:root {
  color-scheme: light;
  --ink: #18333b;
  --muted: #60747a;
  --paper: #fffdfa;
  --canvas: #eef5f1;
  --line: #d9e5df;
  --teal: #087f78;
  --teal-dark: #075c5d;
  --coral: #e76f51;
  --sun: #f2b84b;
  --shadow: 0 18px 45px rgba(24, 51, 59, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Trebuchet MS", "Gill Sans", sans-serif;
  background: var(--canvas);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.45;
  background-image: linear-gradient(135deg, rgba(8, 127, 120, 0.05) 25%, transparent 25%), linear-gradient(315deg, rgba(231, 111, 81, 0.04) 25%, transparent 25%);
  background-size: 34px 34px;
}

#app {
  padding: 34px 24px 60px;
  position: relative;
}

.shell {
  max-width: 1180px;
  margin: 0 auto;
}

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

h1,
h2 {
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  line-height: 0.98;
  margin-bottom: 14px;
}

h2 {
  font-size: 2rem;
  margin-bottom: 8px;
}

h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.hero-card {
  min-height: 330px;
  padding: 42px clamp(28px, 7vw, 92px);
  display: flex;
  gap: 32px;
  align-items: center;
  color: #f8fffc;
  background: var(--teal-dark);
  box-shadow: var(--shadow);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
}

.hero-card::after {
  content: "";
  width: 280px;
  height: 280px;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 50%;
  position: absolute;
  right: -60px;
  bottom: -130px;
  box-shadow: 0 0 0 30px rgba(255, 255, 255, .05), 0 0 0 60px rgba(255, 255, 255, .04);
}

.logo {
  width: 96px;
  height: 96px;
  flex: 0 0 auto;
  filter: saturate(.8) brightness(1.2);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: .16em;
  font-weight: 700;
  color: var(--coral);
  font-size: .72rem;
  margin: 0 0 9px;
}

.hero-card .eyebrow {
  color: #f8c66c;
}

.hero-text {
  color: #cfe2dc;
  max-width: 560px;
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: 0;
}

.login-card,
.topbar,
.summary-card,
.panel,
.info-card,
.demo-card {
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  border-radius: 8px;
}

.login-card {
  max-width: 760px;
  margin: 18px auto 0;
  padding: clamp(22px, 5vw, 46px);
}

.login-card>h2 {
  font-size: 2.25rem;
  margin: 18px 0 4px;
}

.lang-switcher,
.role-row,
.tabs,
.header-actions,
.actions-row,
.chat-input-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.role-row {
  margin: 22px 0;
}

.role-btn,
.chip,
.tab,
.primary-btn,
.ghost-btn,
.toggle-btn,
.inline-btn {
  border: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}

.role-btn:hover,
.primary-btn:hover,
.ghost-btn:hover,
.tab:hover,
.chip:hover {
  transform: translateY(-1px);
}

.role-btn,
.primary-btn {
  background: var(--teal);
  color: #fff;
  padding: 12px 16px;
  border-radius: 5px;
}

.role-btn {
  flex: 1 1 180px;
  text-align: left;
}

.ghost-btn,
.chip,
.tab {
  background: #e7f1ed;
  color: var(--teal-dark);
  padding: 11px 14px;
  border-radius: 5px;
}

.chip.active,
.tab.active {
  background: var(--teal-dark);
  color: #fff;
}

.demo-card {
  padding: 18px;
  margin-top: 24px;
  background: #f3f7f3;
  box-shadow: none;
}

.demo-card h3 {
  color: var(--teal-dark);
}

.demo-card p {
  color: var(--muted);
  font-size: .87rem;
  margin-bottom: 5px;
}

.form-section {
  background: #f5f8f5;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 20px;
}

.helper-text,
.mode-switch-text {
  color: var(--muted);
  font-size: .92rem;
}

.auth-toggle-row {
  display: flex;
  gap: 4px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 18px;
}

.toggle-btn {
  background: transparent;
  color: var(--muted);
  padding: 8px 12px;
  border-bottom: 2px solid transparent;
}

.toggle-btn.active {
  color: var(--teal-dark);
  border-color: var(--coral);
}

.password-field {
  display: flex;
  gap: 8px;
  align-items: center;
}

.inline-btn {
  background: #e7f1ed;
  color: var(--teal-dark);
  padding: 10px 12px;
  border-radius: 4px;
  white-space: nowrap;
}

.mode-switch-text {
  text-align: center;
  margin: 16px 0 0;
}

.success-note {
  background: #e5f3e8;
  color: #26724d;
  padding: 11px 13px;
  border-radius: 5px;
  font-weight: 700;
  margin-bottom: 10px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 21px 24px;
  margin-bottom: 18px;
}

.topbar h2 {
  margin-bottom: 0;
}

.header-actions {
  justify-content: flex-end;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.summary-card {
  padding: 20px;
  min-height: 138px;
  position: relative;
  overflow: hidden;
}

.summary-card::before {
  content: "";
  position: absolute;
  width: 7px;
  inset: 0 auto 0 0;
  background: var(--coral);
}

.summary-card:nth-child(2)::before {
  background: var(--teal);
}

.summary-card:nth-child(3)::before {
  background: var(--sun);
}

.summary-card h3 {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .72rem;
}

.summary-card p {
  line-height: 1.45;
}

.tabs {
  overflow-x: auto;
  flex-wrap: nowrap;
  padding-bottom: 3px;
  margin-bottom: 16px;
  scrollbar-width: thin;
}

.tab {
  white-space: nowrap;
}

.panel {
  min-height: 320px;
  padding: 24px;
}

.stacked-form,
.card-stack,
.chat-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

label {
  display: block;
  color: var(--muted);
  font-size: .86rem;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  margin-top: 6px;
  padding: 12px 13px;
  border-radius: 4px;
  border: 1px solid #cbdad4;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(231, 111, 81, .2);
  border-color: var(--coral);
}

.risk {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.risk.critical {
  color: #b42318;
}

.risk.high {
  color: #b45f08;
}

.risk.moderate {
  color: #8b6b00;
}

.risk.low {
  color: var(--teal);
}

.info-card {
  padding: 19px;
  box-shadow: none;
}

.info-card.selected {
  border: 2px solid var(--teal);
}

.bubble {
  padding: 11px 14px;
  border-radius: 6px;
  max-width: 80%;
  line-height: 1.45;
}

.bubble.mine {
  background: #dcefee;
  align-self: flex-end;
}

.bubble.their {
  background: #f9e5de;
  align-self: flex-start;
}

.bubble span {
  display: block;
  font-size: .76rem;
  color: var(--muted);
  margin-top: 5px;
}

@media (max-width: 700px) {
  #app {
    padding: 16px 12px 40px;
  }

  .hero-card {
    min-height: 0;
    padding: 30px 24px;
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .logo {
    width: 68px;
    height: 68px;
  }

  h1 {
    font-size: 3rem;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
    padding: 18px;
  }

  .header-actions {
    justify-content: flex-start;
  }

  .summary-grid,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .panel {
    padding: 16px;
  }

  .chat-input-row input {
    flex: 1 1 100%;
  }
}