:root {
  --bg: #0a0e17;
  --panel: #12182b;
  --panel-2: #171f38;
  --border: rgba(140, 150, 200, 0.14);
  --text: #e7e9f5;
  --text-dim: #9198b8;
  --violet: #7c6cf0;
  --violet-soft: #5b4bd6;
  --cyan: #4dd0e1;
  --amber: #f0b45c;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 14px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 20%, transparent 75%);
  opacity: 0.5;
}

.grad {
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 6vw;
  background: rgba(10, 14, 23, 0.75);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.logo span { color: var(--violet); }
.logo .cursor { color: var(--cyan); animation: blink 1.1s steps(1) infinite; }

.nav-links { display: flex; gap: 2.2rem; }
.nav-links a {
  font-size: 0.92rem;
  color: var(--text-dim);
  transition: color .2s;
}
.nav-links a:hover { color: var(--text); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.4rem;
  cursor: pointer;
}

/* HERO */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 6vw 6vw 8vw;
  min-height: 88vh;
}

.eyebrow {
  font-family: var(--font-mono);
  color: var(--cyan);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  margin-bottom: 0.6rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 5vw, 4.2rem);
  font-weight: 700;
  margin: 0 0 0.4rem;
  line-height: 1.05;
}

.role {
  font-family: var(--font-mono);
  color: var(--text-dim);
  font-size: 1rem;
  margin: 0 0 1.4rem;
}
.role .dot { color: var(--violet); margin: 0 0.3em; }

.lede {
  max-width: 46ch;
  color: var(--text-dim);
  margin-bottom: 2rem;
}
.lede a { color: var(--cyan); border-bottom: 1px solid transparent; }
.lede a:hover { border-color: var(--cyan); }

.hero-actions { display: flex; gap: 1rem; margin-bottom: 1.6rem; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.6rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn-primary {
  background: linear-gradient(90deg, var(--violet-soft), var(--violet));
  color: #fff;
  box-shadow: 0 0 0 rgba(124,108,240,0);
}
.btn-primary:hover { box-shadow: 0 8px 24px -8px rgba(124,108,240,0.6); transform: translateY(-1px); }
.btn-ghost {
  border-color: var(--border);
  color: var(--text);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--violet); color: var(--violet); }
.btn-lg { padding: 1rem 2.2rem; font-size: 1.05rem; }

.hero-links { display: flex; gap: 1.4rem; font-family: var(--font-mono); font-size: 0.85rem; color: var(--text-dim); }
.hero-links a:hover { color: var(--cyan); }

/* HERO VISUAL — photo over a paint-splash shape */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 480px;
}

.hero-photo {
  position: relative;
  z-index: 1;
  width: 380px;
  height: auto;
  max-width: 82%;
  object-fit: contain;
  filter: drop-shadow(0 25px 40px rgba(0,0,0,0.45));
}

.hero-node {
  position: absolute;
  z-index: 2;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.55rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 20px 40px -20px rgba(0,0,0,0.5);
}
.hero-node-1 { top: 8%; right: 4%; }
.hn-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

/* PIPELINE / TERMINAL shared chrome */
.pipeline-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
}
.pdot { width: 10px; height: 10px; border-radius: 50%; }
.pdot.red { background: #ff5f57; }
.pdot.yellow { background: #febc2e; }
.pdot.green { background: #28c840; }
.pipeline-title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}
.prompt { color: var(--violet); }
.blink { animation: blink 1s steps(1) infinite; }

@keyframes blink { 50% { opacity: 0; } }

/* SECTIONS */
.section { padding: 6vw; max-width: 1200px; margin: 0 auto; }
.section-eyebrow {
  font-family: var(--font-mono);
  color: var(--violet);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin: 0 0 0.6rem;
}
.section-sub { color: var(--text-dim); max-width: 60ch; margin-bottom: 2.4rem; }

/* ABOUT — terminal-style AI card */
.terminal-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 80px -30px rgba(0,0,0,0.6);
  margin-bottom: 2.4rem;
}
.terminal-query {
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text);
  background: #0d1220;
  border-bottom: 1px solid var(--border);
}
.spark { color: var(--amber); }
.terminal-response {
  padding: 1.4rem 1.6rem;
  font-size: 0.96rem;
  line-height: 1.7;
  color: var(--text-dim);
  min-height: 9rem;
}
.terminal-response strong { color: var(--text); }

