/* ====================================================================
   XLAB solutions — USE CASES module  (Kacheln + Dossier-Floatinglayer)
   Drop-in for xlab-solutions.com. Built on css/tokens.css + css/styles.css
   (light glass theme). All selectors are scoped under .uc-* / #uc- so the
   block can be pasted into the existing site without collisions.
   ==================================================================== */

#cases-uc .uc-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(18px,2.2vw,28px);
  margin-top:56px; align-items:stretch;
}
.uc-col{ display:flex; flex-direction:column; gap:clamp(18px,2.2vw,28px); min-width:0; }
@media (max-width:1024px){ #cases-uc .uc-grid{ grid-template-columns:repeat(2,1fr); } .uc-col{ display:contents; } }
@media (max-width:680px){ #cases-uc .uc-grid{ grid-template-columns:1fr; } }

/* Stable hover: tiles share a fixed-height column. By default the lower tile
   fills the column so all column bottoms align. On hover the hovered tile takes
   its content size (its description slides in) and the *other* tile in the
   column flexes — its image compresses to absorb the growth — so the column
   height, and the module's bottom edge, never move. */
.uc-col > .uc-tile{ min-height:0; }
.uc-col > .uc-tile:first-child{ flex:0 0 auto; }
.uc-col > .uc-tile:last-child{ flex:1 1 auto; }
.uc-col:has(.uc-tile:hover) > .uc-tile:not(:hover){ flex:1 1 auto; }
.uc-col:has(.uc-tile:hover) > .uc-tile:hover{ flex:0 0 auto; }

/* per-case categorical accents */
#cases-uc .uc-grid{ --uc-accent:#2E6BF2; }
.uc-c1{ --uc-accent:#C71B6A; } /* FTTX Rollout · Magenta */
.uc-c2{ --uc-accent:#FF7A45; } /* Agentic Marketing · Orange */
.uc-c3{ --uc-accent:#2FB6C9; } /* Data Intelligence · Cyan */
.uc-c4{ --uc-accent:#2E6BF2; } /* Automotive · Signal Blue */
.uc-c5{ --uc-accent:#12A37E; } /* eCommerce · Emerald */
.uc-c6{ --uc-accent:#6E5AD6; } /* Journey · Violet */

/* ---- TILE ---------------------------------------------------------- */
.uc-tile{
  position:relative; display:flex; flex-direction:column; min-width:0;
  background:var(--glass); border:1px solid var(--glass-line); border-radius:26px;
  overflow:hidden; cursor:pointer; text-align:left; font:inherit; color:inherit; padding:0; min-height:0;
  box-shadow:0 1px 2px rgba(15,35,60,0.05), 0 22px 44px -32px rgba(15,35,60,0.24);
  transition:transform var(--dur) var(--easing), box-shadow var(--dur) var(--easing), border-color var(--dur) var(--easing);
}
.uc-tile:hover, .uc-tile:focus-visible{
  transform:translateY(-6px); outline:none;
  border-color:color-mix(in srgb, var(--uc-accent) 46%, var(--glass-line));
  box-shadow:0 30px 60px -34px rgba(15,35,60,0.34);
}
.uc-tile .uc-thumb{ position:relative; aspect-ratio:16/10; overflow:hidden; background:var(--glass-2); flex:1 1 auto; min-height:0; }
.uc-tile .uc-thumb img{ width:100%; height:100%; object-fit:cover; display:block;
  transition:transform .7s var(--easing); }
.uc-tile:hover .uc-thumb img{ transform:scale(1.05); }
.uc-tile .uc-thumb svg{ display:block; width:100%; height:100%; }
.uc-tile .uc-thumb::after{ content:""; position:absolute; inset:0; pointer-events:none;
  background:linear-gradient(180deg, color-mix(in srgb,var(--uc-accent) 24%, transparent) 0%, transparent 40%);
  mix-blend-mode:multiply; }
.uc-idx{ position:absolute; top:15px; left:15px; z-index:3;
  font-family:var(--font-mono); font-weight:500; font-size:12px; letter-spacing:0.04em;
  color:#fff; background:var(--uc-accent); padding:6px 12px; border-radius:40px;
  border:1.5px solid rgba(255,255,255,0.85); box-shadow:0 4px 14px -4px rgba(4,16,30,0.5); }

