/* ─── Custom Properties ─────────────────────────────────────────────────── */
:root {
  --bg:           #080812;
  --bg-alt:       #0d0d1a;
  --bg-card:      #111124;
  --bg-card-h:    #161630;
  --border:       rgba(139,92,246,.18);
  --border-h:     rgba(139,92,246,.45);
  --accent:       #8b5cf6;
  --accent-light: #a78bfa;
  --accent-glow:  rgba(139,92,246,.25);
  --text:         #ede9fe;
  --text-muted:   #a78bfa;
  --text-dim:     #6b7280;
  --font-sans:    'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', monospace;
  --radius:       12px;
  --radius-sm:    8px;
  --transition:   .3s cubic-bezier(.4,0,.2,1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
svg { flex-shrink: 0; }

/* ─── Utility ─────────────────────────────────────────────────────────────── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }
.accent { color: var(--accent-light); }
.highlight {
  color: var(--accent-light);
  background: rgba(139,92,246,.12);
  padding: .1em .35em;
  border-radius: 4px;
  font-weight: 500;
}

/* ─── Navigation ─────────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  background: rgba(8,8,18,.85);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
}

.nav-container {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: .05em;
  color: var(--text);
  transition: color var(--transition);
}
.nav-logo:hover { color: var(--accent-light); }
.nav-logo .accent { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: .25rem;
  list-style: none;
}

.nav-link {
  font-size: .875rem;
  font-weight: 500;
  padding: .45rem .85rem;
  border-radius: 6px;
  color: var(--text-dim);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover { color: var(--text); background: rgba(139,92,246,.08); }
.nav-link.active { color: var(--accent-light); }

.nav-link--disabled {
  opacity: .35;
  cursor: not-allowed;
  pointer-events: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: .4rem;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── Hero ───────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 80px 2rem 4rem;
}

/* Background */
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(139,92,246,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139,92,246,.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 100%);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orbFloat 8s ease-in-out infinite;
}
.hero-orb--1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(139,92,246,.22) 0%, transparent 70%);
  top: -10%; left: -5%;
  animation-delay: 0s;
}
.hero-orb--2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(167,139,250,.15) 0%, transparent 70%);
  bottom: -5%; right: 5%;
  animation-delay: -3s;
}
.hero-orb--3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(99,102,241,.12) 0%, transparent 70%);
  top: 40%; left: 55%;
  animation-delay: -5s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(20px, -30px) scale(1.05); }
  66%       { transform: translate(-15px, 15px) scale(.97); }
}

/* Content */
.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 780px;
}

.hero-greeting {
  font-family: var(--font-mono);
  font-size: .95rem;
  color: var(--accent-light);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: .75rem;
}

.hero-name {
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1.1;
  background: linear-gradient(135deg, #ede9fe 30%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
}

.hero-role {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: var(--text-dim);
  margin-bottom: 1.5rem;
  min-height: 2.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .3em;
}
.hero-role-prefix { color: var(--text-dim); }
.hero-typewriter {
  font-family: var(--font-mono);
  color: var(--accent-light);
  font-weight: 500;
}
.cursor {
  color: var(--accent);
  font-weight: 300;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.hero-description {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 520px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 2rem;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 600;
  letter-spacing: .02em;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 24px rgba(139,92,246,.35);
}
.btn-primary:hover {
  background: var(--accent-light);
  box-shadow: 0 0 36px rgba(139,92,246,.5);
  transform: translateY(-2px);
}
.btn-secondary {
  background: transparent;
  color: var(--accent-light);
  border: 1px solid var(--border-h);
}
.btn-secondary:hover {
  background: rgba(139,92,246,.1);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.hero-socials {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 8px;
  color: var(--text-dim);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.social-link:hover {
  color: var(--accent-light);
  border-color: var(--border-h);
  background: rgba(139,92,246,.08);
  transform: translateY(-2px);
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  color: var(--text-dim);
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  animation: scrollBounce 2.5s ease-in-out infinite;
  opacity: .6;
  transition: opacity var(--transition);
}
.hero-scroll:hover { opacity: 1; }

.scroll-mouse {
  width: 22px; height: 34px;
  border: 1.5px solid currentColor;
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}
.scroll-wheel {
  width: 3px; height: 7px;
  background: currentColor;
  border-radius: 2px;
  animation: scrollWheel 2.5s ease-in-out infinite;
}
@keyframes scrollBounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(6px); }
}
@keyframes scrollWheel {
  0%,100% { opacity:1; transform:translateY(0); }
  80%     { opacity:0; transform:translateY(8px); }
}

