:root {
  --bg: #1d1d1f; --bg2: #2d2d2f; --border: #424245;
  --fg: #f5f5f7; --muted: #86868b; --accent: #0a84ff; --error: #ff453a;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; font-family: system-ui, -apple-system, sans-serif; color: var(--fg); background: var(--bg); }

.login-body { display: grid; place-items: center; }
.login-card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: 12px;
  padding: 2rem; width: 320px; display: flex; flex-direction: column; gap: 1rem;
}
.login-card h1 { font-size: 1.5rem; text-align: center; }
.login-card label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.85rem; color: var(--muted); }
.login-card input {
  padding: 0.5rem; border-radius: 6px; border: 1px solid var(--border);
  background: var(--bg); color: var(--fg); font-size: 1rem;
}
.login-card button {
  padding: 0.6rem; border: none; border-radius: 6px; background: var(--accent);
  color: white; font-size: 0.95rem; cursor: pointer;
}
.error { color: var(--error); font-size: 0.85rem; }

.app-body { display: flex; flex-direction: column; height: 100%; }
.app-header {
  display: flex; align-items: center; gap: 0.75rem; padding: 0.5rem 1rem;
  background: var(--bg2); border-bottom: 1px solid var(--border); font-size: 0.9rem;
}
.app-header .brand { font-weight: 600; }
.app-header select, .app-header button {
  background: var(--bg); color: var(--fg); border: 1px solid var(--border);
  border-radius: 4px; padding: 0.35rem 0.6rem; font: inherit;
}
.app-header .toolbar { display: flex; gap: 0.25rem; padding-left: 0.75rem; border-left: 1px solid var(--border); }
.app-header .toolbar button:disabled { opacity: 0.5; cursor: not-allowed; }
.app-header .toolbar .sep { width: 1px; background: var(--border); margin: 0 0.25rem; }
.app-header .spacer { flex: 1; }
.app-header .user { color: var(--muted); }

.app-main { flex: 1; display: flex; min-height: 0; }

body[data-terminal-position="bottom"] .app-main {
  flex-direction: column;
}
body[data-terminal-position="bottom"] #staging-frame {
  flex: 1 1 60%; min-height: 0;
}
body[data-terminal-position="bottom"] #terminal-panel {
  flex: 0 0 40%; min-height: 200px;
  border-top: 1px solid var(--border);
}

body[data-terminal-position="right"] .app-main {
  flex-direction: row;
}
body[data-terminal-position="right"] #staging-frame {
  flex: 1.5 1 0; min-width: 0;
}
body[data-terminal-position="right"] #terminal-panel {
  flex: 1 1 0; min-width: 300px; max-width: 50%;
  border-left: 1px solid var(--border);
}

#staging-frame { border: 0; background: #fff; }

#terminal-panel {
  display: flex; flex-direction: column; background: #000; color: #d4d4d4;
}
.terminal-toolbar {
  display: flex; align-items: center; gap: 0.5rem; padding: 0.35rem 0.75rem;
  background: var(--bg2); border-bottom: 1px solid var(--border); font-size: 0.8rem;
}
.terminal-toolbar #terminal-status { color: #4ade80; margin-right: auto; }
.terminal-toolbar button {
  background: var(--bg); color: var(--fg); border: 1px solid var(--border);
  border-radius: 4px; padding: 0.25rem 0.6rem; font: inherit; cursor: pointer;
}
.terminal-toolbar button:hover { border-color: var(--accent); }

#terminal-host { flex: 1 1 auto; min-height: 0; padding: 0.25rem; }
#terminal-host .xterm { height: 100%; }

/* ===== Modals ===== */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  display: grid; place-items: center; z-index: 100;
}
.modal {
  background: var(--bg2); color: var(--fg);
  border: 1px solid var(--border); border-radius: 12px;
  padding: 1.5rem; width: 420px; max-width: 90vw;
  display: flex; flex-direction: column; gap: 1rem;
}
.modal-wide { width: 820px; max-width: 95vw; }
.modal h2 { font-size: 1.2rem; }
.modal-desc { color: var(--muted); font-size: 0.85rem; line-height: 1.5; }
.modal label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.85rem; color: var(--muted); }
.modal label.checkbox { flex-direction: row; align-items: center; gap: 0.5rem; color: var(--fg); }
.modal input[type="text"] {
  background: var(--bg); color: var(--fg); border: 1px solid var(--border);
  border-radius: 6px; padding: 0.5rem; font: inherit;
}
.modal-actions {
  display: flex; justify-content: flex-end; gap: 0.5rem; margin-top: 0.5rem;
}
.btn-primary, .btn-secondary, .btn-danger {
  padding: 0.4rem 0.9rem; border-radius: 6px; border: 1px solid var(--border);
  background: var(--bg); color: var(--fg); font: inherit; cursor: pointer;
}
.btn-primary { background: var(--accent); border-color: var(--accent); color: white; }
.btn-danger  { background: var(--error); border-color: var(--error); color: white; }
.btn-primary:hover, .btn-danger:hover { filter: brightness(1.1); }

.history-table {
  width: 100%; border-collapse: collapse; font-size: 0.85rem;
}
.history-table th, .history-table td {
  padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--border); text-align: left;
}
.history-table th { color: var(--muted); font-weight: 500; }
.history-table button {
  background: var(--bg); color: var(--fg); border: 1px solid var(--border);
  border-radius: 4px; padding: 0.2rem 0.5rem; font: inherit; cursor: pointer;
  margin-right: 0.25rem;
}
.history-table button:hover { border-color: var(--accent); }
.history-table .row-type { text-transform: uppercase; font-size: 0.7rem; color: var(--muted); letter-spacing: 0.05em; }