:root{--bg:#0a0a0f;--bg2:#111118;--bg3:#1a1a24;--ink:#f0ece8;--ink2:#c8c0b8;--muted:#6a6260;--border:rgba(255,255,255,.08);--primary:#452829;--accent:#e8d1c5;--glow:rgba(232,209,197,.15);--card:rgba(255,255,255,.03);--glass:rgba(255,255,255,.05);--serif:'Cormorant Garamond',Georgia,serif;--mono:'IBM Plex Mono',monospace;--sys:-apple-system,BlinkMacSystemFont,'Helvetica Neue',sans-serif;--ease:cubic-bezier(.25,.46,.45,.94);--spring:cubic-bezier(.34,1.56,.64,1)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sys);background:var(--bg);color:var(--ink);overflow-x:hidden;-webkit-font-smoothing:antialiased;line-height:1.6}
img{display:block;max-width:100%}
button,a{cursor:pointer;text-decoration:none;color:inherit}
ul{list-style:none}
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--primary);border-radius:3px}

/* LOADER */
#loader{position:fixed;inset:0;z-index:99999;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;transition:opacity .6s,visibility .6s}
#loader.hide{opacity:0;visibility:hidden}
.loader-ring{width:48px;height:48px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}
.loader-text{margin-top:1rem;font-family:var(--mono);font-size:.7rem;letter-spacing:2px;color:var(--muted)}
@keyframes spin{to{transform:rotate(360deg)}}

/* SCROLL PROGRESS */
#scroll-progress{position:fixed;top:0;left:0;height:2px;background:linear-gradient(90deg,var(--primary),var(--accent));z-index:100000;width:0;transition:width .1s}

/* NAV */
nav{position:fixed;top:0;left:0;right:0;z-index:9999;height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 max(5%,20px);background:rgba(10,10,15,.85);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--border);transition:all .3s}
nav.scrolled{height:48px;background:rgba(10,10,15,.95)}
.logo{font-family:var(--serif);font-size:1rem;font-weight:600;letter-spacing:.5px;background:linear-gradient(135deg,var(--ink),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav-c{display:flex;gap:clamp(1rem,3vw,2rem);position:absolute;left:50%;transform:translateX(-50%)}
.nav-c a{font-size:.78rem;color:var(--muted);transition:color .3s;position:relative}
.nav-c a:hover,.nav-c a.active{color:var(--accent)}
.nav-c a.active::after{content:'';position:absolute;bottom:-4px;left:0;right:0;height:1px;background:var(--accent)}
.nav-r{display:flex;align-items:center;gap:.8rem}
.nav-cta{font-size:.73rem;font-weight:500;background:linear-gradient(135deg,var(--primary),#6b3a3b);color:#fff;padding:.5rem 1.2rem;border-radius:100px;border:none;transition:all .3s;position:relative;overflow:hidden}
.nav-cta::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,#6b3a3b,var(--primary));opacity:0;transition:opacity .3s}
.nav-cta:hover::before{opacity:1}
.nav-cta span{position:relative;z-index:1}
.ham{display:none;flex-direction:column;gap:5px;background:none;border:none;padding:4px}
.ham span{display:block;width:20px;height:1.5px;background:var(--ink);border-radius:2px;transition:all .3s}

/* MOBILE DRAWER */
.drawer{position:fixed;top:56px;left:0;right:0;bottom:0;background:rgba(10,10,15,.97);backdrop-filter:blur(20px);z-index:9998;display:none;flex-direction:column;align-items:center;justify-content:center;gap:2.5rem}
.drawer.open{display:flex}
.drawer a{font-family:var(--serif);font-size:1.8rem;font-weight:300;transition:color .2s}
.drawer a:hover{color:var(--accent)}

/* PAGES */
.page{display:none;padding-top:56px}
.page.active{display:block;animation:pageIn .5s var(--ease) both}
@keyframes pageIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}

