/* ── Reset & Base ─────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0a0a0a;--bg2:#111;--bg3:#1a1a1a;--bg4:#222;
  --text:#e8e8e8;--text2:#999;--text3:#666;
  --accent:#4fc3f7;--accent2:#81d4fa;
  --green:#66bb6a;--orange:#ffa726;
  --radius:12px;--radius-sm:8px;
  --transition:0.3s cubic-bezier(.4,0,.2,1);
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}
a{color:var(--accent);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent2)}
::selection{background:var(--accent);color:var(--bg)}

/* ── Layout ──────────────────────────────────────────── */
.container{max-width:900px;margin:0 auto;padding:0 24px}
section{padding:80px 0}
section+section{border-top:1px solid #1a1a1a}

/* ── Nav ─────────────────────────────────────────────── */
nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(10,10,10,.85);backdrop-filter:blur(20px);border-bottom:1px solid #1a1a1a;transition:transform .3s}
nav .container{display:flex;align-items:center;justify-content:space-between;height:60px}
nav .logo{font-weight:700;font-size:1.1rem;letter-spacing:-.5px}
nav .nav-links{display:flex;gap:24px;list-style:none}
nav .nav-links a{color:var(--text2);font-size:.875rem;transition:color var(--transition)}
nav .nav-links a:hover{color:var(--text)}
.mobile-toggle{display:none;background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer}

/* ── Hero ────────────────────────────────────────────── */
.hero{min-height:100vh;display:flex;align-items:center;padding-top:60px}
.hero-content{width:100%}
.hero-grid{display:flex;align-items:center;justify-content:space-between;gap:48px}
.hero-text{flex:1}
.hero-photo{flex-shrink:0}
.hero-photo img{width:240px;height:240px;border-radius:50%;object-fit:cover;border:3px solid #222;box-shadow:0 8px 32px rgba(0,0,0,.4)}
.hero h1{font-size:clamp(2.5rem,6vw,4.5rem);font-weight:800;letter-spacing:-2px;line-height:1.05;margin-bottom:16px}
.hero h1 .accent{color:var(--accent)}
.hero .subtitle{font-size:clamp(1rem,2vw,1.35rem);color:var(--text2);max-width:600px;margin-bottom:12px}
.hero .tagline{font-size:1rem;color:var(--text3);max-width:550px;margin-bottom:32px}
.hero .meta{display:flex;gap:20px;flex-wrap:wrap;align-items:center;font-size:.9rem;color:var(--text3)}
.hero .meta a{color:var(--text2)}
.hero .meta svg{width:16px;height:16px;vertical-align:-2px;margin-right:4px;fill:currentColor}
.hero .scroll-hint{margin-top:60px;color:var(--text3);font-size:.8rem;animation:bounce 2s infinite}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

/* ── Section Headers ─────────────────────────────────── */
.section-label{font-size:.75rem;text-transform:uppercase;letter-spacing:3px;color:var(--accent);margin-bottom:8px}
.section-title{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:700;letter-spacing:-1px;margin-bottom:40px}

/* ── About ───────────────────────────────────────────── */
.about-text{font-size:1.05rem;color:var(--text2);max-width:700px;line-height:1.8}
.about-text p{margin-bottom:16px}
.about-text p:last-child{margin-bottom:0}

