/* ============================
   VARIABLES & THEMES
   ============================ */
:root{
  --radius: 14px;

  /* Light (minimal & elegant) */
  --light-bg: #fbfcff;
  --light-surface: #ffffff;
  --light-text: #122028;
  --light-muted: #6b7280;
  --light-accent: #a78bfa; /* pastel violet */
  --light-accent-2: #86efac; /* pastel mint */

  /* Dark (modern neon) */
  --dark-bg: #08090b;
  --dark-surface: #0f1316;
  --dark-text: #e6f2ff;
  --dark-muted: #94a3b8;
  --dark-accent: #00ffd1; /* neon mint */
  --dark-accent-2: #6f5cff; /* neon violet */
}

/* Theme tokens applied to class on body */
body.theme-light{
  --bg: var(--light-bg);
  --surface: var(--light-surface);
  --text: var(--light-text);
  --muted: var(--light-muted);
  --accent: linear-gradient(90deg,var(--light-accent),var(--light-accent-2));
  --accent-solid: #9b8cff;
  --glass: rgba(255,255,255,0.6);
  --shadow: 0 6px 28px rgba(13,20,25,0.06);
}
body.theme-dark{
  --bg: var(--dark-bg);
  --surface: var(--dark-surface);
  --text: var(--dark-text);
  --muted: var(--dark-muted);
  --accent: linear-gradient(90deg,var(--dark-accent),var(--dark-accent-2));
  --accent-solid: #2bffde;
  --glass: rgba(255,255,255,0.04);
  --shadow: 0 10px 40px rgba(0,0,0,0.6);
}

/* ============================
   GLOBAL RESET & LAYOUT
   ============================ */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  min-height:100%;
  font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
  background: radial-gradient(1200px 600px at 10% 10%, rgba(0,0,0,0.03), transparent), var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  transition: background .6s ease, color .45s ease;
  line-height:1.5;
}

/* helper container */
.container{max-width:1100px;margin:0 auto;padding:0 24px;}

/* NAV */
.nav{position:fixed;left:0;right:0;top:16px;z-index:80;pointer-events:auto}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:1200px;margin:0 auto;padding:0 24px}
.brand{display:flex;align-items:center;gap:10px}
.logo-dot{width:12px;height:12px;border-radius:50%;background:var(--accent-solid);box-shadow:0 6px 18px rgba(0,0,0,0.12)}
.brand-text{font-weight:600;letter-spacing:0.2px}
.links{display:flex;gap:18px}
.links a{text-decoration:none;color:var(--muted);font-weight:500;position:relative;padding:8px 6px;transition:color .25s}
.links a::after{content:"";position:absolute;left:0;right:0;height:2px;background:var(--accent-solid);transform:scaleX(0);transform-origin:left center;transition:transform .35s}
.links a:hover{color:var(--text)}
.links a:hover::after{transform:scaleX(1)}

/* THEME BUTTON */
.controls{display:flex;align-items:center;gap:12px}
.theme-btn{
  background:transparent;border:none;padding:8px;border-radius:10px;color:var(--accent-solid);cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:transform .22s ease, box-shadow .22s;
}
.theme-btn:active{transform:scale(.96)}
.theme-btn:hover{box-shadow:var(--shadow)}

/* HERO */
.hero{min-height:88vh;display:grid;place-items:center;padding:80px 20px 60px;position:relative;overflow:visible}
.hero-inner{text-align:center;max-width:920px;position:relative;z-index:2}
.hero-title{font-size:clamp(28px,6vw,48px);margin:0;font-weight:700;letter-spacing:-0.6px}
.hero-title .name{background:linear-gradient(90deg,transparent 0,transparent 30%, var(--accent-solid) 40%, transparent 60%);padding:0 .15em}
.hero-sub{color:var(--muted);margin:.6rem 0 1.2rem;font-weight:500}

/* Typewriter */
.typewrap{display:inline-flex;align-items:center;gap:12px;margin-top:.3rem}
.type-prefix{color:var(--muted);font-weight:500}
.typewriter{font-family:'Space Grotesk',sans-serif;font-weight:600;color:var(--accent-solid);min-width:180px}

