/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  --bg:          #0d0d14;
  --surface:     #13131f;
  --surface-alt: #1a1a2e;
  --border:      #252535;
  --accent:      #ff6b35;
  --accent-dim:  rgba(255, 107, 53, 0.12);
  --accent-glow: rgba(255, 107, 53, 0.25);
  --text-1:      #f0f0f8;
  --text-2:      #8888a8;
  --text-3:      #555570;
  --radius:      12px;
  --radius-sm:   6px;
  --transition:  0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-body:   'Inter', sans-serif;
  --font-head:   'Space Grotesk', sans-serif;
  --font-mono:   'JetBrains Mono', monospace;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background: var(--bg);
  color: var(--text-1);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.accent { color: var(--accent); }

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.container {
  width: min(1160px, 100% - 3rem);
  margin-inline: auto;
}

.section {
  padding-block: 100px;
}

.section-dark {
  background: var(--surface);
}

.section-header {
  margin-bottom: 60px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--text-1);
  line-height: 1.15;
}

.section-desc {
  margin-top: 16px;
  color: var(--text-2);
  font-size: 1.05rem;
  max-width: 560px;
}

/* ============================================================
   HERO ENTRANCE ANIMATION
   ============================================================ */
.hero-entrance {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s var(--transition), transform 0.65s var(--transition);
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   NAV
   ============================================================ */
#nav {
  position: fixed;
  top: 0;
  inset-inline: 0;
  z-index: 100;
  padding-block: 20px;
  transition: background var(--transition), backdrop-filter var(--transition), padding var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}

#nav.scrolled {
  background: rgba(13, 13, 20, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding-block: 14px;
  border-color: var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1160px, 100% - 3rem);
  margin-inline: auto;
}

.nav-logo {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a.nav-active { color: var(--text-1); }

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

.nav-cta {
  color: var(--accent) !important;
  border: 1px solid var(--accent);
  padding: 6px 18px;
  border-radius: 100px;
  transition: background var(--transition), color var(--transition) !important;
}

.nav-cta:hover {
  background: var(--accent) !important;
  color: #fff !important;
}

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-1);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================================
   HERO
   ============================================================ */
#hero {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding-top: 80px;
  overflow: hidden;
}

#hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -100px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.13) 0%, transparent 65%);
  pointer-events: none;
}

#hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -150px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(130, 170, 255, 0.05) 0%, transparent 65%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  width: min(1160px, 100% - 3rem);
  margin-inline: auto;
}

.hero-greeting {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 14px;
}

.hero-name {
  font-family: var(--font-head);
  font-size: clamp(2.8rem, 5.5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.05;
  color: var(--text-1);
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.hero-role {
  font-family: var(--font-head);
  font-size: clamp(1.2rem, 2.5vw, 1.65rem);
  font-weight: 400;
  color: var(--text-2);
  margin-bottom: 24px;
  height: 2.2em;
  display: flex;
  align-items: center;
  gap: 4px;
}

.typewriter { color: var(--text-1); }

.cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
  font-weight: 300;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-desc {
  font-size: 1rem;
  color: var(--text-2);
  max-width: 480px;
  line-height: 1.75;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 100px;
  font-size: 0.92rem;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: #ff8055;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--text-1);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Hero socials */
.hero-socials {
  display: flex;
  gap: 1rem;
}

.hero-socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--text-2);
  transition: var(--transition);
}

.hero-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.hero-socials svg { width: 18px; height: 18px; }

/* Code window */
.hero-code {
  display: flex;
  justify-content: center;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.code-window {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  width: 100%;
  max-width: 440px;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border);
}

.code-titlebar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: var(--surface-alt);
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red    { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green  { background: #28c840; }

.code-filename {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-3);
  margin-left: 8px;
}

.code-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.9;
  overflow-x: auto;
}

.code-body code { display: block; }

/* Syntax colors */
.c-keyword { color: #c792ea; }
.c-var     { color: #82aaff; }
.c-prop    { color: #f07178; }
.c-str     { color: #c3e88d; }
.c-num     { color: #f78c6c; }
.c-fn      { color: #82aaff; }

/* Scroll indicator */
.scroll-indicator {
  display: flex;
  justify-content: center;
  padding-bottom: 32px;
  margin-top: auto;
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--accent));
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(0.8); }
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.skill-group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color var(--transition);
}

