/**
 * shell.css — Pack shell layout (index.html only)
 * Design tokens, metal buttons and cards come from theme.css.
 */

body.dx-shell { display: flex; flex-direction: column; overflow: hidden; }

/* ═════════ header ═════════ */
#dx-header { position: relative; z-index: 50; flex: none; height: var(--header-h); display: flex; align-items: center; justify-content: space-between; padding: 0 22px;
  background: linear-gradient(180deg, rgba(20,20,25,0.9), rgba(11,11,14,0.7)); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line-dark);
  transition: height 0.5s var(--ease); }
.dx-h-left, .dx-h-right { display: flex; align-items: center; gap: 12px; }
#dx-main-site-btn.dx-brand { height: 38px; padding: 0 18px; }
.dx-crumb-btn { display: flex; align-items: center; gap: 10px; border: 0; background: none; cursor: pointer; color: var(--paper); font-weight: 700; font-size: 13px; padding: 6px 8px; border-radius: 8px; transition: background 0.2s; }
.dx-crumb-btn:hover { background: rgba(255,255,255,0.07); }
.dx-crumb-btn .sep { color: var(--paper-dim); opacity: 0.6; }
.dx-count { color: var(--paper-dim); padding: 6px 12px; border-radius: 99px; box-shadow: 0 0 0 1px var(--line-dark) inset; }
body.in-effect { --header-h: 54px; }
body.in-effect #dx-main-site-btn.dx-brand { height: 32px; }

#dx-content { position: relative; z-index: 2; flex: 1; min-height: 0; }
#dx-landing { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; transition: opacity 0.5s var(--ease), transform 0.6s var(--ease); }
body.in-effect #dx-landing { opacity: 0; transform: scale(0.97); pointer-events: none; }

/* ═════════ hero ═════════ */
.dx-hero { flex: none; text-align: center; padding: clamp(18px, 4.2vh, 46px) 24px 0; max-width: 820px; }
.dx-hero .dx-mono { color: var(--paper-dim); letter-spacing: 0.24em; }
#dx-title { margin: 10px 0 10px; font-family: var(--font-title); font-weight: 900; font-size: clamp(34px, 5.8vw, 68px); line-height: 0.98; letter-spacing: -0.01em; text-transform: uppercase;
  background: linear-gradient(180deg, #ffffff 0%, #dedcd5 34%, #8d8b84 49%, #f1f0eb 52%, #c2c0b9 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent; filter: drop-shadow(0 2px 0 rgba(0,0,0,0.6)) drop-shadow(0 18px 30px rgba(0,0,0,0.6)); }
#dx-tagline { margin: 0 auto; max-width: 560px; color: var(--paper-dim); font-size: 14px; line-height: 1.6; }

/* ═════════ carousel ═════════ */
#dx-carousel-stage { position: relative; flex: 1; min-height: 0; width: 100%; perspective: 1500px; perspective-origin: 50% 40%; cursor: grab; outline: 0; overflow: hidden; touch-action: pan-y; }
#dx-carousel-stage.dragging { cursor: grabbing; }
#dx-arc { position: absolute; left: 50%; top: 50%; width: 0; height: 0; transform-style: preserve-3d; }

.dx-arc-card { position: absolute; left: 0; top: 0; width: var(--cw, 300px); height: var(--ch, 400px); margin: calc(var(--ch, 400px) / -2) 0 0 calc(var(--cw, 300px) / -2);
  padding: 12px 12px 0; border-radius: 22px; display: flex; flex-direction: column; will-change: transform, opacity, filter; backface-visibility: hidden; cursor: pointer;
  transition: box-shadow 0.4s var(--ease); }
.dx-arc-card.focus { box-shadow: var(--shadow-card), 0 0 0 1px rgba(255,255,255,0.4), 0 40px 90px -20px rgba(0,0,0,0.9), 0 0 120px -30px rgba(255,255,255,0.18); }
.dx-arc-card * { pointer-events: none; }

