/* ==========================================================================
   ASISH SONTI — PORTFOLIO DESIGN SYSTEM
   Brand Colors, Typography, Global Components & Editorial Layouts
   ========================================================================== */

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

:root {
  /* Exact Color Palette Requested */
  --bg-primary: #0B0F19;
  --bg-secondary: #111827;
  --bg-card-hover: #1F2937;
  --border-subtle: #1E293B;
  --border-accent: rgba(0, 240, 255, 0.3);
  --text-primary: #FFFFFF;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --accent-cyan: #00F0FF;
  --accent-cyan-hover: #00C8FF;
  --accent-glow: rgba(0, 240, 255, 0.15);

  /* Mapped Design Tokens */
  --bg-main: var(--bg-primary);
  --bg-card: var(--bg-secondary);
  --bg-elevated: var(--bg-card-hover);
  --blue-electric: var(--accent-cyan-hover);
  --cyan-secondary: var(--accent-cyan);
  --text-main: var(--text-primary);
  --border-color: var(--border-subtle);
  --border-bright: var(--border-accent);
  --blue-glow: var(--accent-glow);
  --blue-glow-intense: rgba(0, 240, 255, 0.35);

  /* Typography */
  --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing & Layout */
  --container-max: 1200px;
  --container-wide: 1280px;
  --nav-height: 80px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================
   CSS Reset & Base Styles
   ========================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--bg-main);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  background-color: var(--bg-main);
  color: var(--text-main);
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--blue-electric);
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-muted);
  font-weight: 400;
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--cyan-secondary);
  outline-offset: 3px;
}

img, svg {
  display: block;
  max-width: 100%;
}

ul, ol {
  list-style: none;
}

/* Containers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

.container-wide {
  max-width: var(--container-wide);
}

/* Subtle Ambient Background Mesh */
.bg-ambient-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: 
    radial-gradient(circle at 15% 20%, rgba(40, 123, 255, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 75%, rgba(85, 214, 255, 0.05) 0%, transparent 45%);
}

.grid-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-size: 60px 60px;
  background-image: 
    linear-gradient(to right, rgba(34, 43, 67, 0.25) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(34, 43, 67, 0.25) 1px, transparent 1px);
  mask-image: radial-gradient(circle at center, black, transparent 85%);
  -webkit-mask-image: radial-gradient(circle at center, black, transparent 85%);
}

/* ==========================================
   NAVIGATION
   ========================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 100;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: transform var(--transition-smooth), background var(--transition-smooth);
}

.site-header.scrolled {
  background: rgba(11, 15, 25, 0.96);
  border-bottom-color: var(--border-accent);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Brand Wordmark */
.brand-wordmark {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-main);
  text-transform: uppercase;
}

.brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan-secondary);
  box-shadow: 0 0 10px var(--cyan-secondary);
  animation: pulseGlow 2.5s infinite ease-in-out;
}

.brand-subtitle {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  font-weight: 400;
  margin-left: 0.25rem;
  border-left: 1px solid var(--border-color);
  padding-left: 0.75rem;
}

/* Desktop Navigation Menu */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  position: relative;
  padding: 0.4rem 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--blue-electric);
  box-shadow: 0 0 8px var(--blue-electric);
  transition: width var(--transition-smooth);
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--cyan-secondary);
}

.nav-link.active::after {
  width: 100%;
  background: var(--cyan-secondary);
  box-shadow: 0 0 10px var(--cyan-secondary);
}

/* Nav CTA Button */
.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.25rem;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-main);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-cta-btn:hover {
  border-color: var(--blue-electric);
  background: var(--bg-elevated);
  box-shadow: 0 0 15px var(--blue-glow);
  color: var(--cyan-secondary);
  transform: translateY(-1px);
}

/* Mobile Toggle Hamburger */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  color: var(--text-main);
  cursor: pointer;
}

.hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px 0;
  background-color: var(--text-main);
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
}

/* Mobile Navigation Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 82%;
  max-width: 380px;
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  z-index: 150;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: -15px 0 40px rgba(0, 0, 0, 0.7);
  transition: right var(--transition-smooth);
}

.mobile-nav-drawer.open {
  right: 0;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.mobile-drawer-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.75rem;
  cursor: pointer;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 2rem;
}

.mobile-nav-link {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.4rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(34, 43, 67, 0.3);
}

.mobile-nav-link.active {
  color: var(--cyan-secondary);
}

.mobile-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 140;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

.mobile-backdrop.open {
  opacity: 1;
  visibility: visible;
}

/* ==========================================
   BUTTONS & INTERACTIVE ELEMENTS
   ========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

