:root{--jade:#12332c;--jade2:#1f5a49;--mist:#eef3ec;--bone:#f8f6ef;--gold:#b8893d;--ink:#17342b;--soft:#4d6b5d;--serif:"Iowan Old Style","Palatino Linotype","Noto Serif",Georgia,serif;--sans:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
*{box-sizing:border-box}html,body{margin:0;height:100%}
body{font-family:var(--sans);background:var(--mist);color:var(--ink);overflow:hidden;-webkit-tap-highlight-color:transparent}
button{font:inherit;cursor:pointer;touch-action:manipulation}
.hidden,[hidden]{display:none!important}
:focus-visible{outline:3px solid #e4b862;outline-offset:2px}

/* Trang chào: vòng thở là hình ảnh nhận diện */
.intro{position:fixed;inset:0;display:grid;place-items:center;padding:24px;text-align:center;overflow:auto;background:linear-gradient(180deg,rgba(238,243,236,.93),rgba(238,243,236,.8)),url(assets/temple-hero.svg) center/cover}
.ring-bg{position:absolute;width:min(78vmin,620px);aspect-ratio:1;border-radius:50%;border:1px solid rgba(31,90,73,.3);background:radial-gradient(circle,rgba(184,137,61,.14),transparent 68%);animation:breathe 10s ease-in-out infinite;pointer-events:none}
@keyframes breathe{50%{transform:scale(.8)}}
.intro-in{position:relative;max-width:560px;padding:12px 0}
.brand{font-family:var(--serif);font-size:20px;letter-spacing:.14em;color:var(--jade2)}
.intro h1{font-family:var(--serif);font-weight:500;font-size:clamp(34px,6.4vw,64px);line-height:1.15;margin:.5em 0 .4em;color:var(--jade)}
.intro p{line-height:1.75;color:var(--soft);margin:.6em 0}
.name-field{display:flex;flex-direction:column;gap:6px;text-align:left;width:min(100%,340px);margin:22px auto 6px}
.name-field label{font-size:14px;font-weight:600;color:var(--jade2)}
.name-field input{padding:13px 15px;border:1.5px solid #9db4a4;border-radius:12px;background:#fff;color:var(--ink);font-size:16px}
.name-error{min-height:16px;margin:0!important;font-size:13px;color:#a22e25!important}
.intro-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:14px}
.hint{font-size:13px}.fine{font-size:12px;opacity:.85}
.cta{background:var(--jade2);color:#fff;border:0;border-radius:999px;padding:14px 26px;font-weight:600}
.cta:hover{background:var(--jade)}
.ghost{background:transparent;border:1.5px solid var(--jade2);color:var(--jade2);border-radius:999px;padding:12.5px 24px;font-weight:600}
.ghost:hover{background:#e3eee6}

