/* ============================================
   SUJAL KHARAL — PORTFOLIO CSS
   Theme: Dark editorial with amber accent
   Fonts: Syne + Instrument Serif + DM Mono
============================================ */

:root {
  --bg: #0a0a0a;
  --bg-2: #111111;
  --bg-3: #161616;
  --surface: #1a1a1a;
  --border: rgba(255,255,255,0.08);
  --accent: #f0a500;
  --accent-dim: rgba(240, 165, 0, 0.15);
  --accent-mid: rgba(240, 165, 0, 0.4);
  --text: #e8e2d9;
  --text-dim: #7a7370;
  --text-mid: #a09890;
  --white: #ffffff;
  --radius: 12px;
  --radius-lg: 20px;
  --font-sans: 'Syne', sans-serif;
  --font-serif: 'Instrument Serif', serif;
  --font-mono: 'DM Mono', monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
}

/* ---- NOISE OVERLAY ---- */
.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 180px;
}

/* ---- CUSTOM CURSOR ---- */
.cursor {
  position: fixed;
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1000;
  transform: translate(-50%, -50%);
  transition: width 0.3s var(--ease), height 0.3s var(--ease), background 0.3s, opacity 0.3s;
  mix-blend-mode: difference;
}

.cursor-dot {
  position: fixed;
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1001;
  transform: translate(-50%, -50%);
  transition: transform 0.1s;
}

.cursor.active {
  width: 60px;
  height: 60px;
  background: var(--accent-dim);
}

/* ---- UTILITIES ---- */
.mono {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}

.small {
  font-size: 0.72rem;
}

/* ---- NAV ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem 3rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s, background 0.4s;
}

.nav.scrolled {
  border-color: var(--border);
  background: rgba(10,10,10,0.85);
}

.nav-logo {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-mid);
  text-decoration: none;
  letter-spacing: 0.05em;
  position: relative;
  transition: color 0.3s;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s var(--ease);
}

.nav-links a:hover {
  color: var(--accent);
}

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

.nav-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
}

.status-dot {
  width: 7px;
  height: 7px;
  background: #4caf50;
  border-radius: 50%;
  animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(76,175,80,0.4); }
  50% { opacity: 0.8; box-shadow: 0 0 0 4px rgba(76,175,80,0); }
}

/* ---- HERO ---- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 3rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(240,165,0,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.hero-tag {
  margin-bottom: 2.5rem;
  animation: fadeUp 0.8s var(--ease) both;
  animation-delay: 0.1s;
}

.hero-main {
  display: flex;
  align-items: flex-end;
  gap: 4rem;
  flex-wrap: wrap;
}

.hero-name {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(4.5rem, 13vw, 11rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--white);
  display: flex;
  flex-direction: column;
}

.line-wrap {
  overflow: hidden;
  display: block;
}

.italic {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--accent);
  font-weight: 400;
}

.reveal {
  display: inline-block;
  animation: slideUp 1s var(--ease) both;
}

.line-wrap:nth-child(2) .reveal {
  animation-delay: 0.15s;
}

@keyframes slideUp {
  from { transform: translateY(110%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes fadeUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.hero-meta {
  padding-bottom: 1rem;
  max-width: 380px;
}

.hero-desc {
  font-size: 1rem;
  color: var(--text-mid);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.reveal-fade {
  animation: fadeUp 0.8s var(--ease) 0.5s both;
}

.hero-badges {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  animation: fadeUp 0.8s var(--ease) 0.65s both;
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-mid);
  background: var(--surface);
  letter-spacing: 0.04em;
  transition: border-color 0.3s, color 0.3s;
}

.badge:hover {
  border-color: var(--accent-mid);
  color: var(--accent);
}

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 3rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  animation: fadeUp 0.8s var(--ease) 1s both;
}

.scroll-line {
  width: 60px;
  height: 1px;
  background: var(--accent);
  transform-origin: left;
  animation: expandLine 1.2s var(--ease) 1.2s both;
}

@keyframes expandLine {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

.hero-grid-decor {
  position: absolute;
  right: 3rem;
  top: 50%;
  transform: translateY(-50%);
  width: 240px;
  height: 240px;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 30px 30px;
  opacity: 0.5;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

/* ---- SECTIONS ---- */
.section {
  padding: 6rem 3rem;
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
}

.section-label {
  margin-bottom: 1.5rem;
  color: var(--accent);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.section-heading {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 2.5rem;
  line-height: 1.05;
}

/* ---- ABOUT ---- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 4rem;
  align-items: start;
}

.about-text p {
  color: var(--text-mid);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 1.4rem;
}

.about-text strong {
  color: var(--text);
}

.about-text em {
  color: var(--accent);
  font-family: var(--font-serif);
  font-style: italic;
}

.about-card {
  position: sticky;
  top: 6rem;
}

.card-inner {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: border-color 0.4s;
}

.card-inner:hover {
  border-color: var(--accent-mid);
}

.card-avatar {
  width: 64px;
  height: 64px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 800;
  color: #0a0a0a;
  margin-bottom: 1.8rem;
}

