*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#F8FFFC;--card:#FFFFFF;--accent:#10B981;--accent-light:#A7F3D0;
  --text:#1F2937;--textm:#374151;--textd:#6B7280;
  --shadow:rgba(16,185,129,0.12);--shadow2:rgba(16,185,129,0.2);
  --border:rgba(16,185,129,0.15);--border2:rgba(16,185,129,0.3);
  --r8:8px;--r12:12px;--r20:20px;--r100:100px;
}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:'Inter',sans-serif;overflow-x:hidden;cursor:default}

/* Scroll progress */
#prog{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-light));z-index:9997;transition:width .1s linear}

/* Back to top */
#btt{position:fixed;bottom:2rem;right:2rem;width:44px;height:44px;border-radius:50%;background:var(--card);border:1.5px solid var(--border2);color:var(--accent);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:all .3s;z-index:999;box-shadow:0 4px 20px var(--shadow)}
#btt.show{opacity:1;pointer-events:all}
#btt:hover{background:var(--accent);color:#fff}

/* Blobs */
.blob{position:fixed;border-radius:50%;filter:blur(90px);opacity:.35;pointer-events:none;animation:blobf 14s ease-in-out infinite alternate}
#b1{width:500px;height:500px;background:radial-gradient(circle,#A7F3D0,transparent);top:-120px;right:-120px}
#b2{width:350px;height:350px;background:radial-gradient(circle,#D1FAE5,transparent);bottom:-80px;left:-80px;animation-delay:-7s}
@keyframes blobf{0%{transform:scale(1)}100%{transform:scale(1.12) translate(20px,-15px)}}

/* Particles */
#particles{position:fixed;inset:0;pointer-events:none;z-index:0;overflow:hidden}
.pt{position:absolute;border-radius:50%;background:var(--accent);opacity:0;animation:ptf 9s linear infinite}
@keyframes ptf{0%{opacity:0;transform:translateY(100vh)}20%{opacity:.25}80%{opacity:.1}100%{opacity:0;transform:translateY(-20px)}}

/* Nav */
nav{position:fixed;top:0;left:0;right:0;z-index:900;background:rgba(248,255,252,0.85);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);transition:all .3s}
.nav-inner{max-width:1200px;margin:0 auto;padding:.9rem 2rem;display:flex;align-items:center;justify-content:space-between}
.nav-logo{font-weight:800;font-size:1.1rem;color:var(--accent);letter-spacing:-.5px}
.nav-links{display:flex;gap:2rem;list-style:none}
.nav-links a{color:var(--textm);text-decoration:none;font-size:.875rem;font-weight:500;transition:color .2s;position:relative}
.nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--accent);transition:width .3s;border-radius:2px}
.nav-links a:hover{color:var(--accent)}
.nav-links a:hover::after{width:100%}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.hamburger span{display:block;width:24px;height:2px;background:var(--accent);border-radius:2px;transition:all .3s}
.hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.mobile-menu{display:none;position:fixed;inset:0;background:rgba(248,255,252,.97);z-index:890;flex-direction:column;align-items:center;justify-content:center;gap:2rem}
.mobile-menu.open{display:flex}
.mobile-menu a{color:var(--text);text-decoration:none;font-size:1.5rem;font-weight:700}

/* Loader */
#loader{position:fixed;inset:0;background:var(--bg);z-index:9999;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:1.5rem;transition:opacity .8s,visibility .8s}
#loader.hide{opacity:0;visibility:hidden}
.loader-logo{font-size:2rem;font-weight:800;color:var(--accent)}
.loader-bar{width:200px;height:2px;background:var(--accent-light);border-radius:2px;overflow:hidden}
.loader-fill{height:100%;background:var(--accent);width:0%;animation:lf 1.8s ease forwards}
@keyframes lf{0%{width:0}100%{width:100%}}

/* Sections */
section{position:relative;z-index:1}
.container{max-width:1200px;margin:0 auto;padding:0 2rem}

/* Reveal */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-left{opacity:0;transform:translateX(-30px);transition:opacity .6s ease,transform .6s ease}
.reveal-left.visible{opacity:1;transform:translateX(0)}
.reveal-right{opacity:0;transform:translateX(30px);transition:opacity .6s ease,transform .6s ease}
.reveal-right.visible{opacity:1;transform:translateX(0)}

