*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root,[data-theme="light"]{
--a:#0B7ADB;--a-l:#3DA1F5;--a-d:#005EB5;--a-bg:rgba(11,122,219,.06);
--bg:#FBFCFE;--bg2:#F2F7FC;--bg3:#E6F0FA;
--t:#0D1A2D;--t2:#4A6070;--t3:#8FA5B5;
--card:#FFF;--shadow:0 2px 16px rgba(11,30,60,.06);--border:rgba(11,30,60,.06);
--r:14px;--r2:20px;
--green:#16A34A;
}
[data-theme="dark"]{
--bg:#080E1A;--bg2:#0F1724;--bg3:#151F30;
--t:#E8F0FA;--t2:#7A95AE;--t3:#445566;
--card:#121C2C;--shadow:0 2px 16px rgba(0,0,0,.3);--border:rgba(255,255,255,.07);
}
html{overflow-x:hidden;scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;color:var(--t);background:var(--bg);margin:0 auto;overflow-x:hidden;-webkit-font-smoothing:antialiased;max-width:430px;font-size:15px;line-height:1.6}
.serif{font-family:'Playfair Display',serif}
.ic{width:20px;height:20px;display:inline-block;vertical-align:middle;fill:none;stroke:currentColor;flex-shrink:0}
.ic-f{fill:currentColor;stroke:none}
section{padding:3rem 1.25rem;position:relative;overflow:hidden}
/* ANIMATIONS */
.rv{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease}.rv.v{opacity:1;transform:none}
.sl{opacity:0;transform:translateX(-30px);transition:opacity .55s ease,transform .55s ease}.sl.v{opacity:1;transform:none}
.sr{opacity:0;transform:translateX(30px);transition:opacity .55s ease,transform .55s ease}.sr.v{opacity:1;transform:none}
.d1{transition-delay:.06s}.d2{transition-delay:.12s}.d3{transition-delay:.18s}.d4{transition-delay:.24s}.d5{transition-delay:.3s}.d6{transition-delay:.36s}
/* PROGRESS */
.prog{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,var(--a-l),var(--a),var(--a-d));z-index:301;width:0}
/* TOP NAV */
.nav{position:fixed;top:0;left:50%;transform:translateX(-50%);width:100%;max-width:430px;z-index:300;display:flex;justify-content:space-between;align-items:center;padding:10px 16px;background:var(--bg);border-bottom:1px solid var(--border)}
.nav-logo{display:flex;align-items:center;gap:8px}
.nav-logo-mark{width:34px;height:34px;background:linear-gradient(135deg,var(--a-l),var(--a-d));border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff}
.nav-brand{font-size:14px;font-weight:800;letter-spacing:-.3px}.nav-brand span{color:var(--a)}
.nav-r{display:flex;gap:6px;align-items:center}
.nav-btn{width:34px;height:34px;border:none;background:var(--bg2);border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--t2)}
.nav-cta{display:flex;align-items:center;gap:4px;background:var(--a);color:#fff;font-size:12px;font-weight:700;padding:7px 14px;border-radius:20px;text-decoration:none}
/* EYEBROW */
.ey{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:2.5px;color:var(--a);margin-bottom:6px}
/* HEADINGS — LARGE */
.h1{font-size:28px;font-weight:900;line-height:1.08;letter-spacing:-.8px;margin-bottom:12px}
.h2{font-size:24px;font-weight:800;line-height:1.12;letter-spacing:-.5px;margin-bottom:10px}
.h3{font-size:16px;font-weight:700;margin-bottom:4px}
.grad{background:linear-gradient(135deg,var(--t),var(--a-d));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.ac{color:var(--a)}
/* BODY TEXT — READABLE */
.body{font-size:15px;color:var(--t2);line-height:1.65}
.body-s{font-size:13px;color:var(--t2);line-height:1.6}
.body-xs{font-size:11px;color:var(--t3)}
/* CTA BUTTONS */
.btn{display:flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:700;padding:14px 24px;border-radius:50px;border:none;cursor:pointer;text-decoration:none;width:100%}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--a);color:#fff;box-shadow:0 6px 24px rgba(11,122,219,.25)}
.btn-outline{background:transparent;color:var(--a);border:2px solid var(--a)}
