/* Madan Tiwari portfolio — editable design system */
:root{--bg:#080d18;--surface:#101827;--surface-2:#141f32;--text:#edf3ff;--muted:#9aa9bf;--line:rgba(173,194,226,.14);--accent:#78e4d2;--accent-2:#8c9eff;--shadow:0 24px 80px rgba(0,0,0,.28);--font:'DM Sans',sans-serif;--display:'Space Grotesk',sans-serif}
body.light{--bg:#f5f7fb;--surface:#fff;--surface-2:#edf1f8;--text:#142036;--muted:#5c6b82;--line:rgba(35,57,91,.14);--shadow:0 24px 70px rgba(38,56,88,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.65;transition:background .3s,color .3s}a{color:inherit;text-decoration:none}button{font:inherit}.container{width:min(1140px,calc(100% - 48px));margin:auto}.section{padding:110px 0;position:relative}.progress-bar{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--accent),var(--accent-2));z-index:1000}.site-header{position:sticky;top:0;z-index:100;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav{height:76px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:11px;font-family:var(--display);font-weight:700;font-size:17px}.brand-mark{display:grid;place-items:center;width:36px;height:36px;border:1px solid var(--accent);color:var(--accent);border-radius:11px;font-size:12px}.brand-dot{color:var(--accent)}.nav-links{display:flex;align-items:center;gap:30px;color:var(--muted);font-size:13px;font-weight:600}.nav-links a:hover{color:var(--accent)}.theme-toggle,.menu-toggle{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:12px;width:39px;height:39px;cursor:pointer}.menu-toggle{display:none}.hero{min-height:calc(100vh - 76px);display:flex;align-items:center;padding:90px 0 105px;overflow:hidden;background:radial-gradient(ellipse at 78% 40%,rgba(100,124,255,.12),transparent 40%),radial-gradient(ellipse at 12% 10%,rgba(120,228,210,.08),transparent 32%)}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:60px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;color:var(--accent);margin:0 0 20px}.status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 5px rgba(120,228,210,.1);margin-right:9px}.intro{color:var(--muted);margin:0;font-size:20px}.hero h1{font:700 clamp(54px,7vw,88px)/1.08 var(--display);letter-spacing:-4px;margin:5px 0 15px}.gradient-text{background:linear-gradient(100deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}.hero h2{font:500 clamp(22px,3vw,32px)/1.35 var(--display);margin:0 0 22px;letter-spacing:-.8px}.typed-wrap{color:var(--accent)}.cursor{animation:blink 1s steps(2,start) infinite}.hero-description{font-size:16px;color:var(--muted);max-width:560px;line-height:1.9}.hero-actions{display:flex;gap:13px;margin:30px 0 40px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:15px;padding:13px 20px;border-radius:12px;font-size:13px;font-weight:700;transition:transform .2s,box-shadow .2s;cursor:pointer;border:1px solid transparent}.btn:hover{transform:translateY(-3px)}.btn-primary{background:var(--accent);color:#08131a;box-shadow:0 8px 28px rgba(120,228,210,.15)}.btn-secondary{border-color:var(--line);background:var(--surface);color:var(--text)}.hero-meta{display:flex;flex-wrap:wrap;gap:23px;color:var(--muted);font-size:11px}.hero-meta b{color:var(--accent);margin-right:7px;font-family:var(--display)}.hero-visual{min-height:480px;display:grid;place-items:center;position:relative}.orbit{position:absolute;border:1px solid var(--line);border-radius:50%;aspect-ratio:1}.orbit-one{width:430px;max-width:100%;animation:rotate 36s linear infinite}.orbit-two{width:350px;max-width:85%;border-style:dashed;animation:rotate 45s linear infinite reverse}.profile-card{width:min(350px,90%);position:relative;z-index:2;padding:22px 25px 24px;background:linear-gradient(145deg,var(--surface-2),var(--surface));border:1px solid rgba(140,158,255,.25);border-radius:22px;box-shadow:var(--shadow);transform:rotate(2deg)}.profile-top{display:flex;align-items:center;gap:9px;font-size:9px;color:var(--muted)}.window-dots{display:flex;gap:4px}.window-dots i{width:6px;height:6px;border-radius:50%;background:#fa7d83}.window-dots i:nth-child(2){background:#f4c66b}.window-dots