@font-face{font-family:"Sora";src:url(../fonts/sora-600.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Sora";src:url(../fonts/sora-700.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Manrope";src:url(../fonts/manrope-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Manrope";src:url(../fonts/manrope-500.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"Manrope";src:url(../fonts/manrope-700.woff2) format("woff2");font-weight:700;font-display:swap}

:root{
--bg:#081428;--bg-alt:#0B1A33;--surface:#0F203B;--surface-2:#15294A;--line:#1F3557;
--ink:#F1F5FA;--body:#A3B3C8;--muted:#7F93AE;
--accent:#30B0F0;--accent-pressed:#1A97D8;--accent-deep:#0B5FA8;--on-accent:#06121F;
--font-display:"Sora",system-ui,sans-serif;--font-body:"Manrope",system-ui,sans-serif;
--r-sm:10px;--r-md:18px;--wrap:1200px;--gut:24px;
--sec:112px;
}

:where(*,*::before,*::after){box-sizing:border-box}
:where(body,h1,h2,h3,h4,p,ul,ol,dl,dd,figure,blockquote){margin:0;padding:0}
:where(ul,ol){list-style:none}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--body);font-family:var(--font-body);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:clip}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
:where(h1,h2,h3,h4){font-family:var(--font-display);color:var(--ink);font-weight:700;letter-spacing:-.02em;line-height:1.12}
h1{font-size:clamp(2.4rem,6vw,4.4rem);line-height:1.04;letter-spacing:-.035em}
h2{font-size:clamp(1.75rem,3.4vw,2.6rem)}
h3{font-size:1.06rem;line-height:1.3;letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.bt-ic{flex:none}

.bt-wrap{width:100%;max-width:calc(var(--wrap) + var(--gut)*2);margin:0 auto;padding:0 var(--gut)}
.bt-skip{position:absolute;left:-9999px;top:8px;background:var(--accent);color:var(--on-accent);padding:8px 14px;border-radius:8px;z-index:100}
.bt-skip:focus{left:8px}

/* Buttons */
.bt-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 26px;border-radius:999px;font-family:var(--font-body);font-weight:700;font-size:15px;border:1px solid transparent;transition:background .2s,border-color .2s,color .2s;white-space:nowrap;cursor:pointer}
.bt-btn--primary{background:var(--accent);color:var(--on-accent)}
.bt-btn--primary:hover{background:var(--accent-pressed)}
.bt-btn--ghost{border-color:var(--line);color:var(--ink);background:transparent}
.bt-btn--ghost:hover{border-color:var(--accent)}
.bt-btn--sm{min-height:40px;padding:0 18px;font-size:14px}

/* Header */
.bt-header{position:sticky;top:0;z-index:50;background:rgba(7,13,24,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.admin-bar .bt-header{top:32px}
.bt-header__in{display:flex;align-items:center;gap:28px;height:76px}
.bt-logo{display:flex;align-items:center;gap:10px;flex:none}
.bt-logo img{width:38px;height:38px;object-fit:contain}
.bt-logo__text{display:flex;flex-direction:column;line-height:1}
.bt-logo__text strong{font-family:var(--font-display);color:var(--ink);font-size:19px;letter-spacing:.02em}
.bt-logo__text small{font-size:9.5px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin-top:4px}
.bt-nav{margin-left:auto}
.bt-menu{display:flex;align-items:center;gap:4px}
.bt-menu>li{position:relative}
.bt-menu a{display:flex;align-items:center;gap:6px;padding:10px 14px;border-radius:999px;font-size:14.5px;font-weight:500;color:var(--body);transition:color .2s,background .2s}
.bt-menu a:hover,.bt-menu .current-menu-item>a,.bt-menu .current-menu-ancestor>a{color:var(--ink)}
.bt-menu .current-menu-item>a{background:var(--surface-2)}
.bt-menu .menu-item-has-children>a::after{content:"";width:7px;height:7px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-3px);margin-left:2px}
.bt-menu .sub-menu{position:absolute;top:100%;left:0;min-width:250px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:8px;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .18s,transform .18s,visibility .18s}
.bt-menu li:hover>.sub-menu,.bt-menu li:focus-within>.sub-menu{opacity:1;visibility:visible;transform:none}
.bt-menu .sub-menu a{border-radius:var(--r-sm);padding:10px 12px}
.bt-menu .sub-menu a:hover{background:var(--surface-2)}
.bt-nav__mobile-cta{display:none}
.bt-header__act{display:flex;align-items:center;gap:18px}
.bt-header__tel{display:flex;flex-direction:column;line-height:1.2;color:var(--ink);font-weight:700;font-size:14px;text-align:right}
.bt-header__tel small{font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:700}
.bt-burger{display:none;background:transparent;border:1px solid var(--line);color:var(--ink);width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;cursor:pointer}

/* Chips and eyebrows */
.bt-chip{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border:1px solid rgba(48,176,240,.35);background:rgba(48,176,240,.08);color:var(--accent);border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase}
.bt-chip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.bt-eyebrow{font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}

/* Hero */
.bt-hero{position:relative;padding:110px 0 72px;background:radial-gradient(60% 55% at 50% 0%,rgba(48,176,240,.20),rgba(11,95,168,.08) 45%,transparent 75%),var(--bg);overflow:hidden}
.bt-hero__in{text-align:center;display:flex;flex-direction:column;align-items:center}
.bt-hero h1{margin:26px 0 22px}
.bt-hero__lead{max-width:640px;font-size:clamp(1rem,1.4vw,1.15rem);color:var(--body)}
.bt-hero__act{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:36px}
.bt-hero__act--left{justify-content:flex-start}
.bt-stats{display:grid;grid-template-columns:repeat(4,1fr);margin-top:76px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md)}
.bt-stats>div{padding:30px 28px}
.bt-stats>div+div{border-left:1px solid var(--line)}
.bt-stats dt{font-family:var(--font-display);font-weight:700;color:var(--accent);font-size:clamp(2rem,3.4vw,2.7rem);line-height:1;letter-spacing:-.03em}
.bt-stats dd{margin-top:10px;font-size:14px;color:var(--muted)}

/* Platforms strip */
.bt-platforms{padding:44px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-alt)}
.bt-platforms__label{text-align:center;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:22px}
.bt-platforms__list{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.bt-platforms__list li{padding:10px 18px;border:1px solid var(--line);border-radius:999px;font-family:var(--font-display);font-weight:600;font-size:14px;color:var(--ink);background:var(--surface)}

/* Sections */
.bt-sec{padding:var(--sec) 0}
.bt-sec--alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.bt-sec--tight{padding:64px 0 var(--sec)}
.bt-head{max-width:640px;margin-bottom:48px}
.bt-head p:not(.bt-eyebrow){margin-top:16px}
.bt-head--row{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px}

