:root {
  /* Industrial Palette */
  --bg-concrete: #F0F0F0;
  --graphite: #2A2A2A;
  --amber: #FFB300;
  --go-green: #00A86B;
  --steel-blue: #4682B4;
  --alert-red: #D32F2F;
  --card-bg: #FFFFFF;
  --border: #D1D5DB;
  --text-dark: #1F2937;
  --text-light: #F9FAFB;
}

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

body {
  font-family: 'Inter', 'Noto Sans Devanagari', sans-serif;
  background-color: var(--bg-concrete);
  color: var(--text-dark);
  line-height: 1.5;
}

h1, h2, h3, h4 {
  font-family: 'Barlow Condensed', sans-serif;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.container {
  max-width: 480px;
  margin: 0 auto;
  padding: 1rem;
}

.container-wide {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1rem;
}

.card {
  background: var(--card-bg);
  border-radius: 4px; /* Industrial sharper corners */
  padding: 1.5rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  margin-bottom: 1rem;
  border: 1px solid var(--border);
}

.header-industrial {
  background: var(--graphite);
  color: var(--text-light);
  padding: 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.header-industrial h2 {
  font-size: 1.75rem;
  margin-bottom: 0.25rem;
  color: var(--text-light);
}

.header-industrial p {
  font-size: 0.875rem;
  opacity: 0.9;
  font-family: 'Inter', sans-serif;
}

.hazard-stripe {
  height: 8px;
  width: 100%;
  background: repeating-linear-gradient(
    45deg,
    var(--amber),
    var(--amber) 10px,
    var(--graphite) 10px,
    var(--graphite) 20px
  );
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

input, select {
  width: 100%;
  padding: 0.8rem;
  border: 2px solid var(--border);
  border-radius: 4px;
  font-size: 1rem;
  background-color: #FAFAFA;
  transition: border-color 0.2s;
  font-family: 'Inter', sans-serif;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--amber);
}

/* Industrial Push Button Styles */
.btn {
  display: inline-block;
  width: 100%;
  padding: 1rem;
  border: none;
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  text-align: center;
  font-family: 'Barlow Condensed', sans-serif;
  text-transform: uppercase;
  color: var(--text-light);
  border-radius: 6px;
  box-shadow: 
    inset 0 4px 0 rgba(255,255,255,0.3), /* Bevel top */
    inset 0 -4px 0 rgba(0,0,0,0.3), /* Bevel bottom */
    0 4px 6px rgba(0,0,0,0.4); /* Drop shadow */
  transition: all 0.1s ease;
  position: relative;
  text-shadow: 0 1px 2px rgba(0,0,0,0.4);
}

.btn:active:not(:disabled) {
  transform: translateY(4px);
  box-shadow: 
    inset 0 2px 0 rgba(255,255,255,0.2), 
    inset 0 -2px 0 rgba(0,0,0,0.2), 
    0 0 2px rgba(0,0,0,0.4);
}

.btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none !important;
}

.btn-scan {
  background-color: var(--graphite);
  margin-bottom: 1rem;
}

.btn-primary {
  background-color: var(--amber);
  color: var(--graphite);
}

.btn-secondary {
  background-color: var(--graphite);
}

.btn-success {
  background-color: var(--go-green);
}

.btn-in {
  background-color: var(--go-green);
}

.btn-out {
  background-color: var(--steel-blue);
}

.btn-out-empty {
  background-color: var(--graphite);
}

.btn small {
  display: block;
  font-size: 0.8rem;
  font-family: 'Noto Sans Devanagari', sans-serif;
  font-weight: 400;
  text-transform: none;
  margin-top: 0.25rem;
  text-shadow: none;
}

/* Status Strip */
.status-strip {
  background-color: var(--graphite);
  color: var(--amber);
  padding: 0.75rem;
  border-radius: 4px;
  text-align: center;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 2px solid var(--amber);
  margin-bottom: 1rem;
}
.status-strip.unknown {
  color: var(--text-light);
  border-color: var(--border);
}
.status-strip.highlight {
  animation: pulse 1s infinite alternate;
}
@keyframes pulse {
  from { box-shadow: 0 0 5px var(--amber); }
  to { box-shadow: 0 0 15px var(--amber); }
}


.action-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-top: 15px;
}

.error-message {
  color: var(--text-light);
  text-align: center;
  padding: 1rem;
  background: var(--alert-red);
  border-radius: 4px;
  margin-bottom: 1rem;
  font-weight: 700;
}

.success-message {
  color: var(--text-light);
  text-align: center;
  padding: 1rem;
  background: var(--go-green);
  border-radius: 4px;
  margin-bottom: 1rem;
  display: none;
  font-weight: 700;
}

#camera-container {
  display: none;
  width: 100%;
  margin-bottom: 1rem;
  position: relative;
  overflow: hidden;
  border: 4px solid var(--graphite);
  border-radius: 4px;
}

.camera-guide {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 85%;
  height: 25%;
  border: 3px solid var(--amber);
  border-radius: 4px;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.6);
  pointer-events: none;
  z-index: 10;
}

#video-preview {
  width: 100%;
  display: block;
}

#capture-btn {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--amber);
  color: var(--graphite);
  padding: 0.5rem 1.5rem;
  width: auto;
  font-size: 1.1rem;
}

/* Offline Banner */
.offline-banner {
  background: var(--amber);
  color: var(--graphite);
  text-align: center;
  padding: 0.5rem;
  font-size: 0.875rem;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: none;
  font-weight: 700;
  text-transform: uppercase;
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  background: white;
}
.table th {
  text-align: left;
  padding: 0.75rem;
  border-bottom: 2px solid var(--graphite);
  font-family: 'Barlow Condensed', sans-serif;
  text-transform: uppercase;
  font-size: 1.1rem;
  color: var(--graphite);
}
.table td {
  text-align: left;
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.tag {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  color: white;
  text-transform: uppercase;
}
.tag.green { background: var(--go-green); }
.tag.blue { background: var(--steel-blue); }
.tag.gray { background: var(--graphite); }

.overdue {
  color: var(--alert-red);
  font-weight: 700;
}

/* Language Toggle */
.lang-en .hi { display: none !important; }
.lang-hi .en { display: none !important; }

/* Overdue Row Highlight */
.overdue-row {
  background-color: rgba(211, 47, 47, 0.08) !important;
  border-left: 3px solid var(--alert-red);
}