:root {
  --bg-dark: #0f172a;
  --bg-gradient-1: #1e1b4b;
  --bg-gradient-2: #312e81;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --accent: #818cf8;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at top left, var(--bg-gradient-1), var(--bg-dark));
  background-attachment: fixed;
  color: var(--text-main);
  margin: 0;
  padding: 20px;
  min-height: 100vh;
}

/* Typography */
h1, h2, h3 {
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-top: 0;
}

h1 { font-size: 2rem; margin-bottom: 1.5rem; text-align: center; color: var(--accent); }
h2 { font-size: 1.5rem; margin-bottom: 1rem; color: var(--text-main); }
h3 { font-size: 1.1rem; margin-bottom: 0.5rem; color: var(--text-muted); }

/* Layout & Grid */
.container {
  max-width: 1200px;
  margin: 0 auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

/* Glassmorphism Cards */
.box, .trItem, .stepBox, .card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 16px;
  padding: 20px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  color: var(--text-main);
}

.box:hover, .trItem:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.45);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Inputs & Selects */
select, input[type="text"], input[type="password"], textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: white;
  font-size: 1rem;
  transition: all 0.2s;
  outline: none;
  font-family: inherit;
  margin-bottom: 10px;
}

select:focus, input:focus, textarea:focus {
  border-color: var(--primary);
  background: rgba(0, 0, 0, 0.4);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

option {
  background: var(--bg-dark);
}

/* Buttons */
button {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
  filter: brightness(1.1);
}

button:active {
  transform: translateY(0);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  filter: grayscale(1);
}

/* Status Tags */
.tag-pass { color: var(--success); background: rgba(16, 185, 129, 0.1); padding: 4px 8px; border-radius: 6px; border: 1px solid rgba(16, 185, 129, 0.2); }
.tag-fail { color: var(--error); background: rgba(239, 68, 68, 0.1); padding: 4px 8px; border-radius: 6px; border: 1px solid rgba(239, 68, 68, 0.2); }
.tag-redo { color: var(--warning); background: rgba(245, 158, 11, 0.1); padding: 4px 8px; border-radius: 6px; border: 1px solid rgba(245, 158, 11, 0.2); }

/* Video */
video {
  width: 100%;
  border-radius: 12px;
  background: #000;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  margin-top: 10px;
  max-height: 400px;
}

/* Webcam Wrap */
#webcamWrap {
  border: 4px solid var(--glass-border);
  border-radius: 14px;
  overflow: hidden;
  transition: all 0.3s ease;
}

#webcamWrap.recording {
  border-color: var(--error);
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.4);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); }
  100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* Separators */
hr {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
  margin: 30px 0;
}

/* Page Specific: Login */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  width: 100%;
  max-width: 400px;
  text-align: center;
}

/* Animation Utilities */
.fade-in { animation: fadeIn 0.5s ease-out forwards; opacity: 0; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--glass-border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }