #bfcbc3;

  --font-display: 'Space Grotesk', sans-serif;
  --font-mono:    'Space Mono', monospace;
  --font-body:    'Inter', sans-serif;

  --edge: 32px;
}

*{ margin:0; padding:0; box-sizing:border-box; }

html{ text-rendering: optimizeLegibility; }

body{
  background: var(--void);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection{ background: var(--gold); color: var(--void); }

/* ---------------- background canvas ----------------
   Solid void instead of a soft blurred radial gradient —
   the WebGL cube + drifting gold particles now provide
   the depth, so the backdrop itself stays high-contrast
   and sharp instead of hazy. */
#cube-canvas{
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
  pointer-events: none;
  background: var(--void);
}

/* A tighter, harder-edged vignette drawn in CSS (not baked
   into a blurred canvas gradient) keeps the frame's corners
   defined without smearing the center. */
body::before{
  content: '';
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 28%, transparent 0%, transparent 48%, rgba(0,0,0,0.35) 78%, rgba(0,0,0,0.6) 100%);
}

/* ---------------- HUD corners ---------------- */
.hud-corner{
  position: fixed;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mono-text);
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hud-tl{ top: var(--edge); left: var(--edge); border-top:1px solid var(--gold-dim); border-left:1px solid var(--gold-dim); padding:10px 16px; text-decoration:none; cursor:pointer; transition: color 0.2s ease, border-color 0.2s ease; }
.hud-tl:hover{ color: var(--gold-bright); border-color: var(--gold); }
.hud-tr{ top: var(--edge); right: var(--edge); border-top:1px solid var(--gold-dim); border-right:1px solid var(--gold-dim); padding:10px 16px; color: var(--gold); }

/* ---------------- stage ---------------- */
.cube-stage{
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 24px 14vh;
  text-align: center;
}

/* Fixed-height band that always reserves the full first viewport,
   regardless of which children inside it are shown/hidden. This is
   what keeps the gallery section below from ever drifting up into
   the cube's space — its starting position never depends on the
   info column's own height. */
.cube-hero{
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 6vw;
}

@media (max-width: 900px){
  .cube-hero{ justify-content: center; padding-right: 0; padding-top: 30vh; }
}

/* Everything that talks about a piece — greeting, keypad, story — lives
   in one permanently in-flow column. No docking / position:fixed here:
   that was the source of the overlap, since removing an element from
   flow makes its siblings collapse up into its old space. Plain flow
   removes the possibility of that entirely. */
.cube-content{
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  width: 100%;
  max-width: 460px;
}

.greeting{
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.2vw, 1.3rem);
  color: var(--mono-text);
  max-width: 520px;
  line-height: 1.6;
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.greeting.is-hidden{
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  position: absolute;
}

.story-panel{
  max-width: 560px;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.story-panel.is-visible{
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.story-tag{
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.25em;
  color: var(--gold);
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--gold-dim);
  margin-bottom: 18px;
}
.story-title{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  line-height: 1.25;
  color: var(--ink);
  margin-bottom: 14px;
}
.story-body{
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--mono-text);
}
.story-link{
  margin-top: 20px;
  display: none;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--gold);
  text-decoration: none;
  transition: gap 0.2s ease, color 0.2s ease;
}
.story-link:hover{ gap: 12px; color: var(--gold-bright); }

/* ---------------- cube picker: face tabs + 3x3 piece grid ----------------
   54 pieces don't fit as one flat row of buttons, so they're grouped
   by face — pick a face, then pick one of its 9 pieces. */
.cube-picker{
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.picker-tabs{
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}
.picker-tab{
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--gold-dim);
  background: var(--glass);
  color: var(--mono-text);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  cursor: pointer;
  transition: border-color 0.25s ease, color 0.25s ease, background 0.25s ease;
}
.picker-tab:hover{ color: var(--gold-bright); border-color: var(--gold); }
.picker-tab.is-active{
  background: var(--gold);
  color: var(--void);
  border-color: var(--gold);
}

.picker-grid{
  display: grid;
  grid-template-columns: repeat(3, 44px);
  grid-template-rows: repeat(3, 44px);
  gap: 10px;
}