/* ===== HERO ===== */
#hero{min-height:100vh;display:flex;align-items:center;padding-top:5rem;background:linear-gradient(135deg,rgba(167,243,208,.25) 0%,transparent 60%)}
.hero-grid{display:grid;grid-template-columns:1fr auto;gap:5rem;align-items:center;width:100%}
.hero-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.4rem 1rem;background:rgba(16,185,129,.1);border:1px solid var(--border2);border-radius:var(--r100);font-size:.8rem;color:var(--accent);font-weight:600;margin-bottom:1.5rem}
.hero-badge span{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}}
h1.hero-name{font-size:clamp(2.8rem,6vw,4.8rem);font-weight:800;line-height:1.05;letter-spacing:-2px;color:var(--text);margin-bottom:.5rem}
h1.hero-name span{color:var(--accent)}
.hero-typed{font-size:clamp(1rem,2.5vw,1.4rem);color:var(--accent);font-weight:600;min-height:2rem;margin-bottom:1.5rem}
.hero-typed .cursor{display:inline-block;width:2px;height:1.1em;background:var(--accent);margin-left:2px;vertical-align:middle;animation:blink .8s step-end infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
.hero-sub{font-size:1rem;color:var(--textd);line-height:1.75;max-width:520px;margin-bottom:2.5rem}
.btn-group{display:flex;flex-wrap:wrap;gap:.75rem}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.7rem 1.5rem;border-radius:var(--r100);font-size:.875rem;font-weight:600;text-decoration:none;transition:all .25s;cursor:pointer;border:none;font-family:inherit}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 4px 20px var(--shadow2)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px var(--shadow2);background:#0ea371}
.btn-outline{background:var(--card);color:var(--textm);border:1.5px solid var(--border2);box-shadow:0 2px 10px var(--shadow)}
.btn-outline:hover{background:rgba(16,185,129,.08);border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}

/* Avatar circle */
#avatar-wrap{width:280px;height:280px;border-radius:50%;border:3px solid var(--border2);box-shadow:0 0 0 10px rgba(16,185,129,.06),0 20px 60px var(--shadow2),0 0 60px rgba(16,185,129,.4);cursor:default;position:relative;overflow:hidden;background:linear-gradient(135deg,#D1FAE5,#A7F3D0);flex-shrink:0;transition:all .4s;animation:avatarFloat 3s ease-in-out infinite}
@keyframes avatarFloat{0%,100%{transform:translateY(0px)}50%{transform:translateY(-10px)}}
#avatar-wrap:hover{box-shadow:0 0 0 10px rgba(16,185,129,.1),0 24px 70px var(--shadow2),0 0 80px rgba(16,185,129,.6);transform:scale(1.05)}
#avatar-img{display:none;width:100%;height:100%;object-fit:cover;border-radius:50%}

/* Dark mode toggle */
.dark-mode-toggle{position:fixed;top:5rem;right:2rem;width:50px;height:50px;border-radius:50%;background:var(--card);border:1.5px solid var(--border2);display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:800;transition:all .3s;box-shadow:0 4px 20px var(--shadow)}
.dark-mode-toggle:hover{transform:scale(1.1);box-shadow:0 6px 25px var(--shadow2)}
body.dark-mode{--bg:#0F2420;--card:#1A3A35;--text:#E5F7F3;--textm:#B0D9D0;--textd:#8FB8B0;--shadow:rgba(16,185,129,0.25);--shadow2:rgba(16,185,129,0.35);--border:rgba(16,185,129,0.3);--border2:rgba(16,185,129,0.5)}
body.dark-mode #avatar-wrap{background:linear-gradient(135deg,#0E5C51,#0A3F38);border-color:var(--border2)}
body.dark-mode .proj-card,body.dark-mode .tl-card,body.dark-mode .ach-card,body.dark-mode .stat-card,body.dark-mode .edu-card,body.dark-mode .cert-card,body.dark-mode .gallery-item{background:var(--card)}

