/* style.css — layout, panels, controls. Canvas visuals live in CONFIG (JS). */

:root {
    --osim-bg: #0a0e14;
    --osim-panel: #131a24;
    --osim-panel-border: #263140;
    --osim-text: #e6edf3;
    --osim-text-dim: #97a6ba;
    --osim-accent: #7eb3ff;
    --osim-radius: 10px;
    --osim-gap: 16px;
    --osim-sidebar-width: 300px;
    --osim-optics-aspect: 900 / 420;
    --osim-placeholder-aspect: 440 / 240;
    --sensor-blur-px: 0px;
    --sensor-magnification: 1;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--osim-bg);
    color: var(--osim-text);
    font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.osim { padding: var(--osim-gap); max-width: 1400px; margin: 0 auto; }

/* --- header --------------------------------------------------------------- */
.osim__header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--osim-gap);
    margin-bottom: var(--osim-gap);
}
.osim__title { margin: 0; font-size: 1.35rem; font-weight: 600; }
.osim__header-tools { display: flex; align-items: center; gap: 10px; }
.osim__lang { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--osim-text-dim); }
.osim__lang select {
    background: var(--osim-panel);
    color: var(--osim-text);
    border: 1px solid var(--osim-panel-border);
    border-radius: 6px;
    padding: 5px 8px;
    font: inherit;
}
.config-menu { position: relative; }
.config-menu__toggle {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid var(--osim-panel-border);
    border-radius: 6px;
    background: var(--osim-panel);
    color: var(--osim-text-dim);
    font: 18px/1 system-ui, sans-serif;
    cursor: pointer;
}
.config-menu__toggle:hover,
.config-menu__toggle:focus-visible { color: var(--osim-text); }
.config-menu__toggle:focus-visible {
    outline: 1px solid var(--osim-accent);
    outline-offset: 2px;
}
.config-menu__panel {
    position: absolute;
    z-index: 20;
    top: calc(100% + 8px);
    right: 0;
    width: min(440px, calc(100vw - 32px));
    max-height: min(70vh, 640px);
    padding: 14px;
    overflow: auto;
    border: 1px solid var(--osim-panel-border);
    border-radius: 8px;
    background: var(--osim-panel);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}
.config-menu__panel[hidden] { display: none; }
.config-menu__title {
    margin: 0 0 10px;
    font-size: 0.9rem;
}
.config-menu__fields { display: grid; gap: 8px; }
.config-menu__field {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(110px, 0.75fr);
    align-items: center;
    gap: 10px;
}
.config-menu__key {
    overflow-wrap: anywhere;
    color: var(--osim-text-dim);
    font-size: 0.72rem;
}
.config-menu__input {
    min-width: 0;
    width: 100%;
    border: 1px solid var(--osim-panel-border);
    border-radius: 4px;
    background: #0c1118;
    color: var(--osim-text);
    padding: 4px 6px;
    font: 0.75rem/1.3 ui-monospace, SFMono-Regular, Consolas, monospace;
}
.config-menu__input[type="checkbox"] {
    width: auto;
    justify-self: start;
    accent-color: var(--osim-accent);
}
.config-menu__input[type="color"] {
    height: 30px;
    padding: 2px;
    cursor: pointer;
}

/* --- grid ----------------------------------------------------------------- */
.osim__grid {
    display: grid;
    gap: var(--osim-gap);
    grid-template-columns: var(--osim-sidebar-width) 1fr 1fr;
    grid-template-areas:
    "settings optics optics"
    "settings object sensor";
    align-items: start;
}
.panel--settings { grid-area: settings; }
.panel--optics   { grid-area: optics; }
.panel--object   { grid-area: object; }
.panel--sensor   { grid-area: sensor; }

/* --- panels --------------------------------------------------------------- */
.panel {
    background: var(--osim-panel);
    border: 1px solid var(--osim-panel-border);
    border-radius: var(--osim-radius);
    padding: 14px 16px 16px;
}
.panel__title { margin: 0; font-size: 1rem; font-weight: 600; }
.panel__subtitle {
    margin: 20px 0 8px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--osim-text-dim);
}
.panel__desc { margin: 4px 0 12px; font-size: 0.82rem; color: var(--osim-text-dim); }