/* Primary Electric Blue Button */
.btn-primary {
  background: var(--blue-electric);
  color: #FFFFFF;
  border: 1px solid rgba(85, 214, 255, 0.4);
  box-shadow: 0 0 20px var(--blue-glow);
}

.btn-primary:hover {
  background: #1e6beb;
  box-shadow: 0 0 30px var(--blue-glow-intense);
  transform: translateY(-2px);
  color: #FFFFFF;
}

.btn-primary svg {
  transition: transform var(--transition-fast);
}

.btn-primary:hover svg {
  transform: translateX(4px);
}

/* Secondary Ghost / Outline Button */
.btn-secondary {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  background: rgba(13, 19, 38, 0.6);
}

.btn-secondary:hover {
  border-color: var(--cyan-secondary);
  color: var(--cyan-secondary);
  background: var(--bg-card);
  box-shadow: 0 0 15px rgba(85, 214, 255, 0.15);
  transform: translateY(-2px);
}

/* Modern Pill Button */
.btn-pill, .btn-retro-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(40, 123, 255, 0.15);
  color: var(--cyan-secondary);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.6rem 1.4rem;
  border-radius: 999px;
  border: 1px solid var(--blue-electric);
  box-shadow: 0 0 12px var(--blue-glow);
  transition: all var(--transition-fast);
}

.btn-pill:hover, .btn-retro-pill:hover {
  background: var(--blue-electric);
  color: #FFFFFF;
  box-shadow: 0 0 20px var(--blue-glow-intense);
  transform: translateY(-2px);
}

.btn-pill:active, .btn-retro-pill:active {
  transform: translateY(0);
}

/* Small Tag/Pill Label */
.badge-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan-secondary);
  background: rgba(40, 123, 255, 0.1);
  border: 1px solid rgba(40, 123, 255, 0.3);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ==========================================
   CARDS & SURFACES
   ========================================== */
.card-surface {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  position: relative;
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.card-surface:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 20px var(--accent-glow);
  transform: translateY(-3px);
}

/* ==========================================
   PAGE HERO SECTIONS
   ========================================== */
.page-header-section {
  padding-top: calc(var(--nav-height) + 4rem);
  padding-bottom: 3.5rem;
  position: relative;
  z-index: 2;
  border-bottom: 1px solid var(--border-color);
}

.page-header-pre {
  margin-bottom: 1rem;
}

.page-headline {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  text-transform: uppercase;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.page-description {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  max-width: 760px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ==========================================
   CALL TO ACTION SECTION
   ========================================== */
.cta-banner-section {
  padding: 6rem 0;
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(180deg, var(--bg-main) 0%, var(--bg-secondary) 100%);
}

.cta-banner-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 4rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.cta-banner-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--blue-glow) 0%, transparent 70%);
  pointer-events: none;
}

.cta-headline {
  font-size: clamp(2rem, 4vw, 3.25rem);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  position: relative;
  z-index: 2;
}

.cta-subtitle {
  max-width: 600px;
  margin: 0 auto 2.5rem auto;
  font-size: 1.125rem;
  position: relative;
  z-index: 2;
}

/* ==========================================
   FOOTER
   ========================================== */
.site-footer {
  background: var(--bg-main);
  border-top: 1px solid var(--border-color);
  padding: 5rem 0 2.5rem 0;
  position: relative;
  z-index: 2;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-brand-col p {
  margin-top: 1rem;
  max-width: 320px;
  font-size: 0.9375rem;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cyan-secondary);
  margin-bottom: 1.25rem;
}

.footer-link-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link-list a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-link-list a:hover {
  color: var(--text-main);
  padding-left: 4px;
}

.footer-meta-item {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-bottom {
  border-top: 1px solid rgba(34, 43, 67, 0.6);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Custom Interactive Cursor (Desktop Only) */
.custom-cursor {
  position: fixed;
  width: 20px;
  height: 20px;
  border: 1.5px solid var(--cyan-secondary);
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background-color 0.2s, border-color 0.2s;
  z-index: 9999;
  mix-blend-mode: difference;
}

.custom-cursor-dot {
  position: fixed;
  width: 4px;
  height: 4px;
  background-color: var(--cyan-secondary);
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 10000;
}

.custom-cursor.active {
  width: 45px;
  height: 45px;
  background-color: rgba(40, 123, 255, 0.25);
  border-color: var(--blue-electric);
}

/* Utility Classes */
.text-cyan { color: var(--cyan-secondary); }
.text-electric { color: var(--blue-electric); }
.text-mono { font-family: var(--font-mono); }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }