/* ================================================================
   SHREYAS PAI — PORTFOLIO  |  Dark Glassmorphism · Violet/Indigo
================================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ── TOKENS ── */
:root {
  --bg-deep:#070711;--bg-card:rgba(255,255,255,.045);--bg-card-h:rgba(255,255,255,.07);
  --border:rgba(255,255,255,.08);--border-h:rgba(168,85,247,.4);
  --a1:#a855f7;--a2:#6366f1;--a3:#38bdf8;
  --grad:linear-gradient(135deg,var(--a1),var(--a2));
  --grad-t:linear-gradient(90deg,var(--a1),var(--a2),var(--a3));
  --txt:#f1f1ff;--txt2:#94a3b8;--txt3:#475569;
  --f-sans:'Inter',system-ui,sans-serif;--f-disp:'Space Grotesk',system-ui,sans-serif;
  --r-sm:8px;--r-md:14px;--r-lg:20px;
  --shadow-glow:0 0 40px rgba(168,85,247,.15);
  --tr:.35s cubic-bezier(.4,0,.2,1);--tr-f:.18s ease;
}

/* ── RESET ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--f-sans);background:var(--bg-deep);color:var(--txt);overflow-x:hidden;line-height:1.6}
a{text-decoration:none;color:inherit}ul{list-style:none}
button{font-family:inherit;border:none;cursor:pointer}
::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-deep)}
::-webkit-scrollbar-thumb{background:var(--a1);border-radius:99px}
::selection{background:rgba(168,85,247,.3)}

/* ── UTILS ── */
.container{max-width:1100px;margin:0 auto;padding:0 24px}
.gradient-text{background:var(--grad-t);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.glass-card{background:var(--bg-card);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:var(--r-lg);transition:border-color var(--tr),transform var(--tr),box-shadow var(--tr)}
.glass-card:hover{border-color:var(--border-h);box-shadow:var(--shadow-glow);transform:translateY(-2px)}

/* ── BUTTONS ── */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:50px;font-family:var(--f-disp);font-weight:600;font-size:.95rem;transition:all var(--tr);cursor:pointer;white-space:nowrap}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 4px 20px rgba(168,85,247,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(168,85,247,.55)}
.btn-ghost{background:transparent;color:var(--txt);border:1.5px solid var(--border)}
.btn-ghost:hover{border-color:var(--a1);color:var(--a1);background:rgba(168,85,247,.06);transform:translateY(-2px)}
.btn-full{width:100%;justify-content:center}

/* ── TAGS ── */
.tag{display:inline-block;padding:4px 12px;border-radius:50px;font-size:.75rem;font-weight:600;background:rgba(168,85,247,.12);color:var(--a1);border:1px solid rgba(168,85,247,.25);letter-spacing:.02em}

/* ── REVEAL ── */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ── SECTION COMMONS ── */
.section{padding:100px 0;position:relative}
.section-header{text-align:center;margin-bottom:64px}
.section-tag{display:inline-block;font-family:var(--f-disp);font-size:.8rem;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:var(--a1);background:rgba(168,85,247,.1);border:1px solid rgba(168,85,247,.25);padding:6px 16px;border-radius:50px;margin-bottom:16px}
.section-title{font-family:var(--f-disp);font-size:clamp(2rem,4vw,3rem);font-weight:700;line-height:1.15}
.section-subtitle{margin-top:14px;color:var(--txt2);font-size:1.05rem;max-width:560px;margin-inline:auto}

