/* Town-square 3D demo. A merge of the old panaudia.com main.css,
   controls.css and square-controls.css, adapted to the new site:
   fonts from /fonts, site navy/teal, plain Unicode glyphs on the
   touch pads (the old page used FontAwesome Pro, which is licensed
   and stays out of this repo).

   Palette: the tokens below mirror css/lasa.css. Every overlay on
   the 3D view (the join panel, the audio/head-tracking panel, the
   instructions bar) is the same translucent navy card with the same
   radius, text and accent; the only other colours are the danger
   red for muted/errors and the ink greys on the light scene. */

:root {
    --navy: #18334b;
    --navy-ink: #10243a;
    --ink: #1b2430;
    --ink-soft: #4a5561;
    --on-navy: #e9eef3;
    --on-navy-soft: #a9b8c6;
    --accent: #6fc9d8;
    --accent-ink: #1c7a8a;
    --danger: #ff8a8a;
    --scene: #f4f4f4;

    --panel: rgba(24, 51, 75, 0.85);        /* navy at 85 % over the scene */
    --panel-line: rgba(233, 238, 243, 0.18); /* on-navy hairlines and tracks */
    --panel-radius: 12px;
}

@font-face {
    font-family: Quicksand;
    font-style: normal;
    font-optical-sizing: auto;
    font-weight: 300 700;
    src: url('/fonts/Quicksand-VariableFont_wght.ttf');
    font-display: swap;
}

* {
    box-sizing: border-box;
    overscroll-behavior: none;
}

body {
    margin: 0;
    background-color: var(--scene);
    color: var(--ink);
    font-family: Quicksand, "Avenir Next", "Helvetica Neue", Arial, sans-serif;
    font-size: 13px;
    --decoration-display: block;
}

h2 {
    font-weight: normal;
}

a {
    color: var(--accent-ink);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* ── Header ─────────────────────────────────────────────────────── */

.ident {
    z-index: 1000;
    position: absolute;
    top: 0;
    left: 0;
    height: 64px;
    padding: .5rem 1rem;
    display: flex;
    align-items: center;
}

.ident > a:hover {
    text-decoration: none;
}

.pan-logo {
    width: 48px;
    margin: 4px 0 4px 8px;
}

.title {
    box-sizing: border-box;
    display: inline-block;
    font-family: Quicksand, sans-serif;
    color: var(--navy);
    font-size: 1.3rem;
    letter-spacing: 4px;
    margin-left: 20px;
    padding-top: 2px;
    padding-bottom: 2px;
}

/* ── Join panel ─────────────────────────────────────────────────── */

.side {
    width: 600px;
    background-color: var(--panel);
    color: var(--on-navy);
    position: absolute;
    padding-top: 20px;
    padding-bottom: 60px;
    top: 10%;
    left: calc((100% - 600px) / 2);
    z-index: 1;
    border-radius: var(--panel-radius);
    text-align: center;
    font-size: 1.2rem;
    line-height: 1.5;
}

.side a {
    color: var(--accent);
}

.info-box {
    margin: 40px 40px 0;
}

/* Body copy on the card is one size (the .side font-size); only the
   heading differs. The headphones line is soft, not smaller. */
.headphones {
    color: var(--on-navy-soft);
    margin: 0 40px 16px;
}

#error-block {
    display: none;
    text-align: center;
}

.info-icon {
    width: 80px;
    margin-top: 10px;
    display: inline-block;
}

.colours-picker {
    width: 160px;
    height: 160px;
    position: relative;
    display: inline-block;
}

.picker-wrapper {
    position: absolute;
    border: 1px solid var(--panel-line);
}

#outer-picker-wrapper {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    top: 0;
    left: 0;
}

#inner-picker-wrapper {
    width: calc(100% - 50px);
    height: calc(100% - 50px);
    border-radius: calc((100% - 0px) / 2);
    top: 25px;
    left: 25px;
}

input[type=color] {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    opacity: 0;
    display: block;
    border: none;
}

/* The name field and the Enter button share one width and height. */
.square-form,
button,
.spinner {
    width: 400px;
    max-width: calc(100% - 80px);
    height: 42px;
}