.slot-btn{
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--gold-dim);
  background: var(--glass);
  color: var(--mono-text);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
}
.slot-btn:hover{ border-color: var(--gold-bright); box-shadow: 0 0 20px rgba(240,205,122,0.2); }
.slot-btn:focus-visible{ outline: 2px solid var(--gold-bright); outline-offset: 3px; }
.slot-btn.has-work{ color: var(--gold-bright); border-color: var(--gold); }
.slot-btn.has-work::after{
  content: '';
  position: absolute;
  top: 4px; right: 4px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--gold-bright);
  box-shadow: 0 0 6px var(--gold-bright);
}
.slot-btn.is-active{
  background: var(--gold);
  color: var(--void);
  border-color: var(--gold);
  box-shadow: 0 0 24px rgba(201,161,90,0.35);
}

/* ---------------- gallery slider ----------------
   Sits in the space below the cube that scroll already
   reveals. Boxes are sized to each picture's own aspect
   ratio (set inline via JS once the image loads), not a
   uniform square grid. */
.gallery-section{
  width: 100%;
  max-width: 900px;
  margin-top: 8vh;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.gallery-section.is-inview{
  opacity: 1;
  transform: translateY(0);
}
.gallery-head{
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}
.gallery-tag{
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.25em;
  color: var(--gold);
  padding: 4px 10px;
  border: 1px solid var(--gold-dim);
}
.gallery-title{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1rem, 2.4vw, 1.3rem);
  color: var(--ink);
}
.gallery-track{
  display: flex;
  gap: 14px;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 6px 6px 18px;
  scroll-snap-type: x proximity;
  justify-content: flex-start;
}
.gallery-track::-webkit-scrollbar{ height: 6px; }
.gallery-track::-webkit-scrollbar-thumb{ background: var(--gold-dim); border-radius: 999px; }
.gallery-box{
  flex: 0 0 auto;
  height: 220px;
  aspect-ratio: 4 / 3; /* overwritten per-image once its real size loads */
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--gold-dim);
  scroll-snap-align: start;
  background: var(--charcoal);
}
.gallery-box img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.gallery-empty{
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--mono-text);
  line-height: 1.7;
  max-width: 460px;
  margin: 0 auto;
}

@media (max-width: 720px){
  :root{ --edge: 16px; }
  .cube-stage{ padding-top: 44vh; gap: 24px; }
  .picker-grid{ grid-template-columns: repeat(3, 38px); grid-template-rows: repeat(3, 38px); gap: 8px; }
  .slot-btn{ width: 38px; height: 38px; font-size: 10px; }
  .hud-corner{ font-size: 9px; padding: 6px 10px; letter-spacing: 0.12em; }
  .gallery-box{ height: 160px; }
}

/* ===================================================
   MOBILE — free-drag cube + tap overlay (< 900px)
   Desktop keeps the face-tab keypad above untouched;
   these rules only bite under the breakpoint.
=================================================== */

/* Base state for every mobile-only element: hidden everywhere
   by default, only ever shown inside the mobile media query
   below, and even then gated by its own .is-open/.is-visible
   toggle from cube.js. */
.mobile-help-btn,
.mobile-close-btn,
.mobile-immovable,
.mobile-sheet,
.mobile-toast,
.mobile-help-sheet{
  display: none;
}

@media (max-width: 899px){
  /* No keypad on mobile — selection happens by tapping the cube
     itself. The old scroll-revealed gallery section is replaced
     by the per-piece sheet below, so it's hidden too. */
  .cube-hero,
  .cube-content,
  .gallery-section{
    display: none;
  }
  /* The whole interaction now happens on one fixed screen — drag
     the cube, tap pieces, read the sheet — so the page itself
     doesn't scroll on mobile at all. */
  body{ overflow: hidden; }
  /* Everything inside .cube-stage is hidden on mobile (see above), but
     the element itself still spans the full viewport at z-index:2 —
     above the canvas's z-index:0 — so without this it silently eats
     every tap/drag meant for the cube. Nothing interactive lives
     inside .cube-stage on mobile, so switching it off here is safe. */
  .cube-stage{ height: 100vh; min-height: 100vh; padding: 0; overflow: hidden; pointer-events: none; }