/* HERO */
.hero{min-height:100svh;position:relative;display:flex;align-items:center;overflow:hidden}
#hero-canvas{position:absolute;inset:0;z-index:0}
.hero-content{position:relative;z-index:2;padding:0 clamp(2rem,8vw,8rem);max-width:720px}
.hero-tag{font-family:var(--mono);font-size:.62rem;letter-spacing:3px;color:var(--accent);margin-bottom:2rem;display:flex;align-items:center;gap:.8rem;opacity:0;animation:rise .8s var(--ease) .3s forwards}
.hero-tag::before{content:'';width:24px;height:1px;background:var(--accent)}
.hero-h1{font-family:var(--serif);font-size:clamp(2.8rem,6vw,5.5rem);font-weight:300;line-height:1.05;letter-spacing:-.5px;margin-bottom:1.5rem;opacity:0;animation:rise .9s var(--ease) .5s forwards}
.hero-h1 em{font-style:italic;font-weight:300;background:linear-gradient(135deg,var(--accent),#c4917e);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero-body{font-size:clamp(.88rem,1.5vw,.95rem);color:var(--muted);line-height:1.85;max-width:440px;margin-bottom:2.5rem;opacity:0;animation:rise .9s var(--ease) .7s forwards}
.hero-btns{display:flex;gap:.75rem;flex-wrap:wrap;opacity:0;animation:rise .9s var(--ease) .9s forwards}
.btn-a{font-size:.82rem;font-weight:500;background:linear-gradient(135deg,var(--primary),#6b3a3b);color:#fff;padding:.8rem 2rem;border-radius:100px;border:none;transition:all .3s;position:relative;overflow:hidden;box-shadow:0 4px 24px rgba(69,40,41,.3)}
.btn-a:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(69,40,41,.4)}
.btn-b{font-size:.82rem;background:var(--glass);color:var(--ink);padding:.8rem 2rem;border-radius:100px;border:1px solid var(--border);backdrop-filter:blur(10px);transition:all .3s}
.btn-b:hover{border-color:var(--accent);background:rgba(232,209,197,.08)}
.hero-steps{display:flex;align-items:center;margin-top:3.5rem;padding-top:2rem;border-top:1px solid var(--border);opacity:0;animation:rise .9s var(--ease) 1.1s forwards}
.hstep{display:flex;align-items:center;gap:.6rem}
.hstep-n{font-family:var(--mono);font-size:.62rem;width:28px;height:28px;border-radius:50%;border:1px solid var(--accent);color:var(--accent);display:flex;align-items:center;justify-content:center}
.hstep-t{font-size:.78rem;font-weight:500;color:var(--ink2)}
.hdiv{font-family:var(--mono);font-size:.7rem;color:var(--border);margin:0 .8rem}
.aqi-chip{position:absolute;bottom:10%;right:8%;z-index:3;background:rgba(255,255,255,.06);backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:20px;padding:1.2rem 1.6rem;box-shadow:0 8px 32px rgba(0,0,0,.3);animation:chipIn 1s var(--spring) 1.2s both}
.aqi-chip-label{font-family:var(--mono);font-size:.55rem;letter-spacing:2.5px;color:var(--muted)}
.aqi-chip-num{font-family:var(--serif);font-size:2.4rem;font-weight:600;background:linear-gradient(135deg,var(--accent),#c4917e);-webkit-background-clip:text;-webkit-text-fill-color:transparent;line-height:1;margin:.3rem 0}
.aqi-chip-status{font-family:var(--mono);font-size:.58rem;color:var(--accent);display:flex;align-items:center;gap:.4rem;--dot-color:#4ade80}
.aqi-chip-status::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--dot-color);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.know-aqi-btn{margin-top:.6rem;font-family:var(--mono);font-size:.55rem;letter-spacing:1px;color:var(--accent);background:rgba(232,209,197,.08);border:1px solid rgba(232,209,197,.2);border-radius:100px;padding:.35rem .8rem;cursor:pointer;transition:all .3s;display:inline-flex;align-items:center;gap:.3rem}
.know-aqi-btn:hover{background:rgba(232,209,197,.15);border-color:var(--accent)}
.know-aqi-btn.loading{pointer-events:none;opacity:.5}
.know-aqi-result{margin-top:.6rem;padding-top:.6rem;border-top:1px solid var(--border)}
.kar-row{display:flex;justify-content:space-between;align-items:center;padding:.15rem 0}
.kar-label{font-family:var(--mono);font-size:.5rem;letter-spacing:1.5px;color:var(--muted);text-transform:uppercase}
.kar-val{font-family:var(--serif);font-size:.9rem;font-weight:600;color:var(--ink)}
.kar-loc{font-family:var(--mono);font-size:.48rem;color:var(--muted);margin-top:.3rem;letter-spacing:.5px}
[data-theme="light"] .know-aqi-btn{color:#452829;background:rgba(69,40,41,.05);border-color:rgba(69,40,41,.2)}

