:root {
  color-scheme: light;
  --surface: #ffffff;
  --ink: #18231d;
  --muted: #66736c;
  --track: #dce4df;
  --normal: #198754;
  --danger: #dc3545;
}

body {
  min-width: 320px;
  background:
    radial-gradient(circle at 15% 10%, rgba(25, 135, 84, 0.12), transparent 28rem),
    #f3f6f4;
  color: var(--ink);
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

body > main {
  flex: 1;
}

.landing-page {
  overflow: hidden;
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.landing-header {
  align-items: center;
  display: flex;
  justify-content: space-between;
  padding-bottom: 1.5rem;
  padding-top: 1.5rem;
}

.landing-hero {
  align-items: center;
  display: grid;
  gap: clamp(2rem, 6vw, 6rem);
  grid-template-columns: minmax(0, 1fr);
  isolation: isolate;
  min-height: min(43rem, 72vh);
  padding-bottom: 3rem;
  padding-top: 3rem;
  position: relative;
}

.landing-hero::before {
  background-image: url("/images/chronograph-sketch-background.png");
  background-position: center right;
  background-repeat: no-repeat;
  background-size: cover;
  content: "";
  inset: 0;
  opacity: 0.72;
  pointer-events: none;
  position: absolute;
  z-index: -1;
}

.landing-copy h1 {
  font-size: clamp(2.8rem, 6vw, 5.4rem);
  font-weight: 750;
  letter-spacing: -0.055em;
  line-height: 0.98;
  max-width: 11ch;
}

.landing-copy {
  max-width: 45rem;
}

.landing-lead {
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.65;
  margin: 1.75rem 0;
  max-width: 39rem;
}

.landing-primary-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.landing-secondary-action {
  color: var(--muted);
  margin-top: 1rem;
}

.session-state {
  align-items: center;
  color: var(--muted);
  display: flex;
  font-size: 0.9rem;
  gap: 0.5rem;
}

.session-state span {
  background: #98a39d;
  border-radius: 50%;
  height: 0.55rem;
  width: 0.55rem;
}

.session-status {
  align-items: center;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid #dbe4de;
  border-radius: 1rem;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  max-width: 38rem;
  padding: 1rem 1.15rem;
}

.session-status__indicator {
  color: var(--normal);
  font-size: 0.9rem;
  font-weight: 700;
  text-align: right;
}

.landing-paths {
  border-top: 1px solid #dbe4de;
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(3, 1fr);
  padding-top: 2rem;
}

.landing-paths article {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 1rem;
}

.landing-paths__number {
  color: var(--normal);
  font-size: 0.78rem;
  font-weight: 800;
  grid-row: 1 / 3;
  letter-spacing: 0.1em;
  padding-top: 0.35rem;
}

.landing-paths h2 {
  font-size: 1.05rem;
  font-weight: 750;
  margin-bottom: 0.35rem;
}

.landing-paths p {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 0;
}

.site-footer {
  background: #e8eeea;
  border-top: 1px solid #d3ddd7;
  color: var(--muted);
  font-size: 0.85rem;
  padding: 1.25rem 0;
}

.site-footer__content {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1.25rem;
  justify-content: center;
}

.site-footer a {
  color: var(--ink);
}

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

.session-toolbar {
  align-items: center;
  backdrop-filter: blur(12px);
  background: rgba(243, 246, 244, 0.94);
  border-bottom: 1px solid rgba(203, 215, 208, 0.9);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-left: calc(var(--bs-gutter-x) * -0.5);
  margin-right: calc(var(--bs-gutter-x) * -0.5);
  padding: 0.85rem calc(var(--bs-gutter-x) * 0.5);
  position: sticky;
  top: 0;
  z-index: 1020;
}

.session-toolbar .eyebrow {
  font-size: 0.68rem;
}

.session-toolbar h1 {
  font-size: clamp(1.2rem, 3vw, 1.75rem);
}

.session-toolbar__timer {
  align-items: center;
  display: flex;
  gap: 0.85rem;
  margin-left: auto;
}

.session-toolbar__timer > div {
  display: grid;
  text-align: right;
}

.session-toolbar__timer span {
  color: var(--muted);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.session-toolbar__timer strong {
  font-size: clamp(1.25rem, 3vw, 1.8rem);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.session-expiration {
  align-items: center;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid #dbe4de;
  border-radius: 0.8rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.9rem;
  gap: 0.35rem 0.75rem;
  justify-content: space-between;
  padding: 0.8rem 1rem;
}

.session-expiration__label {
  color: var(--ink);
  font-weight: 700;
}

.eyebrow,
.timer-label,
.control-label {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.demo-badge {
  border: 1px solid #cbd7d0;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.78rem;
  padding: 0.45rem 0.8rem;
}

.landing-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

.auth-page {
  display: grid;
  gap: 2rem;
  justify-items: center;
  min-height: calc(100vh - 4.5rem);
}