.btn-white{background:#fff;color:var(--a-d);box-shadow:0 4px 16px rgba(0,0,0,.1)}
.micro{font-size:11px;color:var(--t3);text-align:center;margin-top:6px;display:flex;align-items:center;justify-content:center;gap:4px}
.micro .ic{width:14px;height:14px;color:var(--a)}
/* CARD */
.card{background:var(--card);border-radius:var(--r);border:1px solid var(--border);box-shadow:var(--shadow);padding:16px}
/* HERO */
#hero{padding-top:70px;background:linear-gradient(180deg,var(--bg3) 0%,var(--bg) 100%);text-align:center}
.hero-photo-wrap{position:relative;width:150px;height:150px;margin:0 auto 16px;cursor:pointer;-webkit-tap-highlight-color:transparent}
.hero-photo-glow{position:absolute;inset:-14px;border-radius:50%;background:radial-gradient(circle,rgba(11,122,219,.15),transparent 70%)}
.hero-photo-ring{position:absolute;inset:-6px;border-radius:50%;border:2px dashed var(--a-l);opacity:.25}
.hero-photo{width:100%;height:100%;border-radius:50%;object-fit:cover;object-position:center top;position:absolute;top:0;left:0;z-index:1;border:3px solid #fff;box-shadow:0 8px 28px rgba(11,122,219,.18);transition:opacity .15s ease}
.hero-photo.blink{z-index:2}
.hero-photo.hide{opacity:0}
.hero-pills{display:flex;gap:6px;justify-content:center;flex-wrap:wrap;margin-bottom:14px}
.hero-pill{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:4px 12px;font-size:12px;font-weight:600;color:var(--t2);box-shadow:var(--shadow)}
.hero-pill b{color:var(--a)}
.hero-stats{display:flex;justify-content:center;gap:2rem;padding:16px 0;margin-top:16px;border-top:1px solid var(--border)}
.hero-stat b{font-size:22px;font-weight:900;color:var(--a);display:block;letter-spacing:-.5px}
.hero-stat small{font-size:10px;color:var(--t3);text-transform:uppercase;letter-spacing:.5px}
/* PARALLAX STRIP */
.pstrip{position:relative;height:260px;overflow:hidden}
.pstrip-img{position:absolute;top:0;left:0;width:100%;height:200%;object-fit:cover;will-change:transform}
.pstrip-ov{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,22,40,.65),rgba(10,22,40,.75));display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;text-align:center;padding:0 20px}
/* BEFORE/AFTER GALLERY — compact */
.ba-wrap{overflow:hidden;margin:0 -1.25rem;position:relative}
.ba-track{display:flex;gap:8px;padding:0 1.25rem 10px;will-change:transform}
.ba-card{min-width:260px;max-width:260px;border-radius:14px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);background:var(--card);flex-shrink:0}
.ba-img{width:100%;height:300px;object-fit:cover;object-position:center center;display:block}
.ba-info{padding:8px 14px;text-align:center}
.ba-label{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:1px;display:inline-block;margin:0 6px}
.ba-before{color:var(--t3)}.ba-after{color:var(--green)}
/* SERVICE CARDS */
.svc-card{display:flex;gap:14px;align-items:flex-start;padding:16px;background:var(--card);border-radius:var(--r);border:1px solid var(--border);box-shadow:var(--shadow);margin-bottom:10px}
.svc-icon{width:44px;height:44px;min-width:44px;background:var(--bg3);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--a)}
.svc-price{font-size:14px;font-weight:800;color:var(--a);margin-top:4px}
/* GEMS GALLERY — infinite */
.gems-wrap{overflow:hidden;margin:0 -1.25rem}
.gems-track{display:flex;gap:8px;padding:0 1.25rem 8px;will-change:transform}
.gem-card{min-width:140px;max-width:140px;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);flex-shrink:0}
.gem-card img{width:100%;height:140px;object-fit:cover;display:block}
/* FEAR/SOLUTION */
.fear-block{border-radius:var(--r);border:1px solid var(--border);box-shadow:var(--shadow);overflow:hidden;margin-bottom:10px;background:var(--card)}
