* {
  box-sizing: border-box;
}

html {
  min-width: 32rem;
  background: var(--color-surface-muted);
  color: var(--color-text);
  scroll-behavior: smooth;
}

body {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  margin: 0;
  background: var(--color-surface-muted);
  color: var(--color-text);
  font-family: "Pretendard GOV";
  font-size: var(--font-body-medium);
  font-weight: 400;
  line-height: var(--line-height);
  text-rendering: optimizeLegibility;
}

#mainContent {
  flex: 1;
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button,
input[type="file"]::file-selector-button {
  cursor: pointer;
}

button:disabled,
input:disabled,
select:disabled {
  cursor: not-allowed;
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 0.3em;
}

img,
video,
canvas {
  display: block;
  max-width: 100%;
}

button,
[href],
input,
select,
textarea,
[tabindex]:not([tabindex="-1"]) {
  outline: 0.3rem solid transparent;
  outline-offset: 0.2rem;
}

button:focus-visible,
[href]:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:not([tabindex="-1"]):focus-visible {
  outline-color: var(--color-focus);
}

[hidden] {
  display: none !important;
}

.visually-hidden {
  position: absolute !important;
  width: 0.1rem !important;
  height: 0.1rem !important;
  padding: 0 !important;
  margin: -0.1rem !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  clip-path: inset(50%) !important;
  border: 0 !important;
  white-space: nowrap !important;
}

.visually-hidden:focus {
  position: fixed !important;
  z-index: 1000;
  top: var(--space-2);
  left: var(--space-2);
  width: auto !important;
  height: auto !important;
  padding: var(--space-3) var(--space-4) !important;
  margin: 0 !important;
  overflow: visible !important;
  clip: auto !important;
  clip-path: none !important;
  background: var(--color-surface);
  white-space: normal !important;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.icon {
  width: 2.4rem;
  height: 2.4rem;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: var(--space-2);
  left: var(--space-2);
  min-height: var(--control-min);
  padding: 1rem var(--space-4);
  border: 0.2rem solid var(--color-text);
  border-radius: var(--radius-control);
  background: var(--color-surface);
  color: var(--color-text);
  font-weight: 700;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  z-index: 40;
  top: 0;
  min-height: var(--header-height);
  border-bottom: 0.1rem solid var(--color-border);
  background: var(--color-surface);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 4.8rem, var(--content-max));
  min-height: var(--header-height);
  margin: 0 auto;
  gap: var(--space-4);
}

.brand-button {
  display: inline-flex;
  min-height: var(--control-min);
  align-items: center;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--color-text);
  gap: var(--space-3);
  text-align: left;
}

.brand-mark {
  display: grid;
  width: 4rem;
  height: 4rem;
  place-items: center;
  border-radius: var(--radius-control);
  background: var(--color-primary);
  color: var(--color-surface);
  font-size: 2.2rem;
  font-weight: 700;
}

html[data-contrast="high"] .brand-mark {
  color: #000;
}

.brand-copy {
  display: grid;
  line-height: 1.35;
}

.brand-copy strong {
  font-size: var(--font-heading-small);
}

.brand-copy span {
  color: var(--color-text-muted);
  font-size: var(--font-body-small);
}

.header-actions,
.inline-actions,
.status-row,
.button-row,
.card-footer,
.meeting-status,
.meeting-actions,
.control-dock,
.panel-tabs,
.participant-actions,
.file-row,
.notice-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.mode-badge,
.badge,
.status-chip {
  display: inline-flex;
  min-height: 3.2rem;
  align-items: center;
  padding: 0.4rem 1rem;
  border: 0.1rem solid var(--color-border-strong);
  border-radius: var(--radius-chip);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--font-body-small);
  font-weight: 700;
  gap: 0.6rem;
  white-space: nowrap;
}

.mode-badge .icon,
.badge .icon,
.status-chip .icon {
  width: 1.8rem;
  height: 1.8rem;
}

.badge--primary {
  border-color: var(--color-primary);
  background: var(--color-surface-strong);
}

.badge--muted {
  color: var(--color-text-muted);
}

.button {
  display: inline-flex;
  min-height: var(--control-min);
  align-items: center;
  justify-content: center;
  padding: 0.9rem var(--space-4);
  border: 0.1rem solid transparent;
  border-radius: var(--radius-control);
  background: var(--color-primary);
  color: var(--krds-color-white);
  font-weight: 700;
  gap: var(--space-2);
  text-decoration: none;
}

