:root {
  color-scheme: light;
  --bg: #f5f8fb;
  --surface: #ffffff;
  --surface-soft: #e9f6fb;
  --text: #231f20;
  --muted: #69747b;
  --border: #d5e8ef;
  --primary: #22a9dc;
  --primary-dark: #0b78a7;
  --accent: #ffd51e;
  --brand-red: #d71920;
  --success: #12805c;
  --warning: #ffd51e;
  --shadow: 0 16px 40px rgba(21, 91, 126, 0.16);
  font-family: Montserrat, Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(135deg, rgba(34, 169, 220, 0.18) 0 18%, transparent 18% 100%),
    linear-gradient(315deg, rgba(255, 213, 30, 0.28) 0 10%, transparent 10% 100%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 46%, #ffffff 100%);
  color: var(--text);
}

button,
input {
  font: inherit;
}

.app-shell {
  width: min(100%, 520px);
  min-height: 100vh;
  margin: 0 auto;
  padding: 24px 18px 36px;
}

.brand-hero {
  overflow: hidden;
  margin-bottom: 16px;
  border: 1px solid #cfe8f2;
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.brand-poster {
  display: block;
  width: 100%;
  height: auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.brand-title {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-logo {
  width: 74px;
  height: auto;
  flex: 0 0 74px;
}

.event-name,
.muted {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

h1,
h2 {
  margin: 2px 0 0;
  letter-spacing: 0;
  line-height: 1.12;
  font-weight: 900;
}

h1 {
  color: var(--primary);
  font-size: 1.8rem;
  text-transform: uppercase;
}

h2 {
  font-size: 1.28rem;
}

.panel,
.status-card,
.current-session,
.programme-block,
.vendor-list,
.scanner {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.panel {
  padding: 20px;
}

.stack {
  display: grid;
  gap: 12px;
}

.field-label {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 650;
}

.text-input {
  width: 100%;
  height: 58px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 16px;
  background: #fff;
  color: var(--text);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0;
  outline: none;
}

.text-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(34, 169, 220, 0.16);
}

.primary-button,
.secondary-button,
.icon-button,
.tab {
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 750;
}

.primary-button,
.secondary-button {
  min-height: 50px;
  padding: 0 16px;
}

.primary-button {
  background: linear-gradient(135deg, var(--primary) 0%, #128fc3 100%);
  color: #fff;
  text-transform: uppercase;
}

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

.secondary-button {
  background: #fff5b6;
  color: var(--primary-dark);
  text-transform: uppercase;
}

.icon-button {
  width: 42px;
  height: 42px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--brand-red);
  font-size: 1.2rem;
}

.notice {
  margin-bottom: 14px;
  padding: 12px 14px;
  border-radius: 8px;
  background: #fff7d1;
  border: 1px solid var(--accent);
  color: #6a5200;
  font-size: 0.94rem;
  line-height: 1.45;
}

.dashboard {
  display: grid;
  gap: 14px;
}

.home-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.nav-tile {
  display: grid;
  place-items: center;
  gap: 6px;
  min-height: 72px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
  color: var(--primary-dark);
  box-shadow: 0 10px 24px rgba(21, 91, 126, 0.1);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 850;
  line-height: 1.2;
  text-transform: uppercase;
}

.nav-tile.active {
  border-color: var(--primary);
  background: linear-gradient(135deg, #e8f8ff 0%, #ffffff 100%);
  color: var(--text);
}

.nav-icon {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 900;
}

.nav-tile.active .nav-icon {
  background: var(--accent);
  color: var(--primary-dark);
}

.view-panel {
  display: grid;
  gap: 14px;
}

.current-session,
.programme-block {
  padding: 16px;
}

.current-session {
  border-color: #9bd9ee;
  background:
    linear-gradient(135deg, rgba(34, 169, 220, 0.14) 0 44%, transparent 44% 100%),
    #ffffff;
}

.current-session.is-now {
  border-color: var(--primary);
}

.section-label {
  margin: 0 0 4px;
  color: var(--primary-dark);
  font-size: 0.78rem;
  font-weight: 850;
  line-height: 1.3;
  text-transform: uppercase;
}

