:root{--color-bg: #0f172a;--color-surface: #1e293b;--color-border: #334155;--color-text: #e2e8f0;--color-text-muted: #94a3b8;--color-accent: #3b82f6;--color-accent-hover: #2563eb;--max-width: 800px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--color-bg);color:var(--color-text);line-height:1.6}.app{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1;display:flex;flex-direction:column}.nav{display:flex;align-items:center;justify-content:space-between;padding:1rem 2rem;border-bottom:1px solid var(--color-border);background:var(--color-bg);position:sticky;top:0;z-index:10}.nav-brand{font-size:1.1rem;font-weight:700;color:var(--color-text);text-decoration:none;letter-spacing:.05em}.nav-links{display:flex;gap:2rem}.nav-links a{color:var(--color-text-muted);text-decoration:none;font-size:.95rem;transition:color .2s}.nav-links a:hover,.nav-links a.active{color:var(--color-accent)}.page-transition{flex:1;display:flex;flex-direction:column;transition:opacity .2s ease,transform .3s ease;opacity:1;transform:translateY(0)}.page-exit{opacity:0;transform:translateY(8px)}.page-enter{opacity:0;transform:translateY(-8px);animation:page-fade-in .3s ease forwards}@keyframes page-fade-in{to{opacity:1;transform:translateY(0)}}.page{max-width:var(--max-width);margin:0 auto;padding:3rem 2rem;width:100%}.page h2{font-size:1.75rem;margin-bottom:1.5rem}.home{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:100vh;padding:2rem}.home h1{font-size:3rem;font-weight:700;margin-bottom:.5rem}.home-subtitle{font-size:1.25rem;color:var(--color-accent);margin-bottom:1rem}.home-intro{color:var(--color-text-muted);max-width:500px;margin-bottom:2.5rem}.home-nav{display:flex;gap:1rem}.home-nav a{color:var(--color-text);text-decoration:none;padding:.6rem 1.75rem;border:1px solid var(--color-border);border-radius:6px;transition:border-color .2s,background .2s}.home-nav a:hover{border-color:var(--color-accent);background:var(--color-surface)}.experience-list{display:flex;flex-direction:column;gap:1.5rem}.experience-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;padding:1.5rem}.experience-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:.75rem;gap:1rem}.experience-card h3{font-size:1.1rem;font-weight:600}.experience-company{color:var(--color-accent);font-size:.9rem;margin-top:.2rem}.experience-period{color:var(--color-text-muted);font-size:.85rem;white-space:nowrap}.experience-description{color:var(--color-text-muted);font-size:.95rem}.about p{color:var(--color-text-muted);margin-bottom:2rem}.skills h3{font-size:1.1rem;margin-bottom:1rem}.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem}.skill-category h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;color:var(--color-accent);margin-bottom:.5rem}.skill-category ul{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem}.skill-category li{background:var(--color-surface);border:1px solid var(--color-border);padding:.3rem .75rem;border-radius:16px;font-size:.85rem;color:var(--color-text-muted)}.skills-groups{display:flex;flex-direction:column;gap:2rem}.skills-group h3{font-size:1rem;text-transform:uppercase;letter-spacing:.05em;color:var(--color-accent);margin-bottom:1rem}.skills-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:.75rem}.skill-item{display:flex;align-items:center;gap:.75rem;background:var(--color-surface);border:1px solid var(--color-border);border-radius:10px;padding:.75rem 1rem;transition:border-color .2s}.skill-item:hover{border-color:var(--color-accent)}.skill-icon{font-size:1.25rem;color:var(--color-accent);flex-shrink:0}.skill-item span{font-size:.9rem;color:var(--color-text-muted)}.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}.project-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;padding:1.5rem;display:flex;flex-direction:column;gap:.75rem}.project-card h3{font-size:1.1rem;font-weight:600}.project-description{color:var(--color-text-muted);font-size:.95rem;flex:1}.project-tags{display:flex;flex-wrap:wrap;gap:.4rem}.project-tag{background:var(--color-bg);border:1px solid var(--color-border);padding:.2rem .6rem;border-radius:12px;font-size:.8rem;color:var(--color-text-muted)}.project-link{color:var(--color-accent);text-decoration:none;font-size:.9rem;transition:color .2s}.project-link:hover{color:var(--color-accent-hover)}.chat-page h2{font-size:1.75rem;margin-bottom:.5rem}.chat-description{color:var(--color-text-muted);margin-bottom:1.5rem}.chat-container{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;overflow:hidden}.chat-messages{padding:1.5rem;max-height:500px;overflow-y:auto;display:flex;flex-direction:column;gap:1rem}.chat-message p{padding:.75rem 1rem;border-radius:8px;max-width:85%;word-wrap:break-word}.chat-user{align-self:flex-end}.chat-user p{background:var(--color-accent);color:#fff;margin-left:auto}.chat-assistant p{background:var(--color-bg);color:var(--color-text)}.chat-typing{color:var(--color-text-muted);font-style:italic;font-size:.9rem;padding:.5rem 0}.chat-input-area{display:flex;gap:.75rem;padding:1rem 1.5rem;border-top:1px solid var(--color-border);align-items:flex-end}.chat-input-area textarea{flex:1;background:var(--color-bg);border:1px solid var(--color-border);border-radius:8px;color:var(--color-text);padding:.75rem;font-family:inherit;font-size:.95rem;resize:none;max-height:120px;line-height:1.4}.chat-input-area textarea:focus{outline:none;border-color:var(--color-accent)}.chat-input-area button{background:var(--color-accent);color:#fff;border:none;border-radius:8px;padding:.75rem 1.5rem;font-size:.95rem;cursor:pointer;transition:background .2s;white-space:nowrap}.chat-input-area button:hover:not(:disabled){background:var(--color-accent-hover)}.chat-input-area button:disabled{opacity:.5;cursor:not-allowed}.footer{padding:2rem;text-align:center;color:var(--color-text-muted);font-size:.9rem;border-top:1px solid var(--color-border)}@media(max-width:600px){.home h1{font-size:2rem}.home-subtitle{font-size:1rem}.home-nav{flex-wrap:wrap;justify-content:center}.experience-header{flex-direction:column;gap:.25rem}.chat-messages{max-height:350px}.nav-links{gap:1rem}}