/* ================================================================
   NAVBAR
================================================================ */
#navbar{position:fixed;top:0;left:0;right:0;z-index:1000;padding:0;transition:all var(--tr)}
#navbar.scrolled{background:rgba(7,7,17,.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);box-shadow:0 4px 30px rgba(0,0,0,.3)}
.nav-container{max-width:1100px;margin:0 auto;padding:20px 24px;display:flex;align-items:center;justify-content:space-between}
.nav-logo{font-family:var(--f-disp);font-size:1.5rem;font-weight:700;letter-spacing:-.02em}
.nav-logo .dot{color:var(--a1)}
.nav-links{display:flex;gap:36px;align-items:center}
.nav-link{font-size:.9rem;font-weight:500;color:var(--txt2);transition:color var(--tr-f);position:relative}
.nav-link::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--grad);border-radius:2px;transition:width var(--tr)}
.nav-link:hover,.nav-link.active{color:var(--txt)}
.nav-link:hover::after,.nav-link.active::after{width:100%}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;padding:4px}
.hamburger span{width:24px;height:2px;background:var(--txt);border-radius:2px;transition:all var(--tr)}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ================================================================
   HERO
================================================================ */
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;text-align:center}
.hero-bg{position:absolute;inset:0;pointer-events:none;overflow:hidden}
#particles-canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.4}
.orb{position:absolute;border-radius:50%;filter:blur(100px);opacity:.2;animation:floatOrb 12s ease-in-out infinite alternate}
.orb-1{width:600px;height:600px;background:radial-gradient(circle,#7c3aed,transparent);top:-200px;left:-150px;animation-duration:14s}
.orb-2{width:500px;height:500px;background:radial-gradient(circle,#4f46e5,transparent);top:50%;right:-150px;animation-duration:10s;animation-delay:-4s}
.orb-3{width:400px;height:400px;background:radial-gradient(circle,#0ea5e9,transparent);bottom:-100px;left:30%;animation-duration:16s;animation-delay:-8s}
@keyframes floatOrb{0%{transform:translate(0,0) scale(1)}100%{transform:translate(40px,30px) scale(1.1)}}

.hero-content{position:relative;z-index:10;max-width:750px;padding:20px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(168,85,247,.1);border:1px solid rgba(168,85,247,.3);color:var(--a1);font-size:.85rem;font-weight:600;padding:8px 18px;border-radius:50px;margin-bottom:28px;letter-spacing:.03em}
.badge-dot{width:8px;height:8px;background:var(--a1);border-radius:50%;animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}

.hero-name{font-family:var(--f-disp);font-size:clamp(2.8rem,7vw,5.5rem);font-weight:700;line-height:1.1;letter-spacing:-.03em;margin-bottom:16px}
.hero-tagline{font-family:var(--f-disp);font-size:clamp(1rem,2.5vw,1.5rem);font-weight:500;color:var(--txt2);margin-bottom:20px;letter-spacing:.08em}
.hero-desc{font-size:1.05rem;color:var(--txt2);max-width:520px;margin:0 auto 36px;line-height:1.8}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:40px}
.hero-socials{display:flex;gap:14px;justify-content:center}

.social-icon{width:44px;height:44px;border-radius:50%;background:var(--bg-card);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--txt2);font-size:1rem;transition:all var(--tr);backdrop-filter:blur(10px)}
.social-icon:hover{background:var(--grad);color:#fff;border-color:transparent;transform:translateY(-3px) scale(1.1);box-shadow:0 8px 20px rgba(168,85,247,.4)}
.social-icon.small{width:38px;height:38px;font-size:.9rem}

.hero-scroll-hint{position:absolute;bottom:40px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--txt3);font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;z-index:10;animation:fadeIn 2s ease 1.5s both}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.scroll-arrow{animation:bounce 2s ease-in-out infinite}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

/* ================================================================
   ABOUT
================================================================ */
.about-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:60px;align-items:center}
.about-image{display:flex;flex-direction:column;align-items:center;gap:28px}
.image-frame{position:relative;width:240px;height:240px}
.avatar-placeholder{width:100%;height:100%;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;position:relative;box-shadow:0 0 60px rgba(168,85,247,.3)}
.avatar-initials{font-family:var(--f-disp);font-size:3.5rem;font-weight:700;color:#fff;letter-spacing:-.02em;z-index:2}
.avatar-ring{position:absolute;border-radius:50%;border:2px solid;animation:spin linear infinite}
.ring-1{width:115%;height:115%;top:-7.5%;left:-7.5%;border-color:rgba(168,85,247,.3) transparent;animation-duration:8s}
.ring-2{width:135%;height:135%;top:-17.5%;left:-17.5%;border-color:rgba(99,102,241,.2) transparent;animation-duration:14s;animation-direction:reverse}
@keyframes spin{to{transform:rotate(360deg)}}