  /* The cube becomes directly touchable, and needs touch-action:none
     so the browser doesn't try to scroll/zoom the page while a drag
     is in progress on the canvas itself. */
  #cube-canvas{ pointer-events: auto; touch-action: none; }

  /* Free up the top-right corner for the close (✕) button — the
     progress counter isn't meaningful once there's no keypad. */
  .hud-tr{ display: none; }

  .mobile-help-btn{
    display: flex;
    position: fixed;
    left: 16px;
    bottom: 16px;
    z-index: 50; /* above both overlay layers -> always tappable */
    width: 42px;
    height: 42px;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    background: rgba(8,46,47,0.78);
    border: 1px solid var(--gold-dim);
    color: var(--gold-bright);
    font-family: var(--font-mono);
    font-size: 16px;
    cursor: pointer;
  }

  .mobile-close-btn.is-visible{
    display: flex;
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 60; /* topmost -> always tappable while an overlay is up */
    width: 42px;
    height: 42px;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    background: rgba(7,40,41,0.88);
    border: 1px solid var(--gold);
    color: var(--gold-bright);
    font-size: 18px;
    cursor: pointer;
  }

  /* Invisible on purpose — its only job is to sit above the canvas
     (z-index 10, above the canvas' 0) and swallow taps meant for
     the cube while a piece is open. Never moves, shows nothing. */
  .mobile-immovable.is-open{
    display: block;
    position: fixed;
    inset: 0;
    z-index: 10;
    background: transparent;
  }

  /* Transparent scrollable sheet, stacked above the immovable layer
     (z-index 20). Starts with a tall empty spacer above its content
     so only a sliver peeks up from the bottom on open; scrolling it
     slides that content up over the immovable layer, which itself
     never shifts. Only the text/image content inside is opaque —
     everywhere else in this layer, the cube behind stays visible. */
  .mobile-sheet.is-open{
    display: block;
    position: fixed;
    inset: 0;
    z-index: 20;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    background: transparent;
  }
  .mobile-sheet-inner{
    min-height: 132vh;
    display: flex;
    flex-direction: column;
  }
  .mobile-sheet-spacer{
    flex: 0 0 auto;
    height: 70vh;
  }
  .mobile-sheet-content{
    flex: 1 0 auto;
    padding: 24px 22px 70px;
    text-align: left;
  }
  .mobile-sheet-content .story-tag,
  .mobile-sheet-content .story-title,
  .mobile-sheet-content .story-body{
    text-shadow: 0 2px 16px rgba(0,0,0,0.95);
  }
  .mobile-sheet-content .story-title{ margin-top: 12px; }
  .mobile-sheet-content .gallery-track{ margin-top: 22px; }

  .mobile-toast.is-visible{
    display: block;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 70;
    max-width: 78vw;
    text-align: center;
    background: rgba(6,28,29,0.94);
    border: 1px solid var(--gold-dim);
    border-radius: 10px;
    padding: 16px 22px;
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 0.9rem;
    line-height: 1.5;
  }

  .mobile-help-sheet.is-open{
    display: flex;
    position: fixed;
    inset: 0;
    z-index: 80;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(5,22,23,0.78);
  }
  .mobile-help-card{
    width: 100%;
    max-width: 360px;
    background: #0a3434;
    border: 1px solid var(--gold-dim);
    border-radius: 14px;
    padding: 24px;
  }
  .mobile-help-card h3{
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--gold-bright);
    margin-bottom: 16px;
  }
  .mobile-help-card ul{
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 11px;
    margin-bottom: 20px;
  }
  .mobile-help-card li{
    position: relative;
    padding-left: 16px;
    font-family: var(--font-body);
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--mono-text);
  }
  .mobile-help-card li::before{
    content: '—';
    position: absolute;
    left: 0;
    color: var(--gold);
  }
  .mobile-help-close{
    width: 100%;
    padding: 11px;
    border-radius: 8px;
    border: 1px solid var(--gold);
    background: var(--gold);
    color: var(--void);
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.1em;
    cursor: pointer;
  }
}