/* =============================================
   PORTFOLIO — Nitish Chaurasia
   Composio Design Kit Implementation
   ============================================= */

/* --- CSS Variables / Design Tokens --- */
:root {
  /* Colors - Brand & Accent */
  --color-primary: #2563eb; /* Lighter electric blue */
  --color-primary-active: #1d4ed8;
  --color-primary-glow: #3b82f6;
  --color-accent-cyan: #00d4ff;
  --color-accent-violet: #7b3aed;

  /* Colors - Surface */
  --color-canvas: #0f0f0f;
  --color-canvas-deep: #000000;
  --color-surface-card: #181818;
  --color-surface-card-elevated: #222222;
  --color-surface-strong: #2a2a2a;

  /* Colors - Hairlines */
  --color-hairline: #222222;
  --color-hairline-soft: #1a1a1a;
  --color-hairline-strong: #333333;

  /* Colors - Text */
  --color-ink: #ffffff;
  --color-body: #a8a8a8;
  --color-body-strong: #ffffff;
  --color-muted: #888888;
  --color-muted-soft: #666666;

  /* Typography - Font Families */
  --font-family-sans: 'Inter', ui-sans-serif, system-ui, sans-serif;
  --font-family-code: 'JetBrains Mono', 'Fira Code', monospace;

  /* Border Radius */
  --rounded-none: 0px;
  --rounded-xs: 4px;
  --rounded-sm: 6px;
  --rounded-md: 8px;
  --rounded-lg: 12px;
  --rounded-xl: 16px;
  --rounded-pill: 9999px;

  /* Backwards Compat for Portfolio HTML */
  --bg: var(--color-canvas);
  --surface: var(--color-surface-card);
  --border: var(--color-hairline);
  --accent-purple: var(--color-primary);
  --accent-teal: var(--color-primary);
  --accent-red: var(--color-primary);
  --accent-gold: var(--color-primary);
  --text: var(--color-body-strong);
  --muted: var(--color-body);
  --section-dark: var(--color-canvas);
  --radius: var(--rounded-xl);
  --radius-sm: var(--rounded-md);
  --radius-pill: var(--rounded-pill);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-sans);
  font-weight: 400;
  color: var(--color-body);
  background: var(--color-canvas);
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 32px 32px; /* Techy grid background */
  line-height: 1.5;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }
input, textarea { font-family: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px;
}

.section {
  padding: 96px 0; /* Composio 96px rhythm */
}

/* --- Section Utilities --- */
.section-label {
  font-family: var(--font-family-code);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.88px;
  color: var(--color-body-strong);
  display: block;
  margin-bottom: 16px;
  background: var(--color-surface-card-elevated);
  padding: 4px 10px;
  border-radius: var(--rounded-pill);
  width: max-content;
}

.section-heading {
  font-family: var(--font-family-sans);
  font-weight: 500;
  font-size: 44px; /* display-lg */
  line-height: 1.1;
  letter-spacing: -1.32px;
  color: var(--color-ink);
  margin-bottom: 40px;
}
.section-heading em {
  font-style: normal;
  color: var(--color-primary);
}

/* Removed cursor classes */

/* =============================================
   NAVIGATION
   ============================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: 64px;
  background: var(--color-canvas);
  border-bottom: 1px solid var(--color-hairline);
  display: flex;
  align-items: center;
  transition: padding 0.4s ease;
}

.nav-inner {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-family-sans);
  font-weight: 600;
  font-size: 18px;
  color: var(--color-ink);
  letter-spacing: 0;
}
.logo-dot { color: var(--color-primary); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}
.nav-links a {
  font-family: var(--font-family-sans);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-body-strong);
  text-transform: none;
  letter-spacing: 0;
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--color-primary-glow); }

.nav-cta {
  font-family: var(--font-family-sans);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 18px;
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: var(--rounded-md);
  height: 40px;
  display: flex;
  align-items: center;
  transition: background-color 0.2s ease;
}
.nav-cta:hover { background-color: var(--color-primary-active); border:none; color:white; }

.hamburger { display: none; }

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
  position: relative;
  aspect-ratio: 16 / 9;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 120px 24px;
  overflow: hidden;
  background-color: #000;
  background-image: url('../images/hero-bg.png?v=2');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-attachment: scroll;
}

/* Ensure overlay gradient so text remains readable over the image */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5); /* Flat semi-transparent overlay is safer for mobile */
  z-index: 1;
}

.hero-content, .hero-bottom {
  position: relative;
  z-index: 2;
}

#webgl-canvas-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none; /* Let clicks pass through */
}

