[hidden]{display:none!important}
.dx-page{overflow:hidden;height:100dvh}
.dx{position:fixed;inset:var(--nav) 0 0 0;background:radial-gradient(120% 90% at 30% 40%,#fbf9f4,var(--bg) 60%,#e9e4d8)}
.dx canvas{position:absolute;inset:0;width:100%;height:100%;display:block;outline:0}

.loading{position:absolute;inset:0;display:grid;place-content:center;justify-items:center;gap:14px;color:var(--ink2);font-size:.95rem;transition:opacity .4s}
.loading.done{opacity:0;pointer-events:none}
.loading__bar{display:block;width:200px;height:3px;background:var(--line);border-radius:3px;overflow:hidden}
.loading__bar b{display:block;height:100%;width:var(--p,8%);background:var(--accent);transition:width .25s}

/* intro over the outside view */
.intro{position:absolute;inset-inline-start:clamp(20px,5vw,64px);top:50%;transform:translateY(-50%);width:min(500px,44vw);display:grid;gap:20px;justify-items:start;transition:opacity .45s var(--ease),transform .45s var(--ease)}
.intro h1{font-size:clamp(2.6rem,5.2vw,5rem);max-width:9ch}
html[lang="ar"] .intro h1{max-width:12ch}
.intro p{color:var(--ink2);font-size:1.15rem;max-width:34ch}
.intro small{color:var(--ink2);font-size:.9rem}
.intro.gone{opacity:0;transform:translateY(-50%) translateX(-14px);pointer-events:none}
html[dir="rtl"] .intro.gone{transform:translateY(-50%) translateX(14px)}

/* view controls */
.viewbar{position:absolute;inset-inline-start:clamp(16px,3vw,40px);bottom:24px;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.seg{display:flex;background:var(--surface);border:1px solid var(--line);border-radius:99px;padding:3px}
.seg__b{padding:0 16px;min-height:38px;border-radius:99px;font-size:.9rem;color:var(--ink2);transition:background-color .2s,color .2s}
.seg__b.on{background:var(--ink);color:var(--bg)}
@media (hover:hover) and (pointer:fine){.seg__b:not(.on):hover{color:var(--ink);background:var(--accent-soft)}}
#looks.off{opacity:.4;pointer-events:none}

/* tooltip */
.tip{position:fixed;z-index:30;pointer-events:none;background:var(--ink);color:var(--bg);padding:7px 12px;border-radius:10px;font-size:.88rem;white-space:nowrap;transform:translate(14px,14px)}
.tip b{color:#7fe3d1;font-weight:600;margin-inline-end:6px}

/* side panel */
.panel{scroll-padding-block:70px 110px;position:absolute;top:16px;bottom:16px;inset-inline-end:16px;width:min(410px,92vw);background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:22px 22px 20px;overflow-y:auto;overscroll-behavior:contain;box-shadow:0 20px 50px -30px rgba(19,32,28,.35);animation:panelIn .55s var(--ease) both}
@keyframes panelIn{from{opacity:0;transform:translateX(24px)}}
html[dir="rtl"] .panel{animation-name:panelInR}
@keyframes panelInR{from{opacity:0;transform:translateX(-24px)}}
.dots{display:flex;gap:6px;list-style:none;margin-bottom:16px}
.dots li{height:4px;flex:1;border-radius:4px;background:var(--line);transition:background-color .3s}
.dots li.on,.dots li.done{background:var(--accent)}
.pstep{display:none}
.pstep.on{display:block;animation:stepIn .4s var(--ease) both;padding-bottom:84px}
@keyframes stepIn{from{opacity:0;transform:translateY(8px)}}
.panel h2{font-size:1.75rem;letter-spacing:-.03em;line-height:1.1}
html[lang="ar"] .panel h2{letter-spacing:0;line-height:1.3;font-weight:750}
.panel h3{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink2);margin:20px 0 8px;font-weight:600}
html[lang="ar"] .panel h3{text-transform:none;letter-spacing:0;font-size:.9rem}
.hint{color:var(--ink2);font-size:.95rem;margin:8px 0 16px}