/* SECTIONS */
.sec{padding:clamp(4rem,8vw,8rem) clamp(1.5rem,8%,9rem)}
.sec-alt{background:var(--bg2)}
.sec-dark{background:#080810}
.lbl{font-family:var(--mono);font-size:.6rem;letter-spacing:3px;color:var(--accent);display:block;margin-bottom:.9rem;text-transform:uppercase}
.h2{font-family:var(--serif);font-size:clamp(2rem,4vw,3.4rem);font-weight:300;letter-spacing:-.3px;line-height:1.1;margin-bottom:.8rem}
.h2 em{font-style:italic;background:linear-gradient(135deg,var(--accent),#c4917e);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.body-text{font-size:clamp(.85rem,1.5vw,.95rem);color:var(--muted);line-height:1.85;max-width:540px}
.hdr{margin-bottom:clamp(2.5rem,5vw,4rem)}
.hdr.c{text-align:center}
.hdr.c .body-text{margin:0 auto}

/* PROCESS GRID */
.proc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px}
.proc-cell{background:var(--glass);border:1px solid var(--border);backdrop-filter:blur(10px);padding:clamp(1.5rem,3vw,2.5rem);border-radius:16px;transition:all .4s;position:relative;overflow:hidden}
.proc-cell::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at var(--mx,50%) var(--my,50%),rgba(232,209,197,.08),transparent 60%);opacity:0;transition:opacity .3s}
.proc-cell:hover::before{opacity:1}
.proc-cell:hover{border-color:rgba(232,209,197,.2);transform:translateY(-4px)}
.proc-n{font-family:var(--mono);font-size:.58rem;color:var(--muted);margin-bottom:1.5rem;letter-spacing:1px}
.proc-icon{font-size:1.5rem;margin-bottom:.8rem}
.proc-title{font-family:var(--serif);font-size:clamp(1.1rem,2vw,1.35rem);font-weight:600;margin-bottom:.5rem;line-height:1.2}
.proc-desc{font-size:.82rem;color:var(--muted);line-height:1.8}

/* SERVICES */
.svc-wrap{display:flex;flex-direction:column;gap:1px}
.svc-row{display:grid;grid-template-columns:60px 220px 1fr 100px;align-items:start;gap:2rem;padding:clamp(1.2rem,3vw,2rem) 1rem;border-bottom:1px solid var(--border);transition:all .3s;border-radius:8px}
.svc-row:first-child{border-top:1px solid var(--border)}
.svc-row:hover{background:var(--glass);border-color:rgba(232,209,197,.15)}
.svc-idx{font-family:var(--mono);font-size:.6rem;color:var(--muted);padding-top:.2rem}
.svc-icon{font-size:1.1rem;margin-bottom:.4rem}
.svc-name{font-family:var(--serif);font-size:clamp(1rem,2vw,1.2rem);font-weight:600;line-height:1.2}
.svc-tag{display:inline-block;margin-top:.5rem;font-family:var(--mono);font-size:.55rem;letter-spacing:1px;color:var(--accent);border:1px solid rgba(232,209,197,.3);padding:.2rem .6rem;border-radius:100px}
.svc-body{font-size:.82rem;color:var(--muted);line-height:1.8}
.svc-arrow{font-size:1rem;color:var(--border);display:flex;align-items:flex-start;justify-content:flex-end;padding-top:.2rem;transition:all .3s}
.svc-row:hover .svc-arrow{color:var(--accent);transform:translateX(4px)}

/* MOSAIC */
.mosaic{display:grid;grid-template-columns:1.5fr 1fr 1fr;grid-template-rows:260px 260px;gap:4px}
.mos{overflow:hidden;position:relative;border-radius:12px}
.mos img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.mos:hover img{transform:scale(1.08)}
.mos:first-child{grid-row:1/3}
.mos-cap{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,.7));padding:.8rem 1rem;font-family:var(--mono);font-size:.58rem;letter-spacing:1.5px;color:rgba(255,255,255,.9);opacity:0;transition:opacity .3s;text-transform:uppercase}
.mos:hover .mos-cap{opacity:1}

/* INDUSTRIES - 3D TILT */
.ind-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.ind-cell{background:var(--glass);border:1px solid var(--border);border-radius:16px;padding:clamp(1.2rem,2.5vw,2rem);display:grid;grid-template-columns:80px 1fr;gap:1.5rem;align-items:start;transition:all .4s;transform-style:preserve-3d;perspective:800px;position:relative;overflow:hidden}
.ind-cell::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at var(--mx,50%) var(--my,50%),rgba(232,209,197,.06),transparent 50%);opacity:0;transition:opacity .3s;pointer-events:none}
.ind-cell:hover::before{opacity:1}
.ind-cell:hover{border-color:rgba(232,209,197,.2)}
.ind-thumb{width:80px;height:64px;overflow:hidden;border-radius:8px;flex-shrink:0}
.ind-thumb img{width:100%;height:100%;object-fit:cover}
.ind-name{font-family:var(--serif);font-size:clamp(.95rem,1.8vw,1.05rem);font-weight:600;margin-bottom:.4rem}
.ind-desc{font-size:.8rem;color:var(--muted);line-height:1.75}