.bt-split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.bt-split h2{margin-bottom:20px}
.bt-split p+p{margin-top:16px}
.bt-quote{position:relative;background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:var(--r-md);padding:44px 40px}
.bt-quote__mark{display:block;font-family:var(--font-display);font-size:64px;line-height:.6;color:var(--accent);margin-bottom:18px}
.bt-quote blockquote{font-size:1.12rem;line-height:1.7;color:var(--ink);border:0;margin:0;padding:0}
.bt-quote figcaption,.bt-sign{display:flex;align-items:center;gap:14px;margin-top:28px}
.bt-quote figcaption strong,.bt-sign strong{display:block;color:var(--ink);font-family:var(--font-display);font-size:15px}
.bt-quote figcaption small,.bt-sign small{font-size:13px;color:var(--muted)}
.bt-avatar{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent-deep),var(--accent));color:var(--ink);font-family:var(--font-display);font-weight:700;font-size:14px;flex:none}
.bt-checks{margin-top:26px;display:grid;gap:12px}
.bt-checks li{display:flex;align-items:center;gap:12px;color:var(--ink);font-weight:500}
.bt-checks .bt-ic{width:24px;height:24px;padding:4px;border-radius:50%;background:rgba(48,176,240,.14);color:var(--accent)}

/* Cards */
.bt-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.bt-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:30px;transition:border-color .2s,transform .2s}
.bt-card:hover{border-color:rgba(48,176,240,.5);transform:translateY(-3px)}
.bt-card h3{margin:22px 0 10px;font-size:1.15rem}
.bt-card p{font-size:15px;flex:1}
.bt-card__more{display:inline-flex;align-items:center;gap:6px;margin-top:22px;color:var(--accent);font-weight:700;font-size:14px}
.bt-tile{width:44px;height:44px;border-radius:var(--r-sm);display:grid;place-items:center;background:var(--surface-2);border:1px solid var(--line);color:var(--accent);flex:none}
.bt-tile--lg{width:58px;height:58px;border-radius:14px}

/* Pills + table */
.bt-pills{display:flex;flex-wrap:wrap;gap:10px;margin:-16px 0 32px}
.bt-pills li{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border:1px solid var(--line);border-radius:999px;background:var(--surface);font-size:13.5px;color:var(--muted)}
.bt-pills strong{color:var(--ink)}
.bt-pills .bt-ic{color:var(--accent)}
.bt-table-wrap{border:1px solid var(--line);border-radius:var(--r-md);overflow-x:auto;background:var(--surface)}
.bt-table{width:100%;min-width:720px;border-collapse:collapse;font-size:15px}
.bt-table th,.bt-table td{padding:17px 22px;text-align:left;border-bottom:1px solid var(--line)}
.bt-table tbody tr:last-child>*{border-bottom:0}
.bt-table thead th{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.bt-table tbody th{font-weight:500;color:var(--ink)}
.bt-table td{color:var(--muted);text-align:center}
.bt-table thead th:not(:first-child){text-align:center}
.bt-table .is-us{background:rgba(48,176,240,.08);color:var(--ink);font-weight:700}
.bt-table thead .is-us{color:var(--accent)}

/* Steps */
.bt-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:28px}
.bt-steps li{border-top:1px solid var(--line);padding-top:24px}
.bt-steps__n{display:block;font-family:var(--font-display);font-weight:700;font-size:2.4rem;line-height:1;color:var(--accent);letter-spacing:-.03em;margin-bottom:18px}
.bt-steps h3{margin-bottom:8px}
.bt-steps p{font-size:14.5px}

/* Planes */
.bt-plane{position:relative;aspect-ratio:4/3.4;border-radius:var(--r-md);background:linear-gradient(140deg,var(--accent-deep) 0%,var(--accent) 100%);overflow:hidden}
.bt-plane::after{content:"";position:absolute;inset:0;background:radial-gradient(70% 60% at 80% 10%,rgba(255,255,255,.18),transparent 60%)}
.bt-plane span{position:absolute;left:22px;bottom:18px;z-index:1;font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:rgba(241,245,250,.9)}
.bt-plane--sm{aspect-ratio:16/9}

/* FAQ */
.bt-faq-wrap{display:grid;grid-template-columns:1fr 1.4fr;gap:64px;align-items:start}
.bt-faq{display:grid;gap:12px}
.bt-faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);transition:border-color .2s}
.bt-faq details[open]{border-color:rgba(48,176,240,.45)}
.bt-faq summary{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:20px 24px;cursor:pointer;list-style:none;color:var(--ink);font-family:var(--font-display);font-weight:600;font-size:1rem}
.bt-faq summary::-webkit-details-marker{display:none}
.bt-faq summary .bt-ic{color:var(--accent);transition:transform .2s}
.bt-faq details[open] summary .bt-ic{transform:rotate(45deg)}
.bt-faq details p{padding:0 24px 22px;font-size:15px}

/* CTA band */
.bt-cta{background:linear-gradient(120deg,#0A3F73 0%,var(--accent-deep) 55%,#1585C8 100%);padding:76px 0}
.bt-cta__in{display:flex;align-items:center;justify-content:space-between;gap:40px}
.bt-cta h2{margin-bottom:12px}
.bt-cta p{color:#D6E7F6;max-width:560px}
.bt-cta__act{display:flex;flex-direction:column;align-items:center;gap:12px;flex:none}
.bt-cta .bt-btn--primary{background:var(--ink);color:var(--on-accent)}
.bt-cta .bt-btn--primary:hover{background:#D6E7F6}
.bt-cta__wa{font-size:14px;color:#D6E7F6;text-decoration:underline;text-underline-offset:4px}

/* Footer */
.bt-footer{background:#050A13;padding:80px 0 0;border-top:1px solid var(--line)}
.bt-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1.3fr;gap:40px}
.bt-footer__brand p{margin-top:20px;font-size:14.5px;max-width:340px}
.bt-footer h3{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink);margin-bottom:18px;font-family:var(--font-body);font-weight:700}
.bt-footer ul{display:grid;gap:11px;font-size:14.5px}
.bt-footer ul a:hover{color:var(--accent)}
.bt-footer__contact li a,.bt-footer__contact li span{display:flex;gap:10px;align-items:flex-start}
.bt-footer__contact .bt-ic{color:var(--accent);margin-top:4px}
.bt-footer__bar{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:64px;padding-top:24px;padding-bottom:28px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.bt-wa-float{position:fixed;right:20px;bottom:20px;z-index:60;width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:var(--accent);color:var(--on-accent);transition:background .2s}
.bt-wa-float:hover{background:var(--accent-pressed)}