/* CTA */
.hero-cta{display:flex;gap:14px;justify-content:center;margin-top:20px}
.cta-btn{background:var(--accent);background-size:200% 100%;color: #061018;padding:12px 18px;border-radius:12px;text-decoration:none;font-weight:600;box-shadow:0 10px 30px rgba(0,0,0,0.08);transition:transform .28s,box-shadow .28s}
.cta-btn:hover{transform:translateY(-6px)}
.cta-ghost{border:1px solid rgba(0,0,0,.06);padding:10px 16px;border-radius:12px;text-decoration:none;color:var(--muted);background:transparent}

/* floating profile */
.hero-floating{position:absolute;right:8%;top:18%;transform:translateY(-10px);backdrop-filter: blur(6px);border-radius:18px;padding:8px;background:var(--glass);box-shadow:var(--shadow)}
.profile-img{width:98px;height:98px;border-radius:14px;object-fit:cover;border:3px solid rgba(255,255,255,0.06)}

/* Scroll indicator */
.scroll-indicator{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);text-decoration:none;color:var(--muted);font-size:22px;animation:bounce 2s infinite}
@keyframes bounce{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,10px)}}

/* SECTIONS */
section{padding:60px 0}
.reveal{opacity:0;transform:translateY(18px);transition:all .8s cubic-bezier(.2,.9,.2,1)}
.reveal.visible{opacity:1;transform:none}

/* ABOUT */
.about .container{display:grid;grid-template-columns:1fr 360px;gap:28px;align-items:start}
.glass-card{background:var(--surface);padding:20px;border-radius:14px;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,0.03)}
.timeline{list-style:none;padding-left:0;margin:0}
.timeline li{padding:10px 0;border-left:3px solid rgba(0,0,0,0.04);padding-left:12px;margin-bottom:8px;color:var(--muted);font-weight:500}
.timeline li span{display:inline-block;width:56px;color:var(--accent-solid);font-weight:700}

/* SKILLS */
.skills h2{text-align:center;margin-bottom:22px}
.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.skill-block{background:var(--surface);padding:14px;border-radius:12px;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,0.02)}
.skill-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.bar{height:10px;background:linear-gradient(90deg,rgba(0,0,0,0.06),rgba(0,0,0,0.02));border-radius:999px;overflow:hidden}
.fill{height:100%;width:0%;background:linear-gradient(90deg,var(--accent-solid),rgba(255,255,255,0.06));transition:width 1.4s cubic-bezier(.2,.9,.2,1)}

/* PROJECTS */
.projects h2{text-align:center;margin-bottom:16px}
.project-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}
.project-card{perspective:1200px;cursor:pointer}
.card-inner{background:var(--surface);padding:20px;border-radius:14px;min-height:160px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:var(--shadow);transition:transform .28s ease,box-shadow .28s ease,background .3s}
.project-card:hover .card-inner{transform:translateY(-12px) rotateX(6deg);box-shadow:0 30px 60px rgba(0,0,0,0.25)}
.project-card .meta{display:flex;justify-content:space-between;align-items:center;margin-top:12px}
.repo{text-decoration:none;color:var(--accent-solid);font-weight:600}
.repo:hover{text-decoration:underline}

/* CONTACT */
.contact-grid{display:grid;grid-template-columns:1fr 380px;gap:20px;align-items:start}
.contact-form{display:flex;flex-direction:column;gap:12px}
.contact-form input,.contact-form textarea{padding:12px;border-radius:10px;border:none;background:rgba(255,255,255,0.03);color:inherit;outline:none;box-shadow:inset 0 1px 0 rgba(255,255,255,0.02)}
.contact-card{background:var(--surface);padding:18px;border-radius:12px;box-shadow:var(--shadow)}

/* FOOTER */
.footer{padding:28px 0;text-align:center;color:var(--muted);border-top:1px solid rgba(255,255,255,0.03)}

/* RESPONSIVE */
@media (max-width:920px){
  .about .container{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .hero-floating{display:none}
  .links{display:none}
}