.button:hover {
  background: var(--color-primary-hover);
}

.button--secondary {
  border-color: var(--color-primary);
  background: var(--color-surface);
  color: var(--color-primary);
}

.button--secondary:hover,
.button--tertiary:hover {
  background: var(--color-surface-strong);
}

.button--tertiary {
  border-color: var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
}

.button--danger {
  border: 0.2rem solid var(--color-text);
  background: var(--color-text);
  color: var(--color-surface);
}

.button--compact {
  min-height: var(--control-min);
  padding: 0.6rem 1.2rem;
  font-size: var(--font-body-small);
}

.button--icon {
  width: var(--control-min);
  padding: 0;
}

.button[aria-pressed="true"] {
  border-color: var(--color-text);
  background: var(--color-surface-strong);
  color: var(--color-text);
}

html[data-contrast="high"] .button {
  border: 0.2rem solid currentColor;
  color: #000;
}

html[data-contrast="high"] .button--secondary,
html[data-contrast="high"] .button--tertiary {
  color: #fff;
}

.page-shell {
  width: min(100% - 4.8rem, var(--content-max));
  margin: 0 auto;
  padding: var(--space-7) 0 var(--space-8);
}

.eyebrow {
  display: flex;
  align-items: center;
  margin: 0 0 var(--space-2);
  color: var(--color-primary);
  font-weight: 700;
  gap: var(--space-2);
}

.eyebrow .icon {
  width: 2rem;
  height: 2rem;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.5;
}

h1 {
  margin-bottom: var(--space-4);
  font-size: var(--font-heading-large);
}

h2 {
  margin-bottom: var(--space-4);
  font-size: var(--font-heading-medium);
}

h3 {
  margin-bottom: var(--space-3);
  font-size: var(--font-heading-small);
}

.hero {
  display: grid;
  padding: var(--space-7);
  border: 0.1rem solid var(--color-border);
  border-radius: var(--radius-layer);
  background:
    linear-gradient(
      135deg,
      var(--color-surface-strong),
      var(--color-surface) 60%
    );
  gap: var(--space-5);
  grid-template-columns: minmax(0, 1.15fr) minmax(38rem, 0.85fr);
}

.hero h1 {
  max-width: 18ch;
  margin-bottom: var(--space-3);
  font-size: var(--font-display-small);
}

.hero p {
  max-width: 66ch;
  margin-bottom: 0;
}

.hero-status {
  display: grid;
  align-content: center;
  padding: var(--space-5);
  border: 0.1rem solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  gap: var(--space-3);
}

.hero-status p {
  display: flex;
  align-items: flex-start;
  margin: 0;
  gap: var(--space-2);
}

.site-footer {
  border-top: 0.1rem solid var(--color-border);
  background: var(--color-surface);
}

.site-footer__inner,
.site-footer__legal {
  width: min(100% - 4.8rem, var(--content-max));
  margin: 0 auto;
}

.site-footer__inner {
  display: grid;
  padding: var(--space-7) 0 var(--space-6);
  gap: var(--space-7);
  grid-template-columns: minmax(0, 1.4fr) minmax(30rem, 0.6fr);
}

.site-footer h2 {
  margin-bottom: var(--space-2);
  font-size: var(--font-heading-small);
}

.site-footer p {
  max-width: 54ch;
  margin-bottom: var(--space-3);
  color: var(--color-text-muted);
}

.site-footer__eyebrow {
  display: block;
  margin-bottom: var(--space-1);
  color: var(--color-primary);
  font-size: var(--font-body-small);
  font-weight: 700;
}

.site-footer__website,
.site-footer__contact a {
  display: inline-flex;
  min-height: var(--control-min);
  align-items: center;
}

.site-footer__website {
  gap: var(--space-1);
  font-weight: 700;
}

.site-footer__contact address {
  display: grid;
  font-style: normal;
  gap: var(--space-1);
}

.site-footer__contact a {
  width: fit-content;
}

.site-footer__contact span {
  color: var(--color-text-muted);
}

.site-footer__legal {
  display: flex;
  justify-content: space-between;
  padding: var(--space-4) 0 var(--space-5);
  border-top: 0.1rem solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--font-body-small);
  gap: var(--space-3);
}