/* Page hero */
.bt-phero{padding:72px 0 80px;background:radial-gradient(55% 70% at 15% 0%,rgba(48,176,240,.16),transparent 70%),var(--bg);border-bottom:1px solid var(--line)}
.bt-phero--center{text-align:center;background:radial-gradient(60% 70% at 50% 0%,rgba(48,176,240,.18),transparent 72%),var(--bg)}
.bt-phero--center .bt-wrap>h1{margin:22px auto 18px;max-width:900px;font-size:clamp(2.2rem,5vw,3.6rem)}
.bt-phero--center .bt-phero__lead{margin:0 auto}
.bt-phero--center .bt-stats{margin-top:56px;text-align:left}
.bt-phero__lead{max-width:640px;font-size:1.1rem}
.bt-crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:40px}
.bt-crumbs a:hover{color:var(--accent)}
.bt-crumbs [aria-current]{color:var(--ink)}
.bt-phero__grid{display:grid;grid-template-columns:1.25fr 1fr;gap:56px;align-items:center}
.bt-phero__grid h1{font-size:clamp(2.2rem,4.6vw,3.5rem);margin:26px 0 18px}
.bt-hl{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:30px;display:grid;gap:16px}
.bt-hl li{display:flex;gap:12px;align-items:flex-start;color:var(--ink);font-weight:500}
.bt-hl .bt-ic{width:24px;height:24px;padding:4px;border-radius:50%;background:rgba(48,176,240,.14);color:var(--accent);margin-top:1px}

/* Features */
.bt-feats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.bt-feat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:28px}
.bt-feat__n{display:block;font-family:var(--font-display);font-weight:700;color:var(--accent);font-size:14px;margin-bottom:16px}
.bt-feat h3{margin-bottom:8px}
.bt-feat p{font-size:15px}
.bt-plats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.bt-plat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:14px 14px 24px}
.bt-plat h3{margin:20px 10px 8px;font-size:1.15rem}
.bt-plat p{margin:0 10px;font-size:14.5px}
.bt-plat__best{margin-top:12px!important;font-size:13.5px!important;color:var(--muted)}
.bt-plat__best strong{color:var(--ink)}
.bt-mini{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.bt-mini a{display:flex;align-items:center;gap:14px;padding:16px 18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);color:var(--ink);font-family:var(--font-display);font-weight:600;transition:border-color .2s}
.bt-mini a>.bt-ic{margin-left:auto;color:var(--accent)}
.bt-mini a:hover{border-color:rgba(48,176,240,.5)}

/* Services overview */
.bt-svc-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.bt-svc{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:36px;display:flex;flex-direction:column}
.bt-svc__head{display:flex;justify-content:space-between;align-items:flex-start}
.bt-svc__n{font-family:var(--font-display);font-weight:700;font-size:2rem;color:var(--line);line-height:1}
.bt-svc h2{font-size:1.6rem;margin:24px 0 12px}
.bt-svc>p{font-size:15.5px}
.bt-svc__tags{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 28px;flex:1;align-content:flex-start}
.bt-svc__tags li{padding:6px 12px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);font-size:13px;color:var(--body)}
.bt-svc .bt-btn{align-self:flex-start}

/* About values */
.bt-values{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.bt-values>div{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:28px}
.bt-values h3{margin:20px 0 8px}
.bt-values p{font-size:15px}

/* Contact */
.bt-contact{display:grid;grid-template-columns:1fr 1.5fr;gap:32px;align-items:start}
.bt-contact__info{display:grid;gap:12px}
.bt-ci{display:flex;align-items:center;gap:16px;padding:18px 20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);color:var(--ink);font-weight:500;transition:border-color .2s}
a.bt-ci:hover{border-color:rgba(48,176,240,.5)}
.bt-ci small{display:block;font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:2px}
.bt-ci>span:last-child{word-break:break-word}
.bt-contact__form{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:40px}
.bt-contact__form h2{font-size:1.6rem;margin-bottom:26px}
.bt-contact__form .wpcf7-form p{margin:0 0 18px}
.bt-contact__form label{display:block;font-size:13px;font-weight:700;color:var(--ink);letter-spacing:.02em}
.bt-contact__form .wpcf7-form-control-wrap{display:block;margin-top:8px}
.bt-contact__form input[type=text],.bt-contact__form input[type=email],.bt-contact__form input[type=tel],.bt-contact__form select,.bt-contact__form textarea{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-sm);padding:14px 16px;color:var(--ink);font:inherit;font-size:15px;transition:border-color .2s}
.bt-contact__form textarea{min-height:150px;resize:vertical}
.bt-contact__form select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--accent) 50%),linear-gradient(135deg,var(--accent) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 15px) 50%;background-size:5px 5px;background-repeat:no-repeat}
.bt-contact__form input:focus,.bt-contact__form select:focus,.bt-contact__form textarea:focus{outline:none;border-color:var(--accent)}
.bt-contact__form ::placeholder{color:var(--muted)}
.bt-row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.bt-contact__form .wpcf7-submit{background:var(--accent);color:var(--on-accent);border:0;border-radius:999px;min-height:50px;padding:0 30px;font:inherit;font-weight:700;cursor:pointer;transition:background .2s}
.bt-contact__form .wpcf7-submit:hover{background:var(--accent-pressed)}
.bt-contact__form .wpcf7-not-valid-tip{color:#F59E8B;font-size:13px;margin-top:6px}
.bt-contact__form .wpcf7-response-output{margin:16px 0 0!important;border-radius:var(--r-sm);padding:12px 16px!important;color:var(--ink)}
.bt-contact__form .wpcf7-spinner{background-color:var(--accent)}

/* Prose */
.bt-prose{max-width:780px}
.bt-prose>*+*{margin-top:18px}
.bt-prose h2{font-size:1.6rem;margin-top:40px}
.bt-prose a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.bt-prose ul{list-style:disc;padding-left:22px}

/* Reveal (degrades to visible) */
.js .bt-rv{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.js .bt-rv.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.js .bt-rv{opacity:1;transform:none;transition:none}.bt-card:hover{transform:none}}

/* Plugin shells printed on non-shop pages */
body:not(.woocommerce-page):not(.woocommerce) .yith-wcqv-wrapper,body:not(.woocommerce-page):not(.woocommerce) #yith-quick-view-modal{display:none!important}