.square-form {
    margin-top: 10px;
    font-size: 1.5rem;
    font-family: inherit;
    padding: 3px 10px;
    border: none;
    border-radius: 4px;
    text-align: center;
}

.square-form:focus {
    outline: 2px solid var(--accent);
}

button {
    display: inline-block;
    line-height: 1.3;
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    text-transform: uppercase;
    margin: 16px 0 0;
    border-radius: 4px;
    background: var(--accent);
    border: 2px solid var(--accent);
    color: var(--navy-ink);
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.02em;
    padding: 0 18px;
    font-family: inherit;
}

button:hover {
    filter: brightness(1.08);
}

.disabled {
    background: transparent;
    border-color: var(--on-navy-soft);
    color: var(--on-navy-soft);
    opacity: 0.5;
}

.disabled:hover {
    filter: none;
}

.disabled:hover {
    cursor: default;
}

.hidden {
    display: none !important;
}

.spinner {
    display: inline-block;
    line-height: 1.3;
    text-align: center;
    vertical-align: middle;
    user-select: none;
    margin: 16px 0 0;
    padding: 0;
}

.lds-dual-ring {
    display: inline-block;
    width: 42px;
    height: 42px;
}

.lds-dual-ring:after {
    content: " ";
    display: block;
    width: 30px;
    height: 30px;
    margin: 4px;
    border-radius: 50%;
    border: 4px solid var(--accent);
    border-color: var(--accent) transparent var(--accent) transparent;
    animation: lds-dual-ring 1.2s linear infinite;
}

@keyframes lds-dual-ring {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ── In-world UI ────────────────────────────────────────────────── */

#renderer {
    touch-action: pan-x pan-y;
}

.instructions {
    display: none;
    position: absolute;
    padding-top: 5px;
    padding-bottom: 5px;
    left: 0;
    bottom: 0;
    width: 100%;
    background-color: var(--panel);
    color: var(--on-navy);
    font-size: 12px;
    letter-spacing: 0.02em;
    text-align: center;
}

.nameLabel {
    font-family: Quicksand, sans-serif;
    font-size: 14px;
    color: var(--ink-soft);
}

/* ── In-world panel (bottom left, shown once in the square): who you
   are, head tracking, volume and mute ───────────────────────────── */

.audio-controls {
    position: absolute;
    left: 20px;
    bottom: 45px;
    width: 220px;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 10px 14px;
    background-color: var(--panel);
    border-radius: var(--panel-radius);
    color: var(--on-navy);
}

.volume-row,
.mic-row,
.me-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.me-row {
    padding-bottom: 8px;
    margin-bottom: 2px;
    border-bottom: 1px solid var(--panel-line);
}

/* The two-colour sphere from the join card, in miniature. */
.me-avatar {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.me-avatar-inner {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.me-name {
    flex: 1;
    min-width: 0;
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pill {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: var(--accent);
    border: 1px solid var(--accent);
    border-radius: 10px;
    padding: 2px 9px;
    text-decoration: none;
    user-select: none;
}

.pill:hover {
    background: var(--accent);
    color: var(--navy-ink);
    text-decoration: none;
}

/* Click a sphere with the pointer free and this appears beside it:
   the name and a Ghost / Unghost pill. Ghosting is a personal mute,
   both ways, and the sphere goes faint. */
.node-menu {
    position: absolute;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    background-color: var(--panel);
    border-radius: var(--panel-radius);
    color: var(--on-navy);
    font-size: 13px;
    white-space: nowrap;
}

.nameLabel.ghost {
    opacity: 0.35;
}

.control-icon {
    width: 19px;
    height: 19px;
    color: var(--on-navy-soft);
    flex-shrink: 0;
}

#mic-icon-off {
    color: var(--danger);
}

.mic-link,
.ht-link {
    font-size: 12px;
    color: var(--accent);
    text-decoration: none;
    text-transform: uppercase;
    cursor: pointer;
    user-select: none;
}

.mic-link:hover,
.ht-link:hover {
    text-decoration: underline;
}

.mic-link.mic-muted {
    color: var(--danger);
}

.volume-row input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    flex: 1;
    height: 4px;
    background: var(--panel-line);
    border-radius: 2px;
    outline: none;
}

