html {
    font-family: "Roboto", sans-serif;
    width: 100%;
    height: 100%;
}

body {
    background-color: #000000;
    color: #ccc;
    margin: 0;
    overflow: hidden;
    font-weight: 300;
    width: 100%;
    height: 100%;
}

#container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

a {
    color: #4cc9f0;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.top-center {
    position: absolute;
    top: 12px;
    left: 0;
    width: 100%;
    padding: 6px;
    text-align: center;
    pointer-events: none;
    box-sizing: border-box;
}

.top-center a {
    pointer-events: auto;
}

#info {
    line-height: 1.4;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.9);
}

.info-title {
    font-weight: 500;
    font-size: 16px;
    letter-spacing: 0.01em;
    color: #f0f3f7;
}

.info-source {
    margin-top: 3px;
    font-size: 12px;
    color: #9aa4b0;
}

/* Uppercase micro-hint echoes the panel's label treatment. */
.info-hint {
    margin-top: 7px;
    font-size: 10.5px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #8b95a3;
}

#status {
    top: 50%;
    transform: translateY(-50%);
    color: #aaa;
    font-size: 14px;
}

#status.error {
    color: #ff6b6b;
    font-weight: 400;
}

#footer {
    position: absolute;
    bottom: 10px;
    right: 12px;
    font-size: 10.5px;
    line-height: 1.6;
    color: #8b95a3;
    text-align: right;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.9);
}

/* Per-viewport labels for side-by-side mode */
#labels {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.viewport-label {
    position: absolute;
    top: 94px;
    font-size: 11.5px;
    font-weight: 500;
    letter-spacing: 0.03em;
    color: #e2e7ec;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.95);
    display: none;
    box-sizing: border-box;
}

/* Cyan dot ties the labels to the panel's accent. */
.viewport-label::before {
    content: "";
    display: inline-block;
    width: 6px;
    height: 6px;
    margin-right: 7px;
    border-radius: 50%;
    background: #4cc9f0;
    vertical-align: middle;
}

/* Labels flank the center divider so they stay clear of the GUI panel and
   read unambiguously against their own viewport. */
#label-left {
    left: 0;
    width: 50%;
    text-align: right;
    padding-right: 28px;
}

#label-right {
    left: 50%;
    width: 50%;
    text-align: left;
    padding-left: 28px;
}

/* Centered model title shown in Toggle mode. */
#label-toggle {
    left: 0;
    width: 100%;
    text-align: center;
}

body:not(.side-by-side) #label-toggle {
    display: block;
}

body.side-by-side #label-left,
body.side-by-side #label-right {
    display: block;
}

/* Faint divider between the two viewports in side-by-side mode */
body.side-by-side #container::after {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    width: 1px;
    height: 100%;
    background: rgba(255, 255, 255, 0.12);
    pointer-events: none;
}

/* Draggable control panel. The gear toggles the (collapsed-by-default) GUI so it
   never overlaps the title, and it can be dragged anywhere by mouse or touch. */
#controls {
    position: fixed;
    top: 12px;
    right: 12px;
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
}

#gear {
    width: 38px;
    height: 38px;
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    color: #ddd;
    background: rgba(20, 20, 24, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 50%;
    cursor: grab;
    touch-action: none;          /* let us handle touch-drag ourselves */
    -webkit-tap-highlight-color: transparent;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    transition: background 0.15s, color 0.15s, opacity 0.2s;
}

#gear:hover {
    background: rgba(40, 40, 48, 0.9);
    color: #fff;
}

#gear:active {
    cursor: grabbing;
}

#gear svg {
    display: block;
}

/* Fullscreen toggle (bottom-left) and clean-view toggle (top-right, beside the
   gear) share the gear's icon-button look. */
#fs-btn,
#clean-btn {
    position: fixed;
    z-index: 100;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    color: #ddd;
    background: rgba(20, 20, 24, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 50%;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    transition: background 0.15s, color 0.15s, opacity 0.2s;
}

#fs-btn { bottom: 12px; left: 12px; }
/* Hug the gear's default top-right slot (gear is 38px at right:12). */
#clean-btn { top: 12px; right: 55px; }

#fs-btn:hover,
#clean-btn:hover {
    background: rgba(40, 40, 48, 0.9);
    color: #fff;
}

#fs-btn.active,
#clean-btn.active {
    color: #4cc9f0;
    border-color: rgba(76, 201, 240, 0.5);
}

#fs-btn svg,
#clean-btn svg {
    display: block;
}

/* Eye shows while text is visible; eye-off once it's hidden. */
#clean-btn .icon-eye-off { display: none; }
#clean-btn.active .icon-eye { display: none; }
#clean-btn.active .icon-eye-off { display: block; }

/* Clean view: fade out every overlay text element, leaving the streams on black.
   The icon buttons stay reachable but recede to near-invisible so a screenshot is
   pristine; they return on hover (or when the panel is open). */
#info,
#footer,
#labels {
    transition: opacity 0.3s ease;
}

body.chrome-hidden #info,
body.chrome-hidden #footer,
body.chrome-hidden #labels {
    opacity: 0;
    pointer-events: none;
}

body.chrome-hidden #gear,
body.chrome-hidden #fs-btn,
body.chrome-hidden #clean-btn {
    opacity: 0.12;
}

body.chrome-hidden #controls.open #gear,
body.chrome-hidden #gear:hover,
body.chrome-hidden #fs-btn:hover,
body.chrome-hidden #clean-btn:hover {
    opacity: 1;
}