.uc-tile .uc-body{ padding:clamp(22px,2.4vw,30px); display:flex; flex-direction:column; flex:0 0 auto; }
.uc-cat{ font-family:var(--font-mono); font-weight:500; font-size:11px; letter-spacing:0.16em;
  text-transform:uppercase; color:var(--uc-accent); display:flex; align-items:center; gap:9px; }
.uc-cat::before{ content:""; width:18px; height:5px; border-radius:30px; background:currentColor; flex:none; }
.uc-tile h3{ font-weight:900; letter-spacing:-0.025em; font-size:clamp(19px,1.5vw,22px); line-height:1.1;
  margin:13px 0 0; color:var(--white); text-wrap:balance; }

/* hover-reveal description */
.uc-reveal{ display:grid; grid-template-rows:0fr; transition:grid-template-rows .45s var(--easing); }
.uc-reveal > div{ overflow:hidden; min-height:0; }
.uc-tile:hover .uc-reveal, .uc-tile:focus-visible .uc-reveal, .uc-tile.uc-open .uc-reveal{ grid-template-rows:1fr; }
.uc-desc{ font-size:14px; color:var(--ice-dim); line-height:1.55; margin:13px 0 0; }

.uc-spacer{ flex:1; }
.uc-open-row{ display:inline-flex; align-self:flex-start; align-items:center; gap:9px; margin-top:20px;
  font-family:var(--font-sans); font-weight:700; font-size:13.5px; line-height:1; white-space:nowrap;
  color:#fff; background:var(--uc-accent); padding:11px 20px; border-radius:40px;
  box-shadow:0 8px 22px -12px color-mix(in srgb,var(--uc-accent) 65%, transparent);
  transition:transform .25s var(--easing), box-shadow .25s var(--easing); }
.uc-open-row svg{ transition:transform .35s var(--easing); }
.uc-tile:hover .uc-open-row{ transform:translateY(-2px); box-shadow:0 14px 32px -12px color-mix(in srgb,var(--uc-accent) 80%, transparent); }
.uc-tile:hover .uc-open-row svg{ transform:translateX(4px); }

.uc-foot{ display:flex; gap:7px; flex-wrap:wrap; margin-top:18px; padding-top:16px; border-top:1px solid var(--glass-line); }
.uc-tag{ font-family:var(--font-sans); font-weight:500; font-size:12px; letter-spacing:0.01em; text-transform:none;
  color:var(--ice-dim); background:var(--glass-2); border-radius:30px; padding:5px 12px; }

/* ====================================================================
   DOSSIER — floating layer
   ==================================================================== */
.uc-scrim{
  position:fixed; inset:0; z-index:1000; background:rgba(8,18,34,0.55);
  backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px);
  display:flex; justify-content:center; align-items:flex-start;
  padding:clamp(14px,4vh,52px) clamp(12px,4vw,40px);
  opacity:0; transition:opacity .4s ease; overflow-y:auto;
}
.uc-scrim.uc-show{ opacity:1; }
.uc-dossier{
  position:relative; width:min(980px,100%); background:#eef1f6;
  border-radius:24px; overflow:hidden; box-shadow:0 50px 120px -30px rgba(4,16,30,0.7);
  transform:translateY(34px) scale(0.975); opacity:0;
  transition:transform .5s var(--easing), opacity .45s ease;
}
.uc-scrim.uc-show .uc-dossier{ transform:none; opacity:1; }

.uc-close{ position:absolute; top:18px; right:18px; z-index:5; width:42px; height:42px; border-radius:50%;
  border:1px solid rgba(255,255,255,0.4); background:rgba(255,255,255,0.16); color:#fff; cursor:pointer;
  display:grid; place-items:center; backdrop-filter:blur(4px); transition:background .25s, transform .25s; }
.uc-close:hover{ background:rgba(255,255,255,0.3); transform:rotate(90deg); }