.dx-tile { position: relative; flex: 1; min-height: 0; border-radius: 14px; overflow: hidden; background: #09090c;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.65), 0 2px 8px rgba(0,0,0,0.6) inset; }
.dx-tile::before { content: ''; position: absolute; inset: 0; background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.10) 1px, transparent 1.5px); background-size: 18px 18px; }
.dx-tile img, .dx-tile iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; object-fit: cover; opacity: 0; transition: opacity 0.5s var(--ease); }
.dx-tile img.in, .dx-tile iframe.in { opacity: 1; }
.dx-tile .ph { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.28); }
.dx-tile.soon .ph { flex-direction: column; gap: 10px; }
.dx-tile .ph svg { width: 34px; height: 34px; }
.dx-tile .spin { width: 22px; height: 22px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.15); border-top-color: rgba(255,255,255,0.7); animation: dxSpin 0.9s linear infinite; }
@keyframes dxSpin { to { transform: rotate(360deg); } }
.dx-badge {
  position: absolute; z-index: 3; top: 10px; right: 10px;
  display: inline-flex; align-items: center; justify-content: center; gap: 4px;
  padding: 4px 8px; border-radius: 99px;
  font-family: var(--font-mono); font-size: 9px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  background: var(--metal-light); color: var(--ink);
  box-shadow: 0 1px 0 #fff inset, 0 0 0 1px rgba(0,0,0,0.6);
  line-height: 1;
}
.dx-badge.icon-badge { padding: 5px 8px; }
.dx-badge svg { width: 12px; height: 12px; display: block; stroke-width: 2; }
.dx-badge.locked {
  background: var(--metal-dark);
  color: #eeede8;
  box-shadow: 0 1px 0 rgba(255,255,255,0.2) inset, 0 0 0 1px #000;
}
.dx-badge.unlocked {
  background: var(--metal-light);
  color: var(--ink);
  box-shadow: 0 1px 0 #fff inset, 0 0 0 1px rgba(0,0,0,0.6);
}

.dx-card-foot { flex: none; padding: 12px 6px 14px; display: flex; align-items: flex-end; justify-content: space-between; gap: 10px; }
.dx-card-foot .n { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; color: var(--ink-3); }
.dx-card-foot h3 { margin: 2px 0 2px; font-family: var(--font-title); font-weight: 800; font-size: 20px; letter-spacing: 0.01em; text-transform: uppercase; color: var(--ink); }
.dx-card-foot p { margin: 0; font-size: 11px; color: var(--ink-3); }
.dx-open { flex: none; width: 34px; height: 34px; border-radius: 50%; background: var(--metal-dark); display: grid; place-items: center; color: #eee; box-shadow: 0 1px 0 rgba(255,255,255,0.2) inset, 0 0 0 1px #000; }
.dx-open svg { width: 15px; height: 15px; }

.dx-carousel-hint { flex: none; padding: 6px 0 10px; color: var(--paper-dim); opacity: 0.65; }

/* ═════════ index strip ═════════ */
#dx-index-strip { flex: none; display: flex; gap: 8px; justify-content: center; padding: 0 20px 22px; max-width: 100%; overflow-x: auto; overflow-y: hidden; }
.dx-index-chip { flex: none; display: flex; align-items: center; gap: 8px; height: 34px; padding: 0 15px 0 11px; border: 0; border-radius: 99px; cursor: pointer; background: rgba(255,255,255,0.05); color: var(--paper);
  font-weight: 700; font-size: 12px; box-shadow: 0 0 0 1px var(--line-dark) inset; transition: all 0.25s var(--ease); }
.dx-index-chip .no { font-family: var(--font-mono); font-size: 9.5px; color: var(--paper-dim); }
.dx-index-chip:hover { background: rgba(255,255,255,0.11); }
.dx-index-chip.on { background: var(--metal-light); color: var(--ink); box-shadow: 0 1px 0 #fff inset, 0 0 0 1px #000, 0 8px 18px -8px #000; }
.dx-index-chip.on .no { color: var(--ink-3); }
.dx-index-chip.soon { opacity: 0.55; }

/* ═════════ effect view ═════════ */
#dx-effect-view { position: absolute; inset: 0; opacity: 0; transform: translateY(14px); transition: opacity 0.5s var(--ease), transform 0.6s var(--ease); }
body.in-effect #dx-effect-view { opacity: 1; transform: none; }
#dx-effect-frame { width: 100%; height: 100%; border: 0; background: var(--bg); display: block; }

/* ═════════ upsell ═════════ */
#dx-upsell { position: fixed; inset: 0; z-index: 900; display: flex; align-items: center; justify-content: center; background: rgba(4,4,6,0.72); backdrop-filter: blur(8px); }
#dx-upsell[hidden] { display: none; }
.dx-upsell-card { width: min(440px, calc(100vw - 32px)); padding: 28px; animation: dxPop 0.3s var(--ease); }
.dx-upsell-card h2 { margin: 8px 0 8px; font-family: var(--font-title); font-weight: 800; font-size: 26px; text-transform: uppercase; }
.dx-upsell-card p { margin: 0 0 22px; color: var(--ink-2); line-height: 1.55; font-size: 13.5px; }
.dx-up-actions { display: flex; gap: 10px; justify-content: flex-end; }

/* ── Architectural Monolith "X" Emblem (Dark Studio) ── */
.dx-brand-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(1000px, 105vw, 82vh);
  aspect-ratio: 1 / 1;
  pointer-events: none;
  z-index: 0;
  color: rgba(255, 255, 255, 0.035);
}
.dx-brand-watermark svg {
  width: 100%;
  height: 100%;
  display: block;
}