:root {
  --page-max: 1400px;
  --font-ui: "Noto Serif", Georgia, "Times New Roman", serif;

  --font-ui-menu: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;

  --card-h1-size: clamp(34px, 3vw, 40px);
  --card-h2-size: clamp(26px, 3vw, 32px);
  --card-p-size: clamp(16px, 3vw, 20px);

  --bg-page: #292929;
  --color-primary: #cfcfcf;
  --tone-dim-secondary: 40%;
  --color-h1: #bebebe;
  --hero-text: #cfcfcf;
  --scroll-accent: #b1b1b1;

  --tone-dim-h2: 10%;
  --tone-dim-p: 5%;
  --tone-elev-1: 0%;
  --tone-elev-2: 10%;
  --tone-color-accent: 70%;

  --hdr-bg-on: #292929;
  --hdr-shadow-on: 0 0 12px 6px #191919;

  --gap: clamp(25px, 3vw, 30px);
  --pad-card: clamp(16px, 2.4vw, 24px);
  --img-pad: 15px;
  --img-radius: 15px;
  --card-radius: clamp(20px, 2vw, 28px);
  --shadow-1:
    -4px -4px 12px -5px rgba(255, 255, 255, 0.15),
    4px 4px 20px -6px rgba(0, 0, 0, 0.5),
    inset 2px 2px 5px -5px rgba(0, 0, 0, 0.267),
    inset -2px -2px 5px -5px rgba(255, 255, 255, 0.15);
  --shadow-2: 0 12px 30px rgba(0, 0, 0, 0.45);

  --glass-blur: 20px;
  --glass-bg: color-mix(in srgb, #292929 65%, transparent);
  --glass-bd: color-mix(in srgb, #ffffff 12%, transparent);
  --padding-block: clamp(0px, 1vw, 10px) 20px;
}

html,
body {
  font-variant-numeric: lining-nums tabular-nums;
  font-feature-settings: "lnum", "tnum";
  text-rendering: optimizeLegibility;
}

input,
select,
textarea,
button {
  font-variant-numeric: lining-nums tabular-nums;
  font-feature-settings: "lnum", "tnum";
}

input[type="date"] {
  font-variant-numeric: lining-nums tabular-nums;
  font-feature-settings: "lnum", "tnum";
}

html[data-theme="light"] {
  --bg-page-light: #eeeeee;
  --color-primary-light: #474747;
  --color-h1-light: #474747;

  --bg-page: var(--bg-page-light);
  --color-primary: var(--color-primary-light);

  --color-h1: var(--color-h1-light);

  --glow-color: rgba(0, 0, 0, 0.18);

  --hdr-bg-on: #ffffff;
  --hdr-shadow-on: 0 8px 24px rgba(0, 0, 0, 0.12);

  --glass-bg: color-mix(in srgb, #ffffff 65%, transparent);
  --glass-bd: color-mix(in srgb, #000000 30%, transparent);
}

:root {
  --bg-elev-1: color-mix(in oklch, var(--bg-page), black var(--tone-elev-1));
  --bg-elev-2: color-mix(in oklch, var(--bg-page), black var(--tone-elev-2));
  --color-secondary: color-mix(
    in oklch,
    var(--color-primary),
    black var(--tone-dim-secondary)
  );
  --color-h2: color-mix(in oklch, var(--color-h1), black var(--tone-dim-h2));
  --color-p: color-mix(in oklch, var(--color-h1), black var(--tone-dim-p));
  --color-accent: color-mix(
    in oklch,
    var(--color-primary),
    black var(--tone-color-accent)
  );
  --color-scroll-accent: color-mix(
    in oklch,
    var(--scroll-accent),
    black var(--tone-color-accent)
  );
}

html,
body {
  height: 100%;
}
body {
  margin: 0;
  background: var(--bg-page);
}