/* tooth chart */
.chart{display:grid;gap:6px}
.chart__side{display:flex;justify-content:space-between;font-size:.74rem;color:var(--ink2);padding:0 2px}
.chart__row{display:grid;grid-template-columns:repeat(8,1fr) 10px repeat(8,1fr);gap:3px;direction:ltr}
.chart__row i{display:block}
.tb{aspect-ratio:1/1.25;border-radius:8px;font-size:.66rem;font-variant-numeric:tabular-nums;color:var(--ink2);box-shadow:inset 0 0 0 1px var(--line);background:var(--bg);transition:background-color .15s,color .15s,box-shadow .15s,transform .12s var(--ease);min-width:0}
.tb:active{transform:scale(.94)}
.tb.hov,.tb:hover{box-shadow:inset 0 0 0 1.5px var(--accent);color:var(--ink)}
.tb.sel{background:var(--accent);color:#fff;box-shadow:none}
.quads{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:12px}
.chip{padding:0 14px;min-height:38px;border-radius:99px;font-size:.88rem;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--line);transition:background-color .2s,color .2s,box-shadow .2s;text-align:start}
.chip:active{transform:scale(.97)}
.chip.on{background:var(--accent);color:#fff;box-shadow:none}
@media (hover:hover) and (pointer:fine){.chip:not(.on):hover{box-shadow:inset 0 0 0 1.5px var(--ink)}}
.picked ul{list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.picked li{display:inline-flex;align-items:center;gap:8px;padding:6px 6px 6px 12px;background:var(--accent-soft);border-radius:99px;font-size:.84rem}
html[dir="rtl"] .picked li{padding:6px 12px 6px 6px}
.picked li button{width:22px;height:22px;border-radius:50%;background:rgba(19,32,28,.1);font-size:.8rem;line-height:1;display:grid;place-items:center}
.empty{color:var(--ink2);font-size:.9rem}
.pactions{display:flex;align-items:center;justify-content:space-between;gap:12px;position:sticky;bottom:-20px;background:linear-gradient(to top,var(--surface) 70%,transparent);padding:14px 0 6px;margin-top:-64px}
.pactions--col{flex-direction:column;align-items:stretch}
.pactions--col .link{align-self:center}
.link{color:var(--ink2);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--line);font-size:.92rem;padding:10px 4px;min-height:44px}
.link:hover{color:var(--ink)}
.btn[disabled]{opacity:.4;pointer-events:none}

/* step 2 */
.chips{display:flex;flex-wrap:wrap;gap:7px}
.field{display:grid;gap:10px;margin-top:22px;font-size:.95rem}
.field>span{font-weight:550}
.field b{color:var(--accent);font-variant-numeric:tabular-nums}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:30px;background:transparent;direction:ltr}
input[type=range]::-webkit-slider-runnable-track{height:6px;border-radius:6px;background:linear-gradient(to right,var(--accent) var(--fill,33%),var(--line) var(--fill,33%))}
input[type=range]::-moz-range-track{height:6px;border-radius:6px;background:var(--line)}
input[type=range]::-moz-range-progress{height:6px;border-radius:6px;background:var(--accent)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:24px;height:24px;border-radius:50%;background:#fff;border:2px solid var(--accent);margin-top:-9px;box-shadow:0 2px 6px rgba(0,0,0,.18)}
input[type=range]::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:#fff;border:2px solid var(--accent)}
.scale{display:flex;justify-content:space-between;color:var(--ink2);font-size:.78rem}
.scale i{font-style:normal}
.check{display:flex;align-items:flex-start;gap:12px;margin-top:18px;font-size:.95rem;cursor:pointer;min-height:44px}
.check{position:relative}
.check input{position:absolute;opacity:0;inset-inline-start:0;top:0;width:22px;height:22px;margin:0}
.check i{flex:none;width:22px;height:22px;border-radius:7px;box-shadow:inset 0 0 0 1.5px var(--ink2);margin-top:1px;transition:background-color .2s,box-shadow .2s;position:relative}
.check input:checked+i{background:var(--accent);box-shadow:none}
.check input:checked+i::after{content:"";position:absolute;left:7px;top:3px;width:6px;height:11px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)}
.check--warn input:checked+i{background:#b3261e}
.check input:focus-visible+i{outline:2px solid var(--accent);outline-offset:3px}

/* step 3 */
.urg{margin-top:14px;padding:16px 18px;border-radius:16px;font-weight:600;line-height:1.3}
.urg small{display:block;font-weight:400;margin-top:6px;font-size:.92rem;opacity:.9}
.urg--emergency{background:#fbe3e0;color:#7d1710}
.urg--soon{background:#fdebd0;color:#6b3a00}
.urg--week{background:var(--accent-soft);color:#08574c}
.urg--routine{background:var(--bg2);color:var(--ink)}
.sumline{margin-top:14px;font-size:.92rem;color:var(--ink2)}
.causes{list-style:none;display:grid;gap:10px}
.causes li{padding:12px 14px;border-radius:14px;background:var(--bg);box-shadow:inset 0 0 0 1px var(--line)}
.causes b{display:block;font-weight:600;margin-bottom:2px}
.causes span{color:var(--ink2);font-size:.92rem}
.plain{padding-inline-start:20px;display:grid;gap:6px;font-size:.95rem;color:var(--ink2)}
.disc{margin-top:18px;font-size:.84rem;color:var(--ink2);padding:12px 14px;border-radius:12px;background:var(--bg2)}

