/* ============ TOKENS ============ */
:root{
  --bg: #0A0F16;
  --bg-elevated: #0F1620;
  --bg-elevated-2: #141D2B;
  --line: #223146;
  --line-soft: #182333;
  --text-hi: #EAF1FB;
  --text-mid: #A7B7CC;
  --text-low: #62758C;
  --accent: #4FE0C8;
  --accent-dim: rgba(79,224,200,0.14);
  --accent-2: #6E8CFF;
  --accent-2-dim: rgba(110,140,255,0.14);
  --warn: #F2B84B;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --font-display: "Space Grotesk", "IBM Plex Sans", sans-serif;
  --font-body: "IBM Plex Sans", -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --maxw: 1160px;
  --shadow-soft: 0 20px 50px -25px rgba(0,0,0,0.6);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth; scroll-padding-top:76px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-hi);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}
h1,h2,h3,h4{font-family:var(--font-display); margin:0; font-weight:600; letter-spacing:-0.01em;}
p{margin:0;}
ul,ol{margin:0; padding:0; list-style:none;}
button{font-family:inherit; cursor:pointer;}
code{font-family:var(--font-mono); font-size:0.9em; color:var(--accent); background:var(--accent-dim); padding:0.1em 0.4em; border-radius:4px;}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
}

:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:4px;
}

.section-inner, .nav-inner, .hero-inner, .footer-inner{
  max-width:var(--maxw);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ NAV ============ */
.nav{
  position:fixed;
  top:0; left:0; right:0;
  z-index:100;
  background:rgba(10,15,22,0.72);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color 0.3s ease, background 0.3s ease;
}
.nav.is-scrolled{
  border-bottom-color:var(--line-soft);
  background:rgba(10,15,22,0.92);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:64px;
}
.nav-brand{
  font-family:var(--font-mono);
  font-size:0.95rem;
  color:var(--text-hi);
  display:inline-flex;
  align-items:center;
  gap:2px;
}
.brand-at, .brand-colon{color:var(--accent);}
.brand-cursor{
  width:8px; height:16px;
  background:var(--accent);
  display:inline-block;
  margin-left:4px;
  animation:blink 1.1s steps(1) infinite;
}
@keyframes blink{50%{opacity:0;}}

.nav-links{
  display:flex;
  gap:28px;
  font-family:var(--font-mono);
  font-size:0.88rem;
}
.nav-links a{
  color:var(--text-mid);
  position:relative;
  padding:4px 0;
  transition:color 0.2s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0; right:100%;
  bottom:-2px;
  height:2px;
  background:var(--accent);
  transition:right 0.25s ease;
}
.nav-links a:hover{color:var(--text-hi);}
.nav-links a.active{color:var(--accent);}
.nav-links a.active::after{right:0;}

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:36px; height:36px;
  background:none;
  border:1px solid var(--line);
  border-radius:8px;
}
.nav-toggle span{
  height:2px; width:16px;
  background:var(--text-hi);
  margin:0 auto;
  transition:transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-menu{
  display:none;
  flex-direction:column;
  gap:2px;
  padding:8px 24px 20px;
  font-family:var(--font-mono);
  font-size:0.95rem;
  border-bottom:1px solid var(--line-soft);
  background:rgba(10,15,22,0.98);
}
.mobile-menu a{
  color:var(--text-mid);
  padding:12px 4px;
  border-bottom:1px solid var(--line-soft);
}
.mobile-menu.is-open{display:flex;}

