/* ==========================================================================
   MOULISH KUMAR R - MECHANICAL DESIGN ENGINEER PORTFOLIO
   Design Theme: Fluid Flow & Precision Light Mode
   Typography: Plus Jakarta Sans (Headings), Inter (Human Body & Labels)
   ========================================================================== */

:root {
  --font-display: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Clean Light Theme Palette */
  --color-canvas: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-subtle: #f1f5f9;
  --color-primary: #0284c7;
  --color-primary-dark: #0369a1;
  --color-primary-light: #e0f2fe;
  --color-text-main: #0f172a;
  --color-text-muted: #475569;
  --color-text-dim: #64748b;
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-canvas);
  color: var(--color-text-main);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, .font-display {
  font-family: var(--font-display);
  letter-spacing: -0.025em;
}

/* Subtle background drafting matrix */
.bg-blueprint-grid {
  background-image: radial-gradient(circle, rgba(15, 23, 42, 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* Top Subtle Reading Flow Progress Bar */
#scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 2.5px;
  background: linear-gradient(to right, #0284c7, #38bdf8);
  z-index: 100;
  width: 0%;
  transition: width 0.1s ease-out;
}

/* Smooth Page Entrance Flow */
main {
  animation: pageFlowIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes pageFlowIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll-triggered Cascading Flow */
.flow-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.flow-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Enhanced Hover "Look Up Pop" Effect */
.spec-card, .card-hover-pop {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), 
              box-shadow 0.28s cubic-bezier(0.16, 1, 0.3, 1), 
              border-color 0.25s ease;
}

.spec-card:hover, .card-hover-pop:hover {
  transform: translateY(-5px);
  border-color: #7dd3fc;
  box-shadow: 0 18px 36px -8px rgba(2, 132, 199, 0.14), 0 4px 14px -2px rgba(15, 23, 42, 0.04);
}

/* Subtle Pill Badge */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 9999px;
  background-color: #f1f5f9;
  color: #334155;
  border: 1px solid #e2e8f0;
  transition: all 0.2s ease;
}

.badge-pill:hover {
  background-color: #e0f2fe;
  color: #0369a1;
  border-color: #bae6fd;
}

/* Clean Form Inputs */
input, textarea, select {
  font-family: var(--font-body);
}

/* Print Optimization */
@media print {
  nav, footer, #scroll-progress-bar, .no-print {
    display: none !important;
  }
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }
  .spec-card {
    border: 1px solid #ccc !important;
    box-shadow: none !important;
  }
}