/* Responsive */
@media (max-width:1100px){
.bt-header__tel{display:none}
.bt-steps{grid-template-columns:repeat(3,1fr)}
.bt-plats{grid-template-columns:repeat(2,1fr)}
.bt-values{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:960px){
:root{--sec:80px}
.bt-cards,.bt-feats,.bt-mini{grid-template-columns:repeat(2,1fr)}
.bt-split,.bt-phero__grid,.bt-faq-wrap,.bt-contact{grid-template-columns:1fr;gap:40px}
.bt-split--founder .bt-plane{max-width:520px}
.bt-svc-list{grid-template-columns:1fr}
.bt-footer__grid{grid-template-columns:1fr 1fr}
.bt-cta__in{flex-direction:column;align-items:flex-start}
.bt-cta__act{align-items:flex-start}
}
@media (max-width:782px){.admin-bar .bt-header{top:46px}}
@media (max-width:600px){.admin-bar .bt-header{top:0}}
@media (max-width:640px){
:root{--gut:16px;--sec:64px}
.bt-hero{padding:72px 0 56px}
.bt-stats{grid-template-columns:1fr 1fr;margin-top:52px}
.bt-stats>div{padding:22px 18px}
.bt-stats>div:nth-child(3){border-left:0}
.bt-stats>div:nth-child(n+3){border-top:1px solid var(--line)}
.bt-cards,.bt-feats,.bt-mini,.bt-plats,.bt-values,.bt-steps,.bt-row2{grid-template-columns:1fr}
.bt-head--row{flex-direction:column;align-items:flex-start}
.bt-quote{padding:32px 24px}
.bt-svc,.bt-contact__form{padding:26px 20px}
.bt-footer__grid{grid-template-columns:1fr}
.bt-hero__act .bt-btn{width:100%}
.bt-logo__text small{display:none}
}

/* ===== v1.1 additions ===== */
.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap}
.bt-head__sub{margin-top:14px;max-width:620px}
.bt-card__pts{display:grid;gap:8px;margin-top:16px;font-size:14px;color:var(--ink)}
.bt-card__pts li{display:flex;gap:9px;align-items:flex-start}
.bt-card__pts .bt-ic{color:var(--accent);margin-top:4px}
.bt-note{margin-top:16px;font-size:14px;color:var(--muted)}
.bt-table--models{min-width:760px}
.bt-table--models thead th{vertical-align:bottom;text-transform:none;letter-spacing:0;font-size:15px;color:var(--ink);font-family:var(--font-display);font-weight:600}
.bt-table--models thead th:first-child{font-family:var(--font-body);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.bt-table--models thead small{display:block;margin-top:6px;font-family:var(--font-body);font-weight:400;font-size:12.5px;color:var(--muted);line-height:1.45}
.bt-table--models tbody th{font-family:var(--font-display);font-weight:600}
.bt-yes{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:rgba(48,176,240,.16);color:var(--accent)}
.bt-no{font-size:13px;color:var(--muted)}
.bt-models{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.bt-model{background:var(--surface);border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:var(--r-md);padding:26px}
.bt-model h3{margin-bottom:8px}
.bt-model p{font-size:15px}

/* Courses */
.bt-badge{display:inline-flex;align-items:center;padding:6px 12px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--muted);white-space:nowrap}
.bt-badge.is-open{background:rgba(48,176,240,.14);border-color:rgba(48,176,240,.4);color:var(--accent)}
.bt-course-list{display:grid;gap:10px}
.bt-course-list li{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);color:var(--ink);font-family:var(--font-display);font-weight:600}
.bt-course-hero{display:grid;grid-template-columns:1fr 1fr;gap:48px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:48px}
.bt-course-hero h2{margin:20px 0 14px}
.bt-course-hero__h{margin-bottom:18px;font-size:1.15rem}
.bt-course-facts{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:26px}
.bt-course-facts div{padding:14px 16px;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-sm)}
.bt-course-facts dt{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.bt-course-facts dd{color:var(--ink);font-weight:500;margin-top:2px}
.bt-modules{display:grid;gap:10px}
.bt-modules li{display:flex;gap:16px;padding:16px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg)}
.bt-modules li>span{font-family:var(--font-display);font-weight:700;color:var(--accent);font-size:1.1rem;line-height:1.4}
.bt-modules strong{color:var(--ink);font-family:var(--font-display);font-weight:600}
.bt-modules p{font-size:14px;margin-top:2px}
.bt-course-card{display:flex;flex-direction:column}
.bt-course-card .bt-badge{align-self:flex-start;margin-bottom:16px}
.bt-course-card .bt-card__pts{flex:1;margin-bottom:6px}

/* Blog */
.bt-posts{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.bt-post-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:12px;transition:border-color .2s}
.bt-post-card:hover{border-color:rgba(48,176,240,.5)}
.bt-post-card__body{padding:18px 10px 12px}
.bt-post-card__meta{font-size:13px;color:var(--muted);margin-bottom:8px}
.bt-post-card h3{font-size:1.1rem;margin-bottom:8px}
.bt-post-card p:last-child{font-size:14.5px}
.bt-cats{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:30px}
.bt-cats a{display:inline-block;padding:8px 16px;border:1px solid var(--line);border-radius:999px;font-size:14px;color:var(--body);background:var(--surface)}
.bt-cats a:hover,.bt-cats a.is-on{border-color:var(--accent);color:var(--ink)}
.bt-post-meta{margin-top:18px;color:var(--muted);font-size:14px}
.bt-prose--article{font-size:17px;line-height:1.75}
.bt-prose--article h2{font-size:1.55rem;margin-top:44px}
.bt-prose--article h3{font-size:1.2rem;margin-top:30px}
.bt-prose--article strong{color:var(--ink)}
.bt-prose--article ol{list-style:decimal;padding-left:22px}
.bt-prose--article li+li{margin-top:8px}
.bt-prose--article blockquote{border-left:3px solid var(--accent);padding:4px 0 4px 20px;color:var(--ink)}
.bt-post-cta{margin-top:56px!important;background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:var(--r-md);padding:32px}
.bt-post-cta h2{margin-top:0!important;font-size:1.4rem}
.bt-post-cta p{margin-top:10px}
.bt-pager{margin-top:40px}
.bt-pager .nav-links{display:flex;justify-content:center;gap:8px}
.bt-pager .page-numbers{display:grid;place-items:center;min-width:42px;height:42px;padding:0 12px;border:1px solid var(--line);border-radius:999px;color:var(--ink)}
.bt-pager .page-numbers.current{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}
.bt-empty{text-align:center;color:var(--muted);padding:40px 0}