i:nth-child(3){background:var(--accent)}.mono{font-family:monospace;margin-right:auto}.live-label{color:var(--accent);font-size:8px}.avatar{width:84px;height:84px;display:grid;place-items:center;margin:28px auto 15px;border-radius:26px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#091321;font:700 30px var(--display);box-shadow:0 12px 35px rgba(120,228,210,.15)}.profile-card h3{text-align:center;font:600 23px var(--display);margin:0}.profile-role{text-align:center;color:var(--muted);font-size:11px;margin:5px 0 20px}.profile-divider{height:1px;background:var(--line);margin-bottom:15px}.profile-row{display:flex;justify-content:space-between;gap:10px;font-size:10px;padding:7px 0;color:var(--muted)}.profile-row strong{color:var(--text);font-weight:600;text-align:right}.terminal{margin-top:20px;padding:12px 14px;background:var(--bg);border:1px solid var(--line);border-radius:10px;font:10px/1.6 monospace}.terminal p{margin:0}.terminal p span{color:var(--accent)}.terminal-output{color:var(--muted);padding-left:12px}.blink{color:var(--accent);animation:blink 1s steps(2,start) infinite}.floating-chip{position:absolute;z-index:3;background:var(--surface);border:1px solid var(--line);padding:10px 15px;border-radius:12px;font-size:11px;font-weight:700;box-shadow:var(--shadow);animation:float 5s ease-in-out infinite}.chip-network{top:15%;left:0}.chip-security{right:-2%;top:35%;animation-delay:-1.7s}.chip-support{bottom:13%;left:6%;animation-delay:-3s}.scroll-cue{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:10px;color:var(--muted);font-size:10px;letter-spacing:1px}.scroll-cue span{height:25px;width:15px;border:1px solid var(--muted);border-radius:10px;position:relative}.scroll-cue span:after{content:"";position:absolute;top:5px;left:5px;width:3px;height:5px;background:var(--accent);border-radius:3px;animation:scroll 1.5s infinite}.section-heading{max-width:720px;margin-bottom:48px}.section-heading h2,.contact-copy h2{font:600 clamp(32px,4vw,48px)/1.2 var(--display);letter-spacing:-1.8px;margin:0}.muted{color:var(--muted)}.section-subtitle{color:var(--muted);max-width:600px;margin:18px 0 0}.about-section{background:var(--surface)}.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:80px;align-items:start}.about-copy p{color:var(--muted);font-size:14px;line-height:1.9}.about-copy .lead{font-size:20px;line-height:1.65;color:var(--text);font-weight:500}.quick-facts{display:flex;gap:35px;margin-top:32px;padding-top:25px;border-top:1px solid var(--line)}.quick-facts div{display:flex;flex-direction:column;gap:4px}.quick-facts strong{font:600 18px var(--display);color:var(--accent)}.quick-facts span{font-size:10px;color:var(--muted)}.about-panel{background:var(--bg);border:1px solid var(--line);border-radius:20px;padding:28px}.panel-header{display:flex;gap:12px;align-items:center;font:600 16px var(--display);padding-bottom:22px;border-bottom:1px solid var(--line)}.panel-icon{color:var(--accent);font-size:22px}.value-item{display:flex;gap:17px;padding:23px 0;border-bottom:1px solid var(--line)}.value-item:last-child{border:0;padding-bottom:0}.value-number{font:600 12px var(--display);color:var(--accent);padding-top:3px}.value-item h3{font:600 15px var(--display);margin:0 0 5px}.value-item p{color:var(--muted);font-size:12px;margin:0;line-height:1.7}.skills-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.skill-card{background:var(--surface);border:1px solid var(--line);padding:25px 22px;border-radius:18px;transition:transform .25s,border-color .25s}.skill-card:hover,.project-card:hover{transform:translateY(-6px);border-color:rgba(120,228,210,.45)}.skill-icon{width:44px;height:44px;display:grid;place-items:center;border-radius:13px;background:rgba(120,228,210,.09);color:var(--accent);font-size:22px;margin-bottom:20px}.skill-card h3{font:600 17px var(--display);margin:0 0 7px}.skill-card>p{color:var(--muted);font-size:12px;margin:0 0 18px}.tags,.project-tags{display:flex;flex-wrap:wrap;gap:7px}.tags span,.project-tags span{background:var(--surface-2);border:1px solid var(--line);padding:5px 