#webgl-canvas-container canvas {
  opacity: 0; /* Faded in via JS */
  display: block;
}

.css-fallback-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80vw;
  height: 40vh;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
  filter: blur(100px);
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 1s ease;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  background: var(--color-surface-card-elevated);
  border: none;
  border-radius: var(--rounded-pill);
  font-family: var(--font-family-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--color-body-strong);
  margin-bottom: 32px;
}
.pill-dot {
  width: 6px; height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
}

.hero-heading {
  font-family: var(--font-family-sans);
  font-weight: 500;
  font-size: 72px; /* display-mega */
  line-height: 1.05;
  letter-spacing: -2.16px;
  color: var(--color-ink);
  margin-bottom: 28px;
}
.hero-heading span { display: block; }
.hero-name { color: var(--color-primary); background: none; -webkit-text-fill-color: var(--color-primary); }

.hero-roles {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}
.role-pill {
  font-family: var(--font-family-code);
  font-size: 13px;
  font-weight: 400;
  padding: 6px 14px;
  background: var(--color-canvas-deep);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  color: var(--color-body);
}

.hero-desc {
  font-size: 16px; /* body-md */
  font-weight: 400;
  color: var(--color-body);
  max-width: 560px;
  margin-bottom: 32px;
  line-height: 1.5;
}
.hero-desc strong { color: var(--color-body-strong); font-weight: 400; }

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

/* Buttons */
.btn {
  font-family: var(--font-family-sans);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 18px;
  height: 40px;
  border-radius: var(--rounded-md);
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  letter-spacing: 0;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}
.btn-primary:hover {
  background-color: var(--color-primary-active);
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  background-color: var(--color-surface-card-elevated);
  border: none;
  color: var(--color-body-strong);
}
.btn-secondary:hover {
  background-color: var(--color-surface-strong);
}

/* Hero bottom */
.hero-bottom {
  position: absolute;
  bottom: 40px;
  left: 48px; right: 48px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  z-index: 1;
}
.scroll-indicator {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-family-code);
  font-size: 13px;
  color: var(--color-muted);
}
.scroll-line {
  width: 1px; height: 40px; background: var(--color-hairline-strong);
}
.hero-stats { display: flex; gap: 32px; }
.stat-number {
  font-family: var(--font-family-sans);
  font-weight: 500;
  font-size: 32px; /* display-md */
  color: var(--color-ink);
  background: none; -webkit-text-fill-color: var(--color-ink);
  display: block; line-height: 1.15;
}
.stat-label {
  font-family: var(--font-family-code);
  font-size: 13px;
  color: var(--color-muted);
  text-transform: none; letter-spacing: 0;
}

/* --- Animations --- */
.anim-fade-up { opacity: 1; transform: none; animation: none; } /* Disabled to prevent layout jumps for dev aesthetic */
.reveal { opacity: 1; transform: none; transition: none; }
.reveal-left { opacity: 1; transform: none; transition: none; }

/* =============================================
   MARQUEE
   ============================================= */
.marquee-strip {
  background: var(--color-canvas-deep);
  border-top: 1px solid var(--color-hairline);
  border-bottom: 1px solid var(--color-hairline);
  overflow: hidden;
  padding: 16px 0;
}
.marquee-track {
  display: flex;
  width: max-content;
  animation: marqueeScroll 25s linear infinite;
}
.marquee-content {
  display: flex; gap: 48px; padding: 0 24px; flex-shrink: 0;
}
.marquee-content span {
  font-family: var(--font-family-code);
  font-size: 13px;
  font-weight: 400;
  color: var(--color-body);
}
@keyframes marqueeScroll { to { transform: translateX(-50%); } }

/* =============================================
   ABOUT SECTION
   ============================================= */
.about { background: var(--color-canvas); }
.about-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: 80px; align-items: center; }

.photo-frame {
  border-radius: var(--rounded-lg);
  overflow: hidden;
  border: 1px solid var(--color-hairline);
}
.photo-border-decor { display: none; } /* Removed decorative border */

.photo-badge {
  position: absolute; top: 20px; left: -20px;
  padding: 12px 16px;
  background: var(--color-surface-card-elevated);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  z-index: 2; display: flex; flex-direction: column;
}
.badge-number { font-family: var(--font-family-sans); font-weight: 500; font-size: 24px; color: var(--color-ink); line-height: 1; }
.badge-label { font-family: var(--font-family-code); font-size: 11px; color: var(--color-muted); margin-top: 4px; }