.session-meta {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
  line-height: 1.45;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.programme-list {
  display: block;
}

.timetable-stack {
  display: grid;
  gap: 18px;
}

.timetable-card {
  overflow: hidden;
  border: 1px solid #9bd9ee;
  border-radius: 8px;
  background: #ffffff;
}

.timetable-title-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  align-items: center;
  padding: 14px 16px;
  background: linear-gradient(90deg, #1db6cf 0%, #22a9dc 54%, #e8f8ff 100%);
  color: #ffffff;
  font-size: 1.22rem;
  font-weight: 900;
  text-transform: uppercase;
}

.timetable-scroll {
  display: none;
}

.mobile-agenda {
  display: grid;
}

.timetable {
  width: max(100%, calc(112px + (var(--venue-count) * 190px)));
  border-collapse: collapse;
  table-layout: fixed;
  color: #040735;
}

.timetable th,
.timetable td {
  border: 1px solid #b7daf0;
  vertical-align: middle;
}

.timetable thead th {
  height: 44px;
  padding: 8px;
  background: #20abc4;
  color: #ffffff;
  font-size: 0.82rem;
  font-weight: 900;
  text-align: left;
  text-transform: uppercase;
}

.timetable .time-head,
.timetable .time-cell {
  width: 112px;
}

.time-cell {
  padding: 10px 8px;
  background: #ffffff;
  color: #040735;
  font-size: 0.85rem;
  font-weight: 900;
  text-align: center;
  white-space: nowrap;
}

.session-cell {
  min-height: 76px;
  padding: 10px;
  background: #ffffff;
  text-align: center;
}

.session-cell.all-cell,
.session-cell.break-cell {
  background: #e8f3fa;
}

.session-cell.ceremony-cell {
  background: #f16672;
  color: #ffffff;
}

.session-cell.symposium-cell {
  background: #ffeb84;
}

.session-cell.current-cell {
  outline: 3px solid var(--accent);
  outline-offset: -4px;
}

.timetable-session + .timetable-session {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid rgba(4, 7, 53, 0.16);
}

.timetable-session-title {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 900;
  line-height: 1.22;
}

.break-cell .timetable-session-title,
.all-cell .timetable-session-title {
  font-size: 0.92rem;
  text-transform: uppercase;
}

.ceremony-cell .timetable-session-title {
  color: #ffffff;
  font-size: 0.95rem;
}

.timetable-description {
  margin: 6px 0 0;
  color: inherit;
  font-size: 0.68rem;
  font-weight: 650;
  line-height: 1.28;
  white-space: pre-line;
}

.timetable-description {
  text-align: left;
}

.programme-empty {
  padding: 14px 0;
}

.programme-title {
  margin: 0;
  font-size: 0.96rem;
  font-weight: 780;
  line-height: 1.3;
}

.mobile-slot {
  display: grid;
  gap: 10px;
  padding: 14px 12px;
  border-top: 1px solid #b7daf0;
  background: #ffffff;
}

.mobile-slot-time {
  display: inline-flex;
  width: fit-content;
  padding: 6px 10px;
  border-radius: 8px;
  background: #dff5fd;
  color: #040735;
  font-size: 0.82rem;
  font-weight: 900;
}

.mobile-session-list {
  display: grid;
  gap: 8px;
}

.mobile-session-card {
  min-height: 0;
  padding: 12px;
  border: 1px solid #b7daf0;
  border-radius: 8px;
  background: #ffffff;
  text-align: left;
  box-shadow: 0 8px 18px rgba(21, 91, 126, 0.08);
}

.mobile-session-venue {
  display: inline-flex;
  width: fit-content;
  margin: 0 0 7px;
  padding: 4px 7px;
  border-radius: 6px;
  background: #e8f8ff;
  color: var(--primary-dark);
  font-size: 0.68rem;
  font-weight: 900;
  line-height: 1.2;
  text-transform: uppercase;
}

.mobile-session-title {
  margin: 0;
  color: #040735;
  font-size: 0.96rem;
  font-weight: 900;
  line-height: 1.25;
}