/* --- canvases ------------------------------------------------------------- */
.canvas-wrap {
    background: #0c1118;
    border: 1px solid var(--osim-panel-border);
    border-radius: 8px;
    overflow: hidden;
}
.canvas-wrap--optics {
    position: relative;
    aspect-ratio: var(--osim-optics-aspect);
}
.canvas-wrap--placeholder { aspect-ratio: var(--osim-placeholder-aspect); }
.canvas-wrap canvas { display: block; width: 100%; height: 100%; }
.plot-navigation__overlay {
    position: absolute;
    z-index: 1;
    inset: 0;
    width: 100%;
    height: 100%;
    touch-action: none;
    cursor: grab;
}
.plot-navigation__overlay:active { cursor: grabbing; }
.plot-navigation__overlay--selecting,
.plot-navigation__overlay--selecting:active { cursor: crosshair; }
.plot-navigation__overlay .selection {
    fill: rgba(126, 179, 255, 0.2);
    stroke: var(--osim-accent);
    stroke-width: 1;
}
.plot-navigation {
    position: absolute;
    z-index: 2;
    top: 8px;
    right: 8px;
    display: flex;
    overflow: hidden;
    border: 1px solid var(--osim-panel-border);
    border-radius: 6px;
    background: rgba(19, 26, 36, 0.92);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}
.plot-navigation button {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    padding: 0;
    border: 0;
    border-left: 1px solid var(--osim-panel-border);
    background: transparent;
    color: var(--osim-text-dim);
    font: 17px/1 system-ui, sans-serif;
    cursor: pointer;
}
.plot-navigation button:first-child { border-left: 0; }
.plot-navigation button:hover,
.plot-navigation button:focus-visible,
.plot-navigation button[aria-pressed="true"] {
    background: rgba(126, 179, 255, 0.14);
    color: var(--osim-text);
}
.plot-navigation button:focus-visible {
    position: relative;
    outline: 1px solid var(--osim-accent);
    outline-offset: -2px;
}
.image-preview {
    position: relative;
    clip-path: inset(0 round 8px);
    isolation: isolate;
}
.image-preview img {
    position: absolute;
    z-index: 0;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.js-sensor-image {
    object-fit: cover;
    transform: rotate(180deg) scale(var(--sensor-magnification, 1));
    transform-origin: center;
}
.image-preview--sensor::after {
    content: "";
    position: absolute;
    z-index: 1;
    inset: 0;
    pointer-events: none;
    backdrop-filter: blur(var(--sensor-blur-px, 0px));
}

/* --- controls ------------------------------------------------------------- */
.controls { display: flex; flex-direction: column; gap: 14px; }
.control__head {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 6px;
}
.control--checkbox .control__head {
    align-items: center;
    margin-bottom: 0;
}
.control--checkbox .control__input {
    flex: 0 0 auto;
    margin: 0;
}
.control__label { font-size: 0.85rem; }
.control__value {
    margin-left: auto;
    font-variant-numeric: tabular-nums;
    font-size: 0.85rem;
    color: var(--osim-accent);
}
.control input[type="range"] { width: 100%; accent-color: var(--osim-accent); }
.control input[type="checkbox"] { accent-color: var(--osim-accent); }
.control--disabled { opacity: 0.6; }

/* --- stats ---------------------------------------------------------------- */
.stats {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 6px 12px;
    margin: 0;
    font-size: 0.85rem;
}
.stats__label {
    position: relative;
    display: flex;
    align-items: center;
    gap: 5px;
    min-width: 0;
    color: var(--osim-text-dim);
    margin: 0;
}
.stats__value { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.stats-info__math { font-family: "Cambria Math", "Times New Roman", serif; }
.stats-info__math sub { font-size: 0.72em; }

/* --- responsive ----------------------------------------------------------- */
@media (max-width: 1000px) {
    .osim__grid {
        grid-template-columns: 1fr 1fr;
        grid-template-areas:
      "settings settings"
      "optics optics"
      "object sensor";
    }
}
@media (max-width: 640px) {
    .osim__grid {
        grid-template-columns: 1fr;
        grid-template-areas: "settings" "optics" "object" "sensor";
    }
}