.about-text p { font-size: 16px; color: var(--color-body); margin-bottom: 16px; line-height: 1.5; }
.interest-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.interest-pill {
  font-family: var(--font-family-code); font-size: 13px;
  padding: 6px 14px; background: var(--color-surface-card);
  border: 1px solid var(--color-hairline); border-radius: var(--rounded-md); color: var(--color-body);
}

/* =============================================
   SERVICES SECTION
   ============================================= */
.services { background: var(--color-canvas); }
.services-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  background: transparent; border-radius: 0;
}

.service-card {
  background: var(--color-surface-card);
  padding: 24px;
  border-radius: var(--rounded-lg);
  border: 1px solid var(--color-hairline);
  transition: background-color 0.2s ease;
}
.service-card::before { display: none; } /* remove gradient line */
.service-card:hover { background: var(--color-surface-card-elevated); }

.service-icon {
  font-size: 24px; margin-bottom: 16px; display: inline-flex;
  width: 40px; height: 40px; align-items: center; justify-content: center;
  background: var(--color-surface-card-elevated); border-radius: var(--rounded-md);
}
.service-card:hover .service-icon { transform: none; } /* removed bounce */

.service-card h3 {
  font-family: var(--font-family-sans); font-weight: 600; font-size: 16px; color: var(--color-body-strong); margin-bottom: 8px;
}
.service-card p { font-size: 14px; color: var(--color-body); line-height: 1.5; }

/* =============================================
   PROJECTS SECTION
   ============================================= */
.projects { background: var(--color-canvas); }
.filter-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 40px; }
.filter-pill {
  font-family: var(--font-family-sans); font-size: 14px; font-weight: 500;
  padding: 8px 16px; background: transparent; border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md); color: var(--color-body); transition: all 0.2s ease;
}
.filter-pill:hover, .filter-pill.active {
  background: var(--color-surface-card-elevated); color: var(--color-body-strong); border-color: var(--color-hairline-strong);
}

.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.project-card {
  background: var(--color-surface-card); border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-xl); padding: 28px;
  display: flex; flex-direction: column; gap: 12px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.project-card::before { display: none; }
.project-card:hover { transform: translateY(-2px); border-color: var(--color-hairline-strong); box-shadow: none; }

.project-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.project-num { font-family: var(--font-family-code); font-size: 13px; color: var(--color-muted); }
.project-cat { font-family: var(--font-family-code); font-size: 13px; color: var(--color-primary); }

.project-title { font-family: var(--font-family-sans); font-weight: 600; font-size: 18px; color: var(--color-body-strong); }
.project-desc { font-size: 14px; color: var(--color-body); line-height: 1.5; margin-bottom: 16px; flex-grow: 1; }

.project-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.project-tags span {
  font-family: var(--font-family-code); font-size: 11px;
  padding: 4px 8px; background: var(--color-canvas-deep); border-radius: var(--rounded-xs); color: var(--color-muted);
}
.project-card.featured { grid-column: span 2; } /* Keep featured span */

/* =============================================
   TECH STACK / MARQUEES
   ============================================= */
.certifications { background: var(--color-canvas); }
.cert-marquee {
  background: var(--color-canvas); 
  padding: 24px 0; overflow: hidden;
}
.cert-marquee-track { display: flex; width: max-content; animation: marqueeScroll 30s linear infinite; }
.cert-marquee-content { display: flex; gap: 48px; padding: 0 24px; align-items: center; }
.cert-item img { height: 120px; object-fit: contain; filter: grayscale(100%) opacity(0.7); transition: filter 0.3s ease; }
.cert-item img:hover { filter: none; }

/* =============================================
   JOURNEY SECTION
   ============================================= */
.journey { background: var(--color-canvas); }
.timeline { border-left: 1px solid var(--color-hairline); padding-left: 32px; margin-left: 16px; }
.timeline-item { position: relative; margin-bottom: 48px; }
.timeline-dot {
  position: absolute; left: -37px; top: 0; width: 10px; height: 10px;
  background: var(--color-primary); border-radius: 50%; border: 2px solid var(--color-canvas);
}
.timeline-date { font-family: var(--font-family-code); font-size: 13px; color: var(--color-muted); display: block; margin-bottom: 8px; }
.timeline-role { font-family: var(--font-family-sans); font-weight: 600; font-size: 18px; color: var(--color-body-strong); }
.timeline-company { font-family: var(--font-family-sans); font-size: 14px; color: var(--color-primary); display: block; margin-bottom: 12px; }
.timeline-item p { font-size: 16px; color: var(--color-body); line-height: 1.5; }

