/* ── Reset & base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0d0d0f;
  --bg2:       #141416;
  --bg3:       #1a1a1e;
  --bg4:       #222228;
  --border:    #2a2a32;
  --accent:    #7c6ff7;
  --accent2:   #5b50d6;
  --green:     #4caf8a;
  --red:       #e05555;
  --yellow:    #d4b44a;
  --text:      #e0e0ea;
  --text2:     #9090a8;
  --text3:     #5a5a70;
  --header-h:  38px;
  --pane-hdr:  28px;
  --font:      'SF Mono', 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  overflow: hidden;
}

/* ── Screens ── */
.screen { position: fixed; inset: 0; }
.hidden { display: none !important; }

/* ── Login ── */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}

.login-box {
  width: 340px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 36px 32px;
}

.login-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}

.logo-icon {
  font-size: 22px;
  color: var(--accent);
}
.logo-text {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.04em;
}

.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-size: 11px;
  color: var(--text2);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.field input {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 9px 12px;
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s;
}
.field input:focus { border-color: var(--accent); }

.error-msg {
  background: rgba(224,85,85,0.12);
  border: 1px solid rgba(224,85,85,0.3);
  color: var(--red);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 12px;
  margin-bottom: 16px;
}

.btn {
  border: none;
  border-radius: 6px;
  padding: 9px 18px;
  font-family: var(--font);
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent2); }
.btn-full { width: 100%; }

/* ── App layout ── */
#app-screen {
  display: flex;
  width: 100%;
  height: 100%;
}

#main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  width: 100%;
}

/* ── Header bar ── */
#header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
  padding: 0 12px;
  flex-shrink: 0;
}

#header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-icon {
  font-size: 16px;
  color: var(--accent);
}

.header-label {
  font-size: 12px;
  color: var(--text2);
  letter-spacing: 0.03em;
}

#header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

#header-status {
  font-size: 11px;
  color: var(--text3);
}

/* ── Icon buttons ── */
.icon-btn {
  background: none;
  border: none;
  color: var(--text2);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 14px;
  line-height: 1;
  transition: color 0.12s, background 0.12s;
}
.icon-btn:hover { color: var(--text); background: var(--bg3); }
.icon-btn.danger:hover { color: var(--red); }

/* ── Terminal area — side by side ── */
#terminal-area {
  flex: 1;
  display: flex;
  flex-direction: row;
  overflow: hidden;
  background: var(--bg);
  min-height: 0;
}

/* ── Panes ── */
.terminal-pane {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.pane-header {
  display: flex;
  align-items: center;
  gap: 7px;
  height: var(--pane-hdr);
  padding: 0 12px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.pane-header-icon {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text3);
  flex-shrink: 0;
  transition: background 0.2s;
}
.pane-header-icon.connecting { background: var(--yellow); }
.pane-header-icon.ready      { background: var(--green); }
.pane-header-icon.exited     { background: var(--red); }

.pane-header-title {
  font-size: 11px;
  color: var(--text2);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  user-select: none;
}

.terminal-pane .xterm-container {
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* ── Pane divider (draggable) ── */
#pane-divider {
  width: 4px;
  background: var(--border);
  cursor: col-resize;
  flex-shrink: 0;
  transition: background 0.15s;
  position: relative;
}
#pane-divider:hover,
#pane-divider.dragging {
  background: var(--accent);
}

/* ── Scrollbars ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text3); }