/* Trải nghiệm toàn màn hình */
#experience{position:fixed;inset:0}
#scene3d{position:absolute;inset:0;background:linear-gradient(#a9c4bb,#d8d2b8)}
#scene3d canvas{width:100%;height:100%;display:block;touch-action:none}
.glass{background:rgba(18,51,44,.58);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff}
.topbar{position:absolute;top:0;left:0;right:0;display:flex;align-items:center;gap:12px;padding:calc(12px + env(safe-area-inset-top)) 14px 0;pointer-events:none}
.topbar>*{pointer-events:auto}
.brand-sm,#greeting,.topbar .icon{white-space:nowrap}#greeting{min-width:0;overflow:hidden;text-overflow:ellipsis}.zen-on .dock,.zen-on .pad,.zen-on .topbar,.zen-on .scene-help{display:none}
.brand-sm{font-family:var(--serif);letter-spacing:.12em;padding:9px 16px;border-radius:999px}
#greeting{font-size:14px;padding:9px 14px;border-radius:999px;margin-right:auto}
#greeting:empty{display:none}
.topbar .icon{border:0;border-radius:999px;padding:9px 16px;margin-left:auto}
.scene-status{position:absolute;top:calc(62px + env(safe-area-inset-top));left:50%;transform:translateX(-50%);max-width:88vw;padding:9px 16px;font-size:13px;text-align:center;border-radius:14px;pointer-events:none;z-index:3}
.scene-status:empty{display:none}
.scene-help{position:absolute;left:18px;bottom:88px;font-size:12px;padding:8px 12px;border-radius:10px;pointer-events:none}
@media(hover:none){.scene-help{display:none}}
.scene-loading{position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;gap:14px;align-items:center;justify-content:center;background:linear-gradient(150deg,#f4f7ed,#dcebdd);color:#2e5948;text-align:center;padding:20px}
.scene-loading small{color:#587666}
.loading-spinner{width:46px;height:46px;border:4px solid #bfd7c4;border-top-color:#3b8062;border-radius:50%;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.dock{position:absolute;left:50%;transform:translateX(-50%);bottom:calc(14px + env(safe-area-inset-bottom));display:flex;gap:2px;padding:6px;border-radius:999px;max-width:96vw;z-index:4}
.dock button{background:transparent;border:0;color:#fff;padding:11px 16px;border-radius:999px;font-size:14px;white-space:nowrap}
.dock button:hover{background:rgba(255,255,255,.16)}
.dock .main{background:var(--gold);color:#2b1d07;font-weight:600}
.dock .main:hover{background:#c99a4c}
@media(max-width:480px){.dock button{padding:10px 9px;font-size:13px}.brand-sm{padding:8px 12px}}

.pad{display:none;position:absolute;left:14px;bottom:calc(84px + env(safe-area-inset-bottom));grid-template:"a u ." "l d r" / 52px 52px 52px;gap:4px;z-index:3}
@media(pointer:coarse){.pad{display:grid}}
.pad button{width:52px;height:52px;border-radius:50%;border:0;font-size:20px;background:rgba(18,51,44,.5);color:#fff;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.pad button:active{background:rgba(184,137,61,.85)}
.pad [data-move=up]{grid-area:u}.pad [data-move=left]{grid-area:l}.pad [data-move=down]{grid-area:d}.pad [data-move=right]{grid-area:r}

/* Chế độ tĩnh tâm */
#zen{position:absolute;inset:0;z-index:6;display:grid;place-items:center;align-content:center;gap:26px;background:rgba(8,22,19,.5);color:#f3efe2;text-align:center;padding:24px}
.ring-wrap{position:relative;display:grid;place-items:center;width:min(66vmin,380px);aspect-ratio:1}
.ring{position:absolute;inset:0;border-radius:50%;border:2px solid rgba(243,239,226,.75);background:radial-gradient(circle,rgba(184,137,61,.4),rgba(184,137,61,.06) 70%);transform:scale(.5);transition:transform 4s ease-in-out}
#ringTxt{position:relative;font-family:var(--serif);font-size:clamp(22px,4.4vw,32px)}
#zenTime{font-size:22px;font-variant-numeric:tabular-nums;opacity:.9}
#zenDone h2{font-family:var(--serif);font-weight:500;font-size:30px;margin:0 0 8px}
#zenDone p{margin:0 0 18px;opacity:.9;line-height:1.7}
#zenStop{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.4);color:#fff;border-radius:999px;padding:11px 24px}
#zenDone .cta{background:var(--gold);color:#2b1d07}

