@font-face {
  font-family: "nudicamono-regular";
  src:
    url("../../nudicamono-regular-webfont.woff2") format("woff2"),
    url("../../nudicamono-regular-webfont.woff") format("woff");
  font-weight: normal;
  font-style: normal;
}

/* ── Total Grid System ───────────────────────────────────────────────── */
/* Base unit: 8px.  Every dimension is a multiple of u.                  */
/* Palette: #000 / #fff / #0066ff.  No other hues.                      */
/* Type: one family, three sizes (10 / 12 / 14).                        */

:root {
  --u: 8px;

  --black: #000;
  --white: #fff;
  --accent: #0066ff;

  --w-08: rgba(255, 255, 255, 0.08);
  --w-16: rgba(255, 255, 255, 0.16);
  --w-40: rgba(255, 255, 255, 0.4);
  --w-64: rgba(255, 255, 255, 0.64);

  --hair: 1px solid var(--w-16);

  --t-meta: 10px;
  --t-body: 12px;
  --t-title: 14px;

  --tap: 44px;
  --shutter: 64px;
  --r: 0;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  font-family:
    "nudicamono-regular", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-feature-settings:
    "tnum" 1,
    "calt" 0;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
}

body {
  height: 100dvh;
  background: var(--black);
  color: var(--white);
  font-size: var(--t-body);
  letter-spacing: 0.04em;
}

/* ── App shell ───────────────────────────────────────────────────────── */

.app-shell {
  position: relative;
  width: 100%;
  height: 100dvh;
  overflow: hidden;
}

/* ── Camera stage ───────────────────────────────────────────────────── */

.camera-stage {
  position: absolute;
  inset: 0;
  background: var(--black);
  z-index: 0;
}

.camera-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#video {
  z-index: 1;
}
#canvas {
  z-index: 2;
}

.hidden {
  display: none;
}

/* ── Top overlay ────────────────────────────────────────────────────── */

.overlay-top {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  height: calc(env(safe-area-inset-top, 0px) + var(--u) * 7);
  padding: calc(env(safe-area-inset-top, 0px) + var(--u) * 2) calc(var(--u) * 2)
    var(--u);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  border-bottom: var(--hair);
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  pointer-events: none;
}

.app-title {
  margin: 0;
  font-size: var(--t-title);
  font-weight: normal;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--white);
}

.model-status {
  font-size: var(--t-title);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--w-40);
  transition: opacity 0.6s linear;
}

.model-status--loading {
  animation: blink 1.6s steps(2, end) infinite;
}

.model-status--ready {
  color: var(--accent);
  animation: none;
}

.model-status--version {
  color: var(--w-40);
  animation: none;
}

.model-status--hidden {
  opacity: 0;
  pointer-events: none;
}

/* ── Settings panel ─────────────────────────────────────────────────── */

.settings-panel {
  position: absolute;
  left: calc(var(--u) * 2);
  right: calc(var(--u) * 2);
  bottom: calc(env(safe-area-inset-bottom, 0px) + var(--u) * 14);
  z-index: 20;
  background: var(--black);
  border: var(--hair);
  border-radius: var(--r);
  padding: calc(var(--u) * 2);
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 0.2s linear,
    transform 0.24s cubic-bezier(0.22, 1, 0.36, 1);
}

.sheet-card--collapsed {
  opacity: 0;
  transform: translateY(var(--u));
  pointer-events: none;
}

.settings-panel-handle {
  width: calc(var(--u) * 4);
  height: 2px;
  background: var(--w-40);
  margin: 0 auto calc(var(--u) * 2);
}

.settings-section + .settings-section {
  margin-top: calc(var(--u) * 2);
  padding-top: calc(var(--u) * 2);
  border-top: var(--hair);
}

/* ── Sliders ────────────────────────────────────────────────────────── */

.control-group + .control-group {
  margin-top: calc(var(--u) * 2);
}

.control-label,
.section-title {
  margin: 0 0 var(--u);
  font-size: var(--t-meta);
  font-weight: normal;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--white);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.control-value {
  color: var(--accent);
  font-size: var(--t-meta);
  letter-spacing: 0.04em;
  text-transform: none;
}