.about-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}
.fact {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.fact-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--violet);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* SKILLS — circuit graph with interactive per-skill nodes */
.section-hint {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  margin: -0.6rem 0 1.6rem;
}
.skills-graph-wrap {
  position: relative;
  min-height: 460px;
}
.skills-svg {
  width: 100%;
  height: auto;
  display: block;
}
.skill-node {
  cursor: pointer;
}
.skill-node circle.hit { fill: transparent; }
.skill-node:hover .node-dot,
.skill-node:focus-visible .node-dot,
.skill-node.active .node-dot {
  stroke: var(--cyan);
  fill: #16233a;
  r: 10;
}
.skill-float-card {
  position: absolute;
  background: rgba(18, 24, 43, 0.96);
  backdrop-filter: blur(6px);
  border: 1px solid var(--violet);
  border-radius: 12px;
  padding: 0.9rem 1.1rem;
  min-width: 190px;
  box-shadow: 0 20px 50px -20px rgba(0,0,0,0.7);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity .15s, transform .15s;
  z-index: 3;
}
.skill-float-card.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.sf-bar {
  height: 5px;
  background: rgba(255,255,255,0.08);
  border-radius: 4px;
  overflow: hidden;
}
.sf-bar i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
}
.sf-level { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-dim); }

.skills-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 2rem;
}
.skills-legend button {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 12px;
  cursor: pointer;
  transition: color .2s, border-color .2s;
}
.skills-legend button:hover,
.skills-legend button:focus-visible,
.skills-legend button.active {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* PROJECTS */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.4rem;
}
.project-card {
  display: block;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  transition: border-color .2s, transform .2s, box-shadow .2s;
  position: relative;
  cursor: pointer;
}
.project-card:hover, .project-card:focus-visible {
  border-color: var(--violet);
  transform: translateY(-3px);
  box-shadow: 0 20px 50px -24px rgba(124,108,240,0.45);
}
.project-card.featured { border-color: var(--violet); background: var(--panel-2); }
.repo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
  opacity: 0.75;
  transition: opacity .2s, gap .2s;
}
.repo-link i { font-style: normal; transition: transform .2s; }
.project-card:hover .repo-link { opacity: 1; gap: 0.5rem; }
.project-card:hover .repo-link i { transform: translate(2px, -2px); }
.repo-note {
  margin-top: 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}
.repo-note code {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
}
.project-tag {
  position: absolute;
  top: -10px;
  left: 1.4rem;
  background: var(--violet);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 3px 10px;
  border-radius: 20px;
}
.project-card h3 { font-family: var(--font-display); margin: 0.4rem 0 0.6rem; font-size: 1.15rem; }
.project-card p { color: var(--text-dim); font-size: 0.92rem; margin: 0 0 1rem; }
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chips span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--cyan);
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: 20px;
}

/* CERTIFICATES — connected cascade */
.certs-cascade {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 2.4rem 1.6rem;
  padding-top: 1rem;
}
.certs-connector {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
  z-index: 0;
}
.cert-card {
  position: relative;
  z-index: 1;
  text-align: center;
  display: block;
  flex: 1 1 200px;
  max-width: 220px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.8rem;
  background: var(--panel);
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.cert-card:nth-of-type(even) { margin-top: 2.4rem; }
.cert-card:nth-of-type(3n+1) { border-color: rgba(124,108,240,0.35); }
.cert-card:nth-of-type(3n+2) { border-color: rgba(77,208,225,0.35); }
.cert-card:hover {
  border-color: var(--violet);
  transform: translateY(-6px);
  box-shadow: 0 24px 50px -22px rgba(124,108,240,0.5);
}
.cert-thumb {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 0.8rem;
  background: #fff;
  display: block;
}
.cert-thumb.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 2rem;
  border: 1px dashed var(--border);
}
.cert-card p { color: var(--text); font-size: 0.85rem; margin: 0; line-height: 1.4; }
.cert-issuer { color: var(--text-dim); font-size: 0.78rem; }

.contact-meta {
  margin-top: 1.2rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