@media (max-width:820px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
}

/* ============ HERO ============ */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  padding-top:64px;
  overflow:hidden;
}
.net-canvas{
  position:absolute;
  inset:0;
  width:100%; height:100%;
  opacity:0.55;
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.15fr 0.85fr;
  gap:48px;
  align-items:center;
  width:100%;
  padding-top:40px;
  padding-bottom:40px;
}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-mono);
  font-size:0.84rem;
  color:var(--accent);
  background:var(--accent-dim);
  border:1px solid rgba(79,224,200,0.3);
  padding:6px 14px 6px 12px;
  border-radius:999px;
  margin-bottom:22px;
}
.dot-live{
  width:7px; height:7px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 0 rgba(79,224,200,0.6);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(79,224,200,0.5);}
  70%{box-shadow:0 0 0 8px rgba(79,224,200,0);}
  100%{box-shadow:0 0 0 0 rgba(79,224,200,0);}
}
.hero-title{
  font-size:clamp(2.6rem, 6vw, 4.4rem);
  line-height:1.02;
  color:var(--text-hi);
  margin-bottom:14px;
}
.hero-role{
  font-size:clamp(1.05rem, 2vw, 1.3rem);
  color:var(--text-mid);
  font-family:var(--font-display);
  font-weight:500;
  margin-bottom:22px;
}
.hero-role-sep{color:var(--accent);}
.hero-intro{
  max-width:52ch;
  color:var(--text-mid);
  font-size:1.03rem;
  margin-bottom:34px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:34px;
}
.hero-social{
  display:flex;
  gap:20px;
}
.hero-social a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--text-mid);
  font-size:0.92rem;
  transition:color 0.2s ease;
}
.hero-social a:hover{color:var(--accent);}

/* Hero visual */
.hero-visual{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:18px;
}
.photo-frame{
  position:relative;
  width:min(320px, 78vw);
  aspect-ratio:4/5.2;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-elevated);
}
.photo-img{
  width:100%; height:100%;
  object-fit:cover;
  position:relative;
  z-index:1;
}
.photo-glow{
  position:absolute;
  inset:-40% -40% auto auto;
  width:70%; height:70%;
  background:radial-gradient(circle, rgba(79,224,200,0.35), transparent 70%);
  z-index:0;
  filter:blur(10px);
}
.status-chip{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-mono);
  font-size:0.82rem;
  color:var(--text-mid);
  background:var(--bg-elevated);
  border:1px solid var(--line);
  padding:9px 16px;
  border-radius:999px;
}
.status-dot{
  width:8px; height:8px;
  border-radius:50%;
  background:var(--accent);
}

@media (max-width:900px){
  .hero-inner{grid-template-columns:1fr; text-align:left;}
  .hero-visual{order:-1; margin-bottom:8px;}
  .photo-frame{width:min(260px, 60vw);}
}

.scroll-cue{
  position:absolute;
  left:50%;
  bottom:28px;
  transform:translateX(-50%);
  z-index:2;
  width:22px; height:36px;
  border:1px solid var(--line);
  border-radius:14px;
}
.scroll-cue span{
  position:absolute;
  top:7px; left:50%;
  width:4px; height:8px;
  border-radius:2px;
  background:var(--accent);
  transform:translateX(-50%);
  animation:scrollcue 1.8s ease-in-out infinite;
}
@keyframes scrollcue{
  0%{opacity:1; top:7px;}
  70%{opacity:0; top:18px;}
  100%{opacity:0; top:7px;}
}
@media (max-width:600px){.scroll-cue{display:none;}}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 24px;
  border-radius:10px;
  font-size:0.95rem;
  font-weight:500;
  font-family:var(--font-body);
  border:1px solid transparent;
  transition:transform 0.15s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-primary{
  background:var(--accent);
  color:#04141F;
  font-weight:600;
}
.btn-primary:hover{background:#6BE9D4;}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text-hi);
}
.btn-ghost:hover{border-color:var(--accent); color:var(--accent);}
.btn-text{
  background:transparent;
  color:var(--text-mid);
  padding-left:6px; padding-right:6px;
}
.btn-text:hover{color:var(--accent);}
.btn-sm{padding:9px 16px; font-size:0.86rem;}
.btn-full{width:100%;}

/* ============ SECTION SHELL ============ */
.section{
  padding:108px 0;
  position:relative;
}
.section-alt{
  background:linear-gradient(180deg, transparent, rgba(20,29,43,0.35) 12%, rgba(20,29,43,0.35) 88%, transparent);
}
.section-head{margin-bottom:52px; max-width:640px;}
.section-title{
  font-size:clamp(1.9rem, 3.4vw, 2.5rem);
  color:var(--text-hi);
  margin-bottom:12px;
}
.section-lede{
  color:var(--text-mid);
  font-size:1.05rem;
  max-width:56ch;
}

/* ============ ABOUT ============ */
.about-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:40px;
}
.about-text{
  display:grid;
  gap:16px;
  color:var(--text-mid);
  max-width:64ch;
  font-size:1.02rem;
}
.about-grid .terminal{max-width:560px;}

@media (min-width:960px){
  .about-grid{grid-template-columns:1.05fr 0.95fr; align-items:start;}
  .about-grid .section-head{grid-column:1/-1;}
}