.fear-top{padding:12px 16px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border)}
.fear-top .h3{margin:0}
.fear-answer{padding:14px 16px;background:rgba(22,163,74,.04);border-left:3px solid var(--green)}
.fear-answer p{font-size:13px;color:var(--t2);line-height:1.6}
/* COST STAIRS */
.stair{display:flex;align-items:stretch;gap:10px;margin-bottom:6px}
.stair-bar{width:4px;border-radius:4px;flex-shrink:0}
.stair-card{flex:1;border-radius:12px;padding:12px 14px;display:flex;justify-content:space-between;align-items:center}
.stair-label{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.5px}
.stair-svc{font-size:15px;font-weight:800;margin-top:2px}
.stair-price{font-size:20px;font-weight:900;text-align:right}
.stair-meta{font-size:10px;color:var(--t3);text-align:right}
/* PRICE TABLE */
.ptable{border-radius:var(--r);overflow:hidden;margin-bottom:10px;border:1px solid var(--border);background:var(--card)}
.ptable-head{padding:12px 16px;font-size:14px;font-weight:700;color:var(--a);display:flex;align-items:center;gap:6px;border-bottom:1px solid var(--border);background:var(--bg2)}
.prow{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;border-bottom:1px solid var(--border);font-size:13px}
.prow:last-child{border-bottom:none}
.prow span{color:var(--t2);flex:1;padding-right:10px}
.prow b{color:var(--a);font-weight:700;white-space:nowrap;font-size:14px}
/* CALC */
.calc-card{background:var(--card);border-radius:var(--r2);padding:20px;box-shadow:var(--shadow);border:1px solid var(--border)}
.calc-chips{display:flex;flex-wrap:wrap;gap:6px}
.calc-chip{padding:8px 14px;border:1.5px solid var(--border);border-radius:20px;font-size:13px;font-weight:600;cursor:pointer;color:var(--t2);background:var(--bg2)}
.calc-chip.on{border-color:var(--a);background:var(--a-bg);color:var(--a)}
.calc-result{background:linear-gradient(135deg,var(--a),var(--a-d));border-radius:var(--r);padding:18px;text-align:center;color:#fff;margin-top:12px}
.calc-total{font-size:36px;font-weight:900;letter-spacing:-2px}
input[type=range]{width:100%;height:6px;-webkit-appearance:none;appearance:none;background:linear-gradient(90deg,var(--a) 0%,var(--bg2) 0%);border-radius:4px;outline:none;margin:10px 0}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:28px;height:28px;background:var(--a);border-radius:50%;cursor:pointer;box-shadow:0 2px 8px rgba(11,122,219,.35);border:3px solid #fff}
/* STEPS */
.steps-wrap{position:relative;padding-left:32px}
.steps-wrap::before{content:'';position:absolute;left:13px;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--a-l),var(--a-d))}
.step{position:relative;margin-bottom:24px}.step:last-child{margin-bottom:0}
.step-num{position:absolute;left:-32px;top:0;width:28px;height:28px;background:var(--a);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:12px;font-weight:800;box-shadow:0 3px 10px rgba(11,122,219,.25)}
/* REVIEWS */
.rev-wrap{overflow:hidden;margin:0 -1.25rem}
.rev-track{display:flex;gap:10px;padding:0 1.25rem 12px;will-change:transform}
.rev-card{min-width:270px;max-width:270px;padding:16px;border-radius:var(--r);box-shadow:var(--shadow);border:1px solid var(--border);background:var(--card);flex-shrink:0}
.rev-stars{color:#F59E0B;font-size:14px;letter-spacing:1px;margin-bottom:6px}
.rev-head{font-size:15px;font-weight:800;margin-bottom:4px}
.rev-who{display:flex;align-items:center;gap:8px;margin-top:10px}
.rev-av{width:36px;height:36px;border-radius:50%;object-fit:cover;border:2px solid var(--bg3)}
/* FAQ */
.faq-item{border-bottom:1px solid var(--border);padding:14px 0}
.faq-q{display:flex;justify-content:space-between;align-items:center;cursor:pointer;gap:8px;-webkit-tap-highlight-color:transparent}