.action-grid,
.layout-grid {
  display: grid;
  margin-top: var(--space-5);
  gap: var(--space-5);
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.action-card,
.content-card,
.device-card,
.panel,
.layout-card {
  border: 0.1rem solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
}

.action-card {
  display: flex;
  min-height: 34rem;
  flex-direction: column;
  padding: var(--space-5);
}

.action-card__icon {
  display: grid;
  width: 5.6rem;
  height: 5.6rem;
  margin-bottom: var(--space-4);
  place-items: center;
  border-radius: var(--radius-control);
  background: var(--color-surface-strong);
  color: var(--color-primary);
}

.action-card__icon .icon {
  width: 3.2rem;
  height: 3.2rem;
}

.action-card p {
  color: var(--color-text-muted);
}

.action-card form {
  display: grid;
  margin-top: auto;
  gap: var(--space-4);
}

.form-field {
  display: grid;
  gap: var(--space-2);
}

.form-field label,
.field-label {
  font-weight: 700;
}

.form-field input,
.form-field select,
.form-field textarea,
.input {
  width: 100%;
  min-height: 4.8rem;
  padding: 1rem var(--space-4);
  border: 0.1rem solid var(--color-border-strong);
  border-radius: var(--radius-control);
  background: var(--color-surface);
}

.form-field textarea {
  min-height: 11rem;
  resize: vertical;
}

.field-help,
.field-error,
.secondary-text,
.meta-text {
  color: var(--color-text-muted);
  font-size: var(--font-body-small);
}

.field-error {
  display: flex;
  align-items: flex-start;
  color: var(--color-text);
  font-weight: 700;
  gap: var(--space-2);
}

.field-error::before {
  content: "!";
  display: grid;
  width: 2rem;
  height: 2rem;
  flex: 0 0 auto;
  place-items: center;
  border: 0.2rem solid currentColor;
  border-radius: 50%;
  line-height: 1;
}

.preflight-header {
  max-width: 78rem;
  margin-bottom: var(--space-5);
}

.step-list {
  display: grid;
  padding: 0;
  margin: 0 0 var(--space-5);
  gap: var(--space-2);
  grid-template-columns: repeat(5, minmax(0, 1fr));
  list-style: none;
}

.step-list li {
  display: flex;
  min-height: 4.8rem;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  border-top: 0.4rem solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--font-body-small);
  font-weight: 700;
  gap: var(--space-2);
}

.step-list li[data-state="current"],
.step-list li[data-state="done"] {
  border-color: var(--color-primary);
  color: var(--color-text);
}

.step-number {
  display: grid;
  width: 2.8rem;
  height: 2.8rem;
  flex: 0 0 auto;
  place-items: center;
  border: 0.1rem solid currentColor;
  border-radius: 50%;
}

.preflight-layout {
  display: grid;
  align-items: start;
  gap: var(--space-5);
  grid-template-columns: minmax(28rem, 0.72fr) minmax(0, 1.28fr);
}

.preview-card {
  position: sticky;
  top: calc(var(--header-height) + var(--space-4));
  overflow: hidden;
  border: 0.1rem solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--krds-color-gray-90);
  color: var(--krds-color-white);
}

.preview-media {
  position: relative;
  display: grid;
  min-height: 38rem;
  place-items: center;
  background: var(--krds-color-gray-90);
}

.preview-media video,
.preview-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.preview-placeholder {
  display: grid;
  max-width: 32rem;
  padding: var(--space-5);
  place-items: center;
  gap: var(--space-3);
  text-align: center;
}

.preview-placeholder .icon {
  width: 4rem;
  height: 4rem;
}

.preview-caption {
  display: flex;
  min-height: 5.6rem;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-top: 0.1rem solid color-mix(in srgb, #fff 30%, transparent);
  gap: var(--space-3);
}

.device-stack {
  display: grid;
  gap: var(--space-4);
}

.device-card {
  padding: var(--space-5);
}

.device-card__heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  gap: var(--space-3);
}

.device-card__heading h2 {
  margin: 0;
  font-size: var(--font-heading-small);
}

.device-status {
  display: flex;
  margin-top: var(--space-3);
  align-items: center;
  gap: var(--space-2);
}