.terminal{
  background:#080C12;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-soft);
}
.terminal-bar{
  background:var(--bg-elevated-2);
  padding:10px 16px;
  border-bottom:1px solid var(--line-soft);
}
.terminal-title{
  font-family:var(--font-mono);
  font-size:0.8rem;
  color:var(--text-low);
}
.terminal-body{
  padding:22px 20px;
  font-family:var(--font-mono);
  font-size:0.88rem;
  line-height:1.9;
}
.terminal-body .t-prompt{color:var(--accent-2); margin-right:6px;}
.terminal-body .t-out{color:var(--text-mid); padding-left:18px;}
.terminal-body .t-highlight{color:var(--accent);}
.t-cursor{
  display:inline-block;
  margin-left:4px;
  animation:blink 1.1s steps(1) infinite;
}

/* ============ SKILLS ============ */
.skills-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:16px;
}
.skill-panel{
  grid-column:span 2;
  background:var(--bg-elevated);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
}
.skill-panel.span-2{grid-column:span 2;}
@media (min-width:760px){
  .skills-grid{grid-template-columns:repeat(6, 1fr);}
  .skill-panel{grid-column:span 2;}
  .skill-panel.span-2{grid-column:span 3;}
}
.skill-panel-bar{
  padding:12px 18px;
  border-bottom:1px solid var(--line-soft);
  background:var(--bg-elevated-2);
}
.skill-key{
  font-family:var(--font-mono);
  font-size:0.84rem;
  color:var(--accent-2);
}
.skill-chips{
  padding:18px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.chip{
  font-family:var(--font-mono);
  font-size:0.82rem;
  color:var(--text-mid);
  border:1px solid var(--line);
  padding:7px 13px;
  border-radius:999px;
  position:relative;
  padding-left:22px;
}
.chip::before{
  content:"";
  position:absolute;
  left:10px; top:50%;
  transform:translateY(-50%);
  width:5px; height:5px;
  border-radius:50%;
  background:var(--text-low);
}
.chip-accent{color:var(--text-hi); border-color:rgba(79,224,200,0.35);}
.chip-accent::before{background:var(--accent);}
.chip-sm{font-size:0.76rem; padding:5px 11px 5px 19px;}
.chip-sm::before{left:8px; width:4px; height:4px;}

/* ============ PROJECTS ============ */
.projects-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:20px;
}
@media (max-width:760px){.projects-grid{grid-template-columns:1fr;}}
.project-card{
  background:var(--bg-elevated);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:26px;
  display:flex;
  flex-direction:column;
  gap:12px;
  transition:border-color 0.2s ease, transform 0.2s ease;
}
.project-card:hover{border-color:rgba(79,224,200,0.3); transform:translateY(-3px);}
.project-tag{
  font-family:var(--font-mono);
  font-size:0.78rem;
  color:var(--accent);
  letter-spacing:0.02em;
}
.project-card h3{font-size:1.18rem; color:var(--text-hi);}
.project-card p{color:var(--text-mid); font-size:0.96rem;}
.project-tech{display:flex; flex-wrap:wrap; gap:8px; margin-top:4px;}
.project-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:var(--accent-2);
  font-size:0.9rem;
  margin-top:6px;
  width:fit-content;
}
.project-link:hover{color:var(--accent);}

/* ============ CERTIFICATIONS ============ */
.cert-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:22px;
}
@media (max-width:920px){.cert-grid{grid-template-columns:1fr;}}
.cert-card{
  background:var(--bg-elevated);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.cert-preview{display:block; aspect-ratio:4/3.1; overflow:hidden; background:#fff;}
.cert-preview img{width:100%; height:100%; object-fit:cover; object-position:top; transition:transform 0.3s ease;}
.cert-card:hover .cert-preview img{transform:scale(1.04);}
.cert-body{padding:20px; display:flex; flex-direction:column; gap:8px; flex:1;}
.cert-body h3{font-size:1.02rem; color:var(--text-hi); line-height:1.35;}
.cert-meta{font-family:var(--font-mono); font-size:0.78rem; color:var(--text-low);}
.cert-actions{display:flex; gap:10px; margin-top:auto; padding-top:14px; flex-wrap:wrap;}
.cert-note{font-size:0.8rem; color:var(--text-low); font-style:italic; margin-top:4px;}