/* STATS */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px}
.stat-cell{background:var(--bg2);padding:clamp(1.5rem,3vw,2.5rem) clamp(1rem,2vw,2rem);text-align:center;border:1px solid var(--border);transition:all .3s}
.stat-cell:hover{background:var(--glass)}
.stat-n{font-family:var(--serif);font-size:clamp(2rem,4vw,3rem);font-weight:300;background:linear-gradient(135deg,var(--accent),#c4917e);-webkit-background-clip:text;-webkit-text-fill-color:transparent;display:block;line-height:1}
.stat-l{font-family:var(--mono);font-size:.6rem;letter-spacing:1px;color:var(--muted);margin-top:.5rem}

/* QUOTE */
.quote-sec{background:#080810;padding:clamp(3rem,7vw,6rem) clamp(1.5rem,8%,9rem);text-align:center}
.quote-sec blockquote{font-family:var(--serif);font-size:clamp(1.4rem,3.5vw,2.6rem);font-weight:300;font-style:italic;max-width:700px;margin:0 auto;line-height:1.3}
.quote-sec blockquote em{font-style:normal;background:linear-gradient(135deg,var(--accent),#c4917e);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.quote-attr{font-family:var(--mono);font-size:.58rem;letter-spacing:2.5px;color:var(--muted);margin-top:1.5rem}

/* WHY US */
.why-layout{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,5rem);align-items:start}
.why-sticky{position:sticky;top:72px}
.why-img{border-radius:16px;overflow:hidden;height:clamp(300px,50vw,520px);border:1px solid var(--border)}
.why-img img{width:100%;height:100%;object-fit:cover}
.why-chip{display:inline-block;margin-top:1.2rem;font-family:var(--mono);font-size:.6rem;letter-spacing:1px;background:linear-gradient(135deg,var(--primary),#6b3a3b);color:#fff;padding:.5rem 1rem;border-radius:100px}
.why-list{border-top:1px solid var(--border)}
.why-item{display:grid;grid-template-columns:2.5rem 1fr;gap:1rem;padding:clamp(1.2rem,2.5vw,1.8rem) 0;border-bottom:1px solid var(--border);transition:all .3s}
.why-item:hover{padding-left:.6rem;background:var(--glass);border-radius:8px}
.why-idx{font-family:var(--mono);font-size:.58rem;color:var(--muted);padding-top:.2rem}
.why-item h4{font-family:var(--serif);font-size:clamp(.95rem,1.8vw,1.05rem);font-weight:600;margin-bottom:.35rem}
.why-item p{font-size:.82rem;color:var(--muted);line-height:1.75}