/* ── Experience Cards ────────────────────────────────── */
.exp-card{background:var(--bg2);border:1px solid #1e1e1e;border-radius:var(--radius);padding:28px 32px;margin-bottom:16px;transition:border-color var(--transition),box-shadow var(--transition)}
.exp-card:hover{border-color:#333;box-shadow:0 4px 24px rgba(0,0,0,.3)}
.exp-header{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;cursor:pointer}
.exp-role{font-size:1.15rem;font-weight:600}
.exp-company{color:var(--text2);font-size:.95rem;margin-top:2px}
.exp-period{color:var(--text3);font-size:.85rem;white-space:nowrap;text-align:right}
.exp-duration{color:var(--text3);font-size:.8rem}
.exp-bullets{margin-top:16px;padding-left:20px}
.exp-bullets li{color:var(--text2);margin-bottom:6px;font-size:.95rem}
.exp-ai-context{margin-top:16px;padding:16px 20px;background:var(--bg3);border-left:3px solid var(--accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-size:.9rem;color:var(--text2);line-height:1.7;display:none}
.exp-ai-context.open{display:block;animation:fadeIn .3s}
.ai-toggle{margin-top:12px;background:none;border:1px solid #333;color:var(--accent);padding:6px 14px;border-radius:20px;font-size:.8rem;cursor:pointer;transition:all var(--transition)}
.ai-toggle:hover{background:var(--accent);color:var(--bg);border-color:var(--accent)}

/* ── Skills ──────────────────────────────────────────── */
.skills-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.skills-category h3{font-size:.85rem;text-transform:uppercase;letter-spacing:2px;color:var(--text3);margin-bottom:16px}
.skills-category h3 .dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:8px}
.dot-strong{background:var(--green)}
.dot-moderate{background:var(--orange)}
.skill-tag{display:inline-block;background:var(--bg3);border:1px solid #2a2a2a;padding:8px 16px;border-radius:20px;font-size:.875rem;color:var(--text2);margin:0 8px 10px 0;transition:all var(--transition)}
.skill-tag:hover{border-color:var(--accent);color:var(--text)}

/* ── Projects ────────────────────────────────────────── */
.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.project-card{background:var(--bg2);border:1px solid #1e1e1e;border-radius:var(--radius);padding:24px;transition:all var(--transition)}
.project-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.project-card h3{font-size:1rem;font-weight:600;margin-bottom:8px}
.project-card p{font-size:.875rem;color:var(--text2)}

/* ── Published Work ───────────────────────────────────── */
.published-card{display:block;background:var(--bg2);border:1px solid #1e1e1e;border-radius:var(--radius);padding:24px 28px;margin-bottom:12px;text-decoration:none;transition:all var(--transition)}
.published-card:hover{border-color:var(--accent);transform:translateX(4px)}
.published-pub{font-size:.75rem;text-transform:uppercase;letter-spacing:2px;color:var(--accent);margin-bottom:8px}
.published-card h3{font-size:1rem;font-weight:600;color:var(--text);margin-bottom:8px}
.published-card p{font-size:.875rem;color:var(--text2);line-height:1.6}

/* ── Education & Certs ───────────────────────────────── */
.edu-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.edu-item,.cert-item{background:var(--bg2);border:1px solid #1e1e1e;border-radius:var(--radius);padding:24px}
.edu-item h3,.cert-item h3{font-size:1rem;font-weight:600;margin-bottom:4px}
.edu-item p,.cert-item p{color:var(--text2);font-size:.9rem}

/* ── Recommendations ─────────────────────────────────── */
.rec-card{background:var(--bg2);border:1px solid #1e1e1e;border-radius:var(--radius);padding:32px;margin-bottom:16px}
.rec-card blockquote{font-size:1.05rem;color:var(--text2);line-height:1.8;font-style:italic;margin-bottom:16px}
.rec-card .rec-author{font-weight:600;font-size:.95rem}
.rec-card .rec-author-title{color:var(--text3);font-size:.85rem}

/* ── Fit Assessment ──────────────────────────────────── */
.fit-textarea{width:100%;min-height:160px;background:var(--bg2);border:1px solid #2a2a2a;border-radius:var(--radius);padding:16px;color:var(--text);font-family:inherit;font-size:.95rem;resize:vertical;transition:border-color var(--transition)}
.fit-textarea:focus{outline:none;border-color:var(--accent)}
.fit-actions{margin-top:16px;display:flex;gap:12px;flex-wrap:wrap}
.btn{padding:10px 24px;border-radius:8px;font-size:.9rem;font-weight:500;cursor:pointer;border:none;transition:all var(--transition)}
.btn-primary{background:var(--accent);color:var(--bg)}
.btn-primary:hover{background:var(--accent2)}
.btn-outline{background:none;border:1px solid #333;color:var(--text2)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.fit-result{margin-top:24px;padding:24px;background:var(--bg2);border:1px solid #1e1e1e;border-radius:var(--radius);display:none;white-space:pre-wrap;color:var(--text2);font-size:.95rem;line-height:1.7}
.fit-result.visible{display:block;animation:fadeIn .4s}