/* ============ RESUME ============ */
.resume-grid{
  display:grid;
  grid-template-columns:0.85fr 1.15fr;
  gap:48px;
  align-items:center;
}
@media (max-width:820px){.resume-grid{grid-template-columns:1fr;}}
.resume-preview-wrap{
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-soft);
  background:#fff;
}
.resume-preview-img{width:100%; display:block;}
.resume-copy .section-title{margin-bottom:10px;}
.resume-copy .section-lede{margin-bottom:28px;}

/* ============ JOURNEY / TIMELINE ============ */
.journey-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
}
@media (max-width:760px){.journey-grid{grid-template-columns:1fr;}}
.journey-col-title{
  font-size:1.1rem;
  color:var(--text-mid);
  font-family:var(--font-mono);
  margin-bottom:26px;
  text-transform:lowercase;
}
.timeline{
  position:relative;
  padding-left:26px;
  display:grid;
  gap:30px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:5px; top:6px; bottom:6px;
  width:1px;
  background:var(--line);
}
.timeline-item{position:relative;}
.timeline-item::before{
  content:"";
  position:absolute;
  left:-26px; top:5px;
  width:11px; height:11px;
  border-radius:50%;
  background:var(--bg);
  border:2px solid var(--accent);
}
.timeline-year{
  font-family:var(--font-mono);
  font-size:0.78rem;
  color:var(--accent);
  display:block;
  margin-bottom:6px;
}
.timeline-item h4{font-size:1.02rem; color:var(--text-hi); margin-bottom:4px;}
.timeline-item p{color:var(--text-mid); font-size:0.92rem;}

/* ============ CONTACT ============ */
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr;}}
.contact-list{display:grid; gap:2px; margin-top:32px;}
.contact-list li{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 0;
  border-bottom:1px solid var(--line-soft);
  gap:16px;
}
.contact-label{color:var(--text-low); font-size:0.86rem; font-family:var(--font-mono);}
.contact-value{
  color:var(--text-hi);
  font-size:1rem;
  background:none;
  border:none;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:0;
}
button.contact-value{transition:color 0.2s ease;}
button.contact-value:hover{color:var(--accent);}
a.contact-value:hover{color:var(--accent);}
.copy-hint{
  font-family:var(--font-mono);
  font-size:0.7rem;
  color:var(--text-low);
  border:1px solid var(--line);
  padding:2px 8px;
  border-radius:999px;
}

.contact-form{
  background:var(--bg-elevated);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:28px;
  display:grid;
  gap:14px;
  align-content:start;
}
.contact-form label{
  font-size:0.84rem;
  color:var(--text-mid);
  font-family:var(--font-mono);
}
.contact-form input,
.contact-form textarea{
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:8px;
  padding:12px 14px;
  color:var(--text-hi);
  font-family:var(--font-body);
  font-size:0.95rem;
  resize:vertical;
}
.contact-form input:focus,
.contact-form textarea:focus{border-color:var(--accent); outline:none;}
.form-note{font-size:0.78rem; color:var(--text-low); text-align:center;}

/* ============ FOOTER ============ */
.footer{
  border-top:1px solid var(--line-soft);
  padding:36px 0;
}
.footer-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.footer-name{font-family:var(--font-display); font-weight:600; color:var(--text-hi); margin-right:10px;}
.footer-tag{color:var(--text-low); font-size:0.88rem;}
.footer-links{display:flex; gap:20px;}
.footer-links a{color:var(--text-mid); font-size:0.9rem;}
.footer-links a:hover{color:var(--accent);}
.footer-copy{
  width:100%;
  color:var(--text-low);
  font-size:0.8rem;
  margin-top:10px;
}

/* ============ TOAST ============ */
.toast{
  position:fixed;
  left:50%;
  bottom:28px;
  transform:translateX(-50%) translateY(20px);
  background:var(--bg-elevated-2);
  border:1px solid var(--accent);
  color:var(--text-hi);
  padding:11px 20px;
  border-radius:999px;
  font-size:0.88rem;
  font-family:var(--font-mono);
  opacity:0;
  pointer-events:none;
  transition:opacity 0.25s ease, transform 0.25s ease;
  z-index:200;
}
.toast.is-visible{
  opacity:1;
  transform:translateX(-50%) translateY(0);
}