src/styles.css

:root {
  color: #d6deeb;
  background: #0b0f16;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body,
#app {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
}

button,
select {
  font: inherit;
}

button {
  min-height: 40px;
  padding: 0 15px;
  border: 0;
  border-radius: 6px;
  background: #227c70;
  color: #ffffff;
  font-weight: 750;
  cursor: pointer;
}

button:disabled {
  cursor: wait;
  opacity: 0.6;
}

#app {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 10px;
  padding: 10px;
}

.runtime-bar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  min-height: 54px;
  padding: 4px 2px 10px;
  border-bottom: 1px solid #263244;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  color: #f8fafc;
  font-size: 30px;
  line-height: 1;
  letter-spacing: 0;
}

#model-label {
  margin-top: 5px;
  color: #9eb1ca;
  font-size: 13px;
  overflow-wrap: anywhere;
}

.status-stack {
  display: flex;
  flex-wrap: wrap;
  justify-content: end;
  gap: 8px;
  max-width: 760px;
}

.status {
  min-height: 32px;
  max-width: 280px;
  padding: 6px 10px;
  border: 1px solid #344156;
  border-radius: 6px;
  background: #141b27;
  color: #cad7ea;
  font-size: 13px;
  overflow-wrap: anywhere;
}

.terminal-shell {
  min-height: 0;
  border: 1px solid #263244;
  border-radius: 8px;
  background: #10141c;
  overflow: hidden;
}

#terminal {
  width: 100%;
  height: calc(100vh - 86px);
  min-height: 420px;
  padding: 10px;
}

.xterm {
  height: 100%;
}

.xterm-viewport,
.xterm-screen {
  border-radius: 0;
}

.model-gate {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(4, 8, 14, 0.64);
  z-index: 20;
}

.model-gate.hidden {
  display: none;
}

.model-dialog {
  display: grid;
  gap: 16px;
  width: min(560px, 100%);
  padding: 22px;
  border: 1px solid #334155;
  border-radius: 8px;
  background: #f8fafc;
  color: #172033;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

.eyebrow {
  margin-bottom: 7px;
  color: #227c70;
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.model-dialog h2 {
  color: #172033;
  font-size: 24px;
  line-height: 1.15;
}

.dialog-copy {
  margin-top: 8px;
  color: #526173;
  line-height: 1.5;
}

.dialog-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

#use-test-model {
  background: #4f5f73;
}

.dialog-options {
  display: grid;
  gap: 10px;
  color: #526173;
}

label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
}

select {
  width: 100%;
  height: 40px;
  padding: 0 10px;
  border: 1px solid #b8c5d4;
  border-radius: 6px;
  background: #ffffff;
  color: #152033;
}

#gate-status {
  min-height: 22px;
  color: #526173;
  overflow-wrap: anywhere;
}

@media (max-width: 760px) {
  #app {
    padding: 8px;
  }

  .runtime-bar {
    align-items: stretch;
    flex-direction: column;
  }

  .status-stack {
    justify-content: start;
  }

  #terminal {
    height: calc(100vh - 164px);
    min-height: 360px;
    padding: 8px;
  }
}