/* Image loading placeholder */
.img-placeholder{position:absolute;inset:0;z-index:0;background:linear-gradient(90deg,rgba(16,185,129,.1),rgba(16,185,129,.2),rgba(16,185,129,.1));background-size:200% 100%;animation:shimmer 1.5s infinite}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}
.img-container{position:relative;overflow:hidden;background:var(--bg)}
.img-container img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .4s}
.img-container img.loaded{opacity:1}

/* Section labels */
.section-label{font-size:.72rem;font-weight:700;color:var(--accent);letter-spacing:3px;text-transform:uppercase;margin-bottom:.75rem}
.section-title{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;line-height:1.1;letter-spacing:-1px;color:var(--text);margin-bottom:1.5rem}
.section-title span{color:var(--accent)}

/* ===== ABOUT ===== */
#about{padding:7rem 0;background:linear-gradient(180deg,transparent,rgba(167,243,208,.12),transparent)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:5rem;align-items:center}
.about-text p{color:var(--textd);line-height:1.8;margin-bottom:1rem;font-size:.95rem}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:2rem}
.stat-card{background:var(--card);border:1.5px solid var(--border);border-radius:var(--r12);padding:1.5rem;box-shadow:0 4px 20px var(--shadow);transition:all .3s;position:relative;overflow:hidden}
.stat-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-light));transform:scaleX(0);transition:transform .3s;transform-origin:left}
.stat-card:hover{transform:translateY(-4px);box-shadow:0 10px 35px var(--shadow2);border-color:var(--border2)}
.stat-card:hover::after{transform:scaleX(1)}
.stat-num{font-size:2.2rem;font-weight:800;color:var(--accent)}
.stat-desc{font-size:.8rem;color:var(--textd);margin-top:.25rem}
.focus-box{background:var(--card);border:1.5px solid var(--border);border-radius:var(--r20);padding:2.5rem;box-shadow:0 8px 40px var(--shadow)}
.focus-row{display:flex;align-items:center;gap:.75rem;padding:.85rem 1rem;background:var(--bg);border-radius:var(--r12);border:1px solid var(--border);margin-bottom:.75rem;transition:border-color .2s}
.focus-row:hover{border-color:var(--border2)}
.focus-row:last-child{margin-bottom:0}
.focus-title{font-size:.88rem;font-weight:600;color:var(--text)}
.focus-sub{font-size:.75rem;color:var(--textd)}

/* ===== TIMELINE ===== */
#experience{padding:7rem 0}
.timeline{position:relative;margin-top:3rem;padding-left:2rem}
.timeline::before{content:'';position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(180deg,transparent,var(--accent-light),var(--accent),var(--accent-light),transparent)}
.tl-item{position:relative;margin-bottom:2.5rem;padding-left:2.5rem}
.tl-dot{position:absolute;left:-2.5rem;top:.5rem;width:14px;height:14px;border-radius:50%;background:var(--accent);border:3px solid var(--bg);box-shadow:0 0 0 4px rgba(16,185,129,.2);transition:all .3s}
.tl-item:hover .tl-dot{box-shadow:0 0 0 8px rgba(16,185,129,.12)}
.tl-card{background:var(--card);border:1.5px solid var(--border);border-radius:var(--r12);padding:1.5rem;box-shadow:0 4px 20px var(--shadow);transition:all .3s}
.tl-card:hover{border-color:var(--border2);transform:translateX(6px);box-shadow:0 8px 35px var(--shadow2)}
.tl-header{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:.5rem;margin-bottom:.5rem}
.tl-role{font-size:1rem;font-weight:700;color:var(--text)}
.tl-period{font-size:.72rem;color:var(--accent);background:rgba(16,185,129,.1);padding:.25rem .75rem;border-radius:var(--r100);border:1px solid var(--border2);font-weight:600}
.tl-company{font-size:.83rem;color:var(--accent);margin-bottom:.75rem;font-weight:500}
.tl-bullets{list-style:none}
.tl-bullets li{font-size:.83rem;color:var(--textd);padding:.3rem 0 .3rem 1.1rem;position:relative;line-height:1.6}
.tl-bullets li::before{content:'▸';position:absolute;left:0;color:var(--accent);font-size:.7rem;top:.35rem}