/* Case studies */
.bt-cases{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.bt-case-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:28px;transition:border-color .2s}
.bt-case-card:hover{border-color:rgba(48,176,240,.5)}
.bt-case-card__tags{display:flex;flex-wrap:wrap;gap:8px}
.bt-case-card__tags span{padding:5px 11px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.bt-case-card__big{font-family:var(--font-display);font-weight:700;font-size:2.6rem;line-height:1;color:var(--accent);letter-spacing:-.03em;margin-top:24px}
.bt-case-card__lbl{font-size:13px;color:var(--muted);margin-top:6px}
.bt-case-card h3{margin:20px 0 8px;font-size:1.12rem}
.bt-case-card>p{font-size:14.5px;flex:1}
.bt-case-h1{font-size:clamp(2rem,4.4vw,3.2rem);margin:22px 0 16px;max-width:900px}
.bt-stats--case{margin-top:44px}
.bt-stats dd small{display:block;margin-top:4px;font-size:12.5px;color:var(--muted);opacity:.85}
.bt-case-body{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:start}
.bt-case-text h2{font-size:1.4rem;margin:0 0 14px}
.bt-case-text h2:not(:first-child){margin-top:36px}
.bt-case-charts{display:grid;gap:18px;position:sticky;top:100px}
.bt-draft-flag{background:#3A2A0E;border-bottom:1px solid #6B4E1A;color:#F3D9A6;font-size:14px;font-weight:600;padding:12px 0}

/* Charts */
.bt-chart{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:22px 20px 14px}
.bt-chart__title{font-family:var(--font-display);font-weight:600;color:var(--ink);font-size:15px;margin-bottom:10px}
.bt-chart svg{width:100%;height:auto;overflow:visible}
.bt-chart__grid{stroke:var(--line);stroke-width:1}
.bt-chart__base{stroke:#2A3B55;stroke-width:1}
.bt-chart__tick{fill:var(--muted);font-family:var(--font-body);font-size:12px}
.bt-chart__label{fill:var(--ink);font-family:var(--font-display);font-weight:700;font-size:14px}
.bt-chart__bar{fill:var(--accent);transition:opacity .15s}
.bt-chart__line{fill:none;stroke:var(--accent);stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
.bt-chart__area{fill:rgba(48,176,240,.10)}
.bt-chart__dot{fill:var(--accent);stroke:var(--surface);stroke-width:2}
.bt-chart__hit:hover .bt-chart__bar{opacity:.8}
.bt-chart__hit:hover .bt-chart__dot{r:6}
.bt-chart__table{margin-top:8px;font-size:13px}
.bt-chart__table summary{cursor:pointer;color:var(--muted)}
.bt-chart__table table{width:100%;border-collapse:collapse;margin-top:10px}
.bt-chart__table th,.bt-chart__table td{padding:7px 4px;border-bottom:1px solid var(--line);text-align:left}
.bt-chart__table th{color:var(--muted);font-weight:700}
.bt-chart__table td:last-child,.bt-chart__table th:last-child{text-align:right}
.bt-chart__tip{position:fixed;z-index:80;pointer-events:none;background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:13px;color:var(--ink);transform:translate(-50%,calc(-100% - 10px));white-space:nowrap}

.bt-faq-groups{display:grid;gap:56px}

@media (max-width:960px){
.bt-models{grid-template-columns:repeat(2,1fr)}
.bt-posts,.bt-cases{grid-template-columns:repeat(2,1fr)}
.bt-course-hero,.bt-case-body{grid-template-columns:1fr}
.bt-case-charts{position:static}
.bt-footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
.bt-models,.bt-posts,.bt-cases,.bt-course-facts{grid-template-columns:1fr}
.bt-course-hero{padding:26px 20px}
.bt-stats--case{grid-template-columns:1fr 1fr}
.bt-footer__grid{grid-template-columns:1fr}
}
/* ===== v1.2 additions ===== */
.bt-announce{background:linear-gradient(90deg,var(--accent-deep),#1585C8);color:#EAF4FC;font-size:14px}
.bt-announce__in{display:flex;align-items:center;justify-content:center;gap:10px;min-height:42px;padding-top:8px;padding-bottom:8px;text-align:center}
.bt-announce p{margin:0}
.bt-announce a{display:inline-flex;align-items:center;gap:4px;margin-left:6px;color:#fff;font-weight:700;text-decoration:underline;text-underline-offset:3px}
.bt-announce__ic{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:rgba(255,255,255,.16);flex:none}

.bt-img{display:block;width:100%;height:100%;object-fit:cover}
.bt-photo{border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/3.4;background:var(--surface-2);border:1px solid var(--line)}
.bt-photo--hero{position:relative;overflow:visible;border:0;background:none;aspect-ratio:auto}
.bt-photo--hero>.bt-img{border-radius:var(--r-md);aspect-ratio:4/3.6;border:1px solid var(--line)}
.bt-photo__inset{position:absolute;left:-36px;bottom:-36px;width:44%;aspect-ratio:1;border-radius:var(--r-md);overflow:hidden;border:4px solid var(--bg)}
.bt-photo--course{aspect-ratio:16/8;margin-bottom:24px}
.bt-checks--hero{margin-top:26px}
.bt-phero__grid{align-items:center}

.bt-card__media{margin:-30px -30px 22px;aspect-ratio:16/9;overflow:hidden;border-radius:var(--r-md) var(--r-md) 0 0;border-bottom:1px solid var(--line)}
.bt-card__media .bt-img{transition:transform .5s ease}
.bt-card:hover .bt-card__media .bt-img{transform:scale(1.04)}
.bt-model .bt-tile{margin-bottom:18px}

.bt-post-card__media{position:relative;aspect-ratio:16/10;border-radius:12px;overflow:hidden;background:linear-gradient(140deg,var(--accent-deep),var(--accent))}
.bt-post-card__cat{position:absolute;left:12px;top:12px;padding:5px 11px;border-radius:999px;background:rgba(7,13,24,.82);color:var(--ink);font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase}
.bt-post-hero{margin-top:-36px}
.bt-post-hero .bt-img{max-width:980px;margin:0 auto;aspect-ratio:21/9;border-radius:var(--r-md);border:1px solid var(--line)}

.bt-carousel__nav{display:flex;align-items:center;gap:10px}
.bt-arrow{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;transition:border-color .2s,background .2s}
.bt-arrow:hover{border-color:var(--accent);background:var(--surface-2)}
.bt-arrow:disabled{opacity:.35;cursor:default}
.bt-carousel{display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 36px)/3);gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;scrollbar-width:none;padding-bottom:4px}
.bt-carousel::-webkit-scrollbar{display:none}
.bt-carousel>*{scroll-snap-align:start}

.bt-case-card__media{margin:-28px -28px 22px;aspect-ratio:16/9;overflow:hidden;border-radius:var(--r-md) var(--r-md) 0 0;border-bottom:1px solid var(--line)}
.bt-case-hero-img{aspect-ratio:16/9}