.auth-brand {
  color: var(--ink);
  font-size: 1.25rem;
  font-weight: 800;
  text-decoration: none;
}

.auth-card {
  align-self: start;
  background: var(--surface);
  border: 1px solid rgba(203, 215, 208, 0.8);
  border-radius: 1.5rem;
  box-shadow: 0 1.25rem 4rem rgba(31, 52, 40, 0.08);
  max-width: 32rem;
  padding: clamp(1.5rem, 5vw, 3rem);
  width: 100%;
}

.verification-code {
  font-size: 1.8rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.35em;
  text-align: center;
}

.success-mark {
  align-items: center;
  background: #e5f4ec;
  border-radius: 50%;
  color: var(--normal);
  display: inline-flex;
  font-size: 2rem;
  font-weight: 800;
  height: 4rem;
  justify-content: center;
  margin-bottom: 1.25rem;
  width: 4rem;
}

.account-details {
  display: grid;
  grid-template-columns: auto 1fr;
  margin: 2rem 0;
}

.account-details dt,
.account-details dd {
  border-bottom: 1px solid #e6ece8;
  margin: 0;
  padding: 0.75rem 0;
}

.session-dashboard {
  max-width: 38rem;
}

.session-list {
  display: grid;
  gap: 0.75rem;
}

.session-list__item {
  align-items: center;
  border: 1px solid #dbe4de;
  border-radius: 0.8rem;
  color: var(--ink);
  display: flex;
  justify-content: space-between;
  padding: 0.9rem 1rem;
  text-decoration: none;
}

.session-list__item:hover {
  background: #f2f8f4;
  border-color: #afd0bd;
}

.empty-state,
.participant-placeholder {
  background: #f5f8f6;
  border: 1px dashed #cbd7d0;
  border-radius: 0.8rem;
  padding: 1rem;
}

.participant-navigation {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.participant-exit {
  border-top: 1px solid #dbe4de;
  color: var(--muted);
  margin-inline: auto;
  max-width: 32rem;
  padding-top: 1rem;
}

.participant-exit summary {
  cursor: pointer;
  font-size: 0.85rem;
  list-style-position: inside;
}

.participant-page {
  padding-bottom: clamp(2rem, 6vw, 4rem);
}

.participant-header {
  margin-bottom: clamp(1.5rem, 4vw, 3rem);
}

.participant-header__session,
.participant-header__identity {
  display: grid;
}

.participant-header__session {
  margin-left: auto;
  text-align: right;
}

.participant-header__identity {
  border-left: 1px solid #cbd7d0;
  min-width: 8rem;
  padding-left: 1rem;
}

.participant-header__session span,
.participant-header__identity span {
  color: var(--muted);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.participant-header__identity strong {
  font-size: 0.95rem;
  max-width: 16rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.participant-content {
  margin-inline: auto;
  max-width: 70rem;
}

.participant-session-note {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.participant-timer-card {
  display: grid;
  justify-items: center;
  margin-inline: auto;
  max-width: 35rem;
  padding: clamp(0.5rem, 2vw, 1rem);
}

.session-code {
  color: var(--normal);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
}

.president-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.president-grid--single .intervention-card {
  margin-inline: auto;
  max-width: 48rem;
  width: 100%;
}

.meeting-clock {
  align-content: center;
  background: var(--surface);
  border: 1px solid #dbe4de;
  border-radius: 1.25rem;
  display: grid;
  justify-items: center;
  min-height: 18rem;
  padding: 2rem;
  text-align: center;
}

.meeting-clock strong {
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.06em;
  line-height: 1;
  margin: 1rem 0 1.5rem;
}

.meeting-actions {
  display: flex;
  gap: 0.75rem;
}

.meeting-actions form {
  margin: 0;
}

.timer--compact {
  max-width: 20rem;
}

.timer--compact .timer-readout__value {
  font-size: clamp(3.63rem, 8.47vw, 6.05rem);
}

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

.duration-form {
  align-items: end;
  display: grid;
  gap: 0.75rem;
  grid-template-columns: 1fr auto 1fr auto;
  width: 100%;
}

.duration-form label {
  color: var(--muted);
  font-size: 0.8rem;
  text-align: left;
}

.duration-separator {
  align-self: center;
  color: var(--ink);
  font-size: 2rem;
  font-weight: 700;
  padding-top: 1.25rem;
}

@media (max-width: 575.98px) {
  .duration-form {
    grid-template-columns: 1fr auto 1fr;
  }

  .duration-form > button {
    grid-column: 1 / -1;
  }
}

@media (max-width: 767.98px) {
  .president-grid {
    grid-template-columns: 1fr;
  }
}

.account-details dd {
  overflow-wrap: anywhere;
  padding-left: 1rem;
  text-align: right;
}

.timer-layout {
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 1.5fr) minmax(17rem, 0.8fr);
}

.timer-stage,
.timer-controls {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(203, 215, 208, 0.8);
  border-radius: 1.5rem;
  box-shadow: 0 1.25rem 4rem rgba(31, 52, 40, 0.08);
}