.meter {
  position: relative;
  height: 1.2rem;
  overflow: hidden;
  border: 0.1rem solid var(--color-border-strong);
  border-radius: var(--radius-chip);
  background: var(--color-surface-muted);
}

.meter > span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--color-primary);
  transition: width 80ms linear;
}

.source-options {
  display: grid;
  margin: 0;
  padding: 0;
  gap: var(--space-3);
  list-style: none;
}

.source-option {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2) var(--space-3);
}

.source-option input {
  width: 2rem;
  height: 2rem;
  margin-top: 0.3rem;
}

.source-option small {
  grid-column: 2;
  color: var(--color-text-muted);
}

.preflight-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 0.1rem solid var(--color-border);
  gap: var(--space-4);
}

.meeting-shell {
  min-height: calc(100vh - var(--header-height));
  padding: var(--space-3);
  background: var(--color-surface-muted);
}

.meeting-topbar {
  display: flex;
  min-height: 5.6rem;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-3);
  border: 0.1rem solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  gap: var(--space-3);
}

.room-identity {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.room-code {
  font-size: var(--font-heading-small);
  letter-spacing: 0.08em;
}

.meeting-layout {
  display: grid;
  min-height: calc(100vh - 16rem);
  align-items: stretch;
  gap: var(--space-3);
  grid-template-columns: minmax(22rem, 26rem) minmax(0, 1fr) minmax(28rem, 34rem);
}

.panel {
  min-height: 0;
  overflow: hidden;
}

.panel-header {
  display: flex;
  min-height: 5.6rem;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-bottom: 0.1rem solid var(--color-border);
  gap: var(--space-3);
}

.panel-header h2,
.panel-header h3 {
  margin: 0;
  font-size: var(--font-heading-small);
}

.panel-content {
  height: calc(100% - 5.6rem);
  overflow: auto;
  padding: var(--space-3);
}

.participant-list,
.message-list,
.event-list,
.file-list,
.notice-list,
.audio-strip {
  display: grid;
  margin: 0;
  padding: 0;
  gap: var(--space-2);
  list-style: none;
}

.participant-item {
  padding: var(--space-3);
  border: 0.1rem solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-surface-muted);
}

.participant-summary {
  display: grid;
  width: 100%;
  min-height: var(--control-min);
  align-items: center;
  padding: 0;
  border: 0;
  background: transparent;
  grid-template-columns: 3.6rem minmax(0, 1fr) auto;
  gap: var(--space-2);
  text-align: left;
}

.avatar {
  display: grid;
  width: 3.6rem;
  height: 3.6rem;
  place-items: center;
  border: 0.1rem solid var(--color-border-strong);
  border-radius: 50%;
  background: var(--color-surface);
  font-weight: 700;
}

.participant-name {
  display: grid;
  min-width: 0;
}

.participant-name strong,
.participant-name span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.participant-name span {
  color: var(--color-text-muted);
  font-size: var(--font-body-small);
}

.participant-detail {
  display: grid;
  padding-top: var(--space-3);
  gap: var(--space-3);
}

.detail-list {
  display: grid;
  margin: 0;
  gap: var(--space-2);
}

.detail-list > div {
  display: grid;
  grid-template-columns: minmax(7.2rem, auto) minmax(0, 1fr);
  gap: var(--space-2);
}

.detail-list dt {
  color: var(--color-text-muted);
  font-weight: 700;
}

.detail-list dd {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
}

.participant-actions {
  flex-wrap: wrap;
}

.participant-actions .button {
  flex: 1 1 4.4rem;
}

.stage-column {
  display: grid;
  min-width: 0;
  gap: var(--space-3);
  grid-template-rows: minmax(0, 1fr) auto auto;
}

.video-stage {
  position: relative;
  min-height: 38rem;
  overflow: hidden;
  border-radius: var(--radius-card);
  background: var(--krds-color-gray-90);
}

.video-grid {
  display: grid;
  width: 100%;
  height: 100%;
  min-height: 38rem;
  padding: var(--space-2);
  gap: var(--space-2);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(2, minmax(0, 1fr));
}

.video-grid[data-layout="one"] {
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
}

.video-grid[data-layout="two"] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: 1fr;
}

.video-grid[data-layout="four"] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(2, minmax(0, 1fr));
}

.video-grid[data-layout="six"] {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: repeat(3, minmax(0, 1fr));
}