/* ── Chat Panel ──────────────────────────────────────── */
.chat-fab{position:fixed;bottom:24px;right:24px;width:56px;height:56px;border-radius:50%;background:var(--accent);color:var(--bg);border:none;font-size:1.5rem;cursor:pointer;box-shadow:0 4px 20px rgba(79,195,247,.3);z-index:200;transition:all var(--transition);display:flex;align-items:center;justify-content:center}
.chat-fab:hover{transform:scale(1.08);box-shadow:0 6px 28px rgba(79,195,247,.4)}
.chat-panel{position:fixed;bottom:96px;right:24px;width:380px;max-height:520px;background:var(--bg2);border:1px solid #2a2a2a;border-radius:var(--radius);z-index:200;display:none;flex-direction:column;box-shadow:0 12px 48px rgba(0,0,0,.5)}
.chat-panel.open{display:flex;animation:slideUp .3s}
@keyframes slideUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.chat-header{padding:16px 20px;border-bottom:1px solid #2a2a2a;display:flex;justify-content:space-between;align-items:center}
.chat-header h3{font-size:.95rem;font-weight:600}
.chat-close{background:none;border:none;color:var(--text3);font-size:1.2rem;cursor:pointer}
.chat-messages{flex:1;overflow-y:auto;padding:16px 20px;display:flex;flex-direction:column;gap:12px;min-height:200px}
.chat-msg{max-width:85%;padding:10px 14px;border-radius:12px;font-size:.875rem;line-height:1.5}
.chat-msg.bot{background:var(--bg3);color:var(--text2);align-self:flex-start;border-bottom-left-radius:4px}
.chat-msg.user{background:var(--accent);color:var(--bg);align-self:flex-end;border-bottom-right-radius:4px}
.chat-input-wrap{padding:12px 16px;border-top:1px solid #2a2a2a;display:flex;gap:8px}
.chat-input{flex:1;background:var(--bg);border:1px solid #2a2a2a;border-radius:8px;padding:10px 14px;color:var(--text);font-size:.875rem;font-family:inherit}
.chat-input:focus{outline:none;border-color:var(--accent)}
.chat-send{background:var(--accent);color:var(--bg);border:none;border-radius:8px;padding:10px 16px;font-weight:600;cursor:pointer;font-size:.875rem}

/* ── Animations ──────────────────────────────────────── */
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.fade-in{opacity:0;transform:translateY(20px);transition:opacity .6s,transform .6s}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* ── Footer ──────────────────────────────────────────── */
footer{padding:40px 0;text-align:center;color:var(--text3);font-size:.85rem;border-top:1px solid #1a1a1a}

/* ── Responsive ──────────────────────────────────────── */
@media(max-width:768px){
  .container{padding:0 16px}
  section{padding:60px 0}
  .skills-grid,.edu-grid{grid-template-columns:1fr}
  .exp-header{flex-direction:column}
  .exp-period{text-align:left}
  .hero-grid{flex-direction:column-reverse;text-align:center;gap:24px}
  .hero-photo img{width:180px;height:180px}
  .hero .meta{justify-content:center}
  .chat-panel{right:8px;left:8px;width:auto;bottom:88px}
  nav .nav-links{display:none;position:absolute;top:60px;left:0;right:0;background:rgba(10,10,10,.95);flex-direction:column;padding:16px 24px;gap:16px;border-bottom:1px solid #1a1a1a}
  nav .nav-links.open{display:flex}
  .mobile-toggle{display:block}
}
@media(max-width:480px){
  .hero h1{font-size:2rem}
  .projects-grid{grid-template-columns:1fr}
}