.timer-stage {
  display: grid;
  justify-items: center;
  padding: clamp(1.25rem, 4vw, 3rem);
}

.timer-label {
  margin-bottom: 1rem;
}

.timer {
  aspect-ratio: 1;
  display: grid;
  max-width: 32rem;
  place-items: center;
  position: relative;
  width: 100%;
}

.timer-ring,
.timer-readout {
  grid-area: 1 / 1;
}

.timer-ring {
  height: 100%;
  overflow: visible;
  transform: rotate(-90deg);
  width: 100%;
}

.timer-ring circle {
  fill: none;
  stroke-linecap: round;
  stroke-width: 14;
}

.timer-ring__track {
  stroke: var(--track);
}

.timer-ring__progress {
  stroke: var(--normal);
  stroke-dasharray: 100;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 180ms linear, stroke 180ms ease;
}

.timer[data-phase="unassigned"] .timer-ring__progress {
  opacity: 0;
}

.timer[data-phase="warning"] .timer-ring__progress,
.timer[data-phase="exceeded"] .timer-ring__progress,
.timer[data-phase="exceeded"] .timer-readout__value {
  animation: timer-alert 1s steps(2, start) infinite;
}

.timer[data-phase="exceeded"] .timer-ring__progress {
  stroke: var(--danger);
}

.timer[data-phase="exceeded"] .timer-readout__value,
.timer[data-phase="exceeded"] .timer-readout__state {
  color: var(--danger);
}

.timer-readout {
  display: grid;
  justify-items: center;
  text-align: center;
}

.timer-readout__mode,
.timer-readout__state {
  color: var(--muted);
  font-size: clamp(0.78rem, 2vw, 0.95rem);
  font-weight: 600;
}

.timer-readout__mode {
  font-size: clamp(0.95rem, 2.5vw, 1.2rem);
  font-variant-numeric: tabular-nums;
  left: 50%;
  position: absolute;
  top: 10%;
  transform: translateX(-50%);
}

.timer-readout__value {
  font-variant-numeric: tabular-nums;
  font-size: clamp(3.6rem, 12vw, 7rem);
  letter-spacing: -0.06em;
  line-height: 1;
  margin: 0.35rem 0 0.55rem;
}

.timer-controls {
  align-content: start;
  display: grid;
  gap: 2rem;
  padding: clamp(1.25rem, 3vw, 2rem);
}

.duration-fields {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr 1fr;
}

.duration-fields label > span {
  color: var(--muted);
  display: block;
  font-size: 0.8rem;
  margin-bottom: 0.4rem;
}

.number-control {
  border: 1px solid #cbd7d0;
  border-radius: 0.75rem;
  display: grid;
  grid-template-rows: 2.1rem minmax(3rem, auto) 2.1rem;
  overflow: hidden;
}

.number-control button,
.number-control input {
  background: var(--surface);
  border: 0;
  min-height: 2.75rem;
  text-align: center;
}

.number-control button {
  color: var(--normal);
  font-size: 1.25rem;
  font-weight: 700;
}

.number-control button:hover {
  background: #eef5f1;
}

.number-control input {
  appearance: textfield;
  border-bottom: 1px solid #e1e7e3;
  border-top: 1px solid #e1e7e3;
  font-size: 1.35rem;
  font-variant-numeric: tabular-nums;
  min-width: 0;
  width: 100%;
}

.number-control input::-webkit-inner-spin-button {
  appearance: none;
}

.demo-note {
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.5;
}

@keyframes timer-alert {
  50% {
    opacity: 0.25;
  }
}

@media (max-width: 767.98px) {
  .landing-hero {
    min-height: auto;
    padding-top: 2rem;
  }

  .landing-hero::before {
    background-position: 58% center;
    opacity: 0.42;
  }

  .landing-copy h1 {
    max-width: 12ch;
  }

  .landing-paths {
    grid-template-columns: 1fr;
  }

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

  .app-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .session-toolbar {
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 1rem !important;
  }

  .session-toolbar__timer {
    order: 3;
    width: 100%;
  }

  .session-toolbar__timer > div {
    text-align: left;
  }

  .participant-header {
    flex-wrap: nowrap;
  }

  .participant-header__session {
    margin-left: 0;
  }

  .participant-header__identity {
    margin-left: auto;
    min-width: 0;
  }

  .participant-header .auth-brand {
    display: none;
  }

  .session-toolbar .btn {
    flex: 0 0 auto;
  }
}

@media (max-width: 575.98px) {
  .landing-primary-actions .btn {
    width: 100%;
  }

  .session-status {
    align-items: flex-start;
    flex-direction: column;
  }

  .session-status__indicator {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  .timer[data-phase="warning"] .timer-ring__progress,
  .timer[data-phase="exceeded"] .timer-ring__progress,
  .timer[data-phase="exceeded"] .timer-readout__value {
    animation-duration: 2s;
  }
}