.video-grid[data-layout="six"] .video-tile:first-child {
  grid-column: span 2;
  grid-row: span 2;
}

.video-grid[data-layout="nine"] {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: repeat(3, minmax(0, 1fr));
}

.video-grid[data-layout="six"] .video-tile,
.video-grid[data-layout="nine"] .video-tile {
  min-height: 0;
}

.video-tile {
  position: relative;
  display: grid;
  min-height: 15rem;
  overflow: hidden;
  place-items: center;
  border: 0.1rem solid color-mix(in srgb, #fff 35%, transparent);
  border-radius: var(--radius-card);
  background: color-mix(in srgb, var(--krds-color-gray-90) 86%, #fff);
  color: var(--krds-color-white);
}

.video-tile[data-speaking="true"] {
  border: 0.4rem solid var(--krds-color-secondary-10);
}

.video-tile video,
.video-tile img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-placeholder {
  display: grid;
  max-width: 22rem;
  padding: var(--space-4);
  place-items: center;
  gap: var(--space-2);
  text-align: center;
}

.video-placeholder .avatar {
  width: 6.4rem;
  height: 6.4rem;
  border-color: #fff;
  background: transparent;
  font-size: 2.4rem;
}

.video-label {
  position: absolute;
  z-index: 2;
  right: var(--space-2);
  bottom: var(--space-2);
  left: var(--space-2);
  display: flex;
  min-height: 4rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1rem;
  border: 0.1rem solid color-mix(in srgb, #fff 42%, transparent);
  border-radius: var(--radius-control);
  background: color-mix(in srgb, var(--krds-color-gray-90) 90%, transparent);
  color: #fff;
  gap: var(--space-2);
}

.video-label__state {
  display: flex;
  gap: var(--space-2);
}

.video-label .icon {
  width: 2rem;
  height: 2rem;
}

.screen-focus,
.canvas-focus {
  position: absolute;
  z-index: 4;
  inset: var(--space-2);
  overflow: hidden;
  border-radius: var(--radius-card);
  background: var(--color-surface);
  color: var(--color-text);
}

.screen-focus video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}

.focus-toolbar {
  position: absolute;
  z-index: 5;
  top: var(--space-2);
  right: var(--space-2);
  display: flex;
  padding: var(--space-2);
  border: 0.1rem solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-surface);
  gap: var(--space-2);
}

.canvas-focus canvas {
  position: absolute;
  z-index: 2;
  inset: 0;
  width: 100%;
  height: 100%;
  touch-action: none;
}

.canvas-focus iframe {
  position: absolute;
  z-index: 1;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: var(--color-surface);
}

.canvas-focus[data-interaction="preview"] canvas {
  pointer-events: none;
}

.file-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.audio-strip {
  display: flex;
  min-height: 5.2rem;
  align-items: center;
  padding: var(--space-2);
  overflow-x: auto;
  border: 0.1rem solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
}

.audio-chip {
  display: inline-flex;
  min-height: 3.6rem;
  flex: 0 0 auto;
  align-items: center;
  padding: 0.5rem 1rem;
  border: 0.1rem solid var(--color-border);
  border-radius: var(--radius-chip);
  gap: var(--space-2);
}

.control-dock {
  justify-content: center;
  padding: var(--space-2);
  overflow-x: auto;
  border: 0.1rem solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
}

.control-dock .button {
  flex: 0 0 auto;
}

.panel-tabs {
  padding: var(--space-2);
  overflow-x: auto;
  border-bottom: 0.1rem solid var(--color-border);
}

.panel-tab {
  min-height: var(--control-min);
  padding: 0.7rem 1rem;
  border: 0;
  border-bottom: 0.3rem solid transparent;
  background: transparent;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.panel-tab[aria-selected="true"] {
  border-color: var(--color-primary);
  color: var(--color-text);
  font-weight: 700;
}

.collab-content {
  display: grid;
  height: calc(100% - 6.1rem);
  min-height: 0;
  grid-template-rows: minmax(0, 1fr) auto;
}

.collab-scroll {
  min-height: 0;
  overflow: auto;
  padding: var(--space-3);
}

.composer {
  display: grid;
  padding: var(--space-3);
  border-top: 0.1rem solid var(--color-border);
  gap: var(--space-2);
}

.composer textarea {
  min-height: 7.2rem;
  resize: vertical;
}

.message-item,
.event-item,
.file-item,
.notice-item {
  padding: var(--space-3);
  border: 0.1rem solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-surface-muted);
}