/* hero */
.uc-dhero{ position:relative; padding:clamp(30px,4vw,52px) clamp(28px,4vw,56px) clamp(34px,4vw,46px);
  color:#fff; overflow:hidden; background:#0A1828; }
.uc-dhero::before{ content:""; position:absolute; inset:0;
  background:radial-gradient(120% 140% at 88% -10%, color-mix(in srgb,var(--uc-accent) 78%, transparent), transparent 60%); }
.uc-dhero::after{ content:""; position:absolute; right:-60px; bottom:-90px; width:300px; height:300px; border-radius:50%;
  background:color-mix(in srgb,var(--uc-accent) 30%, transparent); filter:blur(10px); opacity:0.5; }
.uc-dhero > *{ position:relative; z-index:1; }
.uc-dnum{ font-family:var(--font-mono); font-weight:500; font-size:13px; letter-spacing:0.12em;
  display:inline-flex; align-items:center; gap:10px; white-space:nowrap; }
.uc-dnum i{ width:30px; height:6px; border-radius:30px; background:#fff; opacity:0.9; }
.uc-dhero .uc-cat{ color:rgba(255,255,255,0.72); margin-top:18px; letter-spacing:0.2em; }
.uc-dhero .uc-cat::before{ display:none; }
.uc-dhero h2{ font-weight:900; letter-spacing:-0.032em; font-size:clamp(26px,3.4vw,44px); line-height:1.04;
  margin:10px 0 0; max-width:20ch; text-wrap:balance; color:#fff; }
.uc-dsub{ font-size:clamp(15px,1.4vw,18px); color:rgba(255,255,255,0.82); max-width:60ch; line-height:1.55; margin:16px 0 0; }
.uc-principles{ display:flex; flex-wrap:wrap; gap:8px; margin-top:22px; }
.uc-principles span{ font-family:var(--font-mono); font-size:10.5px; letter-spacing:0.05em; line-height:1;
  color:#fff; background:rgba(255,255,255,0.14); border:1px solid rgba(255,255,255,0.24);
  border-radius:30px; padding:8px 13px; white-space:nowrap; }

/* body */
.uc-dbody{ padding:clamp(28px,3.6vw,46px) clamp(28px,4vw,56px) clamp(34px,4vw,52px);
  display:grid; gap:clamp(28px,4vh,42px); }
.uc-block .uc-blabel{ font-family:var(--font-mono); font-weight:500; font-size:11px; letter-spacing:0.2em;
  text-transform:uppercase; color:var(--uc-accent); display:flex; align-items:center; gap:11px; margin-bottom:18px; }
.uc-block .uc-blabel::before{ content:""; width:22px; height:6px; border-radius:30px; background:currentColor; flex:none; }
.uc-summary{ font-size:clamp(15px,1.3vw,17.5px); line-height:1.62; color:#1E2D44; max-width:72ch; }
.uc-summary strong{ color:#0A1828; font-weight:700; }

/* prevent long German compound words from overflowing / overlapping inside the
   dossier and tile boxes at any width (lang="de" enables hyphenation) */
.uc-dhero h2, .uc-tile h3{ overflow-wrap:anywhere; word-break:break-word; hyphens:auto; }
.uc-dsub, .uc-cat, .uc-summary, .uc-step .uc-st, .uc-step .uc-sd,
.uc-benefit .uc-bt, .uc-benefit .uc-bd, .uc-fk, .uc-fv, .uc-outcome,
.uc-jstage .uc-jl, .uc-jstage .uc-jv, .uc-ag-ch .uc-ag-l, .uc-ag-ch .uc-ag-d,
.uc-ag-rule, .uc-desc, .uc-diagram .uc-dtitle, .uc-diagram .uc-dsub, .uc-shot .uc-cap{ overflow-wrap:break-word; hyphens:auto; }
.uc-frow{ min-width:0; }
.uc-fk, .uc-fv{ min-width:0; }

/* screenshot */
.uc-shot{ border-radius:16px; overflow:hidden; border:1px solid var(--glass-line);
  box-shadow:0 22px 50px -34px rgba(4,16,30,0.5); background:#fff; }
.uc-shot img{ width:100%; display:block; }
.uc-shot .uc-cap{ font-family:var(--font-mono); font-size:10.5px; letter-spacing:0.12em; text-transform:uppercase;
  color:var(--ice-dim); padding:12px 16px; border-top:1px solid var(--glass-line); display:flex; gap:9px; align-items:center; }
.uc-shot .uc-cap::before{ content:""; width:8px; height:8px; border-radius:50%; background:var(--uc-accent); flex:none; }

