/* ==========================================================================
   Pardalote example — house style (IMU variant)
   Standard house style (white paper, graph-paper wash, Poppins, 1.5px ink
   outlines, teal / amber / orange accents) plus the IMU's on-canvas readout
   overlay. The 3D view sits in the page flow like every other example.
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');

:root {
    --ink:      #2B2420;
    --ink-soft: #4a463f;
    --grey:     #6d6a5f;
    --paper:    #FFFFFF;
    --cream:    #F2E9D8;
    --orange:   #D3542B;
    --teal:     #3FA9A0;
    --green:    #3E9C54;
    --amber:    #E8A33D;
    --red:      #D22B2B;
    --line:     #2B2420;
    --hair:     #d9d2c2;
    --grid:     #ededed;
    --mono: "SF Mono", "Fira Code", ui-monospace, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
    font-family: 'Poppins', -apple-system, system-ui, sans-serif;
    color: var(--ink);
    background-color: var(--paper);
    background-image:
        linear-gradient(var(--grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid) 1px, transparent 1px);
    background-size: 40px 40px;
    line-height: 1.5;
}

main {
    max-width: 1000px;
    margin: 0 auto;
    padding: 26px clamp(16px, 4vw, 40px) 44px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

/* ---- header ---- */
.brand {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: #f2b705;
    margin-bottom: 2px;
}
.brand a { color: inherit; text-decoration: none; }
.brand a:hover { text-decoration: underline; }
.heading {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 2px;
}
.heading::after {
    content: "";
    display: block;
    width: 44px;
    height: 3px;
    background: var(--amber);
    margin-top: 6px;
}
#status {
    font-family: var(--mono);
    font-size: 12.5px;
    color: var(--grey);
    margin: 8px 0 14px;
    max-width: 62ch;
}

/* ---- control rows ---- */
.row {
    display: flex;
    gap: 8px;
    align-items: center;
    font-size: 13px;
    color: var(--ink-soft);
    margin-bottom: 8px;
    flex-wrap: wrap;
}
.lbl {
    width: 74px;
    flex: none;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--ink);
}

/* ---- controls ---- */
button, select {
    font-family: 'Poppins', system-ui, sans-serif;
    font-size: 12.5px;
    font-weight: 600;
    padding: 5px 12px;
    background: var(--paper);
    color: var(--ink);
    border: 1.5px solid var(--line);
    border-radius: 0;
    cursor: pointer;
    transition: background .15s, color .15s, border-color .15s;
}
button:hover { background: var(--ink); color: #fff; }
button.primary { background: var(--ink); color: #fff; }
button.primary:hover { background: var(--green); border-color: var(--green); color: #fff; }
button.connected { background: var(--green); border-color: var(--green); color: #fff; }
button.connected:hover { background: var(--green); border-color: var(--green); color: #fff; }

input[type=text], input[type=number] {
    font-family: var(--mono);
    font-size: 13px;
    padding: 4px 7px;
    background: var(--paper);
    color: var(--ink);
    border: 1.5px solid var(--line);
    border-radius: 0;
}
input[type=number] { width: 64px; }

/* uniform control height — buttons, selects and text inputs line up in the setup rows */
.row button, .row select, .row input[type=text], .row input[type=number] { height: 32px; }

/* ---- the 3D stage + on-canvas readout ---------------------------------- */
#stage {
    position: relative;
    display: inline-block;
    margin: 12px 0 26px;
}
#stage canvas {
    display: block;
    margin: 0;
    background: var(--paper);
    border: 1.5px solid var(--line);
}

/* readout — an outlined house card, floating over the top-left of the view */
#readout {
    position: absolute;
    top: 16px;
    left: 16px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--ink-soft);
    background: var(--paper);
    border: 1.5px solid var(--line);
    padding: 12px 14px;
    min-width: 190px;
    line-height: 1.5;
    pointer-events: none;   /* let clicks fall through to the canvas */
    user-select: none;
}
#readout button { pointer-events: all; }

.section { margin-bottom: 10px; }
.label {
    font-size: 9px;
    letter-spacing: 2px;
    color: var(--grey);
    margin-bottom: 3px;
}

#angles {
    display: grid;
    grid-template-columns: auto 1fr auto;
    column-gap: 12px;
    row-gap: 4px;
    align-items: baseline;
    font-size: 16px;
    color: var(--ink);
    letter-spacing: 0.5px;
}
/* axis colours match the 3D axes: X orange, Y teal, Z amber */
#angles .axis-x { color: var(--orange); letter-spacing: 1.5px; font-size: 11px; }
#angles .axis-y { color: var(--teal);   letter-spacing: 1.5px; font-size: 11px; }
#angles .axis-z { color: var(--amber);  letter-spacing: 1.5px; font-size: 11px; }
#angles .angle-val { text-align: right; font-variant-numeric: tabular-nums; }
#angles .deg { color: var(--grey); font-size: 13px; }

/* ---- Calibrate button ---- */
#cal-btn {
    display: block;
    margin-top: 14px;
    padding: 6px 14px;
    background: var(--paper);
    border: 1.5px solid var(--line);
    border-radius: 0;
    color: var(--ink);
    font-family: 'Poppins', system-ui, sans-serif;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1.5px;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}
#cal-btn:hover  { background: var(--ink); color: #fff; }
#cal-btn:active { background: var(--orange); border-color: var(--orange); color: #fff; }
#cal-msg {
    margin-top: 8px;
    font-size: 11px;
    color: var(--grey);
    min-height: 16px;
}