/* CONTACT */
.contact-layout{display:grid;grid-template-columns:1fr 1.4fr;gap:clamp(2rem,6vw,5rem);align-items:start}
.c-aside h2{font-family:var(--serif);font-size:clamp(1.8rem,4vw,2.4rem);font-weight:300;margin-bottom:.8rem;line-height:1.1}
.c-aside p{font-size:.86rem;color:var(--muted);line-height:1.8;margin-bottom:2rem}
.c-items{display:flex;flex-direction:column;gap:.6rem}
.c-item{display:flex;gap:.8rem;align-items:center;padding:.8rem 1rem;background:var(--glass);border:1px solid var(--border);border-radius:12px;transition:all .3s}
.c-item:hover{border-color:rgba(232,209,197,.2);background:rgba(255,255,255,.06)}
.c-ico{font-size:.95rem;width:28px;text-align:center;flex-shrink:0}
.c-lbl{font-family:var(--mono);font-size:.55rem;letter-spacing:1px;color:var(--muted)}
.c-val{font-size:.84rem;font-weight:500;margin-top:.1rem}
.form-card{background:var(--glass);border:1px solid var(--border);border-radius:20px;padding:clamp(1.5rem,3vw,2.5rem);backdrop-filter:blur(20px);box-shadow:0 8px 40px rgba(0,0,0,.2)}
.form-h{font-family:var(--serif);font-size:clamp(1.3rem,2.5vw,1.6rem);font-weight:600;margin-bottom:.3rem}
.form-sub{font-family:var(--mono);font-size:.6rem;letter-spacing:1px;color:var(--muted);margin-bottom:1.8rem}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:.8rem}
.fg{display:flex;flex-direction:column;gap:.3rem;margin-bottom:.8rem}
.fg label{font-family:var(--mono);font-size:.58rem;letter-spacing:1.2px;color:var(--muted);text-transform:uppercase}
.fg input,.fg select,.fg textarea{padding:.7rem .9rem;border:1px solid var(--border);border-radius:10px;font-family:var(--sys);font-size:.86rem;background:rgba(255,255,255,.03);color:var(--ink);outline:none;transition:all .3s;-webkit-appearance:none}
.fg input:focus,.fg select:focus,.fg textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,209,197,.1)}
.fg textarea{resize:vertical;min-height:80px}
.fg input.invalid,.fg select.invalid{border-color:#e74c3c;box-shadow:0 0 0 3px rgba(231,76,60,.1)}
.fg .field-error{font-family:var(--mono);font-size:.55rem;color:#e74c3c;margin-top:.15rem}
.form-cta{width:100%;background:linear-gradient(135deg,var(--primary),#6b3a3b);color:#fff;padding:.9rem;border-radius:100px;border:none;font-family:var(--sys);font-size:.85rem;font-weight:500;margin-top:.5rem;transition:all .3s;box-shadow:0 4px 24px rgba(69,40,41,.3)}
.form-cta:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(69,40,41,.4)}

/* FOOTER */
footer{background:#050508;border-top:1px solid var(--border);color:#fff;padding:2.5rem clamp(1.5rem,8%,9rem);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
.f-logo{font-family:var(--serif);font-size:.95rem;font-weight:600;background:linear-gradient(135deg,var(--ink),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.f-links{display:flex;gap:1.5rem;flex-wrap:wrap}
.f-links a{font-family:var(--mono);font-size:.58rem;letter-spacing:.8px;opacity:.4;transition:opacity .2s}
.f-links a:hover{opacity:.9;color:var(--accent)}
.f-copy{font-family:var(--mono);font-size:.55rem;opacity:.3;letter-spacing:.5px}

/* SCROLL REVEAL */
.sr{opacity:0;transform:translateY(32px);transition:opacity .8s var(--ease),transform .8s var(--ease);will-change:opacity,transform}
.sr.vis{opacity:1;transform:translateY(0)}
.sr.d1{transition-delay:.1s}.sr.d2{transition-delay:.2s}.sr.d3{transition-delay:.3s}.sr.d4{transition-delay:.4s}
.sr-scale{opacity:0;transform:scale(.95);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.sr-scale.vis{opacity:1;transform:scale(1)}

@keyframes rise{to{opacity:1;transform:translateY(0)}}
@keyframes chipIn{from{opacity:0;transform:translateY(16px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}

/* RESPONSIVE */
@media(max-width:1024px){
.svc-row{grid-template-columns:40px 1fr}.svc-row .svc-arrow{display:none}.svc-row .svc-body{grid-column:1/-1}
}
@media(max-width:768px){
.nav-c{display:none}.ham{display:flex}
.hero-content{padding:0 1.5rem}
.hero-steps{flex-wrap:wrap;gap:.5rem}
.proc-grid{grid-template-columns:1fr}
.svc-row{grid-template-columns:1fr;gap:.8rem}.svc-idx,.svc-arrow{display:none}
.mosaic{grid-template-columns:1fr 1fr;grid-template-rows:auto}
.mos:first-child{grid-row:auto;grid-column:1/-1;height:220px}.mos{height:160px}
.ind-grid{grid-template-columns:1fr}
.stats{grid-template-columns:1fr 1fr}
.why-layout{grid-template-columns:1fr}.why-sticky{position:static}.why-img{height:240px}
.contact-layout{grid-template-columns:1fr}
.row2{grid-template-columns:1fr}
footer{flex-direction:column;align-items:flex-start}
.aqi-chip{bottom:5%;right:auto;left:1rem}
.sec{padding:3.5rem 1.5rem}
}
@media(max-width:480px){
.hero-h1{font-size:2.2rem}
.hero-btns{flex-direction:column}.btn-a,.btn-b{width:100%;text-align:center}
.ind-cell{grid-template-columns:1fr}.ind-thumb{width:100%;height:140px}
}