8px;border-radius:7px;font-size:9px;color:var(--muted)}.disclaimer{color:var(--muted);font-size:11px;margin-top:22px}.projects-section{background:var(--surface)}.project-filters{display:flex;gap:9px;flex-wrap:wrap;margin:-15px 0 28px}.filter-btn{padding:9px 15px;border-radius:9px;border:1px solid var(--line);background:transparent;color:var(--muted);font-size:11px;cursor:pointer}.filter-btn.active,.filter-btn:hover{background:var(--accent);color:#08131a;border-color:var(--accent)}.projects-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.project-card{background:var(--bg);border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:transform .25s,border-color .25s}.project-card.hidden{display:none}.project-art{height:185px;position:relative;overflow:hidden;display:grid;place-items:center;background:linear-gradient(135deg,#101b31,#17294a)}.art-label{position:absolute;top:16px;left:18px;font:10px monospace;letter-spacing:1.5px;color:#9eafd0}.network-map{display:flex;align-items:center;gap:8px}.network-map i{font:700 10px monospace;font-style:normal;padding:13px 10px;border:1px solid #78e4d2;border-radius:8px;color:#78e4d2;background:#102c3a}.network-map b{height:1px;width:17px;background:#78e4d2}.art-security{background:radial-gradient(circle at center,#253b63,#10182a)}.shield{font-size:74px;color:#8c9eff;text-shadow:0 0 40px #8c9eff66}.scan-line{position:absolute;left:0;right:0;height:1px;background:#78e4d2;box-shadow:0 0 15px #78e4d2;animation:scan 4s linear infinite}.scan-code{position:absolute;bottom:15px;right:17px;color:#78e4d2;font:9px monospace;letter-spacing:1px}.art-systems{background:linear-gradient(135deg,#132b35,#10182a)}.server-stack{display:grid;gap:8px;width:110px}.server-stack i{height:28px;border:1px solid #78e4d2;border-radius:7px;background:linear-gradient(90deg,#173c48,#1a2a3d);position:relative}.server-stack i:before{content:"";position:absolute;left:10px;top:10px;width:5px;height:5px;background:#78e4d2;border-radius:50%;box-shadow:12px 0 #8c9eff}.server-caption{position:absolute;bottom:15px;color:#9cb9c5;font:9px monospace;letter-spacing:1px}.project-content{padding:23px}.project-meta{display:flex;justify-content:space-between;font:9px monospace;letter-spacing:1px;color:var(--accent)}.project-meta span+span{color:var(--muted)}.project-content h3{font:600 18px/1.35 var(--display);margin:13px 0 10px}.project-content p{font-size:12px;color:var(--muted);line-height:1.8;min-height:88px}.project-tags{margin:15px 0 18px}.text-link{border:0;background:none;padding:0;color:var(--accent);font-size:12px;font-weight:700;cursor:pointer}.text-link span{margin-left:6px}.project-note{display:flex;align-items:center;gap:15px;margin-top:25px;padding:17px 20px;border:1px dashed var(--line);border-radius:12px;color:var(--muted);font-size:12px}.project-note>span{font-size:23px;color:var(--accent)}.project-note p{margin:0}.project-note strong{color:var(--text)}.timeline{max-width:820px;margin-left:12px;border-left:1px solid var(--line);padding-left:35px}.timeline-item{position:relative;display:grid;grid-template-columns:155px 1fr;gap:25px;margin-bottom:25px}.timeline-marker{position:absolute;left:-41px;top:8px;width:11px;height:11px;border:2px solid var(--accent);background:var(--bg);border-radius:50%;box-shadow:0 0 0 5px var(--bg)}.timeline-date{font:10px monospace;letter-spacing:1px;color:var(--muted);padding-top:5px}.timeline-card{background:var(--surface);border:1px solid var(--line);border-radius:15px;padding:25px}.timeline-type{font-size:9px;letter-spacing:1.5px;color:var(--accent);font-weight:700}.timeline-card h3{font:600 19px var(--display);margin:8px 0}.timeline-place{color:var(--muted);font-size:12px;margin:0 0 13px!important}.timeline-card p{font-size:12px;color:var(--muted);line-height:1.8;margin:0}.timeline-card-current{border-color:rgba(120,228,210,.3)}.contact-section{background:var(--surface);overflow:hidden}.contact-container{display:grid;grid-template-columns:1fr .75fr;gap:90px;align-items:center}.contact-copy h2{font-size:clamp(38px,5vw,58px)}.contact-copy>p:not(.eyebrow){color:var(--muted);max-width:480px;font-size:14px;line-height:1.9;margin:22px 0 