.card-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
  gap: 1rem;
}

.card-row:last-child {
  border-bottom: none;
}

.card-row span:last-child {
  color: var(--text);
  text-align: right;
  font-size: 0.85rem;
}

/* ---- SKILLS ---- */
.skills {
  background: var(--bg-2);
  max-width: 100%;
  padding: 6rem;
}

.skills .section-heading,
.skills .section-label {
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}

.skills-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.skill-card {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: border-color 0.3s, transform 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: attr(data-lang);
  position: absolute;
  right: 1.5rem;
  top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--border);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: color 0.3s;
}

.skill-card:hover {
  border-color: var(--accent-mid);
  transform: translateY(-4px);
}

.skill-card:hover::before {
  color: var(--accent-mid);
}

.skill-icon {
  width: 48px;
  height: 48px;
  color: var(--accent);
  margin-bottom: 1.2rem;
}

.skill-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}

.skill-card p {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

.skill-level {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.skill-bar {
  flex: 1;
  height: 3px;
  background: var(--border);
  border-radius: 100px;
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 100px;
  width: 0;
  transition: width 1.2s var(--ease);
}

.skill-card.visible .skill-fill {
  width: var(--w);
}

/* ---- JOURNEY ---- */
.timeline {
  position: relative;
  padding-left: 0;
  margin-bottom: 4rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 2rem;
  margin-bottom: 3.5rem;
}

.timeline-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 0.3rem;
}

.marker-dot {
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.marker-dot.pulse {
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(240,165,0,0.5); }
  50% { box-shadow: 0 0 0 8px rgba(240,165,0,0); }
}

.marker-line {
  flex: 1;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent-mid), transparent);
  margin-top: 0.5rem;
}

.timeline-content {
  padding-bottom: 1rem;
}

.timeline-tag {
  margin-bottom: 0.6rem;
  color: var(--accent);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

.timeline-content h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.7rem;
  letter-spacing: -0.01em;
}

.timeline-content p {
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.75;
}

.timeline-content strong {
  color: var(--accent);
}

.timeline-item.future .timeline-content {
  opacity: 0.7;
}

/* ---- MENTOR CARD ---- */
.mentor-card {
  background: linear-gradient(135deg, var(--surface), var(--bg-3));
  border: 1px solid var(--accent-mid);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  position: relative;
  overflow: hidden;
}

.mentor-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top left, rgba(240,165,0,0.06), transparent 60%);
  pointer-events: none;
}

.mentor-quote {
  font-family: var(--font-serif);
  font-size: 5rem;
  line-height: 0.8;
  color: var(--accent);
  opacity: 0.4;
  flex-shrink: 0;
}

.mentor-text p {
  color: var(--text-mid);
  font-size: 0.98rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.mentor-text strong {
  color: var(--accent);
}

/* ---- CONTACT ---- */
.contact {
  text-align: center;
}

.contact .section-label,
.contact .section-heading {
  text-align: center;
}

.contact-sub {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 480px;
  margin: 0 auto 3rem;
}

.email-link {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-sans);
  font-size: clamp(1rem, 3vw, 1.6rem);
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 2px solid var(--accent-mid);
  padding-bottom: 0.3rem;
  letter-spacing: -0.01em;
  transition: gap 0.3s, border-color 0.3s;
}

.email-link:hover {
  gap: 1.8rem;
  border-color: var(--accent);
}

.email-link svg {
  transition: transform 0.3s var(--ease);
}

.email-link:hover svg {
  transform: translateX(4px);
}

.contact-footer {
  margin-top: 3rem;
  color: var(--text-dim);
}

/* ---- FOOTER ---- */
.footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-left,
.footer-center,
.footer-right {
  color: var(--text-dim);
}

/* ---- SCROLL ANIMATIONS ---- */
.section-heading,
.about-text p,
.about-card,
.timeline-item,
.mentor-card,
.skill-card {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.section-heading.visible,
.about-text p.visible,
.about-card.visible,
.timeline-item.visible,
.mentor-card.visible,
.skill-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.about-text p:nth-child(2) { transition-delay: 0.1s; }
.about-text p:nth-child(3) { transition-delay: 0.2s; }

.timeline-item:nth-child(2) { transition-delay: 0.1s; }
.timeline-item:nth-child(3) { transition-delay: 0.2s; }
.timeline-item:nth-child(4) { transition-delay: 0.3s; }

.skill-card:nth-child(2) { transition-delay: 0.1s; }
.skill-card:nth-child(3) { transition-delay: 0.2s; }
.skill-card:nth-child(4) { transition-delay: 0.3s; }

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .nav { padding: 1.2rem 1.5rem; }
  .nav-links { display: none; }
  .hero { padding: 7rem 1.5rem 4rem; }
  .hero-main { flex-direction: column; gap: 2rem; }
  .hero-meta { max-width: 100%; }
  .hero-grid-decor { display: none; }
  .section { padding: 4rem 1.5rem; }
  .about-grid { grid-template-columns: 1fr; }
  .about-card { position: static; }
  .skills { padding: 4rem 1.5rem; }
  .skills-grid { grid-template-columns: 1fr; }
  .footer { flex-direction: column; gap: 0.5rem; text-align: center; }
}