:root {
  --theme-xfade: 500ms;
}

html.theme-fade,
html.theme-fade * {
  transition:
    color var(--theme-xfade) ease,
    background-color var(--theme-xfade) ease,
    border-color var(--theme-xfade) ease,
    box-shadow var(--theme-xfade) ease,
    text-shadow var(--theme-xfade) ease,
    filter var(--theme-xfade) ease;
}

:root {
  --hero-stroke: rgba(0, 0, 0, 0);
  --hero-stroke-w: 0px;
  --hero-glow-color: rgba(0, 0, 0, 0);
  --hero-glow-r: 0px;
}

html[data-theme="dark"] {
  --hero-text: var(--color-primary, #e3fc00);
  --hero-text-muted: color-mix(in oklch, var(--hero-text), black 20%);
  --hero-stroke: rgba(0, 0, 0, 0);
  --hero-glow-color: rgba(0, 0, 0, 0);
}

html[data-theme="light"] {
  --hero-text-muted: color-mix(in oklch, var(--hero-text), black 50%);
  --hero-stroke: rgba(0, 0, 0, 0);
  --hero-glow-color: rgba(0, 0, 0, 0);
}

.card {
  position: relative;
  min-width: 0;
  width: 320px;
  border-radius: var(--card-radius);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  text-align: center;

  background: var(--bg-elev-1, var(--bg-page));
  border: var(--card-bd, 0 solid transparent);
  box-shadow: var(--card-shadow, var(--shadow-1));
  backdrop-filter: var(--card-backdrop, none);
  align-content: stretch;
}

.card__content {
  padding: var(--pad-card);
  padding-top: 6px;
}
.card__h2 {
  margin: 0 0 20px;
  font-size: var(--card-h2-size);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-h2);
}
.card__p {
  margin: 0;
  font-size: var(--card-p-size);
  line-height: 1.55;
  color: var(--color-p);
}

.card__media {
  padding: var(--img-pad);
  box-sizing: border-box;
}
.media-frame {
  position: relative;
  width: 100%;
  aspect-ratio: var(--img-ratio);
  overflow: hidden;
  border-radius: calc(var(--card-radius) - var(--img-pad));
}
.media-frame > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.block__title {
  margin: 0;
  font-size: var(--card-h1-size);
  font-weight: 600;
  color: var(--color-h1);
}

.block__lead {
  margin: 10px 16px 28px;
  text-align: center;
  font-size: clamp(16px, 3vw, 24px);

  color: var(--color-h2);
  line-height: 1.55;
}

@media (prefers-reduced-motion: reduce) {
  html.theme-fade,
  html.theme-fade * {
    transition: none !important;
  }
}

.toolbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  background: color-mix(in srgb, var(--color-bg) 80%, transparent);
  border-bottom: 1px solid
    color-mix(in srgb, var(--color-primary) 10%, transparent);
}
.toolbar__inner {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 10px 16px;
}
.toolbar__left,
.toolbar__right {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}
.toolbar .btn {
  padding: 8px 12px;
}

.card--clickable {
  position: relative;
  overflow: hidden;
}
.card--clickable .card-link {
  position: absolute;
  inset: 0;
  z-index: 1;
  text-indent: -9999px;
  background: transparent;
}
.card--clickable .card__content,
.card--clickable img.cover {
  position: relative;
  z-index: 0;
}

.card--clickable:hover {
  transform: translateY(-1px);
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease;
  box-shadow: 0 6px 16px
    color-mix(in srgb, var(--color-primary) 16%, transparent);
}
.card--dim {
  opacity: 0.5;
  filter: saturate(0.7);
  transition:
    opacity 0.15s ease,
    filter 0.15s ease;
}

.card__controls {
  position: absolute;
  z-index: 2;
  top: 10px;
  right: 10px;
  display: flex;
  gap: 6px;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: color-mix(in srgb, var(--color-bg) 40%, rgba(0, 0, 0, 0.35));
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.modal-backdrop.is-open {
  display: flex;
}