/* Bottom sheet */
dialog{border:0;padding:0;background:var(--bone);color:var(--ink);width:min(100vw,520px);max-height:88dvh;border-radius:22px 22px 0 0;margin:auto auto 0;box-shadow:0 -20px 60px #0006;overflow:auto}
@media(min-width:700px){dialog{margin:auto;border-radius:22px}}
dialog::backdrop{background:rgba(8,22,19,.5)}
.sh-head{display:flex;justify-content:space-between;align-items:center;padding:20px 22px 6px}
.sh-head h2{margin:0;font-family:var(--serif);font-weight:500;font-size:25px}
.sh-head button{border:0;background:none;font-size:32px;line-height:1;color:var(--soft);padding:4px 8px}
#shBody{padding:6px 22px calc(24px + env(safe-area-inset-bottom))}
#shBody h3{font-family:var(--serif);font-weight:500;font-size:19px;margin:24px 0 4px}
.lead{line-height:1.7;color:var(--soft);margin:.4em 0 .8em}
.seg{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0 16px}
.seg button{flex:1;min-width:64px;padding:11px 8px;border:1.5px solid #c5d4ca;background:#fff;border-radius:12px;color:var(--ink)}
.seg button.on{background:var(--jade2);border-color:var(--jade2);color:#fff}
.row{display:flex;align-items:center;gap:12px;margin:12px 0}
.row>label{flex:0 0 80px;font-size:14px}
.row input[type=range]{flex:1;accent-color:var(--jade2);min-width:0}
select{flex:1;padding:11px;border-radius:10px;border:1.5px solid #c5d4ca;background:#fff;font:inherit;color:var(--ink);min-width:0}
.big{font-family:var(--serif);font-size:58px;text-align:center;margin:8px 0;font-variant-numeric:tabular-nums;color:var(--jade2)}
#shBody .cta,#shBody .ghost{width:100%;margin-top:10px}

@media(prefers-reduced-motion:reduce){.ring-bg{animation:none}.loading-spinner{animation-duration:3s}}


/* Tâm Viên v1.1 — nhận diện và bố cục có chiều sâu */
:root{--jade:#153c32;--gold:#d8a94c}
.intro{display:flex;justify-content:flex-start;align-items:center;text-align:left;padding:clamp(24px,6vw,100px);background:linear-gradient(90deg,rgba(11,35,31,.94) 0%,rgba(13,39,34,.86) 35%,rgba(17,40,34,.3) 72%,rgba(17,40,34,.1) 100%),url('assets/tam-vien-garden.jpg') center 48%/cover no-repeat;background-color:#1a3931;color:#f9f3e7}
.intro:after{content:'';position:absolute;inset:0;pointer-events:none;background:linear-gradient(0deg,rgba(5,24,20,.32),transparent 34%),radial-gradient(circle at 78% 25%,rgba(255,208,116,.13),transparent 35%)}
.intro-in{z-index:1;width:min(100%,610px);max-width:610px;padding:clamp(18px,3vw,44px);background:linear-gradient(120deg,rgba(13,39,34,.64),rgba(13,39,34,.16));border:1px solid rgba(255,242,206,.2);border-radius:26px;box-shadow:0 25px 90px rgba(0,0,0,.25);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.intro .ring-bg{display:none}
.intro .brand{color:#f2d18a;font-size:clamp(22px,2.5vw,30px);letter-spacing:.07em}
.intro .brand small{display:block;margin-top:9px;font-family:var(--sans);font-size:10px;font-weight:600;letter-spacing:.22em;color:#d4dcca}
.brand-symbol{font-size:1.15em;color:#e7b85d}
.intro h1{color:#fff9ea;font-size:clamp(36px,4.3vw,61px);letter-spacing:-.025em;text-shadow:0 3px 20px rgba(0,0,0,.2)}
.intro p{color:#e0e8df;max-width:500px}
.intro .name-field{width:100%;max-width:390px;margin:20px 0 8px}
.intro .name-field label{color:#f3e8cc}
.intro .name-field input{background:rgba(255,255,255,.95);border-color:#d6c8a8}
.intro .intro-actions{justify-content:flex-start}
.intro .cta{box-shadow:0 7px 24px rgba(222,167,65,.28);background:linear-gradient(145deg,#e8bb64,#c99435);color:#30240e}
.intro .ghost{background:rgba(16,47,39,.35);color:#fff8e8;border-color:#e5c789}
.intro .hint,.intro .fine{color:#c8d6ca}
#scene3d:after{content:'';position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,rgba(14,34,27,.22),transparent 20%,transparent 73%,rgba(14,34,27,.12));z-index:1}
.glass{background:rgba(14,38,32,.67);border:1px solid rgba(255,246,215,.2);box-shadow:0 6px 24px rgba(10,30,23,.12);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.brand-sm{color:#f4d28c;font-weight:600}
.dock{background:rgba(17,44,37,.82);border:1px solid rgba(255,235,190,.3);box-shadow:0 12px 35px rgba(10,30,23,.25);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.dock .main{background:linear-gradient(145deg,#f0c772,#c89942)}
.scene-help{line-height:1.5}
@media(max-width:700px){.intro{justify-content:center;align-items:flex-end;padding:18px;background-position:58% center;background-image:linear-gradient(0deg,rgba(10,35,29,.96),rgba(10,35,29,.48) 72%,rgba(10,35,29,.13)),url('assets/tam-vien-garden.jpg')}.intro-in{padding:23px 19px;max-width:100%;margin-bottom:10px}.intro h1{font-size:clamp(31px,9vw,45px)}.intro .intro-actions{gap:9px}.intro .fine{font-size:11px}}