/* DARK MODE TOGGLE */
.dm-toggle{display:flex;align-items:center;gap:.4rem;background:none;border:1px solid var(--border);border-radius:100px;padding:.3rem .6rem;cursor:pointer;transition:all .3s}
.dm-toggle:hover{border-color:var(--accent);background:rgba(232,209,197,.06)}
.dm-icon{font-size:.72rem;line-height:1;transition:opacity .3s}
.dm-track{width:28px;height:16px;border-radius:100px;background:var(--border);position:relative;transition:background .3s;flex-shrink:0}
.dm-thumb{position:absolute;top:2px;left:2px;width:12px;height:12px;border-radius:50%;background:var(--accent);transition:transform .3s var(--spring)}

/* LIGHT THEME */
[data-theme="light"]{
--bg:#F3E8DF;--bg2:#EDE0D6;--bg3:#E8D1C5;--ink:#1E1414;--ink2:#3A2E2E;--muted:#6A5E5E;
--border:rgba(0,0,0,.1);--primary:#452829;--accent:#452829;--glow:rgba(69,40,41,.15);
--card:#FDF6F0;--glass:rgba(255,255,255,.6)
}
[data-theme="light"] nav{background:rgba(243,232,223,.9);border-bottom-color:rgba(0,0,0,.08)}
[data-theme="light"] nav.scrolled{background:rgba(243,232,223,.97)}
[data-theme="light"] .logo{background:linear-gradient(135deg,#1E1414,#452829);-webkit-background-clip:text}
[data-theme="light"] .nav-cta{background:linear-gradient(135deg,#1E1414,#452829)}
[data-theme="light"] .drawer{background:rgba(243,232,223,.97)}
[data-theme="light"] .drawer a{color:#1E1414}
[data-theme="light"] .hero{background:var(--bg)}
[data-theme="light"] .hero-h1{color:#1E1414}
[data-theme="light"] .hero-h1 em{background:linear-gradient(135deg,#452829,#6b3a3b);-webkit-background-clip:text}
[data-theme="light"] .hero-tag{color:#452829}
[data-theme="light"] .hero-tag::before{background:#452829}
[data-theme="light"] .hstep-n{border-color:#452829;color:#452829}
[data-theme="light"] .btn-b{background:rgba(255,255,255,.7);color:#1E1414;border-color:rgba(0,0,0,.12)}
[data-theme="light"] .aqi-chip{background:rgba(255,255,255,.9);border-color:rgba(0,0,0,.08);box-shadow:0 8px 32px rgba(0,0,0,.1)}
[data-theme="light"] .aqi-chip-num{background:linear-gradient(135deg,#452829,#6b3a3b);-webkit-background-clip:text}
[data-theme="light"] .aqi-chip-status{color:#452829}
[data-theme="light"] .h2{color:#1E1414}
[data-theme="light"] .h2 em{background:linear-gradient(135deg,#452829,#6b3a3b);-webkit-background-clip:text}
[data-theme="light"] .lbl{color:#452829}
[data-theme="light"] .proc-cell{background:rgba(255,255,255,.6);border-color:rgba(0,0,0,.06)}
[data-theme="light"] .proc-cell:hover{background:rgba(255,255,255,.9);border-color:rgba(69,40,41,.2)}
[data-theme="light"] .proc-title{color:#1E1414}
[data-theme="light"] .svc-row:hover{background:rgba(255,255,255,.5)}
[data-theme="light"] .svc-name{color:#1E1414}
[data-theme="light"] .svc-tag{color:#452829;border-color:rgba(69,40,41,.3)}
[data-theme="light"] .ind-cell{background:rgba(255,255,255,.6);border-color:rgba(0,0,0,.06)}
[data-theme="light"] .ind-cell:hover{border-color:rgba(69,40,41,.2)}
[data-theme="light"] .ind-name{color:#1E1414}
[data-theme="light"] .stat-cell{background:var(--bg2);border-color:rgba(0,0,0,.06)}
[data-theme="light"] .stat-n{background:linear-gradient(135deg,#452829,#6b3a3b);-webkit-background-clip:text}
[data-theme="light"] .quote-sec{background:#1E1414}
[data-theme="light"] .quote-sec blockquote{color:#fff}
[data-theme="light"] .quote-sec blockquote em{background:linear-gradient(135deg,#E8D1C5,#c4917e);-webkit-background-clip:text}
[data-theme="light"] .sec-dark{background:#1E1414}
[data-theme="light"] .sec-dark .h2{color:#fff}
[data-theme="light"] .sec-dark .h2 em{background:linear-gradient(135deg,#E8D1C5,#c4917e);-webkit-background-clip:text}
[data-theme="light"] .sec-dark .lbl{color:rgba(255,255,255,.4)}
[data-theme="light"] .sec-dark .body-text{color:rgba(255,255,255,.55)}
[data-theme="light"] .why-img{border-color:rgba(0,0,0,.08)}
[data-theme="light"] .why-item h4{color:#1E1414}
[data-theme="light"] .why-item:hover{background:rgba(255,255,255,.5)}
[data-theme="light"] .c-aside h2{color:#1E1414}
[data-theme="light"] .c-item{background:rgba(255,255,255,.6);border-color:rgba(0,0,0,.06)}
[data-theme="light"] .c-item:hover{background:rgba(255,255,255,.9)}
[data-theme="light"] .form-card{background:rgba(255,255,255,.7);border-color:rgba(0,0,0,.08);box-shadow:0 8px 40px rgba(0,0,0,.06)}
[data-theme="light"] .form-h{color:#1E1414}
[data-theme="light"] .fg input,[data-theme="light"] .fg select,[data-theme="light"] .fg textarea{background:rgba(255,255,255,.8);border-color:rgba(0,0,0,.1);color:#1E1414}
[data-theme="light"] footer{background:#1E1414}
[data-theme="light"] .dm-track{background:rgba(0,0,0,.15)}
[data-theme="light"] .dm-thumb{background:#452829}
[data-theme="light"] #loader{background:var(--bg)}
[data-theme="light"] .ham span{background:#1E1414}