/* =============================================
   BEYOND WORK SECTION
   ============================================= */
.beyond { background: var(--color-canvas); }
.beyond-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.beyond-card {
  background: var(--color-surface-card); border-radius: var(--rounded-xl); padding: 32px;
  position: relative; overflow: hidden; border: 1px solid var(--color-hairline);
}
.beyond-watermark {
  position: absolute; right: 20px; bottom: -20px; font-size: 120px; opacity: 0.03; color: var(--color-ink);
}
.beyond-card h3 { font-family: var(--font-family-sans); font-weight: 600; font-size: 24px; color: var(--color-body-strong); margin-bottom: 12px; }
.beyond-card p { font-size: 16px; color: var(--color-body); line-height: 1.5; position: relative; z-index: 1; }

/* =============================================
   CONTACT SECTION
   ============================================= */
.contact { background: var(--color-canvas-deep); padding: 96px 0; border-top: 1px solid var(--color-hairline); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }

.social-links { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 32px; }
.social-link {
  display: flex; align-items: center; gap: 12px; padding: 16px;
  background: var(--color-surface-card); border: 1px solid var(--color-hairline); border-radius: var(--rounded-md);
  transition: background-color 0.2s;
}
.social-link:hover { background: var(--color-surface-card-elevated); }
.social-name { font-family: var(--font-family-sans); font-size: 14px; font-weight: 500; color: var(--color-body-strong); }

.contact-form-wrap { background: var(--color-surface-card); padding: 32px; border-radius: var(--rounded-xl); border: 1px solid var(--color-hairline); }
.form-group { margin-bottom: 24px; }
.form-group label {
  font-family: var(--font-family-code); font-size: 13px; color: var(--color-body); display: block; margin-bottom: 8px;
}
.form-group input, .form-group textarea {
  width: 100%; background: var(--color-canvas-deep); border: 1px solid var(--color-hairline);
  padding: 12px 16px; border-radius: var(--rounded-md); color: var(--color-body-strong); font-size: 16px;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--color-primary); }

/* =============================================
   FOOTER
   ============================================= */
.footer { background: var(--color-canvas); border-top: 1px solid var(--color-hairline); padding: 64px 0 48px; }
.footer-logo { font-family: var(--font-family-sans); font-weight: 600; font-size: 24px; color: var(--color-ink); }
.footer-tagline { font-family: var(--font-family-sans); font-size: 14px; color: var(--color-body); }
.footer-silos a { color: var(--color-body); transition: color 0.2s; }
.footer-silos a:hover { color: var(--color-ink); }
.footer-copy { font-family: var(--font-family-sans); font-size: 13px; color: var(--color-muted); margin-top: 24px; }
/* =============================================
   SHOWCASE SECTION
   ============================================= */
.showcase {
  width: 100%;
  overflow: hidden;
  background: #000;
  display: block;
}

.showcase-video {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* Responsive Adjustments */
@media (min-width: 769px) {
  /* .hero-content { display: none; } - Removed to keep header text visible */
}

@media (max-width: 1024px) {
  .hero-heading { font-size: 56px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .project-card.featured { grid-column: span 1; }
}

@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .hero-heading { font-size: 36px; }
  .hero-bottom { display: none; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .services-grid, .projects-grid, .beyond-grid { grid-template-columns: 1fr; }
  .container { padding: 0 24px; }
  .social-links { grid-template-columns: 1fr; }
  .hero {
    aspect-ratio: auto;
    min-height: 100vh;
    background-image: url('../images/hero-mobile.png');
  }
}

/* --- New Footer Styles --- */
.footer-new {
  position: relative;
  background-color: #0d6efd;
  height: 320px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: 'Outfit', sans-serif;
  color: white;
  border-top-left-radius: 24px;
  border-top-right-radius: 24px;
}

.footer-bg-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 15rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.15);
  letter-spacing: -0.04em;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}

.footer-top-right {
  position: absolute;
  top: 32px;
  right: 48px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
}

.footer-bottom-indicator {
  position: absolute;
  bottom: 24px;
  width: 40px;
  height: 4px;
  background: rgba(0, 0, 0, 0.4);
  border-radius: 2px;
}

@media (max-width: 768px) {
  .footer-new {
    height: 200px;
  }
  .footer-bg-text {
    font-size: 7rem;
  }
  .footer-top-right {
    top: 16px;
    right: 16px;
    font-size: 8px;
  }
}