.modal {
  width: min(560px, 100%);
  background: var(--card-bg, #0f1116);
  border: 1px solid color-mix(in srgb, var(--color-primary) 16%, transparent);
  border-radius: 14px;
  box-shadow: 0 10px 32px
    color-mix(in srgb, var(--color-primary) 24%, transparent);
}
.modal__head,
.modal__body,
.modal__foot {
  padding: 14px 16px;
}
.modal__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid
    color-mix(in srgb, var(--color-primary) 12%, transparent);
}
.modal__foot {
  border-top: 1px solid
    color-mix(in srgb, var(--color-primary) 12%, transparent);
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  flex-wrap: wrap;
}
.modal__title {
  margin: 0;
  font-size: 1.1rem;
}
.modal__close {
  border: 1px solid color-mix(in srgb, var(--color-primary) 16%, transparent);
  border-radius: 10px;
  padding: 6px 10px;
  cursor: pointer;
  background: transparent;
}
.modal__row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: end;
  margin: 8px 0;
}
.modal__row label {
  display: block;
}
.modal__result {
  margin-top: 8px;
  font-size: 12px;
  word-break: break-all;
}

.login-card {
  max-width: 360px;
  margin: 80px auto;
  padding: 30px 36px;
  background: var(--card-bg, #1e1e1e);
  border-radius: 16px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.25);
  text-align: center;
}

.login-card h1 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.login-desc {
  font-size: 14px;
  color: var(--muted, #9aa0a6);
  margin-bottom: 24px;
}

.input-wrap {
  position: relative;
  margin-bottom: 20px;
}
.input-wrap input {
  width: 100%;
  padding: 10px 36px 10px 12px;
  font-size: 15px;
  border: 1px solid var(--border, #444);
  border-radius: 8px;
  background: var(--input-bg, #2a2a2a);
  color: var(--text, #fff);
}
.input-wrap input:focus {
  outline: none;
  border-color: var(--accent, #666);
}

.clear-btn {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
}
.clear-btn::before {
  content: "✕";
  font-size: 14px;
  color: var(--muted, #aaa);
}
.clear-btn.show {
  opacity: 0.6;
  pointer-events: auto;
}
.clear-btn.show:hover::before {
  color: var(--accent, #fff);
  opacity: 1;
}

.btn {
  display: inline-block;
  padding: 10px 18px;
  border: 1px solid var(--border, #444);
  border-radius: 10px;
  background: var(--btn-bg, #2a2a2a);
  color: var(--text, #fff);
  font-weight: 600;
  transition: all 0.15s ease;
}
.btn:hover {
  background: var(--btn-hover, #3a3a3a);
}
.btn-primary {
  background: var(--accent, #444);
  border-color: var(--accent, #444);
}
.btn-primary:hover {
  background: color-mix(in srgb, var(--color-primary, #fff) 10%, transparent);
}
.w-full {
  width: 100%;
}

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:autofill,
input:autofill:hover,
input:autofill:focus {
  -webkit-box-shadow: 0 0 0px 1000px
    color-mix(in srgb, var(--glass-bg), #fff 94%) inset !important;

  box-shadow: 0 0 0px 1000px var(--glass-bg, rgba(30, 30, 30, 0.75)) inset !important;
  -webkit-text-fill-color: var(--color-primary, #ddd) !important;
  caret-color: var(--color-primary, #ddd);
  transition: background-color 9999s ease-in-out 0s;
}

.login-card input:-webkit-autofill,
.login-card input:-webkit-autofill:hover,
.login-card input:-webkit-autofill:focus {
  -webkit-box-shadow: 0 0 0 1000px
    color-mix(in srgb, var(--glass-bg, rgba(30, 30, 30, 0.75)), #ffffff 6%)
    inset !important;
  box-shadow: 0 0 0 1000px
    color-mix(in srgb, var(--glass-bg, rgba(30, 30, 30, 0.75)), #ffffff 6%)
    inset !important;
  -webkit-text-fill-color: var(--color-primary, #ddd) !important;
  caret-color: var(--color-primary, #ddd);
  border-radius: 12px;
  transition: background-color 9999s ease-in-out 0s !important;
}