.message-item p,
.event-item p,
.notice-item p {
  margin-bottom: var(--space-2);
  overflow-wrap: anywhere;
}

.message-meta,
.event-meta {
  display: flex;
  justify-content: space-between;
  color: var(--color-text-muted);
  font-size: var(--font-body-small);
  gap: var(--space-2);
}

.file-row {
  justify-content: space-between;
}

.empty-state {
  display: grid;
  min-height: 18rem;
  place-items: center;
  padding: var(--space-5);
  color: var(--color-text-muted);
  text-align: center;
}

.layout-card {
  display: grid;
  min-height: 12rem;
  place-items: center;
  padding: var(--space-3);
  gap: var(--space-2);
}

.layout-card[aria-pressed="true"] {
  border: 0.3rem solid var(--color-primary);
}

.layout-preview {
  display: grid;
  width: 8rem;
  height: 5rem;
  gap: 0.3rem;
  grid-template-columns: repeat(2, 1fr);
}

.layout-preview span {
  border: 0.1rem solid var(--color-border-strong);
  border-radius: var(--radius-indicator);
  background: var(--color-surface-strong);
}

.toast-region {
  position: fixed;
  z-index: 200;
  right: var(--space-4);
  bottom: var(--space-4);
  display: grid;
  width: min(42rem, calc(100vw - 3.2rem));
  gap: var(--space-2);
  pointer-events: none;
}

.toast {
  display: grid;
  padding: var(--space-3) var(--space-4);
  border: 0.2rem solid var(--color-text);
  border-radius: var(--radius-control);
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: 0 0.8rem 2.4rem color-mix(in srgb, #000 22%, transparent);
  gap: var(--space-1);
  pointer-events: auto;
}

.toast strong {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.modal-overlay {
  position: fixed;
  z-index: 300;
  inset: 0;
  display: grid;
  padding: var(--space-4);
  place-items: center;
  background: var(--color-dim);
}

.modal {
  display: grid;
  width: min(58rem, 100%);
  max-height: calc(100vh - 3.2rem);
  overflow: hidden;
  border: 0.2rem solid var(--color-border-strong);
  border-radius: var(--radius-layer);
  background: var(--color-surface);
  box-shadow: 0 1.6rem 4rem color-mix(in srgb, #000 32%, transparent);
  grid-template-rows: auto minmax(0, auto) auto;
}

.modal__header,
.modal__body,
.modal__footer {
  padding: var(--space-5);
}

.modal__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding-bottom: var(--space-3);
  gap: var(--space-3);
}

.modal__header h2 {
  margin: 0;
}

.modal__body {
  overflow-y: auto;
  padding-top: 0;
}

.modal__footer {
  display: flex;
  justify-content: flex-end;
  border-top: 0.1rem solid var(--color-border);
  gap: var(--space-2);
}

.announcement {
  position: relative;
  border-top: 0.8rem solid var(--color-primary);
}

.announcement .modal__header {
  padding-right: 7.2rem;
}

.announcement-close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
}

.announcement-message {
  padding: var(--space-4);
  border: 0.1rem solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-surface-strong);
  font-size: var(--font-heading-small);
  font-weight: 700;
  white-space: pre-wrap;
}

.mobile-tabbar {
  position: fixed;
  z-index: 120;
  right: 0;
  bottom: 0;
  left: 0;
  display: none;
  height: 7.2rem;
  padding: 0.4rem max(0.4rem, env(safe-area-inset-right))
    max(0.4rem, env(safe-area-inset-bottom))
    max(0.4rem, env(safe-area-inset-left));
  border-top: 0.1rem solid var(--color-border);
  background: var(--color-surface);
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.mobile-tabbar button {
  display: grid;
  min-height: 5.6rem;
  place-items: center;
  padding: 0.4rem;
  border: 0;
  border-top: 0.3rem solid transparent;
  background: transparent;
  color: var(--color-text-muted);
  font-size: var(--font-body-small);
}

.mobile-tabbar button[aria-current="page"] {
  border-color: var(--color-primary);
  color: var(--color-text);
  font-weight: 700;
}

.mobile-tabbar .icon {
  width: 2.4rem;
  height: 2.4rem;
}

@media (max-width: 1279px) {
  .meeting-layout {
    grid-template-columns: minmax(0, 1fr) minmax(28rem, 34rem);
  }