.control-hint-row {
  margin-top: var(--u);
  display: flex;
  justify-content: space-between;
  font-size: var(--t-meta);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--w-40);
}

input[type="range"] {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 2px;
  border-radius: 0;
  background: var(--w-16);
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: calc(var(--u) * 2);
  height: calc(var(--u) * 2);
  border-radius: 50%;
  background: var(--accent);
  border: 0;
  margin-top: 0;
  cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
  width: calc(var(--u) * 2);
  height: calc(var(--u) * 2);
  border-radius: 50%;
  background: var(--accent);
  border: 0;
  cursor: pointer;
}

input[type="range"]::-moz-range-track {
  height: 2px;
  background: var(--w-16);
  border: 0;
}

/* ── Segmented control (style picker) ───────────────────────────────── */

.segmented-control {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: var(--hair);
  border-radius: 0;
  background: transparent;
}

.theme-btn {
  min-height: calc(var(--u) * 4);
  border: 0;
  border-right: var(--hair);
  border-radius: 0;
  background: transparent;
  color: var(--w-64);
  font-size: var(--t-meta);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0;
  cursor: pointer;
  transition:
    background 0.15s linear,
    color 0.15s linear;
}

.theme-btn:last-child {
  border-right: 0;
}

.theme-btn--active {
  color: var(--black);
  background: var(--white);
}

/* ── Bottom toolbar ─────────────────────────────────────────────────── */

.toolbar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10;
  height: calc(env(safe-area-inset-bottom, 0px) + var(--u) * 12);
  padding: calc(var(--u) * 2) calc(var(--u) * 2)
    calc(env(safe-area-inset-bottom, 0px) + calc(var(--u) * 2));
  background: var(--black);
  border-top: var(--hair);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  align-items: center;
  justify-items: center;
}

/* ── Tool buttons ───────────────────────────────────────────────────── */

.tool-btn {
  width: var(--tap);
  height: var(--tap);
  border-radius: 50%;
  border: 1px solid var(--w-40);
  background: transparent;
  color: var(--white);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition:
    border-color 0.15s linear,
    color 0.15s linear;
}

.tool-btn svg {
  width: calc(var(--u) * 2);
  height: calc(var(--u) * 2);
  fill: currentColor;
}

.tool-btn:active {
  border-color: var(--white);
}

.tool-btn--active {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Shutter ────────────────────────────────────────────────────────── */

.shutter-btn {
  width: var(--shutter);
  height: var(--shutter);
  border-radius: 50%;
  border: 2px solid var(--white);
  background: transparent;
  padding: 4px;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: border-color 0.15s linear;
}

.shutter-inner {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--white);
  transition:
    transform 0.12s linear,
    background 0.15s linear;
}

.shutter-btn:active .shutter-inner {
  transform: scale(0.85);
}

.shutter-btn:disabled {
  border-color: var(--w-16);
}

.shutter-btn:disabled .shutter-inner {
  background: var(--w-16);
}

/* Preview active ────────────────────────────────────────────────────── */

.tool-btn.preview-active {
  border-color: var(--accent);
  color: var(--accent);
}

/* Save ready ────────────────────────────────────────────────────────── */

.tool-btn.save-ready {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--black);
}

/* ── Retake overlay ─────────────────────────────────────────────────── */

.clear-btn {
  position: absolute;
  top: calc(env(safe-area-inset-top, 0px) + var(--u) * 9);
  right: calc(var(--u) * 2);
  width: var(--tap);
  height: var(--tap);
  border-radius: 50%;
  border: 1px solid var(--white);
  background: var(--black);
  color: var(--white);
  z-index: 5;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition:
    background 0.15s linear,
    color 0.15s linear;
}

.clear-btn:active {
  background: var(--white);
  color: var(--black);
}

.clear-btn svg {
  width: calc(var(--u) * 2);
  height: calc(var(--u) * 2);
  fill: currentColor;
}

/* ── Disabled ────────────────────────────────────────────────────────── */

.is-disabled,
button:disabled {
  opacity: 0.32;
  cursor: not-allowed;
}

.shutter-btn:disabled {
  opacity: 1;
}

/* ── Focus rings ─────────────────────────────────────────────────────── */

.tool-btn:focus-visible,
.shutter-btn:focus-visible,
.clear-btn:focus-visible,
.theme-btn:focus-visible,
input[type="range"]:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

/* ── Animations ──────────────────────────────────────────────────────── */

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}