:root{color-scheme:dark;font-family:Avenir Next,SF Pro Display,Segoe UI,sans-serif;background:radial-gradient(circle at top,rgba(38,106,122,.55),transparent 35%),linear-gradient(180deg,#07131a,#03080b);color:#f4fcff;--bg-card: rgba(7, 18, 25, .78);--bg-card-strong: rgba(9, 24, 33, .92);--border: rgba(141, 233, 255, .16);--accent: #7cf3ff;--accent-strong: #35d3ef;--text-soft: rgba(235, 248, 252, .72);--shadow: 0 16px 40px rgba(0, 0, 0, .34)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;min-height:100%;overflow:hidden}body{background:radial-gradient(circle at top,rgba(38,106,122,.55),transparent 35%),linear-gradient(180deg,#07131a,#03080b)}button,input{font:inherit}.hidden{display:none!important}.app-shell{position:relative;min-height:100vh;overflow:hidden;background:radial-gradient(circle at 50% 0%,rgba(124,243,255,.18),transparent 32%),linear-gradient(180deg,#07131a,#020608)}.scene-host{position:absolute;inset:0;background:radial-gradient(circle at center,rgba(124,243,255,.08),transparent 45%),linear-gradient(180deg,#06131bad,#03080be6)}.scene-host video,.scene-host canvas,.scene-host .a-canvas{width:100%!important;height:100%!important;object-fit:cover}.ui-layer{position:relative;z-index:10;min-height:100vh;display:flex;flex-direction:column;justify-content:space-between;padding:max(18px,env(safe-area-inset-top)) 16px max(18px,env(safe-area-inset-bottom)) 16px;background:linear-gradient(180deg,#02080ba6,#02080b1f 26%,#02080b2e 70%,#02080bb8)}.card{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:var(--bg-card);border:1px solid var(--border);border-radius:24px;box-shadow:var(--shadow)}.start-screen{width:min(100%,540px);margin:auto;padding:28px 24px;animation:panel-in .42s ease}.eyebrow{margin:0 0 10px;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:#7cf3ffd6}.start-screen h1,.completion-card h2,.modal-card h2{margin:0 0 12px;font-size:clamp(1.8rem,4vw,2.4rem);line-height:1.05}.lead,.completion-card p,.modal-card p,.debug-text,.footnote{margin:0;color:var(--text-soft);line-height:1.55}.footnote{margin-top:14px;font-size:.9rem}.topbar{display:flex;justify-content:center;pointer-events:none}.status-chip{min-width:min(100%,560px);padding:14px 16px;border-radius:18px;background:#06131bb8;border:1px solid rgba(124,243,255,.16);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);box-shadow:0 12px 30px #0003}.status-label{display:block;margin-bottom:4px;font-size:.78rem;color:#7cf3ffc7;text-transform:uppercase;letter-spacing:.1em}.status-chip strong{display:block;font-size:1rem}.distance-text{display:block;margin-top:6px;font-size:.9rem;color:var(--text-soft)}.action-panel{display:grid;gap:10px;margin-top:auto;margin-bottom:12px;animation:panel-up .26s ease}.button{width:100%;min-height:56px;border:0;border-radius:18px;padding:14px 18px;font-weight:700;letter-spacing:.01em;color:#f8feff;transition:transform .16s ease,opacity .16s ease,background .16s ease,box-shadow .16s ease}.button:active{transform:translateY(1px) scale(.995)}.button:disabled{opacity:.55}.button-primary{background:linear-gradient(180deg,#44d3e8,#1a9db7);box-shadow:0 12px 30px #1dadc747}.button-secondary{background:#ffffff14;border:1px solid rgba(255,255,255,.08)}.button-ghost{background:#06131bcc;border:1px solid rgba(124,243,255,.12)}.button-large{margin-top:24px}.debug-panel{padding:14px;margin-top:12px}.debug-fab{position:fixed;right:16px;bottom:calc(22px + env(safe-area-inset-bottom));z-index:20;width:auto;min-height:44px;padding:10px 14px;border:1px solid rgba(124,243,255,.18);border-radius:999px;background:#06131bd1;color:#f8feff;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);box-shadow:var(--shadow)}.debug-header{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.debug-title{margin:0 0 4px;font-size:.92rem;font-weight:700}.toggle{display:inline-flex;align-items:center;gap:10px;color:var(--text-soft);font-size:.92rem}.toggle input{width:18px;height:18px;accent-color:var(--accent-strong)}.debug-actions{display:grid;gap:10px;margin-top:14px}.toast{position:fixed;left:50%;bottom:calc(200px + env(safe-area-inset-bottom));transform:translate(-50%);width:min(calc(100vw - 32px),420px);padding:12px 14px;border-radius:16px;background:#071219db;border:1px solid rgba(124,243,255,.14);box-shadow:var(--shadow);text-align:center;animation:toast-in .2s ease}.modal,.completion-overlay{position:fixed;inset:0;z-index:30}.modal-backdrop{position:absolute;inset:0;background:#0000008a}.modal-card,.completion-card{position:relative;width:min(calc(100vw - 32px),520px);margin:auto;padding:26px 22px}.modal{display:grid}.modal-card{align-self:end;margin-bottom:max(18px,env(safe-area-inset-bottom));animation:panel-up .24s ease}.completion-overlay{display:grid;place-items:center;background:#02080bb3;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.completion-card{animation:panel-in .26s ease}.icon-button{position:absolute;top:12px;right:12px;width:40px;height:40px;border:0;border-radius:50%;background:#ffffff14;color:#fff;font-size:1.5rem}@keyframes panel-in{0%{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes panel-up{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@keyframes toast-in{0%{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%)}}@media(min-width:720px){.ui-layer{padding-inline:20px}.action-panel,.debug-panel{width:min(520px,100%);align-self:center}}