*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary:   #1a6fcf;
  --primary-h: #155bb5;
  --bg:        #0f1117;
  --surface:   #1c1f26;
  --border:    #2e3340;
  --text:      #e4e6ed;
  --muted:     #8b92a5;
  --error:     #e05252;
  --success:   #3dba6f;
}

body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
       background: var(--bg); color: var(--text); min-height: 100vh; }

/* ── Login ────────────────────────────────────────────────────────────────── */

.login-page {
  display: flex; align-items: center; justify-content: center;
}

.login-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 40px 36px; width: 100%; max-width: 400px;
  box-shadow: 0 8px 32px rgba(0,0,0,.4);
}

.logo { text-align: center; margin-bottom: 32px; }
.logo-r4w { display: block; font-size: 1.6rem; font-weight: 700; color: var(--primary); }
.logo-sub { display: block; font-size: .8rem; color: var(--muted); margin-top: 4px; }

.section-label {
  font-size: .72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .06em; color: var(--primary); margin-bottom: 12px;
  padding-bottom: 6px; border-bottom: 1px solid var(--border);
}

.field-group { margin-bottom: 18px; }
.field-group label { display: block; font-size: .8rem; color: var(--muted);
                     margin-bottom: 6px; font-weight: 500; }
.field-group input {
  width: 100%; padding: 10px 13px; background: var(--bg);
  border: 1px solid var(--border); border-radius: 7px; color: var(--text);
  font-size: .95rem; outline: none; transition: border-color .2s;
}
.field-group input:focus { border-color: var(--primary); }

button[type="submit"], #connectBtn {
  width: 100%; padding: 12px; background: var(--primary); color: #fff;
  border: none; border-radius: 7px; font-size: 1rem; font-weight: 600;
  cursor: pointer; margin-top: 8px; transition: background .2s;
}
button[type="submit"]:hover, #connectBtn:hover { background: var(--primary-h); }
button:disabled { opacity: .5; cursor: not-allowed; }

.status-msg { margin-top: 14px; font-size: .85rem; text-align: center; min-height: 20px; }
.status-msg.info  { color: var(--primary); }
.status-msg.error { color: var(--error); }

/* ── Session ──────────────────────────────────────────────────────────────── */

.session-page { display: flex; flex-direction: column; height: 100vh; overflow: hidden; }

.toolbar {
  display: flex; align-items: center; gap: 12px; padding: 8px 16px;
  background: var(--surface); border-bottom: 1px solid var(--border);
  z-index: 100; transition: opacity .3s, transform .3s;
  flex-shrink: 0;
}
.toolbar.hidden { opacity: 0; transform: translateY(-100%); pointer-events: none; }

.toolbar-title { font-weight: 700; color: var(--primary); font-size: .95rem; }
.toolbar-actions { display: flex; gap: 8px; margin-left: auto; }
.toolbar-actions button {
  padding: 6px 12px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text); font-size: .8rem; cursor: pointer;
  transition: background .15s;
}
.toolbar-actions button:hover { background: var(--border); }

.conn-status {
  font-size: .78rem; padding: 4px 10px; border-radius: 20px; font-weight: 600;
}
.conn-status.connecting { background: #2a3040; color: var(--muted); }
.conn-status.connected  { background: #1a3a28; color: var(--success); }
.conn-status.error      { background: #3a1a1a; color: var(--error); }

.canvas-wrapper {
  flex: 1; position: relative; overflow: hidden; background: #000;
  display: flex; align-items: center; justify-content: center;
}

#remoteScreen {
  max-width: 100%; max-height: 100%; display: block;
  object-fit: contain; cursor: default; outline: none;
}

.overlay {
  position: absolute; inset: 0; background: rgba(0,0,0,.75);
  display: flex; align-items: center; justify-content: center;
}
.overlay-msg {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 20px 32px; font-size: 1rem; color: var(--muted);
}