  .participant-panel {
    position: fixed;
    z-index: 100;
    top: calc(var(--header-height) + var(--space-2));
    bottom: var(--space-2);
    left: var(--space-2);
    width: min(38rem, calc(100vw - 3.2rem));
    box-shadow: 0 1.6rem 4rem color-mix(in srgb, #000 28%, transparent);
  }
}

@media (max-width: 1023px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
  }

  .action-grid {
    grid-template-columns: 1fr;
  }

  .action-card {
    min-height: auto;
  }

  .preflight-layout {
    grid-template-columns: 1fr;
  }

  .preview-card {
    position: static;
  }

  .meeting-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .meeting-topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .meeting-status {
    width: 100%;
    overflow-x: auto;
  }

  .meeting-actions {
    width: 100%;
  }

  .meeting-actions .button {
    flex: 1;
  }

  .control-dock {
    justify-content: flex-start;
  }

  .collab-panel {
    position: fixed;
    z-index: 100;
    top: calc(var(--header-height) + var(--space-2));
    right: var(--space-2);
    bottom: var(--space-2);
    width: min(42rem, calc(100vw - 3.2rem));
    box-shadow: 0 1.6rem 4rem color-mix(in srgb, #000 28%, transparent);
  }
}

@media (max-width: 767px) {
  .site-header__inner,
  .page-shell,
  .site-footer__inner,
  .site-footer__legal {
    width: calc(100% - 3.2rem);
  }

  .site-footer__inner {
    padding: var(--space-6) 0 var(--space-5);
    gap: var(--space-5);
  }

  .site-footer__legal {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-header__inner {
    min-height: 6.4rem;
  }

  .brand-copy span,
  .mode-badge {
    display: none;
  }

  .button--compact {
    padding-right: 1rem;
    padding-left: 1rem;
  }

  #contrastButton {
    width: var(--control-min);
    padding: 0;
    font-size: 0;
  }

  #contrastButton .icon {
    width: 2.4rem;
    height: 2.4rem;
  }

  .page-shell {
    padding-top: var(--space-5);
  }

  .hero {
    padding: var(--space-5);
  }

  .action-grid,
  .layout-grid {
    grid-template-columns: 1fr;
  }

  .step-list {
    overflow-x: auto;
    grid-template-columns: repeat(5, minmax(13rem, 1fr));
  }

  .preview-media {
    min-height: 28rem;
  }

  .preflight-footer {
    align-items: stretch;
    flex-direction: column-reverse;
  }

  .preflight-footer .button {
    width: 100%;
  }

  .meeting-shell {
    padding: var(--space-2) var(--space-2) 8rem;
  }

  .video-stage,
  .video-grid {
    min-height: calc(100dvh - 28rem);
  }

  .video-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
  }

  .video-tile {
    width: calc(100vw - 3.2rem);
    min-width: calc(100vw - 3.2rem);
    scroll-snap-align: center;
  }

  .control-dock .button span {
    display: none;
  }

  .participant-panel,
  .collab-panel {
    top: auto;
    right: var(--space-2);
    bottom: 7.8rem;
    left: var(--space-2);
    width: auto;
    height: min(68rem, calc(100dvh - 10rem));
    border-radius: var(--radius-layer) var(--radius-layer) 0 0;
  }

  .mobile-tabbar:not([hidden]) {
    display: grid;
  }

  .toast-region {
    right: var(--space-2);
    bottom: 8.2rem;
    width: calc(100vw - 3.2rem);
  }

  .modal-overlay {
    align-items: end;
    padding: 0;
  }

  .modal {
    width: 100%;
    max-height: calc(100dvh - 2.4rem);
    border-right: 0;
    border-bottom: 0;
    border-left: 0;
    border-radius: var(--radius-layer) var(--radius-layer) 0 0;
  }

  .modal__header,
  .modal__body,
  .modal__footer {
    padding: var(--space-4);
  }

  .modal__footer {
    align-items: stretch;
    flex-direction: column-reverse;
  }

  .modal__footer .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-contrast: more) {
  .action-card,
  .content-card,
  .device-card,
  .panel,
  .layout-card,
  .meeting-topbar,
  .control-dock {
    border-width: 0.2rem;
  }
}