.login-card input:autofill,
.login-card input:autofill:hover,
.login-card input:autofill:focus {
  box-shadow: 0 0 0 1000px
    color-mix(in srgb, var(--glass-bg, rgba(30, 30, 30, 0.75)), #ffffff 6%)
    inset !important;
  -webkit-text-fill-color: var(--color-primary, #ddd) !important;
  caret-color: var(--color-primary, #ddd);
  border-radius: 12px;
}

.icon--solid use,
.icon--solid path,
.icon--solid rect,
.icon--solid circle,
.icon--solid polygon {
  fill: var(--color-primary);
  stroke: none;
}

.icon--stroke use,
.icon--stroke path,
.icon--stroke line,
.icon--stroke polyline,
.icon--stroke rect,
.icon--stroke circle {
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 40;
  stroke-linecap: round;
  stroke-linejoin: round;
}

:root {
  --ico: 26px;
  --ico-stroke: 26;
}

.ico {
  display: block;
  width: var(--ico);
  height: var(--ico);

  flex-shrink: 0;
}

.icon--solid :is(use, path, rect, circle, polygon) {
  fill: currentColor;
  stroke: none;
}

.icon--stroke :is(use, path, line, polyline, rect, circle, polygon) {
  fill: none;
  stroke: var(--color-primary);
  stroke-width: var(--ico-stroke);
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ico--16 {
  --ico: 16px;
}
.ico--18 {
  --ico: 18px;
}
.ico--20 {
  --ico: 20px;
}
.ico--24 {
  --ico: 24px;
}
.ico--28 {
  --ico: 28px;
}
.ico--32 {
  --ico: 32px;
}
.ico--40 {
  --ico: 40px;
}

.stroke--40 {
  --ico-stroke: 40;
}
.stroke--60 {
  --ico-stroke: 60;
}
.stroke--80 {
  --ico-stroke: 80;
}
.stroke--100 {
  --ico-stroke: 100;
}

.dash__divider--horizontal {
  position: relative;
  height: 1px;
  width: 100%;
  margin: clamp(20px, 4vw, 28px) 0;
  pointer-events: none;
}

.dash__divider--horizontal.dash__divider--nav {
  margin: clamp(6px, 4vw, 10px) 0 !important;
}

.dash__divider--horizontal::before {
  content: "";
  position: absolute;
  left: 1%;
  right: 1%;
  top: 0;
  height: 1px;
  background: linear-gradient(
    to right,
    color-mix(in srgb, var(--color-primary) 0%, transparent) 0%,
    color-mix(in srgb, var(--color-primary) 70%, transparent) 50%,
    color-mix(in srgb, var(--color-primary) 0%, transparent) 100%
  );
  opacity: 0.7;
}

.block__divider {
  position: relative;
  height: 1px;
  max-width: var(--page-max);
  pointer-events: none;
}

.block__divider--top {
  margin: clamp(40px, 4vw, 50px) auto 6px auto;
}

.block__divider--bottom {
  margin: 16px auto clamp(8px, 4vw, 28px) auto;
}

.block__divider::before {
  content: "";
  position: absolute;
  left: 1%;
  right: 1%;
  top: 0;
  height: 1px;

  background: linear-gradient(
    to right,
    color-mix(in srgb, var(--color-primary) 0%, transparent) 0%,
    color-mix(in srgb, var(--color-primary) 70%, transparent) 50%,
    color-mix(in srgb, var(--color-primary) 0%, transparent) 100%
  );
  opacity: 0.7;
}

#demo-pano,
#demo-inter,
#demo-cabinet {
  scroll-margin-top: clamp(120px, 18vh, 300px);
}

.ext-mark {
  display: inline-block;
  margin-left: 0.35em;
  transform: translateY(-0.18em);
  opacity: 0.55;
  font-size: 0.9em;
  line-height: 1;
  pointer-events: none;
}