:root {
  --ink: #1b2923;
  --ink-soft: #5e6d65;
  --forest: #244c3e;
  --forest-bright: #315f4e;
  --forest-pale: #dce8e0;
  --paper: #f4f1e9;
  --paper-raised: #fffdf8;
  --line: #d4d3ca;
  --danger: #a43d34;
  color: var(--ink);
  background: var(--paper);
  font-family: Georgia, "Times New Roman", serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 88% 5%, rgb(49 95 78 / 8%), transparent 28rem),
    var(--paper);
}

a {
  color: var(--forest-bright);
  text-underline-offset: 0.18em;
}

button,
input {
  font: inherit;
}

button:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 3px solid rgb(49 95 78 / 24%);
  outline-offset: 3px;
}

.portal-page {
  min-height: 100vh;
}

.portal-header {
  display: flex;
  width: min(100% - 3rem, 82rem);
  min-height: 6.5rem;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  background: var(--forest);
  color: #fff;
  font: 700 0.72rem/1 Arial, sans-serif;
  letter-spacing: 0.12em;
}

.brand-copy {
  display: grid;
  gap: 0.12rem;
}

.brand-copy strong {
  font-size: 1.12rem;
  font-weight: 600;
}

.brand-copy span {
  color: var(--ink-soft);
  font: 0.76rem/1.25 Arial, sans-serif;
}

.header-action {
  margin: 0;
}

.button {
  display: inline-flex;
  min-height: 2.9rem;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 0.25rem;
  cursor: pointer;
  font: 600 0.88rem/1 Arial, sans-serif;
  padding: 0.85rem 1.15rem;
  text-decoration: none;
  transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease;
}

.button-primary {
  background: var(--forest-bright);
  color: #fff;
}

.button-primary:hover:not(:disabled) {
  background: var(--forest);
}

.button-quiet {
  border-color: var(--line);
  background: transparent;
  color: var(--ink);
}

.button-quiet:hover {
  border-color: var(--forest-bright);
  color: var(--forest-bright);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.42;
}

.home-content {
  width: min(100% - 3rem, 82rem);
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 7rem) 0 5rem;
}

.home-introduction {
  max-width: 58rem;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.home-introduction h1 {
  margin: 0;
  font-size: clamp(3rem, 7vw, 6.75rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.96;
}

.home-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(20rem, 0.75fr);
  gap: 1.25rem;
  align-items: start;
}

.surface {
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  background: rgb(255 253 248 / 82%);
  box-shadow: 0 1.1rem 3rem rgb(36 76 62 / 6%);
  padding: clamp(1.5rem, 3vw, 2.5rem);
}

.section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.surface h2,
.surface h3 {
  margin: 0;
  font-weight: 400;
  letter-spacing: -0.025em;
}

.surface h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
}

.surface h3 {
  font-size: 1.5rem;
}

.status {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.45rem;
  color: var(--ink-soft);
  font: 600 0.76rem/1 Arial, sans-serif;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.status-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: #89928d;
}

.status-online .status-dot {
  background: #3d8b65;
  box-shadow: 0 0 0 0.22rem rgb(61 139 101 / 13%);
}

.computer-empty,
.computer-paired {
  display: flex;
  min-height: 12rem;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding-top: 1.5rem;
}

.computer-empty p,
.computer-paired p,
.surface-copy,
.field-guidance {
  color: var(--ink-soft);
  font: 0.92rem/1.6 Arial, sans-serif;
}

.computer-empty p,
.computer-paired p {
  max-width: 31rem;
  margin: 0.75rem 0 0;
}

.pairing-surface h2 {
  margin-bottom: 1rem;
}

.surface-copy {
  margin: 0 0 1.8rem;
}

.pairing-field {
  display: grid;
  gap: 0.55rem;
}

.pairing-field label {
  font: 600 0.82rem/1.4 Arial, sans-serif;
}

.pairing-entry {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.55rem;
}

.pairing-entry input {
  width: 100%;
  min-height: 3rem;
  border: 1px solid #b8bdb6;
  border-radius: 0.25rem;
  background: var(--paper-raised);
  color: var(--ink);
  font: 600 1rem/1 Arial, sans-serif;
  letter-spacing: 0.12em;
  padding: 0.8rem 0.9rem;
  text-transform: uppercase;
}