.skill-group:hover { border-color: var(--accent-glow); }

.skill-group-title {
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  background: var(--surface-alt);
  color: var(--text-2);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.pill:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--text-1);
}

/* ============================================================
   EXPERIENCE TIMELINE
   ============================================================ */
.timeline {
  position: relative;
  padding-left: 32px;
}

.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: 40px;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-marker {
  position: absolute;
  left: -38px;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.timeline-marker--edu {
  background: var(--text-3);
  box-shadow: none;
}

.timeline-card {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  transition: border-color var(--transition), transform var(--transition);
}

.timeline-card:hover {
  border-color: rgba(255, 107, 53, 0.3);
  transform: translateX(4px);
}

.timeline-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.timeline-year {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  font-weight: 500;
}

.company-logo {
  height: 24px;
  width: auto;
  object-fit: contain;
  opacity: 0.5;
  filter: grayscale(1);
  transition: opacity var(--transition), filter var(--transition);
}

.timeline-card:hover .company-logo {
  opacity: 1;
  filter: grayscale(0);
}

.timeline-role {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 4px;
}

.timeline-company {
  font-size: 0.88rem;
  color: var(--text-2);
  margin-bottom: 12px;
}

.timeline-desc {
  font-size: 0.92rem;
  color: var(--text-2);
  line-height: 1.65;
  margin-bottom: 14px;
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 500;
}

/* ============================================================
   HIGHLIGHTS
   ============================================================ */
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.highlight-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.highlight-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}

.highlight-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: background var(--transition);
}

.highlight-card:hover .highlight-icon { background: var(--accent-glow); }

.highlight-icon svg {
  width: 24px;
  height: 24px;
  color: var(--accent);
}

.highlight-card h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 10px;
}

.highlight-card p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* ============================================================
   SNAPSHOTS
   ============================================================ */
.snapshots-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.snapshot {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  border: 1px solid var(--border);
}

.snapshot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--transition);
}

.snapshot:hover img { transform: scale(1.06); }

.snapshot-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 10, 20, 0.92) 0%, transparent 50%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  opacity: 0;
  transition: opacity var(--transition);
}

.snapshot:hover .snapshot-overlay { opacity: 1; }

.snapshot-event {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 4px;
}

.snapshot-detail {
  font-size: 0.8rem;
  color: var(--accent);
  font-family: var(--font-mono);
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
}

.contact-blurb {
  color: var(--text-2);
  font-size: 1rem;
  line-height: 1.75;
  margin-top: 16px;
  margin-bottom: 32px;
}

.linkedin-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-2);
  font-size: 0.92rem;
  font-weight: 500;
  border: 1px solid var(--border);
  padding: 10px 20px;
  border-radius: 100px;
  transition: var(--transition);
}

.linkedin-link svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  fill: currentColor;
}

.linkedin-link:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-2);
  letter-spacing: 0.04em;
}

.form-group input,
.form-group textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-1);
  font-family: var(--font-body);
  font-size: 0.92rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  width: 100%;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-3); }

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-submit {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 32px;
}

.form-submit svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.form-success {
  display: none;
  font-size: 0.9rem;
  color: #4ade80;
  font-weight: 500;
}

.form-success.visible { display: block; }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding-block: 32px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-logo {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 700;
}

.footer-copy {
  font-size: 0.84rem;
  color: var(--text-3);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .highlights-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; gap: 3rem; }
  .hero-code { order: -1; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { text-align: center; }
  .code-window { max-width: 380px; margin-inline: auto; }
  .hero-name { font-size: clamp(2.4rem, 8vw, 3.5rem); }
  .skills-grid { grid-template-columns: 1fr; }
  .snapshots-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }
  .nav-links { display: none; }
  .nav-burger { display: flex; }
}

@media (max-width: 560px) {
  .section { padding-block: 70px; }
  .hero-inner { padding-top: 20px; }
  .highlights-grid { grid-template-columns: 1fr; }
  .snapshots-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
  .timeline { padding-left: 20px; }
  .timeline-marker { left: -26px; }
}

/* Mobile nav open state */
#nav.menu-open .nav-links {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(13, 13, 20, 0.97);
  backdrop-filter: blur(16px);
  padding: 24px;
  gap: 1.5rem;
  border-bottom: 1px solid var(--border);
}