/* ===== PROJECTS ===== */
#projects{padding:7rem 0;background:linear-gradient(180deg,transparent,rgba(167,243,208,.1),transparent)}
.filter-bar{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:2.5rem}
.filter-btn{padding:.4rem 1rem;border-radius:var(--r100);font-size:.8rem;font-weight:600;border:1.5px solid var(--border);background:var(--card);color:var(--textd);cursor:pointer;transition:all .2s;font-family:inherit;box-shadow:0 2px 8px var(--shadow)}
.filter-btn:hover,.filter-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}
.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}
.proj-card{background:var(--card);border:1.5px solid var(--border);border-radius:var(--r20);padding:1.75rem;box-shadow:0 4px 25px var(--shadow);transition:all .3s;display:flex;flex-direction:column;position:relative;overflow:hidden}
.proj-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-light));transform:scaleX(0);transition:transform .3s;transform-origin:left}
.proj-card:hover{transform:translateY(-8px);box-shadow:0 20px 60px var(--shadow2);border-color:var(--border2)}
.proj-card:hover::before{transform:scaleX(1)}
.proj-icon{width:48px;height:48px;border-radius:var(--r12);background:linear-gradient(135deg,rgba(16,185,129,.12),rgba(167,243,208,.3));border:1px solid var(--border2);display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:1rem}
.proj-title{font-size:1rem;font-weight:700;color:var(--text);margin-bottom:.2rem}
.proj-sub{font-size:.77rem;color:var(--accent);font-weight:600;margin-bottom:.75rem}
.proj-desc{font-size:.83rem;color:var(--textd);line-height:1.7;margin-bottom:1rem;flex:1}
.proj-metrics{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:.9rem}
.metric-badge{font-size:.7rem;padding:.25rem .65rem;background:rgba(16,185,129,.1);border:1px solid var(--border2);border-radius:var(--r100);color:var(--accent);font-weight:600}
.tags{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:1.25rem}
.tag{font-size:.7rem;padding:.25rem .65rem;background:var(--bg);border:1px solid var(--border);border-radius:var(--r100);color:var(--textd)}
.proj-links{display:flex;gap:.5rem}
.proj-btn{flex:1;text-align:center;padding:.5rem;border-radius:var(--r8);font-size:.78rem;font-weight:600;text-decoration:none;transition:all .2s;border:1.5px solid var(--border2);color:var(--textm);cursor:pointer;background:transparent;font-family:inherit}
.proj-btn.gh:hover{background:rgba(16,185,129,.08);color:var(--accent);border-color:var(--accent)}
.proj-btn.demo{background:var(--accent);color:#fff;border:none}
.proj-btn.demo:hover{background:#0ea371;transform:translateY(-1px)}

/* ===== SKILLS ===== */
#skills{padding:7rem 0}
.skills-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem;margin-top:3rem;position:relative;z-index:10}

/* Bento Card & Spotlight Glow */
.bento-card{position:relative;background:rgba(255,255,255,0.02);border-radius:var(--r20);padding:1px;overflow:hidden;transition:transform 0.1s ease}
body.dark-mode .bento-card{background:rgba(255,255,255,0.05)}
.bento-card::before{content:"";position:absolute;top:var(--mouse-y, -100px);left:var(--mouse-x, -100px);width:400px;height:400px;background:radial-gradient(circle, rgba(16,185,129,0.4) 0%, transparent 70%);transform:translate(-50%, -50%);opacity:0;transition:opacity 0.3s;pointer-events:none}
.skills-grid:hover .bento-card::before{opacity:1}

.bento-content{background:var(--card);border-radius:calc(var(--r20) - 1px);padding:1.75rem;height:100%;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);position:relative;z-index:2;display:flex;flex-direction:column}
.skill-cat-title{font-size:.9rem;font-weight:800;color:var(--text);margin-bottom:1.5rem;display:flex;align-items:center;gap:.6rem;letter-spacing:0.5px}
.skill-cat-icon{width:32px;height:32px;border-radius:var(--r8);background:rgba(16,185,129,.12);border:1px solid var(--border2);display:flex;align-items:center;justify-content:center;font-size:1rem;box-shadow:inset 0 0 10px rgba(16,185,129,0.1)}