/* CHAT WIDGET */
.bot-row {
  display: flex;
  align-items: flex-end;
  gap: 2rem;
}
.chat-widget {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-width: 640px;
  flex: 1 1 480px;
  overflow: hidden;
}
.bot-mascot {
  position: relative;
  flex: 0 0 140px;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-bottom: 1.5rem;
}
.mascot-svg {
  width: 110px;
  height: auto;
  filter: drop-shadow(0 12px 30px rgba(124,108,240,0.35));
  animation: mascot-float 3.4s ease-in-out infinite;
}
.mascot-bubble {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 14px 14px 14px 4px;
  padding: 0.4rem 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  margin-bottom: 0.6rem;
  animation: mascot-bounce 2.6s ease-in-out infinite;
}
@keyframes mascot-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes mascot-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}
@media (prefers-reduced-motion: reduce) {
  .mascot-svg, .mascot-bubble { animation: none; }
}
.chat-log {
  height: 260px;
  overflow-y: auto;
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}
.msg {
  max-width: 80%;
  padding: 0.7rem 1rem;
  border-radius: 12px;
  font-size: 0.9rem;
  line-height: 1.5;
}
.msg.bot { background: var(--panel-2); color: var(--text); align-self: flex-start; border: 1px solid var(--border); }
.msg.user { background: linear-gradient(90deg, var(--violet-soft), var(--violet)); color: #fff; align-self: flex-end; }
.msg.error { background: rgba(255,95,87,0.12); color: #ff8a83; border: 1px solid rgba(255,95,87,0.3); align-self: flex-start; }

.chat-suggestions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.6rem;
  padding: 0 1.2rem 1rem;
}
.suggestion {
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
  transition: color .2s, border-color .2s, transform .2s;
}
.suggestion:hover { border-color: var(--cyan); transform: translateY(-2px); }
.suggestion-q { font-size: 0.8rem; }
.suggestion-hint {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
}

.chat-input-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 1.2rem;
  border-top: 1px solid var(--border);
  background: #0d1220;
}
.input-spark { color: var(--violet); font-size: 0.9rem; }
.chat-input-row input {
  flex: 1;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.7rem 1rem;
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 0.9rem;
}
.chat-input-row input:focus { outline: 2px solid var(--violet); outline-offset: 1px; }

/* CONTACT */
.contact-section { padding-top: 4vw; padding-bottom: 8vw; }

.footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-dim);
  font-size: 0.82rem;
  font-family: var(--font-mono);
  border-top: 1px solid var(--border);
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 4rem; }
  .about-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .hero-photo { width: 260px; height: auto; }
  .bot-row { flex-direction: column; align-items: stretch; }
  .bot-mascot { flex-direction: row; justify-content: center; padding-bottom: 0; margin-top: 1.2rem; }
  .mascot-bubble { margin-bottom: 0; margin-right: 0.8rem; }
  .cert-card:nth-of-type(even) { margin-top: 0; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg);
    padding: 1rem 6vw;
    border-bottom: 1px solid var(--border);
  }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}
/* CONTACT — form + info sidebar */
.contact-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 1.4rem;
  margin-top: 2rem;
  text-align: left;
}

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.contact-form-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
}

.contact-status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1.4rem;
}

.contact-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(77, 208, 225, 0.1);
  color: var(--cyan);
  border: 1px solid rgba(77, 208, 225, 0.3);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 6px 14px;
  border-radius: 20px;
}

.contact-status-pill .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

.contact-form-panel h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin: 0 0 0.6rem;
}

.contact-form-desc {
  color: var(--text-dim);
  font-size: 0.92rem;
  margin: 0 0 1.4rem;
}

.contact-form-desc strong { color: var(--cyan); }

.contact-field-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.contact-purpose-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.4rem;
}

.contact-purpose-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 14px;
  cursor: pointer;
  transition: color .2s, border-color .2s;
}

.contact-purpose-pill:hover,
.contact-purpose-pill.active {
  color: var(--cyan);
  border-color: var(--cyan);
}

.contact-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

@media (max-width: 520px) {
  .contact-field-row { grid-template-columns: 1fr; }
}

.contact-form-panel input,
.contact-form-panel textarea {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.7rem 0.9rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text);
}

.contact-form-panel input::placeholder,
.contact-form-panel textarea::placeholder {
  color: var(--text-dim);
}

.contact-form-panel textarea {
  min-height: 110px;
  resize: vertical;
  margin-bottom: 1.4rem;
}

.contact-form-panel input:focus,
.contact-form-panel textarea:focus {
  outline: 2px solid var(--violet);
  outline-offset: 1px;
}

.contact-form-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.contact-copy-email {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  background: none;
  border: none;
  cursor: pointer;
}
.contact-copy-email:hover { color: var(--cyan); }

.contact-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-info-card {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  transition: border-color .2s, transform .2s;
}

.contact-info-card:hover {
  border-color: var(--violet);
  transform: translateY(-2px);
}

.contact-info-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: rgba(124, 108, 240, 0.12);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-info-text .contact-info-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 2px;
}

.contact-info-text .contact-info-value {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
}