.pairing-entry input:focus {
  border-color: var(--forest-bright);
}

.field-guidance {
  margin: 0;
  font-size: 0.78rem;
}

.field-error {
  margin: 0;
  color: var(--danger);
  font: 600 0.82rem/1.4 Arial, sans-serif;
}

.download-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  font: 600 0.88rem/1.4 Arial, sans-serif;
  padding-top: 1.3rem;
  text-decoration: none;
}

.signin-page {
  display: grid;
  grid-template-columns: minmax(20rem, 0.92fr) minmax(25rem, 1.08fr);
  min-height: 100vh;
}

.signin-introduction,
.signin-panel {
  padding: clamp(2rem, 6vw, 6rem);
}

.signin-introduction {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 4rem;
  color: #f9f6ee;
  background: var(--forest);
}

.wordmark {
  display: grid;
  width: 3rem;
  height: 3rem;
  place-items: center;
  border: 1px solid rgb(255 255 255 / 55%);
  border-radius: 50%;
  color: inherit;
  font: 600 0.86rem/1 Arial, sans-serif;
  letter-spacing: 0.12em;
  text-decoration: none;
}

.eyebrow {
  margin: 0 0 0.9rem;
  font: 600 0.73rem/1.4 Arial, sans-serif;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.signin-introduction h1 {
  margin: 0;
  font-size: clamp(3.5rem, 7vw, 7rem);
  font-weight: 400;
  letter-spacing: -0.055em;
}

.tagline {
  max-width: 25rem;
  margin: 1rem 0 0;
  color: #dbe7df;
  font-size: clamp(1.25rem, 2vw, 1.8rem);
  line-height: 1.35;
}

.introduction-copy {
  max-width: 31rem;
  margin: 0;
  color: #c9d8d0;
  font: 1rem/1.65 Arial, sans-serif;
}

.signin-panel {
  display: grid;
  place-items: center;
}

.signin-card {
  width: min(100%, 29rem);
}

.signin-card h2 {
  margin: 0;
  color: #1b2722;
  font-size: clamp(2.25rem, 4vw, 3.7rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1.02;
}

.signin-guidance {
  margin: 1.25rem 0 2.4rem;
  color: #637069;
  font: 0.96rem/1.6 Arial, sans-serif;
}

.signin-form {
  display: grid;
  gap: 1.4rem;
}

.field {
  display: grid;
  gap: 0.55rem;
}

.field label {
  font: 0.86rem/1.4 Arial, sans-serif;
}

.field label {
  font-weight: 600;
}

.field input {
  width: 100%;
  min-height: 3.35rem;
  border: 1px solid #b8bdb6;
  border-radius: 0.25rem;
  background: #fffdf8;
  color: #1e2a25;
  font: 1rem/1.3 Arial, sans-serif;
  padding: 0.85rem 1rem;
}

.field input:focus {
  border-color: var(--forest-bright);
  outline: 3px solid rgb(49 95 78 / 18%);
}

.signin-form button {
  min-height: 3.35rem;
  border: 0;
  border-radius: 0.25rem;
  background: var(--forest-bright);
  color: white;
  cursor: pointer;
  font: 600 0.94rem/1 Arial, sans-serif;
}

.signin-form button:hover {
  background: var(--forest);
}

.form-error {
  margin: -0.6rem 0 1.4rem;
  border-left: 3px solid #a43d34;
  background: #f6e4df;
  color: #7f2d27;
  font: 0.9rem/1.45 Arial, sans-serif;
  padding: 0.8rem 1rem;
}

.form-error ul {
  margin: 0;
  padding-left: 1.2rem;
}

.form-confirmation {
  margin: -0.6rem 0 1.4rem;
  border-left: 3px solid var(--forest-bright);
  background: var(--forest-pale);
  color: var(--forest);
  font: 0.9rem/1.45 Arial, sans-serif;
  padding: 0.8rem 1rem;
}