/* process flow */
.uc-flow{ display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:14px; }
.uc-step{ position:relative; border:1px solid var(--glass-line); border-radius:16px; background:#fff; padding:20px 18px; }
.uc-step .uc-sn{ font-family:var(--font-mono); font-weight:500; font-size:13px; color:var(--uc-accent); }
.uc-step .uc-st{ font-weight:700; font-size:14.5px; margin:9px 0 0; letter-spacing:-0.01em; color:#0A1828; }
.uc-step .uc-sd{ font-size:12.5px; color:var(--ice-dim); line-height:1.45; margin:7px 0 0; }
.uc-step .uc-conn{ position:absolute; top:50%; right:-9px; z-index:2; color:var(--ice-faint); transform:translateY(-50%); }
@media (max-width:680px){ .uc-step .uc-conn{ display:none; } }

/* benefits */
.uc-benefits{ display:grid; grid-template-columns:repeat(auto-fit,minmax(160px,1fr)); gap:12px; }
.uc-benefit{ border:1px solid var(--glass-line); border-radius:14px; background:#fff; padding:18px; }
.uc-benefit .uc-bt{ font-weight:700; font-size:14.5px; letter-spacing:-0.01em; display:flex; align-items:center; gap:9px; color:#0A1828; }
.uc-benefit .uc-bt .uc-dot{ width:10px; height:10px; border-radius:50%; background:var(--uc-accent); flex:none; }
.uc-benefit .uc-bd{ font-size:12.5px; color:var(--ice-dim); line-height:1.46; margin:9px 0 0; }
.uc-benefit .uc-bmetric{ font-weight:900; font-size:21px; letter-spacing:-0.02em; color:#0A1828; margin-top:11px; }
.uc-bdim{ display:inline-flex; align-items:center; gap:6px; margin-top:13px; font-family:var(--font-mono);
  font-size:10.5px; font-weight:500; letter-spacing:0.05em; text-transform:uppercase; padding:5px 10px 5px 8px; border-radius:8px; }
.uc-bdim .uc-arr{ font-size:13px; line-height:1; }
.uc-bdim.up{ color:#0E8A68; background:color-mix(in srgb,#12A37E 14%, transparent); }
.uc-bdim.down{ color:var(--uc-accent); background:color-mix(in srgb,var(--uc-accent) 14%, transparent); }

/* facts */
.uc-facts{ border:1px solid var(--glass-line); border-radius:16px; overflow:hidden; background:#fff; }
.uc-frow{ display:grid; grid-template-columns:230px 1fr; gap:18px; padding:14px 22px; border-bottom:1px solid var(--glass-line); align-items:baseline; }
.uc-frow:last-child{ border-bottom:none; }
.uc-fk{ font-family:var(--font-mono); font-size:11.5px; letter-spacing:0.04em; color:var(--uc-accent); text-transform:uppercase; }
.uc-fv{ font-size:14.5px; color:#1E2D44; font-weight:500; }
@media (max-width:560px){ .uc-frow{ grid-template-columns:1fr; gap:3px; } }

/* outcomes */
.uc-outcomes{ display:flex; flex-wrap:wrap; gap:10px; }
.uc-outcome{ display:flex; align-items:flex-start; gap:10px; border:1px solid var(--glass-line); border-radius:30px;
  background:#fff; padding:10px 16px 10px 14px; font-size:13px; color:#1E2D44; font-weight:500; }
.uc-outcome .uc-oc{ width:8px; height:8px; border-radius:50%; background:var(--uc-accent); flex:none; margin-top:6px; }

/* signature diagram wrapper */
.uc-diagram{ border:1px solid var(--glass-line); border-radius:18px; background:#fff; padding:26px;
  box-shadow:0 18px 40px -34px rgba(4,16,30,0.45); }
.uc-diagram .uc-dtitle{ font-weight:700; font-size:15px; color:#0A1828; }
.uc-diagram .uc-dsub{ font-family:var(--font-mono); font-size:11px; letter-spacing:0.14em; text-transform:uppercase; color:var(--ice-faint); margin-top:3px; }
.uc-diagram .uc-art{ position:relative; border:1px solid var(--glass-line); border-radius:12px; overflow:hidden; margin-top:18px;
  background:linear-gradient(105deg,#f8fbfe 0%, #ffffff 52%, color-mix(in srgb,var(--uc-accent) 7%, #fff) 100%); }
.uc-diagram .uc-art svg{ display:block; width:100%; height:auto; }
.uc-filters{ display:flex; flex-wrap:wrap; gap:8px; margin-top:16px; }
.uc-filter{ font-family:var(--font-mono); font-size:10.5px; letter-spacing:0.04em; color:var(--uc-accent); white-space:nowrap;
  border:1px solid color-mix(in srgb,var(--uc-accent) 35%, var(--glass-line)); border-radius:30px; padding:6px 12px;
  background:color-mix(in srgb,var(--uc-accent) 7%, #fff); }

