/* 3D story sections and crosshair cursor */
/* scroll-driven 3D stories (survey + cadastre) */
.survey{height:600vh;padding:0;border-block:1px solid var(--line);background:radial-gradient(1200px 700px at 70% 55%,#0E1A2E,var(--bg) 70%)}
.sv-sticky{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden}
#sv{position:absolute;inset:0;width:100%;height:100%;display:block}
.sv-ui{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;pointer-events:none}
.sv-ui .inner{max-width:380px;padding-block:90px 40px}
.sv-ui h2{font-size:clamp(30px,3.6vw,48px)}
.sv-steps{list-style:none;margin:26px 0 0;padding:0;display:flex;flex-direction:column;gap:4px}
.st{padding:10px 0 10px 16px;border-left:2px solid var(--line2);opacity:.4;transition:opacity .4s,border-color .4s}
.st.on{opacity:1;border-color:var(--gold)}
.st i{display:block;font:500 11px var(--f-mono);color:var(--gold);font-style:normal;letter-spacing:.14em}
.st b{display:block;font:700 19px/1.2 var(--f-display);font-stretch:78%;text-transform:uppercase;margin-top:2px}
.st span{display:block;color:var(--muted);font-size:14.5px;line-height:1.5;max-height:0;overflow:hidden;transition:max-height .5s,margin .5s}
.st.on span{max-height:120px;margin-top:6px}
.sv-meter{display:flex;align-items:center;gap:14px;margin-top:22px;font-size:12px;color:var(--muted)}
.sv-meter .sv-bar{flex:1;height:2px;background:var(--line2);position:relative;max-width:200px}
.sv-meter .sv-bar i{position:absolute;inset:0;background:var(--gold);transform-origin:0 50%;transform:scaleX(0)}
.cadas #cad{position:absolute;inset:0;width:100%;height:100%;display:block}
.cadas{height:640vh;background:radial-gradient(1200px 700px at 65% 60%,#0F1D33,var(--bg) 70%)}

/* readable text over the scene, layout switched by JS (.narrow) */
.sv-sticky::before{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(90deg,var(--bg) 0%,rgba(7,12,20,.82) 26%,rgba(7,12,20,0) 50%)}
.survey.narrow .sv-sticky::before{background:linear-gradient(180deg,var(--bg) 0%,rgba(7,12,20,.82) 32%,rgba(7,12,20,0) 54%)}
.survey.narrow .sv-ui{justify-content:flex-start}
.survey.narrow .sv-ui .inner{padding-top:84px;max-width:560px}
.survey.narrow .sv-ui h2{font-size:clamp(24px,5.4vw,34px)}
.survey.narrow .st{display:none}
.survey.narrow .st.on{display:block}
.survey.narrow .sv-steps{margin-top:14px}
@media (max-height:520px) and (orientation:landscape){.sv-ui{justify-content:flex-start}.sv-ui .inner{padding-block:70px 8px;max-width:310px}.sv-ui .eyebrow{font-size:10px}.sv-ui h2{font-size:20px;margin-top:8px}.st{display:none}.st.on{display:block;padding:6px 0 6px 12px}.st b{font-size:16px}.st span{font-size:13px}.sv-steps{margin-top:10px}.sv-meter{margin-top:12px}}

/* crosshair cursor */
.xh{position:fixed;left:0;top:0;width:0;height:0;z-index:60;pointer-events:none;will-change:transform}
.xh .c{position:absolute;left:-13px;top:-13px;width:26px;height:26px;border:1px solid rgba(255,196,0,.8);border-radius:50%;transition:transform .2s}
.xh .h,.xh .v{position:absolute;background:rgba(255,196,0,.55)}
.xh .h{left:-24px;top:0;width:48px;height:1px}
.xh .v{left:0;top:-24px;width:1px;height:48px}
.xh span{position:absolute;left:18px;top:14px;font:400 10px var(--f-mono);color:var(--gold);white-space:nowrap;opacity:.85}
.xh.hot .c{transform:scale(1.7)}
@media (pointer:coarse){.xh{display:none}}