.form-secondary {
  margin: 1.5rem 0 0;
  color: var(--ink-soft);
  font: 0.88rem/1.5 Arial, sans-serif;
  text-align: center;
}

/* Session surface and toolbar. The toolbar owns its grid row; it is never an overlay
   over the video element that receives remote pointer and keyboard input. */
.session-page {
  display: grid;
  min-height: 100vh;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
  background: #101814;
}

.session-header {
  display: flex;
  min-height: 4.5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid rgb(255 255 255 / 12%);
  background: var(--paper-raised);
  padding: 0.75rem clamp(1rem, 3vw, 2.5rem);
}

.session-status {
  margin: 0;
  color: var(--ink-soft);
  font: 0.82rem/1.4 Arial, sans-serif;
}

.session-shell {
  display: grid;
  min-height: 0;
  grid-template-rows: minmax(0, 1fr) auto;
  background: #101814;
}

.session-screen {
  display: grid;
  min-width: 0;
  min-height: 0;
  place-items: center;
  overflow: hidden;
}

.session-video {
  display: block;
  max-width: 100%;
  max-height: 100%;
  outline: none;
}

.session-video:focus-visible {
  box-shadow: inset 0 0 0 3px #8eb7a5;
}

.session-toolbar {
  position: relative;
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: center;
  gap: 0.75rem 1.25rem;
  border-top: 1px solid rgb(255 255 255 / 16%);
  background: #f7f3ea;
  padding: 0.8rem clamp(0.75rem, 2vw, 1.5rem);
}

.session-toolbar-group {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 0.5rem;
}

.session-toolbar-group + .session-toolbar-group {
  border-left: 1px solid var(--line);
  padding-left: 1.25rem;
}

.session-toolbar .button {
  min-height: 2.55rem;
  white-space: nowrap;
}

.session-end-button {
  border-color: var(--danger);
  background: var(--danger);
  color: white;
}

.session-end-button:hover {
  background: #7f2d27;
}

.session-toolbar-label {
  color: var(--ink-soft);
  font: 600 0.72rem/1 Arial, sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.session-toolbar-files {
  position: relative;
}

.session-file-panel {
  position: absolute;
  right: 0;
  bottom: calc(100% + 0.75rem);
  width: min(28rem, calc(100vw - 2rem));
  max-height: min(28rem, calc(100vh - 8rem));
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  background: var(--paper-raised);
  box-shadow: 0 1rem 3rem rgb(0 0 0 / 24%);
  padding: 1rem;
}

.session-file-panel:empty {
  display: none;
}

.session-shell:fullscreen {
  width: 100vw;
  height: 100vh;
}

/* Session clipboard controls (session-clipboard.js). */
.clipboard-paste {
  min-height: 3rem;
  width: 100%;
}

.clipboard-status[data-kind="error"] {
  color: var(--danger);
}

.clipboard-offscreen {
  position: fixed;
  left: -9999px;
  top: 0;
}

/* Session file controls (session-files.js). */
.files-panel {
  border: 1px solid var(--line);
  padding: 0.75rem 1rem;
}

.files-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.files-item {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
}

.files-size,
.files-empty {
  color: var(--ink-soft);
}

.files-status[data-kind="error"] {
  color: var(--danger);
}

@media (max-width: 900px) {
  .home-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .portal-header,
  .home-content {
    width: min(100% - 2rem, 82rem);
  }

  .portal-header {
    min-height: 5.5rem;
  }

  .brand-copy span {
    display: none;
  }

  .signin-page {
    grid-template-columns: 1fr;
  }

  .signin-introduction {
    min-height: 19rem;
    gap: 2.5rem;
  }

  .signin-panel {
    min-height: calc(100vh - 19rem);
  }

  .introduction-copy {
    display: none;
  }

  .computer-empty,
  .computer-paired,
  .section-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .pairing-entry {
    grid-template-columns: 1fr;
  }

  .session-header {
    min-height: 3.75rem;
  }

  .session-brand .brand-copy span,
  .session-status,
  .session-toolbar-label {
    display: none;
  }

  .session-toolbar {
    flex-wrap: wrap;
  }

  .session-toolbar-group + .session-toolbar-group {
    padding-left: 0.75rem;
  }
}