/* ===== GLOBAL ===== */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: #f4f6f8;
  color: #222;
}

/* ===== LANDING ===== */
.landing {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.hero {
  background: linear-gradient(135deg, #1565c0, #1e88e5);
  color: white;
  padding: 60px 20px;
  text-align: center;
}

.hero h1 {
  margin-bottom: 10px;
  font-size: 2.6rem;
}

.hero p {
  font-size: 1.2rem;
  opacity: 0.95;
}

.instrument-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  padding: 40px;
  max-width: 1100px;
  margin: auto;
}

/* ===== INSTRUMENT CARD ===== */
/* Single unified definition — previously duplicated */
.instrument-card {
  background: white;
  border-radius: 12px;
  padding: 24px;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 8px 20px rgba(0,0,0,0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  margin-bottom: 24px;
}

.instrument-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.12);
}

.instrument-card span {
  display: inline-block;
  margin-top: 16px;
  color: #1565c0;
  font-weight: 600;
}

.instrument-card.disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* ===== FOOTER ===== */
footer {
  margin-top: auto;
  padding: 20px;
  text-align: center;
  font-size: 0.9rem;
  background: #eaecef;
}

footer a {
  color: #1565c0;
  text-decoration: none;
  font-weight: 600;
}

/* ===== CANVAS ===== */
canvas {
  background: white;
  border-radius: 8px;
}

/* ===== STATUS BADGE ===== */
.status-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: #e3eaf7;
  color: #1565c0;
  transition: background 0.3s, color 0.3s;
}

.status-badge.running  { background: #e8f5e9; color: #2e7d32; }
.status-badge.pumping  { background: #fff8e1; color: #f57f17; }
.status-badge.ready    { background: #e3f2fd; color: #1565c0; }
.status-badge.complete { background: #ede7f6; color: #4527a0; }
.status-badge.stopped  { background: #fce4ec; color: #b71c1c; }
.status-badge.error    { background: #fce4ec; color: #b71c1c; }

/* ===== RANGE INPUTS ===== */
input[type="range"] {
  width: 100%;
  accent-color: #1565c0;
  cursor: pointer;
}

/* ===== BUTTONS ===== */
button {
  padding: 9px 20px;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  margin-right: 8px;
  margin-top: 4px;
  transition: opacity 0.2s, transform 0.1s;
}

button:active { transform: scale(0.97); }
button:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

#pumpBtn  { background: #1565c0; color: white; }
#injectBtn { background: #2e7d32; color: white; }

/* ===== PARAM DISPLAY ===== */
.param-val {
  font-weight: 700;
  color: #1565c0;
  min-width: 42px;
  display: inline-block;
  text-align: right;
}