/* v1.2 — thông báo vị trí trong không gian liên thông */
.zone-label{position:absolute;z-index:5;top:70px;left:50%;transform:translateX(-50%);padding:9px 19px;border-radius:100px;color:#f9e9c2;font-size:12px;font-weight:650;letter-spacing:.06em;pointer-events:none;white-space:nowrap}
@media(max-width:700px){.zone-label{top:82px;font-size:11px;padding:8px 12px}.scene-help{max-width:calc(100vw - 25px)}}

/* Tâm Viên 1.4 – contextual meditation seating controls */
.seat-controls{position:absolute;z-index:12;top:86px;left:50%;transform:translateX(-50%);min-width:min(440px,92vw);max-width:92vw;padding:12px 15px;border:1px solid rgba(232,217,174,.55);border-radius:16px;background:rgba(20,49,39,.88);color:#fff9e9;text-align:center;box-shadow:0 12px 36px rgba(0,0,0,.16);font:500 13px/1.5 system-ui,sans-serif;backdrop-filter:blur(10px)}
.seat-controls[hidden],.seat-actions button[hidden]{display:none!important}
.seat-actions{display:flex;justify-content:center;gap:8px;margin-top:8px;flex-wrap:wrap}
.seat-actions button{border:1px solid #e7d2a2;background:#e9c98c;color:#243c30;border-radius:999px;padding:8px 15px;font-weight:700;cursor:pointer}
.seat-actions button:hover{background:#fff0c7}
@media(max-width:600px){.seat-controls{top:112px;font-size:12px;padding:8px}.seat-actions button{padding:7px 11px}}

/* v1.4.1 — cân chỉnh trang chào, không để dòng cuối lẻ chữ */
.intro{padding:clamp(20px,4.5vw,72px)}
.intro-in{box-sizing:border-box;width:min(100%,690px);max-width:690px;padding:clamp(24px,3.3vw,42px);border-radius:22px}
.intro .brand{font-size:clamp(22px,2.1vw,27px)}
.intro .brand small{font-size:9px;letter-spacing:.18em;margin-top:5px}
.intro h1{font-size:clamp(32px,3.05vw,45px);line-height:1.19;letter-spacing:-.025em;margin:24px 0 18px;max-width:610px;text-wrap:balance}
.intro p{font-size:14px;line-height:1.65;max-width:570px;margin:8px 0}
.intro .name-field{max-width:430px;margin:18px 0 10px}
.intro .intro-actions{gap:10px;margin-top:12px}
.intro .hint{font-size:12px;margin-top:13px}
.intro .fine{font-size:11px;line-height:1.55;max-width:570px}
@media(min-width:1050px){.intro-in{width:min(690px,52vw)}.intro h1{font-size:clamp(37px,3.15vw,45px)}}
@media(max-width:700px){.intro{padding:14px;align-items:center}.intro-in{width:100%;padding:clamp(20px,5vw,30px);margin:0}.intro h1{font-size:clamp(29px,7.4vw,38px);line-height:1.22;margin:18px 0 14px}.intro p{font-size:13px;line-height:1.55}.intro .name-field{margin:14px 0 8px}.intro .intro-actions{gap:8px}.intro .intro-actions button{font-size:13px}}
@media(max-width:380px){.intro{padding:9px}.intro-in{padding:17px 16px}.intro h1{font-size:28px}.intro .intro-actions{flex-direction:column;align-items:stretch}.intro .intro-actions button{width:100%}}
@media(max-height:680px){.intro{align-items:flex-start}.intro-in{margin-block:auto}.intro h1{margin:14px 0 10px}.intro .name-field{margin:10px 0 5px}}