.bt-team{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.bt-member{display:flex;gap:22px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:28px}
.bt-member--lead{grid-column:1/-1;align-items:center;padding:36px;border-left:3px solid var(--accent)}
.bt-member__avatar{display:grid;place-items:center;width:96px;height:96px;border-radius:50%;background:var(--surface-2);border:1px solid var(--line);color:var(--muted);flex:none}
.bt-member--lead .bt-member__avatar{width:124px;height:124px;color:var(--accent)}
.bt-member h2{font-size:1.25rem}
.bt-member--lead h2{font-size:1.6rem}
.bt-member__role{margin:4px 0 10px;color:var(--accent);font-weight:700;font-size:14px;letter-spacing:.02em}
.bt-member p:last-child{font-size:15px}

.bt-footer__tag{margin-top:16px;font-family:var(--font-display);font-weight:600;color:var(--ink);font-size:1.05rem}
.bt-social{display:flex!important;flex-wrap:wrap;gap:10px!important;margin-top:20px}
.bt-social a{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--body);transition:color .2s,border-color .2s}
.bt-social a:hover{color:var(--accent);border-color:var(--accent)}
.bt-social svg{width:17px;height:17px}

@media (max-width:960px){
.bt-carousel{grid-auto-columns:calc((100% - 18px)/2)}
.bt-photo__inset{left:auto;right:-12px;bottom:-24px;width:38%}
.bt-team{grid-template-columns:1fr}
}
@media (max-width:640px){
.bt-announce{font-size:13px}
.bt-announce__ic{display:none}
.bt-carousel{grid-auto-columns:86%}
.bt-carousel__nav .bt-btn{display:none}
.bt-head--row:has(.bt-carousel__nav){flex-direction:row;align-items:flex-end}
.bt-card__media{margin:-30px -30px 20px}
.bt-member,.bt-member--lead{flex-direction:column;padding:24px}
.bt-member__avatar{width:80px;height:80px}
.bt-post-hero{margin-top:-24px}
.bt-post-hero .bt-img{aspect-ratio:16/10}
}
/* v1.3 WhatsApp + socials */
.bt-wa-ic{flex:none;display:inline-block;vertical-align:middle}
.bt-btn .bt-wa-ic{color:#25D366}
.bt-cta__wa{display:inline-flex;align-items:center;gap:8px;text-decoration:none!important;font-weight:700;color:#fff!important}
.bt-cta__wa .bt-wa-ic{color:#fff}
.bt-tile--wa{color:#25D366}
.bt-footer__contact .bt-wa-ic{color:#25D366;margin-top:4px}
.bt-wa-float{background:#25D366!important;color:#fff!important;width:58px;height:58px}
.bt-wa-float:hover{background:#1EBE5A!important}
.bt-social a.is-wa{color:#25D366}
.bt-social a.is-wa:hover{border-color:#25D366}
.bt-example-flag{background:var(--surface-2);border-bottom:1px solid var(--line);color:var(--body);font-size:14px;padding:12px 0}
.bt-example-flag strong{color:var(--accent)}
.bt-case-card__tags .is-example{background:rgba(48,176,240,.14);border-color:rgba(48,176,240,.4);color:var(--accent)}

/* ===== v1.4 responsive ===== */
@media (max-width:1080px){
.bt-header__tel{display:none}
.bt-burger{display:inline-flex}
.bt-header__act .bt-btn{display:none}
.bt-header__in{height:68px}
.bt-nav{position:absolute;left:0;right:0;top:100%;height:calc(100dvh - 68px);background:var(--bg);border-top:1px solid var(--line);padding:12px var(--gut) 40px;overflow-y:auto;overscroll-behavior:contain;opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .2s ease,transform .2s ease,visibility .2s;margin:0}
.bt-nav.is-open{opacity:1;visibility:visible;transform:none}
.bt-menu{flex-direction:column;align-items:stretch;gap:0}
.bt-menu>li{border-bottom:1px solid var(--line)}
.bt-menu a{padding:16px 4px;border-radius:0;font-size:17px;color:var(--ink)}
.bt-menu .current-menu-item>a{background:none;color:var(--accent)}
.bt-menu .menu-item-has-children>a::after{display:none}
.bt-menu .sub-menu{position:static;opacity:1;visibility:visible;transform:none;background:none;border:0;padding:0 0 10px 14px;min-width:0;display:none}
.bt-menu li.is-open>.sub-menu{display:block}
.bt-menu .sub-menu a{font-size:15px;color:var(--body);padding:11px 4px}
.bt-sub-toggle{position:absolute;right:0;top:6px;width:44px;height:44px;display:grid;place-items:center;background:none;border:0;color:var(--ink);cursor:pointer}
.bt-sub-toggle .bt-ic{transition:transform .2s}
.bt-menu li.is-open>.bt-sub-toggle .bt-ic{transform:rotate(180deg)}
.bt-menu>li.menu-item-has-children>a{padding-right:52px}
.bt-nav__mobile-cta{display:grid;gap:10px;margin-top:28px}
.bt-nav__mobile-cta .bt-btn{width:100%;display:inline-flex}
}
@media (min-width:1081px){.bt-sub-toggle{display:none}}

/* Footer accordion */
.bt-fcol h3{margin-bottom:18px}
.bt-fcol__btn{all:unset;display:flex;width:100%;align-items:center;justify-content:space-between;gap:10px;cursor:default;font:inherit;color:inherit;letter-spacing:inherit;text-transform:inherit}
.bt-fcol__btn .bt-ic{display:none}
@media (max-width:640px){
.bt-footer{padding-top:56px}
.bt-footer__grid{gap:0}
.bt-footer__brand{padding-bottom:28px;border-bottom:1px solid var(--line)}
.bt-fcol{border-bottom:1px solid var(--line)}
.bt-fcol h3{margin:0}
.bt-fcol__btn{cursor:pointer;padding:18px 0;box-sizing:border-box}
.bt-fcol__btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.bt-fcol__btn .bt-ic{display:block;color:var(--accent);transition:transform .2s}
.bt-fcol__btn[aria-expanded="true"] .bt-ic{transform:rotate(180deg)}
.bt-fcol__panel{display:none!important;padding-bottom:20px}
.bt-fcol.is-open .bt-fcol__panel{display:grid!important}
.bt-footer__bar{margin-top:28px;flex-direction:column;gap:6px;text-align:center}
}