30px}.contact-details{display:grid;gap:10px;max-width:470px}.contact-line{display:flex;align-items:center;gap:15px;padding:15px;border:1px solid var(--line);border-radius:12px;background:var(--bg)}.contact-line>span:first-child{display:grid;place-items:center;width:37px;height:37px;border-radius:10px;background:var(--surface-2);color:var(--accent);font-weight:700}.contact-line>span:nth-child(2){display:flex;flex-direction:column;font-size:12px;font-weight:600}.contact-line small{font-size:9px;color:var(--muted);letter-spacing:1px}.contact-line b{margin-left:auto;color:var(--accent)}.contact-card{padding:32px;background:var(--bg);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.contact-card-icon{font-size:25px;color:var(--accent);margin-bottom:20px}.contact-card h3{font:600 24px var(--display);margin:0 0 10px}.contact-card>p:not(.eyebrow){font-size:13px;color:var(--muted);line-height:1.8}.availability{font-size:11px;color:var(--muted);margin:22px 0}.full-btn{width:100%}.footer{padding:25px 0;border-top:1px solid var(--line)}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}.footer p,.footer>div>span{font-size:10px;color:var(--muted)}.back-to-top{position:fixed;right:22px;bottom:22px;width:42px;height:42px;border:1px solid var(--line);border-radius:13px;background:var(--surface);color:var(--accent);font-size:20px;cursor:pointer;opacity:0;pointer-events:none;transform:translateY(10px);transition:.25s;z-index:80}.back-to-top.visible{opacity:1;pointer-events:auto;transform:translateY(0)}.project-modal{width:min(540px,calc(100% - 30px));padding:0;background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.project-modal::backdrop{background:rgba(0,0,0,.7);backdrop-filter:blur(5px)}.modal-inner{padding:35px}.modal-close{float:right;border:1px solid var(--line);background:var(--bg);color:var(--text);width:35px;height:35px;border-radius:10px;font-size:22px;cursor:pointer}.modal-inner h2{font:600 26px var(--display);line-height:1.3}.modal-inner>p:not(.eyebrow){font-size:14px;line-height:1.9;color:var(--muted);margin-bottom:25px}.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}.reveal.visible{opacity:1;transform:translateY(0)}@keyframes blink{to{visibility:hidden}}@keyframes rotate{to{transform:rotate(360deg)}}@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}@keyframes scroll{0%{opacity:0;transform:translateY(0)}50%{opacity:1}100%{opacity:0;transform:translateY(9px)}}@keyframes scan{0%{top:25%}100%{top:85%}}@media(max-width:1000px){.hero-grid{gap:25px}.skills-grid{grid-template-columns:repeat(2,1fr)}.projects-grid{grid-template-columns:repeat(2,1fr)}.contact-container{gap:40px}.hero-visual{min-height:430px}.chip-security{right:0}}@media(max-width:720px){.container{width:min(100% - 34px,560px)}.section{padding:78px 0}.nav{height:68px}.menu-toggle{display:grid;align-content:center;gap:5px;padding:10px}.menu-toggle span{display:block;height:2px;width:17px;background:var(--text);border-radius:3px}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:22px 25px 26px;background:var(--surface);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:18px}.nav-links.open{display:flex}.theme-toggle{width:100%}.hero{padding:70px 0 90px}.hero-grid{grid-template-columns:1fr;gap:30px}.hero h1{letter-spacing:-2.5px}.hero-visual{min-height:430px}.orbit-one{width:360px}.orbit-two{width:290px}.profile-card{max-width:330px}.chip-network{left:0;top:12%}.chip-security{right:0;top:34%}.chip-support{bottom:8%;left:0}.scroll-cue{display:none}.about-grid,.contact-container{grid-template-columns:1fr;gap:35px}.quick-facts{gap:20px;justify-content:space-between}.skills-grid,.projects-grid{grid-template-columns:1fr}.project-content p{min-height:0}.timeline{padding-left:25px;margin-left:8px}.timeline-item{grid-template-columns:1fr;gap:10px}.timeline-marker{left:-31px}.timeline-date{font-size:9px}.timeline-card{padding:21px}.contact-card{padding:27px}.footer-inner{flex-wrap:wrap;justify-content:center;text-align:center}.footer-inner p{width:100%;order:3}.section-heading h2{letter-spacing:-1px}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}.reveal{opacity:1;transform:none}}