/* Light mode toggle thumb position */
[data-theme="light"] .dm-thumb{transform:translateX(12px)}

/* HERO VIDEO */
.hero-video{position:absolute;inset:0;z-index:0;width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;z-index:1;background:rgba(22,16,15,.6)}
#hero-canvas{z-index:2;pointer-events:none}
.hero-fallback-bg{position:absolute;inset:0;z-index:0;background:linear-gradient(135deg,#452829,#16100F,#0a0a0f);background-size:300% 300%;animation:gradShift 12s ease infinite}
@keyframes gradShift{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}

/* FLOATING POLLUTANT CHIPS */
.chip-layer{position:absolute;top:0;right:0;width:50%;height:100%;z-index:3;pointer-events:none}
.pol-chip{position:absolute;display:inline-flex;align-items:center;gap:.6rem;background:rgba(232,209,197,.12);border:1px solid rgba(232,209,197,.25);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:2rem;padding:.55rem 1.1rem;font-family:var(--mono);font-size:.72rem;color:var(--accent);cursor:pointer;pointer-events:auto;transition:all .3s;white-space:nowrap}
.pol-chip:hover{transform:scale(1.05);box-shadow:0 0 20px rgba(232,209,197,.2);background:rgba(232,209,197,.18)}
.pol-chip .chip-arrow{opacity:.5;font-size:.65rem;transition:opacity .3s}
.pol-chip:hover .chip-arrow{opacity:1}
@keyframes floatChip{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.pol-chip:nth-child(1){top:20%;left:8%;animation:floatChip 4s ease-in-out 0s infinite}
.pol-chip:nth-child(2){top:32%;right:12%;animation:floatChip 5s ease-in-out .4s infinite}
.pol-chip:nth-child(3){top:44%;left:20%;animation:floatChip 4.5s ease-in-out .8s infinite}
.pol-chip:nth-child(4){top:30%;left:45%;animation:floatChip 5.5s ease-in-out 1.2s infinite}
.pol-chip:nth-child(5){top:52%;right:8%;animation:floatChip 4.2s ease-in-out 1.6s infinite}
.pol-chip:nth-child(6){top:38%;left:32%;animation:floatChip 5.2s ease-in-out 2s infinite}
@media(max-width:768px){.chip-layer{display:none}}

/* GHOST CTA BUTTON */
.nav-ghost{font-size:.73rem;font-weight:500;background:transparent;color:var(--accent);padding:.5rem 1.2rem;border-radius:100px;border:1px solid rgba(232,209,197,.4);transition:all .3s;cursor:pointer}
.nav-ghost:hover{background:rgba(232,209,197,.08);border-color:var(--accent)}
[data-theme="light"] .nav-ghost{color:#452829;border-color:rgba(69,40,41,.3)}
[data-theme="light"] .nav-ghost:hover{background:rgba(69,40,41,.06)}