/* Skill Tags */
.skill-tags{display:flex;flex-wrap:wrap;gap:0.7rem}
.skill-tag{font-size:0.85rem;font-weight:600;color:var(--textm);background:rgba(255,255,255,0.03);border:1px solid var(--border);border-radius:var(--r100);padding:0.4rem 1rem;display:flex;align-items:center;gap:0.4rem;transition:all 0.3s cubic-bezier(0.25,1,0.5,1);cursor:pointer;position:relative;overflow:hidden}
body.dark-mode .skill-tag{background:rgba(0,0,0,0.2)}
.skill-tag i{font-style:normal;font-size:1rem}
.skill-tag.highlight{border-color:rgba(16,185,129,0.4);background:rgba(16,185,129,0.05)}
.skill-tag .badge{font-size:0.6rem;background:var(--accent);color:#fff;padding:0.1rem 0.4rem;border-radius:var(--r100);text-transform:uppercase;font-weight:800;letter-spacing:0.5px}

/* Hover & Group Highlights */
.skill-tag:hover{color:var(--text);border-color:var(--accent);background:rgba(16,185,129,.1);transform:translateY(-2px);box-shadow:0 6px 15px rgba(16,185,129,0.15)}

/* ===== ACHIEVEMENTS ===== */
#achievements{padding:7rem 0;background:var(--bg)}
.ach-list{margin-top:4rem;border-top:1.5px solid var(--border)}
.ach-row{border-bottom:1.5px solid var(--border);padding:2.5rem 0;cursor:pointer;transition:all 0.4s;overflow:hidden;position:relative}
.ach-row-header{display:flex;align-items:center;justify-content:space-between;transition:transform 0.4s cubic-bezier(0.25,1,0.5,1)}
.ach-row-title{font-size:clamp(1.5rem,3.2vw,2.4rem);font-weight:800;color:var(--text);transition:color 0.4s,transform 0.4s;letter-spacing:-1px}
.ach-row-icon{font-size:clamp(1.5rem,3vw,2.2rem);opacity:0.3;transition:all 0.4s;transform:translateX(-20px)}
.ach-row-body{max-height:0;opacity:0;transition:all 0.5s cubic-bezier(0.25,1,0.5,1);color:var(--textd);font-size:1.05rem;line-height:1.7;max-width:800px;margin-top:0}
.ach-row:hover .ach-row-header{transform:translateX(20px)}
.ach-row:hover .ach-row-title{color:var(--accent)}
.ach-row:hover .ach-row-icon{opacity:1;transform:translateX(0)}
.ach-row:hover .ach-row-body{max-height:180px;opacity:1;margin-top:1.5rem}

/* ===== EDUCATION ===== */
#education{padding:7rem 0}
.edu-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem;margin-top:3rem}
.edu-card{background:var(--card);border:1.5px solid var(--border);border-radius:var(--r20);padding:2rem;box-shadow:0 4px 25px var(--shadow);transition:all .3s;position:relative;overflow:hidden}
.edu-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-light));transform:scaleX(0);transition:transform .4s;transform-origin:left}
.edu-card:hover{border-color:var(--border2);transform:translateY(-4px);box-shadow:0 12px 40px var(--shadow2)}
.edu-card:hover::after{transform:scaleX(1)}
.edu-badge{display:inline-block;padding:.3rem .85rem;background:rgba(16,185,129,.1);border-radius:var(--r100);font-size:.75rem;color:var(--accent);border:1px solid var(--border2);font-weight:600;margin-bottom:1rem}
.edu-name{font-size:1.1rem;font-weight:700;color:var(--text);margin-bottom:.35rem}
.edu-sub{font-size:.85rem;color:var(--textm);margin-bottom:.5rem}
.edu-detail{font-size:.8rem;color:var(--textd)}
.cgpa-big{font-size:2.8rem;font-weight:800;color:var(--accent);margin:1rem 0 .25rem}
.cert-list{display:flex;flex-direction:column;gap:.75rem;margin-top:1rem}
.cert-item{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;background:var(--bg);border-radius:var(--r8);border:1px solid var(--border)}
.cert-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex-shrink:0}
.cert-name{font-size:.85rem;color:var(--textm);font-weight:500}
.cert-year{font-size:.75rem;color:var(--textd);margin-left:auto;font-weight:600}