/* v1.4.2 — Bảng điều khiển âm thanh */
dialog:has(.audio-panel){width:min(calc(100vw - 24px),560px);max-height:min(90dvh,790px);border-radius:22px;box-shadow:0 24px 90px #001c1850}
dialog:has(.audio-panel) .sh-head{padding:22px 26px 8px}
dialog:has(.audio-panel) .sh-head h2{font-size:25px;font-weight:600}
dialog:has(.audio-panel) #shBody{padding:0 26px 24px}
.audio-panel{font-size:14px;color:var(--ink)}
.audio-intro{font-size:13px;line-height:1.55;color:var(--soft);margin:5px 0 18px;max-width:450px}
.audio-section{padding:17px 18px 18px;border:1px solid #dce5dc;border-radius:16px;background:#fff;margin-bottom:12px;box-shadow:0 3px 14px #1b463008}
.audio-section-heading{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.audio-icon{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:#eaf2e9;color:#1e624c;font-size:22px;flex:none}
.audio-section-heading>div{flex:1;min-width:0}
.audio-section-heading h3{font:600 16px/1.25 system-ui,sans-serif!important;margin:0 0 3px!important}
.audio-section-heading p{margin:0;color:#6c8076;font-size:12px;line-height:1.4}
.audio-state{font-size:11px;border-radius:99px;background:#f0f2ef;color:#61736b;padding:5px 9px;white-space:nowrap}
.audio-state.active{background:#e1f1e6;color:#1e6846}
.audio-field-label{display:block;font-size:12px;font-weight:650;margin:0 0 7px;color:#465d51}
.audio-panel select{display:block;width:100%;padding:10px 12px;border:1px solid #d5e1d8;border-radius:10px;background:#f9fbf8;font-size:13px;margin-bottom:14px}
.audio-control{margin:12px 0 15px}
.audio-control-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px;font-size:12px}
.audio-control-head label{font-weight:550;color:#40594b}
.audio-control-head output{font-variant-numeric:tabular-nums;color:#547566;font-size:12px}
.audio-control input[type=range]{display:block;width:100%;height:5px;margin:0;accent-color:#236b50;cursor:pointer}
.audio-nature{display:grid;grid-template-columns:1fr;gap:0}
.audio-nature .audio-control{margin:4px 0 12px}
.audio-primary,.audio-secondary{border-radius:10px;padding:11px 13px;font:600 13px system-ui,sans-serif;cursor:pointer;min-height:40px}
.audio-primary{border:1px solid #1f624b;background:#1f624b;color:white;width:100%}
.audio-primary:hover{background:#164c3b}
.audio-primary:disabled{opacity:.45;cursor:not-allowed}
.audio-secondary{background:white;border:1px solid #bfd3c6;color:#215d47}
.audio-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.audio-text-button{border:0;background:none;color:#386a54;font-size:12px;padding:4px 0;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.audio-hint{font-size:11px;color:#698074;margin:10px 0 0;line-height:1.45}
.audio-footnote{font-size:11px;color:#78867d;line-height:1.5;margin:12px 4px 0}
@media(max-width:560px){dialog:has(.audio-panel){width:100vw;max-height:92dvh;border-radius:18px 18px 0 0}dialog:has(.audio-panel) .sh-head{padding:17px 18px 6px}dialog:has(.audio-panel) #shBody{padding:0 16px 20px}.audio-section{padding:14px}}