/* ─── Section Base ───────────────────────────────────────────────────────── */
.section {
  padding: 7rem 0;
}
.section--alt {
  background: var(--bg-alt);
}

.section-header {
  margin-bottom: 3.5rem;
}
.section-tag {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--accent);
  letter-spacing: .15em;
  text-transform: uppercase;
  display: block;
  margin-bottom: .6rem;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -.025em;
  color: var(--text);
  line-height: 1.2;
}

/* ─── About ──────────────────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 4rem;
  align-items: center;
}

.about-text p {
  color: var(--text-dim);
  margin-bottom: 1.1rem;
  font-size: 1.025rem;
}

.about-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.stat-number {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent-light);
  line-height: 1;
  font-family: var(--font-mono);
}
.stat-label {
  font-size: .8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-top: .35rem;
  display: block;
}

/* Avatar */
.about-image { display: flex; justify-content: center; }

.avatar-frame {
  position: relative;
  width: 200px; height: 200px;
}

.avatar-placeholder {
  width: 100%; height: 100%;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  position: relative;
  z-index: 1;
  overflow: hidden;
}
.avatar-placeholder::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 40% 35%, rgba(139,92,246,.12) 0%, transparent 70%);
}

.avatar-ring {
  position: absolute;
  inset: -12px;
  border-radius: 50%;
  border: 1px solid var(--border);
  animation: ringRotate 12s linear infinite;
}
.avatar-ring--2 {
  inset: -24px;
  border-style: dashed;
  border-color: rgba(139,92,246,.1);
  animation-duration: 20s;
  animation-direction: reverse;
}
@keyframes ringRotate { to { transform: rotate(360deg); } }

/* ─── Skills ─────────────────────────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.skill-group {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color var(--transition), transform var(--transition);
}
.skill-group:hover {
  border-color: var(--border-h);
  transform: translateY(-3px);
}

.skill-group-header {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1.25rem;
}
.skill-icon { color: var(--accent-light); }
.skill-group-header h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.skill-tags { display: flex; flex-wrap: wrap; gap: .5rem; }
.tag {
  font-size: .8rem;
  padding: .3rem .75rem;
  border-radius: 99px;
  background: rgba(139,92,246,.1);
  border: 1px solid rgba(139,92,246,.2);
  color: var(--text-muted);
  font-weight: 500;
  transition: all var(--transition);
}
.tag:hover {
  background: rgba(139,92,246,.2);
  border-color: var(--accent);
  color: var(--text);
}
.tag--sm {
  font-size: .72rem;
  padding: .2rem .6rem;
}

/* ─── Projects ───────────────────────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.project-card:hover {
  border-color: var(--border-h);
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0,0,0,.3), 0 0 0 1px rgba(139,92,246,.12);
}

.project-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}
.project-icon { color: var(--accent); }
.project-links {
  display: flex;
  gap: .6rem;
}
.project-link {
  color: var(--text-dim);
  transition: color var(--transition), transform var(--transition);
}
.project-link:hover { color: var(--accent-light); transform: translateY(-2px); }

.project-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}
.project-description {
  font-size: .875rem;
  color: var(--text-dim);
  line-height: 1.7;
  flex: 1;
}
.project-tech { display: flex; flex-wrap: wrap; gap: .4rem; }
.tech-tag {
  font-size: .7rem;
  font-family: var(--font-mono);
  padding: .2rem .55rem;
  border-radius: 4px;
  background: rgba(139,92,246,.08);
  color: var(--accent-light);
  letter-spacing: .03em;
}

/* ─── Timeline (Experience) ──────────────────────────────────────────────── */
.timeline {
  position: relative;
  padding-left: 2rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}

.timeline-item {
  position: relative;
  padding-bottom: 3rem;
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -2.375rem;
  top: .35rem;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg-alt);
  box-shadow: 0 0 12px var(--accent-glow);
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  transition: border-color var(--transition);
}
.timeline-content:hover { border-color: var(--border-h); }

.timeline-meta {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: .6rem;
}
.timeline-date {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--accent-light);
}
.timeline-badge {
  font-size: .7rem;
  padding: .15rem .55rem;
  border-radius: 99px;
  background: rgba(139,92,246,.15);
  color: var(--accent-light);
  border: 1px solid rgba(139,92,246,.25);
  font-weight: 500;
}
.timeline-badge--intern {
  background: rgba(99,102,241,.15);
  color: #818cf8;
  border-color: rgba(99,102,241,.25);
}