/* ===== CONTACT ===== */
#contact{padding:7rem 0 4rem}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start;margin-top:3rem}
.contact-info h3{font-size:1.4rem;font-weight:700;color:var(--text);margin-bottom:.75rem}
.contact-info p{color:var(--textd);font-size:.9rem;line-height:1.7;margin-bottom:2rem}
.contact-links{display:flex;flex-direction:column;gap:.75rem}
.contact-link{display:flex;align-items:center;gap:.75rem;padding:0.8rem 1rem;background:var(--card);border:1.5px solid var(--border);border-radius:var(--r12);color:var(--textm);text-decoration:none;font-size:.85rem;transition:all .25s;box-shadow:0 2px 10px var(--shadow)}
.contact-link:hover{border-color:var(--accent);color:var(--accent);transform:translateX(4px);box-shadow:0 6px 25px var(--shadow2)}
.contact-link svg{width:18px;height:18px;flex-shrink:0;fill:currentColor}
.contact-form{background:var(--card);border:1.5px solid var(--border);border-radius:var(--r20);padding:2rem;box-shadow:0 8px 40px var(--shadow)}
.form-group{margin-bottom:1.25rem}
.form-label{display:block;font-size:.78rem;font-weight:700;color:var(--textm);margin-bottom:.5rem;letter-spacing:.5px;text-transform:uppercase}
.form-input,.form-textarea{width:100%;background:var(--bg);border:1.5px solid var(--border);border-radius:var(--r8);padding:.75rem 1rem;color:var(--text);font-family:inherit;font-size:.875rem;transition:border-color .2s;outline:none;resize:vertical}
.form-input:focus,.form-textarea:focus{border-color:var(--accent);background:#fff}
.form-textarea{min-height:120px}
.form-submit{width:100%;padding:.9rem;border-radius:var(--r100);background:var(--accent);color:#fff;font-weight:700;font-size:.9rem;border:none;cursor:pointer;transition:all .25s;font-family:inherit;box-shadow:0 4px 20px var(--shadow2)}
#toast-container{position:fixed;top:1.5rem;right:1.5rem;display:flex;flex-direction:column;gap:.75rem;z-index:99999;pointer-events:none}
.toast{min-width:240px;max-width:340px;padding:1rem 1.1rem;border-radius:var(--r12);background:rgba(255,255,255,0.98);color:var(--text);display:flex;align-items:center;gap:.75rem;box-shadow:0 18px 40px rgba(15,23,42,.12);transform:translateX(20px);opacity:0;transition:transform .25s ease,opacity .25s ease;pointer-events:auto}
.toast.show{opacity:1;transform:translateX(0)}
.toast.error{background:#FEE2E2;color:#991B1B}
.toast-icon{font-size:1.2rem}

/* Footer */
footer{border-top:1px solid var(--border);padding:2rem;text-align:center;color:var(--textd);font-size:.82rem;position:relative;z-index:1}

/* ===== CERTIFICATIONS ===== */
#certifications{padding:7rem 0;background:linear-gradient(180deg,transparent,rgba(167,243,208,.1),transparent)}
.cert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1.5rem;margin-top:3rem}
.cert-card{background:var(--card);border:1.5px solid var(--border);border-radius:var(--r20);overflow:hidden;box-shadow:0 4px 20px var(--shadow);transition:all .3s;cursor:pointer;display:flex;flex-direction:column;height:100%}
.cert-card:hover{transform:translateY(-8px);box-shadow:0 16px 50px var(--shadow2);border-color:var(--border2)}
.cert-image-wrap{width:100%;height:200px;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;padding:1rem;border-bottom:1px solid var(--border);background:linear-gradient(135deg,rgba(167,243,208,.05),rgba(16,185,129,.03));transition:background .3s}
.cert-image-wrap .img-placeholder{display:none}
.cert-image{width:100%;height:100%;object-fit:cover;border-bottom-left-radius:var(--r20);border-bottom-right-radius:var(--r20);transition:transform .45s,opacity .35s;display:block;opacity:0}
.cert-image.loaded{opacity:1}
.cert-logo-large{width:calc(100% - 2rem);height:calc(100% - 2rem);object-fit:contain;border-radius:0;padding:1rem;background:transparent;box-shadow:none;transition:transform .25s,opacity .2s;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(1);z-index:5;opacity:1;display:block;pointer-events:none}
.cert-card:hover .cert-image{transform:scale(1.06)}
.cert-card:hover .cert-logo-large{transform:translate(-50%,-50%) scale(1.08);opacity:1}
.cert-info{padding:1.5rem;flex:1;display:flex;flex-direction:column}
.cert-meta{display:flex;align-items:center;gap:.85rem;margin-bottom:.85rem}
.cert-logo{width:42px;height:42px;object-fit:contain;border-radius:14px;background:rgba(16,185,129,.08);border:1px solid var(--border);padding:.45rem}
.cert-title{font-size:.95rem;font-weight:700;color:var(--text);margin-bottom:.5rem}
.cert-org{font-size:.8rem;color:var(--accent);font-weight:600;margin-bottom:.75rem}
.cert-year{font-size:.75rem;color:var(--textd);margin-top:auto;padding-top:.75rem;border-top:1px solid var(--border)}
.cert-overlay{position:absolute;inset:0;background:rgba(16,185,129,.9);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;opacity:0;transition:opacity .3s;z-index:10}
.cert-card:hover .cert-overlay{opacity:1}

