/* Custom Styles for BuildIoT Labs - Premium Light SaaS/Agency Aesthetic */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --color-bg-base: #F8F9FA;
  --color-text-primary: #0F172A; /* Deep Slate */
  --color-text-secondary: #475569; /* Slate Gray */
  --color-primary: #2563EB; /* Modern Tech Blue */
  --color-primary-hover: #1D4ED8;
  --color-accent-maroon: #8B0000;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

/* Base resets & variables */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg-base);
  color: var(--color-text-secondary);
  overflow-x: hidden;
}

img {
  background-color: transparent !important;
}

/* Technical Font Rules */
.font-technical {
  font-family: var(--font-mono);
}

/* Light Tech Grid Background Overlay */
.tech-grid-bg {
  background-image: 
    linear-gradient(to right, rgba(37, 99, 235, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(37, 99, 235, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

.tech-grid-bg-fine {
  background-image: 
    linear-gradient(to right, rgba(37, 99, 235, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(37, 99, 235, 0.05) 1px, transparent 1px);
  background-size: 16px 16px;
}

/* Fluid Soft Radial Background Glows */
.glow-lavender {
  background: radial-gradient(circle 600px at 10% 15%, rgba(216, 180, 254, 0.35), transparent 70%);
}

.glow-blue {
  background: radial-gradient(circle 700px at 90% 30%, rgba(186, 230, 253, 0.45), transparent 70%);
}

.glow-amber {
  background: radial-gradient(circle 500px at 50% 65%, rgba(254, 240, 138, 0.25), transparent 70%);
}

/* Premium Light Card & Floating Panels */
.premium-light-card {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.03);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.premium-light-card:hover {
  border-color: rgba(37, 99, 235, 0.3);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
  transform: translateY(-2px);
}

/* Floating Hero Mini UI Cards */
.floating-glass-card {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.3s ease;
}

.floating-glass-card:hover {
  transform: scale(1.03) translateY(-2px);
}

/* Technical Dividers */
.tech-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(226, 232, 240, 0.8), rgba(37, 99, 235, 0.2), rgba(226, 232, 240, 0.8), transparent);
}

.tech-divider-left {
  height: 1px;
  background: linear-gradient(90deg, var(--color-primary) 0%, rgba(226, 232, 240, 0.8) 70%, transparent 100%);
}

/* Pulsing LED Indicators for Light Mode */
@keyframes pulse-led-light {
  0%, 100% {
    opacity: 0.5;
    transform: scale(0.95);
    box-shadow: 0 0 0 rgba(37, 99, 235, 0);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
    box-shadow: 0 0 6px rgba(37, 99, 235, 0.5);
  }
}

.led-pulse-blue {
  animation: pulse-led-light 2s infinite ease-in-out;
}

.led-pulse-blue-fast {
  animation: pulse-led-light 0.8s infinite ease-in-out;
}

@keyframes scanline {
  0% {
    transform: translateY(-100%);
  }
  100% {
    transform: translateY(100%);
  }
}

.scanline-effect {
  position: absolute;
  width: 100%;
  height: 4px;
  background: linear-gradient(to bottom, transparent, rgba(37, 99, 235, 0.05) 50%, transparent);
  animation: scanline 6s linear infinite;
  pointer-events: none;
  z-index: 10;
}

/* Light Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #F1F5F9;
}

::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94A3B8;
}

/* Technical Text Colors for Light Theme */
.terminal-blue {
  color: #2563EB;
  text-shadow: 0 0 3px rgba(37, 99, 235, 0.1);
}

.terminal-amber {
  color: #D97706; /* Darker amber for contrast */
}

.terminal-green {
  color: #16A34A; /* Darker green for contrast */
}

/* Glowing text styling */
.glow-text-blue {
  text-shadow: 0 0 8px rgba(37, 99, 235, 0.2);
}

/* Form overrides */
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-primary) !important;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15) !important;
}

/* Engineering Table Styles */
.eng-table th {
  border-bottom: 2px solid #E2E8F0;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-text-primary);
}

.eng-table td {
  border-bottom: 1px dashed #E2E8F0;
}

.eng-table tr:last-child td {
  border-bottom: none;
}