.timeline-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: .2rem;
}
.timeline-company {
  font-size: .875rem;
  color: var(--text-dim);
  display: block;
  margin-bottom: .75rem;
}
.timeline-desc {
  font-size: .875rem;
  color: var(--text-dim);
  line-height: 1.7;
}

/* ─── Education ──────────────────────────────────────────────────────────── */
.education-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.education-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  transition: border-color var(--transition), transform var(--transition);
}
.education-card:hover {
  border-color: var(--border-h);
  transform: translateY(-3px);
}

.education-icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: rgba(139,92,246,.1);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-light);
  flex-shrink: 0;
}

.education-degree {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: .25rem;
}
.education-school {
  display: block;
  font-size: .875rem;
  color: var(--accent-light);
  margin-bottom: .15rem;
}
.education-year {
  display: block;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-dim);
  margin-bottom: .6rem;
}
.education-note {
  font-size: .8rem;
  color: var(--text-dim);
  font-style: italic;
}

/* ─── Blog Cards ─────────────────────────────────────────────────────────── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.blog-card {
  display: flex;
  flex-direction: column;
  gap: .85rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  color: inherit;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.blog-card:hover {
  border-color: var(--border-h);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0,0,0,.3);
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}
.blog-date {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--accent-light);
}
.blog-tags { display: flex; gap: .35rem; flex-wrap: wrap; }

.blog-card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.35;
}
.blog-card-excerpt {
  font-size: .875rem;
  color: var(--text-dim);
  line-height: 1.7;
  flex: 1;
}
.blog-read-more {
  font-size: .8rem;
  color: var(--accent-light);
  font-weight: 500;
  transition: gap var(--transition);
}
.blog-card:hover .blog-read-more { letter-spacing: .02em; }

@media (max-width: 680px) {
  .blog-grid { grid-template-columns: 1fr; }
}

/* ─── Blog (disabled / coming soon) ─────────────────────────────────────── */
.blog-soon {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 4rem 2rem;
  border: 1px dashed rgba(139,92,246,.2);
  border-radius: var(--radius);
  text-align: center;
  color: var(--text-dim);
}
.blog-soon-icon { color: rgba(139,92,246,.35); }
.blog-soon h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
}
.blog-soon p {
  font-size: .9rem;
  max-width: 380px;
}
.blog-soon-badge {
  font-size: .7rem;
  font-family: var(--font-mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .3rem .85rem;
  border-radius: 99px;
  background: rgba(139,92,246,.1);
  border: 1px solid rgba(139,92,246,.2);
  color: var(--accent-light);
}

/* ─── Footer ─────────────────────────────────────────────────────────────── */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
  text-align: center;
}
.footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
}
.footer-name {
  font-size: .9rem;
  color: var(--text-dim);
}
.footer-sub {
  font-size: .8rem;
  color: var(--text-dim);
  opacity: .6;
  margin-bottom: .75rem;
}
.footer-socials { display: flex; gap: .75rem; }

/* ─── Scroll Reveal Animations ───────────────────────────────────────────── */
.reveal-up,
.reveal-left,
.reveal-right,
.reveal-hero {
  opacity: 0;
  transition: opacity .7s ease, transform .7s ease;
  transition-delay: var(--d, 0s);
}

.reveal-up    { transform: translateY(32px); }
.reveal-left  { transform: translateX(-32px); }
.reveal-right { transform: translateX(32px); }
.reveal-hero  { transform: translateY(24px); }

.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible,
.reveal-hero.visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* ─── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-image { order: -1; }
  .skills-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .education-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: rgba(8,8,18,.96);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 1.5rem;
    gap: .25rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .nav-link { width: 100%; text-align: center; padding: .7rem 1rem; }

  .projects-grid { grid-template-columns: 1fr; }

  .about-stats { flex-direction: column; gap: 1.5rem; }

  .hero-description br { display: none; }

  .timeline { padding-left: 1.5rem; }
  .timeline-dot { left: -1.875rem; }

  .section { padding: 5rem 0; }
}

/* ─── Scrollbar ──────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: rgba(139,92,246,.3);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(139,92,246,.5); }

/* ─── Selection ──────────────────────────────────────────────────────────── */
::selection { background: rgba(139,92,246,.3); color: var(--text); }