/* ===== INTERNSHIP CERTIFICATES ===== */
#internships{padding:7rem 0}
.internship-timeline{position:relative;margin-top:3rem;padding-left:2rem}
.internship-timeline::before{content:'';position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(180deg,transparent,var(--accent-light),var(--accent),var(--accent-light),transparent)}
.intern-item{position:relative;margin-bottom:2.5rem;padding-left:2.5rem}
.intern-dot{position:absolute;left:-2.5rem;top:.5rem;width:14px;height:14px;border-radius:50%;background:var(--accent);border:3px solid var(--bg);box-shadow:0 0 0 4px rgba(16,185,129,.2);transition:all .3s}
.intern-item:hover .intern-dot{box-shadow:0 0 0 8px rgba(16,185,129,.12)}
.intern-card{background:var(--card);border:1.5px solid var(--border);border-radius:var(--r20);padding:2rem;box-shadow:0 4px 20px var(--shadow);transition:all .3s;display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:center}
.intern-card:hover{border-color:var(--border2);transform:translateX(6px);box-shadow:0 8px 35px var(--shadow2)}
.intern-info h3{font-size:1.1rem;font-weight:700;color:var(--text);margin-bottom:.5rem}
.intern-company{font-size:.85rem;color:var(--accent);font-weight:600;margin-bottom:.75rem}
.intern-period{display:inline-block;padding:.3rem .85rem;background:rgba(16,185,129,.1);border-radius:var(--r100);font-size:.72rem;color:var(--accent);border:1px solid var(--border2);font-weight:600;margin-top:.5rem}
.intern-cert-img{position:relative;width:100%;height:250px;border-radius:var(--r12);overflow:hidden;border:1.5px solid var(--border);background:rgba(16,185,129,.08)}
.intern-cert-img .img-placeholder{position:absolute;inset:0;z-index:0;height:100%}
.intern-cert-img img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .4s,transform .45s;display:block}
.intern-cert-img img.loaded{opacity:1}
.intern-card:hover .intern-cert-img img{transform:scale(1.06)}
.intern-cert-img img.loaded ~ .img-placeholder{display:none}
.intern-btn{display:inline-block;margin-top:1rem;padding:.6rem 1.5rem;background:var(--accent);color:#fff;text-decoration:none;border-radius:var(--r100);font-size:.85rem;font-weight:600;transition:all .3s;border:none;cursor:pointer;font-family:inherit}
.intern-btn:hover{background:#0ea371;transform:translateY(-2px);box-shadow:0 4px 15px var(--shadow2)}