.volume-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
}

.volume-row input[type="range"]::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--accent);
    border-radius: 50%;
    border: none;
    cursor: pointer;
}

/* Head-tracking panel, injected by head-tracking.js above the rows.
   Collapsed shows only the enable link; active shows the head
   wireframe plus Recenter/Off. */

.ht-panel {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-bottom: 8px;
    margin-bottom: 2px;
    border-bottom: 1px solid var(--panel-line);
}

.ht-expanded {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.ht-panel.ht-active .ht-expanded {
    display: flex;
}

.ht-panel.ht-active #ht-enable {
    display: none;
}

/* The tracker reads the video pixels, so the element must stay in the
   DOM and playing: keep it out of sight rather than display: none,
   which can stop frame decoding in some browsers. */
.ht-video-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.ht-head {
    display: block;
    align-self: center;
}

.ht-btn-row {
    display: flex;
    gap: 18px;
    justify-content: center;
}

.ht-error {
    color: var(--danger);
    font-size: 12px;
    background: rgba(255, 138, 138, 0.12);
    border-radius: 6px;
    padding: 6px 8px;
}

/* ── Touch controls ─────────────────────────────────────────────── */

.touch {
    position: absolute;
    width: 80px;
    height: 80px;
    border-width: 2px;
    border-style: solid;
    border-radius: 40px;
    text-align: center;
    font-size: 1.3rem;
    line-height: 74px;
    color: var(--ink-soft);
    border-color: var(--ink-soft);
    display: none;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

#touch-move {
    --move-decoration-display: block;
}

#touch-look {
    --look-decoration-display: block;
}

.touch-label {
    position: relative;
    top: 20px;
}

.touch-hand {
    font-size: 2.0rem;
}

.touch-move {
    top: calc((100% - 240px));
    left: 120px;
}

.move-decoration {
    display: var(--move-decoration-display);
}

.look-decoration {
    display: var(--look-decoration-display);
}

.touch-look {
    top: calc((100% - 240px));
    left: calc((100% - 200px));
}

.touch-arrow {
    position: absolute;
    width: 80px;
    height: 80px;
    line-height: 50px;
    font-size: 2.0rem;
    color: var(--ink-soft);
}

.touch-arrow-up {
    top: -44px;
    left: -2px;
}

.touch-arrow-down {
    top: 40px;
    left: -2px;
    transform: rotate(180deg);
}

.touch-arrow-right {
    top: -2px;
    left: 44px;
    transform: rotate(90deg);
}

.touch-arrow-left {
    top: -2px;
    left: -44px;
    transform: rotate(270deg);
}

/* ── Mobile ─────────────────────────────────────────────────────── */

.mobile-turn {
    position: absolute;
    padding-top: 60px;
    margin-top: 150px;
    padding-bottom: 40px;
    top: 0;
    left: 0;
    z-index: 1;
    border-radius: 8px;
    text-align: center;
    width: 100%;
    font-size: 1.4rem;
    line-height: 1.3;
    display: none;
}

.turn-img {
    width: 100px;
    display: inline-block;
}

@media (max-device-width: 480px) and (orientation: portrait) {

    .side {
        width: 100%;
        height: 100%;
        top: 0;
        left: 0;
        font-size: 1.1rem;
        line-height: 1.3;
        text-align: center;
        border-radius: 0;
    }

    .mobile-turn {
        display: block;
    }

    .info-box {
        display: none;
    }

    #connect {
        display: none;
    }
}

@media (max-device-height: 480px) {

    .audio-controls {
        bottom: 20px;
    }

    #info-box {
        margin-top: 0;
        margin-bottom: 20px;
    }

    .colours-picker {
        margin-top: 0;
        margin-bottom: 0;
        width: 130px;
        height: 130px;
    }

    .center-holder {
        margin-top: 0;
        margin-bottom: 0;
    }

    .side {
        width: 100%;
        height: 100%;
        top: 0;
        left: 0;
        font-size: 0.9rem;
        line-height: 1.3;
        text-align: center;
        border-radius: 0;
        padding-top: 10px;
    }

    h2 {
        font-size: 1.3rem;
        margin-bottom: 5px;
    }

    #connect {
        font-size: 1.1rem;
    }
}