.about-stats{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.stat-card{padding:18px 22px;text-align:center;min-width:90px}
.stat-num{display:block;font-family:var(--f-disp);font-size:1.8rem;font-weight:700;background:var(--grad-t);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-label{font-size:.78rem;color:var(--txt2);font-weight:500;margin-top:4px;display:block}
.about-bio{color:var(--txt2);line-height:1.85;margin-bottom:20px;font-size:1rem}
.about-bio strong{color:var(--txt);font-weight:600}
.about-highlights{display:flex;flex-direction:column;gap:12px;margin-bottom:32px}
.highlight-item{display:flex;align-items:center;gap:14px;color:var(--txt2);font-size:.95rem}
.highlight-item i{width:36px;height:36px;border-radius:10px;background:rgba(168,85,247,.1);border:1px solid rgba(168,85,247,.2);display:flex;align-items:center;justify-content:center;color:var(--a1);flex-shrink:0;font-size:.9rem}

/* ================================================================
   SKILLS
================================================================ */
#skills{background:linear-gradient(180deg,transparent 0%,rgba(99,102,241,.03) 50%,transparent 100%)}
.skills-categories{display:flex;flex-direction:column;gap:48px}
.category-title{font-family:var(--f-disp);font-size:1.05rem;font-weight:600;color:var(--txt2);margin-bottom:20px;display:flex;align-items:center;gap:10px}
.category-title i{color:var(--a1)}
.skills-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:16px}
.skill-card{padding:20px;display:flex;flex-direction:column;gap:10px}
.skill-icon{width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.06);display:flex;align-items:center;justify-content:center;font-size:1.4rem;color:var(--clr,var(--a1))}
.skill-name{font-weight:600;font-size:.95rem;color:var(--txt)}
.skill-bar{height:4px;background:rgba(255,255,255,.06);border-radius:4px;overflow:hidden;margin-top:4px}
.skill-fill{height:100%;width:0;border-radius:4px;background:var(--grad);transition:width 1.2s cubic-bezier(.4,0,.2,1)}
.skill-fill.animate{width:var(--pct)}

/* ================================================================
   PROJECTS
================================================================ */
.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;margin-bottom:48px}
.project-card{overflow:hidden;display:flex;flex-direction:column;transition:all var(--tr)}
.project-card:hover{transform:translateY(-6px);box-shadow:0 20px 50px rgba(168,85,247,.2)}
.project-img{height:160px;background:var(--grad,var(--gradient));display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.project-img::before{content:'';position:absolute;inset:0;background:rgba(0,0,0,.15)}
.project-icon{font-size:3rem;color:rgba(255,255,255,.85);position:relative;z-index:1;filter:drop-shadow(0 4px 12px rgba(0,0,0,.3))}
.project-content{padding:24px;flex:1;display:flex;flex-direction:column;gap:10px}
.project-tags{display:flex;gap:6px;flex-wrap:wrap}
.project-title{font-family:var(--f-disp);font-size:1.15rem;font-weight:700}
.project-desc{color:var(--txt2);font-size:.88rem;line-height:1.7;flex:1}
.project-links{display:flex;gap:12px;margin-top:8px;padding-top:16px;border-top:1px solid var(--border)}
.project-link{display:flex;align-items:center;gap:6px;font-size:.85rem;font-weight:600;color:var(--txt2);transition:color var(--tr-f)}
.project-link:hover{color:var(--a1)}
.project-link-live{color:var(--a2)!important}
.project-link-live:hover{color:var(--a3)!important}
.projects-cta{text-align:center}