/* General mobile polish */
@media (max-width:640px){
h1{font-size:clamp(2rem,9vw,2.6rem)}
h2{font-size:clamp(1.5rem,6.4vw,1.9rem)}
.bt-hero h1{margin:20px 0 16px}
.bt-phero{padding:48px 0 56px}
.bt-phero__lead,.bt-hero__lead{font-size:1rem}
.bt-head{margin-bottom:32px}
.bt-hero__act .bt-btn,.bt-hero__act--left .bt-btn{width:100%}
.bt-photo__inset{right:8px;bottom:-18px;width:34%}
.bt-card,.bt-case-card{padding:24px}
.bt-card__media{margin:-24px -24px 20px}
.bt-case-card__media{margin:-24px -24px 20px}
.bt-quote{padding:28px 22px}
.bt-quote blockquote{font-size:1rem}
.bt-cta{padding:56px 0}
.bt-cta__act,.bt-cta__act .bt-btn{width:100%}
.bt-contact__form{padding:24px 18px}
.bt-faq summary{padding:18px}
.bt-faq details p{padding:0 18px 18px}
.bt-table th,.bt-table td{padding:14px 16px}
.bt-wa-float{right:14px;bottom:14px;width:52px;height:52px}
.bt-course-list li{flex-wrap:wrap}
.bt-crumbs{margin-bottom:24px}
.bt-chart{padding:16px 12px 10px}
}
@media (max-width:380px){
.bt-logo__text strong{font-size:17px}
.bt-stats{grid-template-columns:1fr}
.bt-stats>div+div{border-left:0;border-top:1px solid var(--line)}
}
/* ===== v1.5 shine ===== */
:root{--glow:0 10px 34px -12px rgba(48,176,240,.55);--edge:linear-gradient(140deg,rgba(72,190,255,.55),rgba(48,176,240,.06) 38%,rgba(48,176,240,.04) 62%,rgba(72,190,255,.32))}
body{background:radial-gradient(1200px 700px at 100% -10%,rgba(48,176,240,.10),transparent 60%),radial-gradient(900px 600px at -10% 40%,rgba(11,95,168,.16),transparent 60%),var(--bg)}
.bt-header{background:rgba(8,20,40,.78);border-bottom-color:rgba(72,190,255,.14)}

/* Hero aurora */
.bt-hero{background:radial-gradient(55% 60% at 50% -5%,rgba(72,190,255,.38),rgba(26,151,216,.14) 42%,transparent 72%),radial-gradient(35% 40% at 12% 30%,rgba(11,95,168,.35),transparent 70%),radial-gradient(30% 35% at 88% 35%,rgba(48,176,240,.22),transparent 70%),var(--bg);isolation:isolate}
.bt-hero::before{content:"";position:absolute;inset:0;z-index:-1;background-image:linear-gradient(rgba(120,200,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(120,200,255,.07) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:radial-gradient(70% 60% at 50% 20%,#000 30%,transparent 75%);mask-image:radial-gradient(70% 60% at 50% 20%,#000 30%,transparent 75%)}
.bt-hero h1{background:linear-gradient(180deg,#FFFFFF 30%,#A9DDFF 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.bt-phero,.bt-phero--center{background:radial-gradient(60% 80% at 50% -10%,rgba(72,190,255,.26),rgba(26,151,216,.08) 45%,transparent 75%),transparent}
.bt-sec--alt{background:linear-gradient(180deg,rgba(21,41,74,.55),rgba(11,26,51,.35)),radial-gradient(60% 50% at 85% 0%,rgba(48,176,240,.10),transparent 70%);border-color:rgba(72,190,255,.10)}
.bt-platforms{background:linear-gradient(90deg,rgba(11,95,168,.18),rgba(15,32,59,.6),rgba(11,95,168,.18))}

/* Gradient edges on panels */
.bt-card,.bt-feat,.bt-svc,.bt-values>div,.bt-plat,.bt-post-card,.bt-case-card,.bt-member,.bt-chart,.bt-hl,.bt-contact__form,.bt-course-hero,.bt-model,.bt-stats,.bt-table-wrap,.bt-quote,.bt-faq details,.bt-ci,.bt-mini a,.bt-course-list li{border:1px solid transparent;background:linear-gradient(160deg,rgba(21,41,74,.92),rgba(15,32,59,.92)) padding-box,var(--edge) border-box}
.bt-model{border-top:1px solid transparent}
.bt-quote,.bt-member--lead{border-left:1px solid transparent}
.bt-card:hover,.bt-post-card:hover,.bt-case-card:hover,.bt-mini a:hover,a.bt-ci:hover{background:linear-gradient(160deg,rgba(26,50,88,.95),rgba(15,32,59,.95)) padding-box,linear-gradient(140deg,rgba(110,205,255,.9),rgba(48,176,240,.2) 45%,rgba(110,205,255,.6)) border-box;box-shadow:var(--glow)}
.bt-card,.bt-post-card,.bt-case-card{position:relative;overflow:hidden}
.bt-card::after,.bt-post-card::after,.bt-case-card::after{content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;background:linear-gradient(105deg,transparent,rgba(255,255,255,.07),transparent);transform:skewX(-18deg);transition:left .7s ease;pointer-events:none}
.bt-card:hover::after,.bt-post-card:hover::after,.bt-case-card:hover::after{left:130%}

/* Buttons */
.bt-btn--primary{background:linear-gradient(135deg,#5CC9FF,#30B0F0 45%,#1A8FD6);box-shadow:var(--glow),inset 0 1px 0 rgba(255,255,255,.35)}
.bt-btn--primary:hover{background:linear-gradient(135deg,#74D2FF,#3BB6F2 45%,#1A97D8);box-shadow:0 14px 40px -12px rgba(48,176,240,.75),inset 0 1px 0 rgba(255,255,255,.4)}
.bt-btn--ghost{background:rgba(21,41,74,.5);border-color:rgba(72,190,255,.28)}
.bt-btn--ghost:hover{background:rgba(21,41,74,.85)}
.bt-cta .bt-btn--primary{background:#fff;box-shadow:0 12px 34px -12px rgba(0,0,0,.45)}

/* Numbers and tiles */
.bt-stats dt,.bt-steps__n,.bt-case-card__big{background:linear-gradient(180deg,#8FD8FF,#30B0F0);-webkit-background-clip:text;background-clip:text;color:transparent}
.bt-tile{background:linear-gradient(145deg,rgba(72,190,255,.22),rgba(21,41,74,.9));border-color:rgba(72,190,255,.3);box-shadow:inset 0 1px 0 rgba(255,255,255,.08)}
.bt-chip{box-shadow:0 0 0 4px rgba(48,176,240,.06),0 0 24px -6px rgba(48,176,240,.6)}

/* CTA band */
.bt-cta{position:relative;overflow:hidden;background:radial-gradient(60% 120% at 85% 0%,rgba(140,215,255,.45),transparent 60%),linear-gradient(120deg,#0A3F73 0%,#0B5FA8 50%,#1A97D8 100%)}
.bt-cta::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:48px 48px;-webkit-mask-image:linear-gradient(90deg,transparent,#000 70%);mask-image:linear-gradient(90deg,transparent,#000 70%);pointer-events:none}
.bt-cta__in{position:relative}