.faq-q .h3{margin:0;font-size:14px}
.faq-toggle{width:28px;height:28px;min-width:28px;background:var(--bg2);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:transform .3s,background .3s;color:var(--a)}
.faq-item.open .faq-toggle{transform:rotate(45deg);background:var(--a);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.16,1,.3,1)}
.faq-item.open .faq-a{max-height:300px;padding-top:8px}
/* CONTACTS */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.contact-card{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);border-radius:var(--r);padding:14px 10px;text-decoration:none;color:#fff}
.contact-card h4{font-size:13px;font-weight:700}
.contact-card p{font-size:11px;color:rgba(255,255,255,.5)}
.contact-ic{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center}
/* FOOTER */
.footer{background:#060D1C;color:rgba(255,255,255,.5);padding:2rem 1.25rem 1rem}
/* STICKY */
.sticky{position:fixed;bottom:0;left:50%;transform:translateX(-50%) translateY(100%);width:100%;max-width:430px;z-index:100;padding:10px 16px;padding-bottom:max(10px,env(safe-area-inset-bottom));background:var(--bg);border-top:1px solid var(--border);opacity:0;pointer-events:none;transition:all .3s}
.sticky.show{opacity:1;pointer-events:all;transform:translateX(-50%) translateY(0)}
/* Bottom spacer for sticky */
.bottom-spacer{height:70px}
/* POPUP */
.popup-ov{display:none;position:fixed;inset:0;z-index:500;background:rgba(0,0,0,.5);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);align-items:flex-end;justify-content:center}
.popup-ov.open{display:flex}
.popup-box{width:100%;max-width:430px;max-height:85vh;background:var(--card);border-radius:var(--r2) var(--r2) 0 0;padding:24px 20px 32px;overflow-y:auto;animation:slideUp .4s cubic-bezier(.16,1,.3,1)}
.popup-x{position:absolute;top:14px;right:14px;width:32px;height:32px;border:none;background:var(--bg2);border-radius:50%;cursor:pointer;color:var(--t2);display:flex;align-items:center;justify-content:center;font-size:16px}
.f-input{width:100%;padding:12px 14px;border-radius:10px;border:1.5px solid var(--border);background:var(--bg2);color:var(--t);font-size:15px;outline:none;font-family:inherit;margin-bottom:10px}
.f-input:focus{border-color:var(--a)}
.f-label{font-size:12px;font-weight:600;color:var(--t2);margin-bottom:4px;display:block}
/* QUIZ */
.quiz-ov{display:none;position:fixed;inset:0;z-index:500;background:rgba(0,0,0,.5);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);align-items:flex-end;justify-content:center}
.quiz-ov.open{display:flex}
.quiz-box{width:100%;max-width:430px;max-height:85vh;background:var(--card);border-radius:var(--r2) var(--r2) 0 0;padding:24px 20px 32px;overflow-y:auto;animation:slideUp .4s cubic-bezier(.16,1,.3,1);position:relative}
.quiz-prog{display:flex;gap:4px;margin-bottom:16px}
.quiz-dot{flex:1;height:4px;border-radius:3px;background:var(--bg2)}.quiz-dot.on{background:var(--a)}.quiz-dot.done{background:var(--a);opacity:.4}
.quiz-step{display:none}.quiz-step.on{display:block}
.quiz-q{font-size:18px;font-weight:800;margin-bottom:14px;line-height:1.3}
.quiz-opt{padding:12px 16px;border:2px solid var(--border);border-radius:12px;font-size:14px;font-weight:500;cursor:pointer;margin-bottom:8px;background:var(--card)}
.quiz-opt:active{transform:scale(.98)}
.quiz-opt.sel{border-color:var(--a);background:var(--a-bg)}
.quiz-res{display:none;text-align:center}.quiz-res.on{display:block}
/* DARK SECTION */
.dark-sec{background:linear-gradient(165deg,#0A1628,#051030);color:#fff}
.dark-sec .ey{color:var(--a-l)}
@keyframes slideUp{from{transform:translateY(100%)}to{transform:translateY(0)}}