/* journey track */
.uc-jtrack{ position:relative; display:grid; grid-template-columns:repeat(5,1fr); margin-top:30px; }
.uc-jtrack::before{ content:""; position:absolute; left:8%; right:8%; top:11px; height:3px; border-radius:30px;
  background:linear-gradient(90deg,#6E5AD6,#2E6BF2); }
.uc-jstage{ display:flex; flex-direction:column; align-items:center; text-align:center; position:relative; z-index:1; }
.uc-jstage .uc-jd{ width:24px; height:24px; border-radius:50%; background:#fff; border:3px solid var(--uc-accent);
  box-shadow:0 0 0 5px color-mix(in srgb,var(--uc-accent) 14%, transparent); }
.uc-jstage .uc-jn{ font-family:var(--font-mono); font-size:10px; letter-spacing:0.1em; color:var(--ice-faint); margin-top:13px; }
.uc-jstage .uc-jl{ font-weight:700; font-size:13px; margin-top:5px; letter-spacing:-0.01em; color:#0A1828; }
.uc-jstage .uc-jv{ font-size:11.5px; color:var(--ice-dim); margin-top:5px; line-height:1.4; max-width:16ch; }
@media (max-width:620px){ .uc-jtrack{ grid-template-columns:1fr 1fr; gap:22px 8px; } .uc-jtrack::before{ display:none; } }

/* agentic activation */
.uc-ag-flow{ display:grid; grid-template-columns:1fr auto 1.4fr; align-items:center; gap:22px; margin-top:20px; }
.uc-ag-rules{ display:flex; flex-direction:column; gap:8px; }
.uc-ag-rule{ font-family:var(--font-mono); font-size:11px; letter-spacing:0.04em; color:#1E2D44;
  border:1px solid var(--glass-line); border-left:4px solid var(--uc-accent); border-radius:8px; padding:9px 12px; background:#fff; }
.uc-ag-core{ display:flex; flex-direction:column; align-items:center; justify-content:center; gap:9px; text-align:center;
  font-weight:700; font-size:13px; letter-spacing:-0.01em; color:#fff;
  background:linear-gradient(150deg,var(--uc-accent), color-mix(in srgb,var(--uc-accent) 55%, #04101E));
  width:140px; height:140px; border-radius:50%; padding:16px;
  box-shadow:0 16px 40px -18px color-mix(in srgb,var(--uc-accent) 70%, transparent); }
.uc-ag-core .uc-ag-dot{ width:14px; height:14px; border-radius:50%; background:#fff; }
.uc-ag-channels{ display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.uc-ag-ch{ border:1px solid var(--glass-line); border-radius:12px; padding:14px; background:#fff; border-top:4px solid var(--uc-accent); }
.uc-ag-ch .uc-ag-l{ font-weight:700; font-size:14px; letter-spacing:-0.01em; color:#0A1828; }
.uc-ag-ch .uc-ag-d{ font-size:12px; color:var(--ice-dim); margin-top:4px; line-height:1.4; }
@media (max-width:680px){ .uc-ag-flow{ grid-template-columns:1fr; gap:18px; } .uc-ag-core{ margin:0 auto; } }

@media (prefers-reduced-motion: no-preference){
  .uc-art .uc-dash{ stroke-dasharray:4 7; animation:ucflow 1.05s linear infinite; }
}
@keyframes ucflow{ to{ stroke-dashoffset:-22; } }

body.uc-noscroll{ overflow:hidden; }

/* dark-mode fallback (site can re-enable dark theme) */
body[data-theme="dark"] #cases-uc .uc-tile{ background:var(--glass); }
body[data-theme="dark"] .uc-dossier{ background:#0b1626; }
body[data-theme="dark"] .uc-summary{ color:#C4D0DF; }
body[data-theme="dark"] .uc-summary strong{ color:#fff; }
body[data-theme="dark"] .uc-step,
body[data-theme="dark"] .uc-benefit,
body[data-theme="dark"] .uc-facts,
body[data-theme="dark"] .uc-outcome,
body[data-theme="dark"] .uc-diagram,
body[data-theme="dark"] .uc-shot{ background:#0d1c2e; }