.mobile-session-card.all-cell,
.mobile-session-card.break-cell {
  background: #edf8fc;
}

.mobile-session-card.symposium-cell {
  background: #fff0a3;
  border-color: #ffe06b;
}

.mobile-session-card.ceremony-cell {
  background: #f16672;
  border-color: #f16672;
  color: #ffffff;
}

.mobile-session-card.current-cell {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 2px var(--accent), 0 8px 18px rgba(21, 91, 126, 0.08);
}

.ceremony-cell .mobile-session-title {
  color: #ffffff;
}

.mobile-session-description {
  margin: 7px 0 0;
  color: inherit;
  font-size: 0.74rem;
  font-weight: 650;
  line-height: 1.35;
  white-space: pre-line;
}

@media (min-width: 641px) {
  .mobile-slot {
    grid-template-columns: 128px 1fr;
    align-items: start;
    gap: 14px;
    padding: 16px;
  }

  .mobile-session-list {
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  }

  .mobile-slot-time {
    justify-content: center;
    width: 100%;
  }
}

.status-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px;
}

.participant-copy {
  min-width: 0;
}

.participant-qr {
  width: 88px;
  height: 88px;
  flex: 0 0 88px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
  object-fit: contain;
  padding: 5px;
}

.progress-ring {
  display: grid;
  place-items: center;
  width: 94px;
  height: 94px;
  flex: 0 0 94px;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, #fff 0 58%, transparent 59%),
    conic-gradient(var(--primary) var(--progress, 0%), #e7eef1 0);
  color: var(--primary-dark);
}

.progress-ring span {
  font-size: 1.55rem;
  font-weight: 850;
  line-height: 1;
}

.progress-ring small {
  margin-top: -22px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
}

.eligibility {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 650;
}

.eligibility.complete {
  border-color: var(--accent);
  background: #fff8ce;
  color: #684a0b;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--warning);
}

.eligibility.complete .status-dot {
  background: var(--success);
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.list-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 4px;
  border-radius: 8px;
  background: #dceff7;
}

.tab {
  height: 42px;
  background: transparent;
  color: var(--muted);
}

.tab.active {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 6px 18px rgba(22, 42, 40, 0.08);
}

.vendor-list {
  overflow: hidden;
}

.vendor-row {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 54px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}

.vendor-row:last-child {
  border-bottom: 0;
}

.stamp-icon {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  border-radius: 50%;
  background: #e6f7fd;
  color: var(--success);
  font-size: 0.92rem;
  font-weight: 900;
}

.stamp-icon.pending {
  background: #eef2f2;
  color: var(--muted);
}

.vendor-name {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 720;
  line-height: 1.25;
}

.vendor-meta {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.scanner {
  padding: 14px;
}

#reader {
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #111;
  margin-bottom: 12px;
}

.hidden {
  display: none !important;
}

button:disabled {
  cursor: wait;
  opacity: 0.7;
}

@media (max-width: 380px) {
  .app-shell {
    padding-inline: 14px;
  }

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

  .status-card {
    align-items: center;
    gap: 10px;
  }

  .progress-ring {
    width: 72px;
    height: 72px;
    flex-basis: 72px;
  }

  .participant-qr {
    width: 72px;
    height: 72px;
    flex-basis: 72px;
  }

  .home-nav {
    grid-template-columns: repeat(2, 1fr);
  }

  .brand-logo {
    width: 62px;
    flex-basis: 62px;
  }

  h1 {
    font-size: 1.45rem;
  }
}

@media (max-width: 640px) {
  .programme-block {
    padding: 12px;
  }

  .timetable-stack {
    gap: 14px;
  }

  .timetable-title-row {
    grid-template-columns: 72px 1fr;
    gap: 10px;
    padding: 12px 14px;
    font-size: 1rem;
    line-height: 1.15;
  }

  .mobile-session-card.session-cell {
    min-height: 0;
  }

  .section-heading {
    margin-bottom: 8px;
  }

  #programmeTitle {
    font-size: 1.18rem;
  }
}