/* ================================================================
   EDUCATION TIMELINE
================================================================ */
#education{background:linear-gradient(180deg,transparent 0%,rgba(168,85,247,.03) 50%,transparent 100%)}
.timeline{position:relative;max-width:740px;margin:0 auto;padding-left:32px}
.timeline::before{content:'';position:absolute;left:11px;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--a1),var(--a2),transparent)}
.timeline-item{position:relative;margin-bottom:36px}
.timeline-dot{position:absolute;left:-37px;top:24px;width:16px;height:16px;border-radius:50%;background:var(--grad);box-shadow:0 0 16px rgba(168,85,247,.5);border:3px solid var(--bg-deep)}
.timeline-content{padding:28px 28px 20px}
.timeline-header{display:flex;align-items:center;gap:12px;margin-bottom:12px;flex-wrap:wrap}
.timeline-period{font-size:.82rem;font-weight:600;color:var(--a1);letter-spacing:.04em}
.timeline-badge{font-size:.72rem;font-weight:700;padding:3px 10px;border-radius:50px;letter-spacing:.05em;text-transform:uppercase}
.timeline-badge.current{background:rgba(16,185,129,.12);color:#10b981;border:1px solid rgba(16,185,129,.25)}
.timeline-title{font-family:var(--f-disp);font-size:1.2rem;font-weight:700;margin-bottom:8px}
.timeline-place{font-size:.9rem;color:var(--txt2);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.timeline-place i{color:var(--a2)}
.timeline-desc{font-size:.9rem;color:var(--txt3);line-height:1.75;margin-bottom:14px}
.timeline-tags{display:flex;gap:6px;flex-wrap:wrap}

/* ================================================================
   CONTACT
================================================================ */
.contact-grid{display:grid;grid-template-columns:1fr 1.6fr;gap:36px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:16px}
.contact-card{display:flex;align-items:center;gap:18px;padding:20px 22px}
.contact-card-icon{font-size:1.3rem;color:var(--a1);width:44px;height:44px;background:rgba(168,85,247,.1);border:1px solid rgba(168,85,247,.2);border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.contact-card-label{font-size:.76rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--txt3);margin-bottom:3px}
.contact-card-value{font-size:.95rem;font-weight:500;color:var(--txt2);transition:color var(--tr-f)}
.contact-card-value:hover{color:var(--a1)}
.contact-form{padding:36px}
.form-group{margin-bottom:20px;display:flex;flex-direction:column;gap:8px}
.form-group label{font-size:.85rem;font-weight:600;color:var(--txt2);letter-spacing:.02em}
.form-group input,.form-group textarea{width:100%;background:rgba(255,255,255,.04);border:1.5px solid var(--border);border-radius:var(--r-sm);padding:12px 16px;font-family:var(--f-sans);font-size:.95rem;color:var(--txt);outline:none;transition:border-color var(--tr),box-shadow var(--tr);resize:vertical}
.form-group input:focus,.form-group textarea:focus{border-color:var(--a1);box-shadow:0 0 0 3px rgba(168,85,247,.12)}
.form-group input::placeholder,.form-group textarea::placeholder{color:var(--txt3)}
.form-success{display:none;margin-top:16px;padding:14px 18px;background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.25);border-radius:var(--r-sm);color:#10b981;font-size:.9rem;font-weight:500;align-items:center;gap:10px}
.form-success.show{display:flex}

/* ================================================================
   FOOTER
================================================================ */
.footer{border-top:1px solid var(--border);padding:40px 24px;background:rgba(0,0,0,.2)}
.footer-inner{max-width:1100px;margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:20px}
.footer-name{font-family:var(--f-disp);font-size:1.1rem;font-weight:700;background:var(--grad-t);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.footer-socials{display:flex;gap:12px}
.footer-copy{font-size:.82rem;color:var(--txt3)}

/* ================================================================
   RESPONSIVE
================================================================ */
@media(max-width:900px){
  .about-grid{grid-template-columns:1fr}
  .about-image{flex-direction:row;flex-wrap:wrap}
  .image-frame{width:180px;height:180px}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:700px){
  .nav-links{display:none;position:fixed;top:70px;left:0;right:0;flex-direction:column;gap:0;background:rgba(7,7,17,.97);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);padding:20px 0}
  .nav-links.open{display:flex}
  .nav-link{padding:14px 24px;display:block;width:100%}
  .hamburger{display:flex}
  .section{padding:72px 0}
  .hero-name{font-size:clamp(2.2rem,9vw,3.5rem)}
  .projects-grid{grid-template-columns:1fr}
  .timeline{padding-left:24px}
  .avatar-initials{font-size:2.5rem}
  .image-frame{width:150px;height:150px}
  .about-grid{gap:36px}
  .contact-form{padding:24px}
  .skills-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:420px){
  .hero-actions{flex-direction:column;align-items:center}
  .btn{padding:12px 22px;font-size:.9rem}
}