/* ===== GALLERY ===== */
#gallery{padding:7rem 0;background:linear-gradient(180deg,transparent,rgba(167,243,208,.08),transparent)}
.gallery-masonry{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:200px;grid-auto-flow:dense;gap:1.25rem;margin-top:3rem}
.gallery-item{background:var(--card);border:1.5px solid var(--border);border-radius:var(--r12);overflow:hidden;cursor:pointer;box-shadow:0 4px 20px var(--shadow);transition:transform 0.3s,box-shadow 0.3s;position:relative}
.gallery-item:hover{transform:translateY(-4px) scale(1.02);box-shadow:0 12px 35px var(--shadow2);z-index:2}
.gallery-item:nth-child(11n+1){grid-column:span 2;grid-row:span 2}
.gallery-item:nth-child(11n+2){grid-column:span 2;grid-row:span 1}
.gallery-item:nth-child(11n+3){grid-column:span 1;grid-row:span 2}
.gallery-item:nth-child(11n+4){grid-column:span 1;grid-row:span 1}
.gallery-item:nth-child(11n+5){grid-column:span 2;grid-row:span 2}
.gallery-item:nth-child(11n+6){grid-column:span 1;grid-row:span 1}
.gallery-item:nth-child(11n+7){grid-column:span 2;grid-row:span 1}
.gallery-item:nth-child(11n+8){grid-column:span 1;grid-row:span 2}
.gallery-item:nth-child(11n+9){grid-column:span 2;grid-row:span 2}
.gallery-item:nth-child(11n+10){grid-column:span 1;grid-row:span 1}
.gallery-item:nth-child(11n+11){grid-column:span 1;grid-row:span 1}
.gallery-img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover;opacity:0;transition:transform 0.6s cubic-bezier(0.25,1,0.5,1),opacity 0.4s;display:block}
.gallery-img.loaded{opacity:1}
.gallery-item:hover .gallery-img{transform:scale(1.05)}
.gallery-overlay{display:none}

/* ===== LIGHTBOX ===== */
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.9);display:none;align-items:center;justify-content:center;z-index:2000;padding:2rem}
.lightbox.active{display:flex;animation:fadeIn .3s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.lightbox-content{position:relative;max-width:90vw;max-height:90vh;border-radius:var(--r20);overflow:hidden;box-shadow:0 20px 80px rgba(0,0,0,.5);animation:slideIn .3s ease}
@keyframes slideIn{from{transform:scale(0.8);opacity:0}to{transform:scale(1);opacity:1}}
.lightbox-img{width:100%;height:100%;object-fit:contain;max-height:85vh}
.lightbox-close{position:absolute;top:1.5rem;right:1.5rem;width:48px;height:48px;background:rgba(255,255,255,.1);border:none;color:#fff;font-size:2rem;cursor:pointer;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .2s;z-index:2001}
.lightbox-close:hover{background:rgba(255,255,255,.3);transform:rotate(90deg)}
.lightbox-info{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(180deg,rgba(0,0,0,0),rgba(0,0,0,.9));padding:3rem 2rem 2rem;color:#fff;text-align:center}
.lightbox-title{font-size:1.2rem;font-weight:700;margin-bottom:.5rem}
.lightbox-subtitle{font-size:.9rem;color:rgba(255,255,255,.7)}

/* Mouse glow */
#glow{position:fixed;pointer-events:none;width:500px;height:500px;border-radius:50%;background:radial-gradient(circle,rgba(16,185,129,.06),transparent 70%);transform:translate(-50%,-50%);z-index:0}

@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;text-align:center}
  #avatar-wrap{margin:2rem auto 0}
  .btn-group{justify-content:center}
  .about-grid{grid-template-columns:1fr}
  .edu-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .nav-links{display:none}
  .hamburger{display:flex}
  .intern-card{grid-template-columns:1fr;gap:1rem}
  .gallery-masonry{display:grid;grid-template-columns:repeat(2,1fr);grid-auto-rows:180px;grid-auto-flow:dense}
  .gallery-item{grid-column:span 1 !important;grid-row:span 1 !important}
  .gallery-item:nth-child(5n+1){grid-column:span 2 !important;grid-row:span 2 !important}
  .gallery-item:nth-child(5n+4){grid-column:span 2 !important;grid-row:span 1 !important}
  .ach-row{padding:1.5rem 0}
  .ach-row:hover .ach-row-header{transform:translateX(10px)}
}
@media(max-width:560px){
  .cert-image-wrap{height:160px}
  .cert-logo-large{width:48%;max-width:160px}
  .gallery-masonry{grid-template-columns:1fr;grid-auto-rows:220px}
  .gallery-item{grid-column:span 1 !important;grid-row:span 1 !important}
}