:root {
  --bg: #0e141b;
  --panel: rgba(12, 21, 31, 0.92);
  --panel-alt: rgba(18, 30, 43, 0.92);
  --line: rgba(126, 156, 184, 0.22);
  --text: #e4edf7;
  --muted: #8ea3b8;
  --accent: #64d2ff;
  --danger: #ff6b6b;
  --success: #4ade80;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(100, 210, 255, 0.18), transparent 28%),
    radial-gradient(circle at bottom right, rgba(74, 222, 128, 0.12), transparent 24%),
    linear-gradient(135deg, #071018 0%, #0f1722 55%, #121c29 100%);
  color: var(--text);
}

body {
  min-height: 100vh;
}

.login-page,
.terminal-page {
  padding: 24px;
}

.auth-shell {
  min-height: calc(100vh - 48px);
  display: grid;
  place-items: center;
}

.auth-card,
.connect-panel,
.terminal-panel {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.auth-card {
  width: min(100%, 420px);
  border-radius: 24px;
  padding: 32px;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: var(--accent);
}

h1, h2 {
  margin: 0;
  font-family: "IBM Plex Mono", "Consolas", monospace;
  font-weight: 600;
}

.subtitle {
  color: var(--muted);
  margin: 12px 0 0;
  line-height: 1.5;
}

.alert {
  margin-top: 18px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 107, 107, 0.12);
  color: #ffd4d4;
  border: 1px solid rgba(255, 107, 107, 0.25);
}

.auth-form,
.ssh-form {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

label {
  display: grid;
  gap: 8px;
}

label span {
  font-size: 0.95rem;
  color: var(--muted);
}

input,
textarea,
button {
  font: inherit;
}

input,
textarea {
  width: 100%;
  border-radius: 14px;
  border: 1px solid rgba(126, 156, 184, 0.25);
  background: rgba(4, 11, 18, 0.82);
  color: var(--text);
  padding: 12px 14px;
}

textarea {
  resize: vertical;
  font-family: "IBM Plex Mono", "Consolas", monospace;
}

button {
  border: 0;
  border-radius: 14px;
  padding: 12px 18px;
  cursor: pointer;
  background: linear-gradient(135deg, #64d2ff 0%, #87f2ae 100%);
  color: #051018;
  font-weight: 700;
}

.secondary-button {
  background: rgba(126, 156, 184, 0.16);
  color: var(--text);
  border: 1px solid rgba(126, 156, 184, 0.25);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-chip {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(100, 210, 255, 0.12);
  color: var(--accent);
  border: 1px solid rgba(100, 210, 255, 0.24);
}

.workspace {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 20px;
  min-height: calc(100vh - 144px);
}

.connect-panel {
  border-radius: 24px;
  padding: 24px;
}

.terminal-panel {
  border-radius: 24px;
  padding: 16px;
  overflow: hidden;
  background: var(--panel-alt);
}

.button-row {
  display: flex;
  gap: 12px;
}

.status-line {
  margin: 0;
  min-height: 24px;
  color: var(--muted);
}

.status-line.error {
  color: var(--danger);
}

.status-line.ok {
  color: var(--success);
}

#terminal {
  width: 100%;
  height: 100%;
  min-height: 540px;
}

code {
  font-family: "IBM Plex Mono", "Consolas", monospace;
}

@media (max-width: 980px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  #terminal {
    min-height: 420px;
  }
}