/* CASE STUDY CARDS */
.cs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}
.cs-card{background:var(--glass);border:1px solid var(--border);border-radius:16px;padding:clamp(1.5rem,3vw,2rem);transition:all .4s;transform-style:preserve-3d;perspective:800px}
.cs-card:hover{border-color:rgba(232,209,197,.2);transform:translateY(-4px)}
.cs-type{font-family:var(--mono);font-size:.55rem;letter-spacing:2px;color:var(--muted);text-transform:uppercase;margin-bottom:1rem}
.cs-problem{font-size:.85rem;color:var(--ink2);line-height:1.7;margin-bottom:1.2rem}
.cs-metrics{display:flex;gap:.8rem;flex-wrap:wrap;margin-bottom:1.2rem}
.cs-pill{font-family:var(--mono);font-size:.6rem;padding:.35rem .8rem;border-radius:100px;font-weight:500}
.cs-pill.before{background:rgba(231,76,60,.15);color:#e74c3c;border:1px solid rgba(231,76,60,.25)}
.cs-pill.after{background:rgba(46,204,113,.15);color:#2ecc71;border:1px solid rgba(46,204,113,.25)}
.cs-readmore{font-family:var(--mono);font-size:.65rem;letter-spacing:1px;color:var(--accent);cursor:pointer;transition:color .3s}
.cs-readmore:hover{color:var(--ink)}
[data-theme="light"] .cs-card{background:rgba(255,255,255,.6)}
[data-theme="light"] .cs-problem{color:#3A2E2E}

/* ACCORDION (KNOW MORE) */
.km-layout{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:start}
.km-accordion{display:flex;flex-direction:column;gap:2px}
.km-accordion details{background:var(--glass);border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:all .3s}
.km-accordion details[open]{border-color:rgba(232,209,197,.2);background:rgba(255,255,255,.04)}
.km-accordion summary{font-family:var(--serif);font-size:clamp(.95rem,1.8vw,1.05rem);font-weight:600;padding:1rem 1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:space-between;list-style:none;transition:all .3s}
.km-accordion summary::-webkit-details-marker{display:none}
.km-accordion summary::after{content:'+';font-family:var(--mono);font-size:1rem;color:var(--muted);transition:transform .3s}
.km-accordion details[open] summary::after{content:'−'}
.km-accordion .km-body{padding:0 1.2rem 1rem;font-size:.84rem;color:var(--muted);line-height:1.8}
[data-theme="light"] .km-accordion details{background:rgba(255,255,255,.6)}
[data-theme="light"] .km-accordion details[open]{background:rgba(255,255,255,.9)}
@media(max-width:768px){.km-layout{grid-template-columns:1fr}}

/* PARAMETER TABLE */
.param-card{background:var(--glass);border:1px solid var(--border);border-radius:16px;padding:clamp(1.2rem,3vw,2rem);overflow-x:auto}
.param-card table{width:100%;border-collapse:collapse;font-size:.78rem}
.param-card th{font-family:var(--mono);font-size:.58rem;letter-spacing:1.5px;color:var(--accent);text-transform:uppercase;text-align:left;padding:.7rem .6rem;border-bottom:1px solid var(--border)}
.param-card td{padding:.7rem .6rem;border-bottom:1px solid var(--border);color:var(--ink2);vertical-align:top}
.param-card tr:last-child td{border-bottom:none}
.param-card .param-name{font-weight:500;color:var(--ink)}
[data-theme="light"] .param-card{background:rgba(255,255,255,.7)}

/* NEWS CARDS */
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}
.news-card{background:var(--glass);border:1px solid var(--border);border-radius:16px;padding:clamp(1.5rem,3vw,2rem);transition:all .4s}
.news-card:hover{border-color:rgba(232,209,197,.2);transform:translateY(-4px)}
.news-tag{display:inline-block;font-family:var(--mono);font-size:.55rem;letter-spacing:1px;color:var(--accent);border:1px solid rgba(232,209,197,.3);padding:.2rem .6rem;border-radius:100px;margin-bottom:.8rem}
.news-headline{font-family:var(--serif);font-size:clamp(1rem,2vw,1.2rem);font-weight:600;line-height:1.25;margin-bottom:.5rem}
.news-excerpt{font-size:.82rem;color:var(--muted);line-height:1.7;margin-bottom:.8rem}
.news-date{font-family:var(--mono);font-size:.55rem;color:var(--muted);letter-spacing:1px}
.news-link{font-family:var(--mono);font-size:.65rem;letter-spacing:1px;color:var(--accent);float:right;cursor:pointer;transition:color .3s}
.news-link:hover{color:var(--ink)}
[data-theme="light"] .news-card{background:rgba(255,255,255,.6)}