/* v1.4.4: balanced two-line welcome heading */
.intro .welcome-heading{font-size:clamp(30px,2.65vw,39px);line-height:1.18;letter-spacing:-.027em;max-width:none;margin:22px 0 17px;text-wrap:initial}
.intro .welcome-heading span{display:block;white-space:nowrap}
@media(max-width:700px){.intro .welcome-heading{font-size:clamp(23px,5.25vw,34px);margin:17px 0 13px}}
@media(max-width:430px){.intro .welcome-heading{font-size:clamp(21px,5.1vw,26px)}.intro .welcome-heading span{white-space:normal}}

/* v1.4.5 — tách nhãn khu vực, thông báo và thao tác nhanh */
.zone-label{position:absolute!important;top:calc(65px + env(safe-area-inset-top))!important;left:16px!important;right:auto!important;transform:none!important;max-width:calc(100vw - 32px);z-index:4!important;font-size:12px!important;pointer-events:none}
.scene-status{top:auto!important;bottom:calc(86px + env(safe-area-inset-bottom))!important;left:50%!important;transform:translateX(-50%)!important;z-index:6!important;max-width:min(460px,90vw)}
.music-transport{display:grid;grid-template-columns:1fr 1.5fr 1fr;gap:8px;margin-top:12px}.music-transport button{min-width:0;padding:10px 6px;font-size:12px}
.dock{flex-wrap:wrap;justify-content:center;border-radius:22px;max-width:min(95vw,740px)}.dock button{padding:10px 12px}
@media(max-width:600px){.dock{width:calc(100vw - 16px);bottom:calc(8px + env(safe-area-inset-bottom));gap:0;padding:4px}.dock button{font-size:11px;padding:9px 7px;flex:1 1 auto}.scene-status{bottom:calc(108px + env(safe-area-inset-bottom))!important}.zone-label{top:calc(108px + env(safe-area-inset-top))!important}.music-transport{gap:5px}}

/* Cộng đồng trực tuyến — v1.4.6 */
.presence-pill{position:fixed;top:62px;right:15px;z-index:15;display:flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.35);padding:9px 13px;border-radius:24px;background:rgba(16,47,39,.83);color:#f8f5e9;font:600 12px/1.3 var(--sans);cursor:pointer;max-width:min(310px,90vw)}
.presence-dot{height:7px;width:7px;flex:none;border-radius:50%;background:#c8bfa2}.presence-pill.connected .presence-dot{background:#7cdb9b;box-shadow:0 0 0 3px rgba(124,219,155,.16)}
.presence-panel{position:fixed;top:108px;right:15px;z-index:25;width:min(350px,calc(100vw - 30px));max-height:min(500px,65vh);overflow-y:auto;padding:17px;background:rgba(247,246,239,.97);border:1px solid #d8dfd5;border-radius:17px;color:#1c3b32;box-shadow:0 18px 65px rgba(0,0,0,.2);font-family:var(--sans)}
.presence-panel[hidden]{display:none!important}.presence-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.presence-head strong{font-size:15px}.presence-head button{border:0;background:transparent;font-size:25px;color:#49665b;cursor:pointer}.presence-metric{display:flex;align-items:baseline;gap:11px;margin:18px 0 12px}.presence-metric strong{font-size:34px;line-height:1}.presence-metric span{font-size:12px;color:#527267}.presence-state,.presence-note{font-size:11px;color:#59766b;line-height:1.6}.presence-list{display:grid;gap:7px;margin-top:12px}.presence-person{display:flex;align-items:center;gap:8px;padding:8px 10px;background:#eef2e9;border-radius:9px;font-size:12px}.presence-person:before{content:'●';color:#4b9973}.presence-person em{margin-left:auto;font-size:10px;font-style:normal;color:#59766b}.presence-optin{display:flex;align-items:center;gap:7px;font-size:12px;margin:12px 0}.presence-optin input{accent-color:#28634e}
@media(max-width:700px){.presence-pill{top:58px;right:10px;padding:8px 10px;font-size:11px}.presence-panel{top:102px;right:10px}}