.credit{position:absolute;inset-inline-start:clamp(16px,3vw,40px);bottom:4px;font-size:.7rem;color:var(--ink2);opacity:.7;max-width:60vw}
.viewbar{bottom:28px}

.sheet__h{display:none}

/* ===== phones and small screens: bottom sheet, big touch targets, scene framed above the sheet ===== */
@media (max-width:860px){
  .dx-page{overflow:hidden}
  .intro{inset-inline:20px;top:16px;transform:none;width:auto;gap:12px}
  .intro h1{font-size:clamp(2rem,9.5vw,2.8rem);max-width:11ch}
  html[lang="ar"] .intro h1{max-width:14ch}
  .intro p{font-size:1rem;max-width:36ch}
  .intro.gone,html[dir="rtl"] .intro.gone{transform:translateY(-14px)}
  .viewbar{top:10px;bottom:auto;inset-inline:10px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;gap:8px;padding:2px 0}
  .viewbar::-webkit-scrollbar{display:none}
  .viewbar .seg{flex:none}
  .seg__b{min-height:40px;padding:0 14px;font-size:.85rem}
  .panel{top:auto;bottom:30px;height:41%;inset-inline:8px;width:auto;border-radius:22px;padding:0 16px;animation-name:panelUp;transition:height .35s var(--ease)}
  html[dir="rtl"] .panel{animation-name:panelUp}
  @keyframes panelUp{from{opacity:0;transform:translateY(28px)}}
  .panel.tall{height:80%}
  .panel.min{height:auto;max-height:46%}
  .panel.min .dots{display:none}
  .panel.min .pstep.on>*:not(h2):not(.picked):not(.pactions){display:none}
  .sheet__h{display:grid;place-items:center;width:calc(100% + 32px);margin:0 -16px 0;height:26px;position:sticky;top:0;z-index:3;background:var(--surface);border-radius:22px 22px 0 0}
  .sheet__h i{width:44px;height:5px;border-radius:5px;background:var(--line)}
  .dots{margin-bottom:8px}
  .dots li{height:3px}
  .panel h2{font-size:1.3rem}
  .hint{font-size:.8rem;margin:2px 0 8px;line-height:1.3}
  .chart{gap:5px}
  .chart__side{display:none}
  .chart__row{grid-template-columns:repeat(8,1fr);gap:4px}
  .chart__row i{display:none}
  .tb{aspect-ratio:auto;min-height:40px;font-size:.84rem;border-radius:10px}
  .quads{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;margin-inline:-16px;padding-inline:16px}
  .quads::-webkit-scrollbar{display:none}.quads .chip{flex:none}
  .picked h3{margin:14px 0 6px}
  .chip{min-height:44px}
  .picked li button{width:30px;height:30px}
  .pstep.on{padding-bottom:6px}
  .pactions{position:sticky;bottom:0;margin-top:10px;padding:8px 0 8px;background:var(--surface);border-top:1px solid var(--line)}
  .pactions--col{padding-bottom:10px}
  .credit{inset-inline:14px;bottom:6px;max-width:none;font-size:.62rem;line-height:1.3}
}
/* landscape phones: keep the side panel, narrower */
@media (max-width:860px) and (orientation:landscape) and (max-height:520px){
  .panel,.panel.tall,.panel.min{top:8px;bottom:30px;height:auto;max-height:none;inset-inline-start:auto;inset-inline-end:8px;width:min(340px,46vw);animation-name:panelIn}
  html[dir="rtl"] .panel{inset-inline-end:8px;animation-name:panelInR}
  .sheet__h{display:none}
  .panel.min .pstep.on>*{display:revert}
  .viewbar{top:8px;inset-inline-start:10px;inset-inline-end:auto;max-width:calc(100% - 372px)}
  .intro{inset-inline-start:24px;inset-inline-end:auto;top:50%;transform:translateY(-50%);width:min(50vw,420px)}
  .intro h1{font-size:2rem}
  .intro.gone{transform:translateY(-50%) translateX(-14px)}
  html[dir="rtl"] .intro.gone{transform:translateY(-50%) translateX(14px)}
}