/* Embed: the control panel is hidden inline, but fullscreen (body.fs) promotes the
   embed to the full experience, so the gear comes back. */
body.embed:not(.fs) #controls {
    display: none;
}

/* With the gear hidden inline, the eye takes the corner slot itself. */
body.embed:not(.fs) #clean-btn {
    right: 12px;
}

/* Console panel. Collapsed by default; width- and height-capped with an internal
   scroll so it never overflows a small portrait or landscape screen. */
#gui-mount {
    --accent: #4cc9f0;
    --muted: #8b95a3;
    --track: rgba(255, 255, 255, 0.14);
    display: none;
    width: 244px;
    max-width: calc(100vw - 24px);
    max-height: calc(100vh - 80px);
    overflow-y: auto;
    overflow-x: hidden;
    color: #e8ecf1;
    background: rgba(12, 14, 18, 0.78);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.55);
}

#controls.open #gui-mount {
    display: block;
}

.panel {
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding: 15px 15px 16px;
}

.grp-label,
.ctrl label {
    font-size: 10.5px;
    font-weight: 500;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--muted);
}

.grp-label {
    margin-bottom: 8px;
}

/* Editable mono readout pills tie the panel to its "instrument" feel. */
.ctrl-val {
    display: flex;
    align-items: center;
    gap: 6px;
}

input.pill {
    font-family: ui-monospace, "SF Mono", "Roboto Mono", Menlo, monospace;
    font-size: 11px;
    color: var(--accent);
    background: rgba(76, 201, 240, 0.1);
    border: 1px solid rgba(76, 201, 240, 0.28);
    border-radius: 999px;
    padding: 2px 8px;
    width: 46px;
    text-align: center;
    -moz-appearance: textfield;
    appearance: textfield;
}

/* Hide the native number-input spinners; the slider is the up/down affordance. */
input.pill::-webkit-outer-spin-button,
input.pill::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input.pill:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(76, 201, 240, 0.25);
}

.mini-reset {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    padding: 0;
    font-size: 12px;
    line-height: 1;
    color: var(--muted);
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}

.mini-reset:hover {
    color: var(--accent);
    border-color: rgba(76, 201, 240, 0.5);
}

/* Segmented control with a sliding cyan indicator. */
.seg {
    position: relative;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 9px;
    padding: 3px;
}

.seg-ind {
    position: absolute;
    top: 3px;
    bottom: 3px;
    left: 3px;
    width: calc((100% - 6px) / 3);
    background: rgba(76, 201, 240, 0.16);
    border: 1px solid rgba(76, 201, 240, 0.55);
    border-radius: 7px;
    transition: transform 0.22s ease;
    pointer-events: none;
}

.seg-btn {
    position: relative;
    z-index: 1;
    background: none;
    border: 0;
    padding: 7px 0;
    font-family: inherit;
    font-size: 12px;
    font-weight: 500;
    color: var(--muted);
    cursor: pointer;
    transition: color 0.18s;
}

.seg-btn.active {
    color: #fff;
}

.seg-btn:hover:not(.active) {
    color: #cdd4dd;
}

.ctrl {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ctrl-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ctrl-row {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

/* Custom range: thin track (JS paints the cyan fill) + cyan thumb. */
.range {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    border-radius: 999px;
    background: var(--track);
    outline: none;
    cursor: pointer;
}

.range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent);
    border: 2px solid #0c0e12;
    box-shadow: 0 0 0 1px rgba(76, 201, 240, 0.5);
}

.range::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent);
    border: 2px solid #0c0e12;
    box-shadow: 0 0 0 1px rgba(76, 201, 240, 0.5);
}

.range:focus-visible {
    box-shadow: 0 0 0 2px rgba(76, 201, 240, 0.4);
}

/* Pill switch. */
.switch {
    position: relative;
    width: 40px;
    height: 22px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    cursor: pointer;
    transition: background 0.18s, border-color 0.18s;
}

.switch .knob {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #cdd4dd;
    transition: transform 0.18s, background 0.18s;
}

.switch.on {
    background: rgba(76, 201, 240, 0.22);
    border-color: rgba(76, 201, 240, 0.6);
}

.switch.on .knob {
    transform: translateX(18px);
    background: var(--accent);
}

.ghost-btn {
    margin-top: 2px;
    padding: 9px 0;
    font-family: inherit;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.03em;
    color: #cdd4dd;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 9px;
    cursor: pointer;
    transition: background 0.18s, color 0.18s, border-color 0.18s;
}

.ghost-btn:hover {
    color: #fff;
    background: rgba(76, 201, 240, 0.14);
    border-color: rgba(76, 201, 240, 0.5);
}

@media (prefers-reduced-motion: reduce) {
    .seg-ind,
    .seg-btn,
    .switch,
    .switch .knob,
    .ghost-btn,
    #info,
    #footer,
    #labels,
    #gear,
    #fs-btn,
    #clean-btn { transition: none; }
}

@media (max-width: 640px) {
    /* Keep the centered title clear of the top-right button cluster on portrait. */
    .top-center { padding-left: 50px; padding-right: 50px; }
    .info-title { font-size: 14px; }
    .info-source { font-size: 11px; }
    .info-hint { font-size: 9.5px; }
    #footer { font-size: 9.5px; }
    .viewport-label { font-size: 10.5px; top: 84px; }
}