.bt-footer{background:linear-gradient(180deg,#061024,#040B19);border-top:0;position:relative}
.bt-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(72,190,255,.6),transparent)}
.bt-announce{background:linear-gradient(90deg,#0A3F73,#0B5FA8 35%,#1A97D8 65%,#0B5FA8)}
.bt-table .is-us{background:linear-gradient(180deg,rgba(48,176,240,.16),rgba(48,176,240,.06))}

/* Case carousel: 2 cards per view */
.bt-carousel--2{grid-auto-columns:calc((100% - 18px)/2)}
@media (max-width:760px){.bt-carousel--2{grid-auto-columns:88%}}
@media (prefers-reduced-motion:reduce){.bt-card::after,.bt-post-card::after,.bt-case-card::after{display:none}}
.bt-case-card__budget{margin-top:14px;font-size:13px;font-weight:700;color:var(--ink);letter-spacing:.02em}
.bt-stats--case .is-budget dt{background:none;-webkit-text-fill-color:currentColor;color:var(--ink)}
.bt-carousel--2 .bt-case-card{height:100%}

/* ===== v1.6 drawer + fixes ===== */
.bt-drawer__head,.bt-drawer__contact,.bt-drawer__foot{display:none}
/* WhatsApp: brand green only on the floating button */
.bt-btn .bt-wa-ic,.bt-tile--wa,.bt-footer__contact .bt-wa-ic,.bt-social a.is-wa{color:inherit}
.bt-tile--wa{color:var(--accent)}
.bt-footer__contact .bt-wa-ic{color:var(--accent)}
.bt-social a.is-wa{color:var(--body)}
.bt-social a.is-wa:hover{color:var(--accent);border-color:var(--accent)}

@media (max-width:1080px){
.bt-header{position:sticky;top:0}
.bt-header__act{margin-left:auto}
.bt-nav{position:fixed;top:0;right:0;left:auto;bottom:0;width:min(88vw,380px);height:100dvh!important;z-index:70;display:flex;flex-direction:column;padding:0;border-top:0;border-left:1px solid rgba(72,190,255,.18);background:linear-gradient(180deg,#0B1A33,#081428);opacity:1;visibility:hidden;transform:translateX(100%);transition:transform .28s ease,visibility .28s}
.bt-nav.is-open{visibility:visible;transform:none}
.bt-drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 18px;border-bottom:1px solid var(--line);flex:none}
.bt-drawer__head .bt-logo__text small{display:block}
.bt-drawer__close{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}
.bt-menu{padding:8px 18px;flex:none}
.bt-drawer__contact{display:grid;gap:10px;padding:18px;border-top:1px solid var(--line);margin-top:8px}
.bt-drawer__contact a:not(.bt-btn){display:flex;align-items:center;gap:12px;color:var(--ink);font-size:15px;font-weight:500;word-break:break-word}
.bt-drawer__contact .bt-tile{width:38px;height:38px}
.bt-drawer__contact .bt-btn{margin-top:8px;width:100%}
.bt-drawer__foot{display:block;margin-top:auto;padding:18px;border-top:1px solid var(--line)}
.bt-drawer__foot .bt-social{margin-top:0;justify-content:flex-start}
.bt-nav{overflow-y:auto}
.bt-backdrop{position:fixed;inset:0;z-index:65;background:rgba(3,8,18,.62);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);opacity:0;transition:opacity .25s}
.bt-backdrop.is-on{opacity:1}
}
@media (min-width:1081px){.bt-backdrop{display:none!important}}
/* v1.6b drawer stacking */
@media (max-width:1080px){.bt-header{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(8,20,40,.97);z-index:60}.bt-backdrop{z-index:55}}

/* ===== v1.8 case cards, smooth scroll, compact mobile tables ===== */
/* Case carousel: photo pinned to the full left side of the card */
.bt-carousel--2 .bt-case-card{display:flex;flex-direction:column;position:relative;padding:28px 28px 28px calc(42% + 26px);min-height:100%}
.bt-carousel--2 .bt-case-card__media{position:absolute;top:0;bottom:0;left:0;width:42%;margin:0;aspect-ratio:auto;border-radius:var(--r-md) 0 0 var(--r-md);border-bottom:0;border-right:1px solid var(--line)}
.bt-carousel--2 .bt-case-card__media .bt-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.bt-carousel--2 .bt-case-card__big{margin-top:16px;font-size:2.2rem}
.bt-carousel--2 .bt-case-card h3{margin-top:14px}
.bt-carousel--2 .bt-case-card>p:not([class]){flex:1}
@media (max-width:640px){.bt-carousel--2 .bt-case-card{padding:24px 22px 24px calc(38% + 18px)}.bt-carousel--2 .bt-case-card__media{width:38%}.bt-carousel--2 .bt-case-card__big{font-size:1.8rem}.bt-carousel--2 .bt-case-card h3{font-size:1rem}.bt-carousel--2 .bt-case-card>p:not([class]){font-size:13.5px}}
@media (max-width:440px){.bt-carousel--2 .bt-case-card{padding:0 20px 22px}.bt-carousel--2 .bt-case-card__media{position:relative;width:auto;height:auto;aspect-ratio:16/9;margin:0 -20px 18px;border-radius:var(--r-md) var(--r-md) 0 0;border-right:0;border-bottom:1px solid var(--line)}}

/* Equal-height cards everywhere, no stray gaps */
.bt-carousel>*{height:100%}
.bt-card,.bt-post-card,.bt-case-card,.bt-feat,.bt-svc,.bt-model,.bt-plat,.bt-values>div{height:100%}
.bt-post-card__body{display:flex;flex-direction:column;flex:1}
.bt-card__media,.bt-case-card__media,.bt-post-card__media{flex:none}
.bt-card__media .bt-img,.bt-case-card__media .bt-img,.bt-post-card__media .bt-img,.bt-photo .bt-img{display:block}

/* Smooth scrolling and swiping */
html{scroll-padding-top:90px}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(1200px 700px at 100% -10%,rgba(48,176,240,.10),transparent 60%),radial-gradient(900px 600px at -10% 40%,rgba(11,95,168,.16),transparent 60%);transform:translateZ(0)}
body{background:var(--bg)}
.bt-carousel{scroll-snap-type:x mandatory;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch;touch-action:pan-x pan-y;scroll-padding-left:0}
.bt-carousel>*{scroll-snap-align:start;scroll-snap-stop:always}
.bt-carousel.is-drag{scroll-snap-type:none;scroll-behavior:auto;cursor:grabbing;user-select:none}
.bt-carousel.is-drag a{pointer-events:none}
.bt-card,.bt-post-card,.bt-case-card{will-change:auto}
.bt-card:hover .bt-card__media .bt-img{transform:scale(1.04);will-change:transform}

/* Compact tables on mobile: fit one screen, no sideways scroll */
@media (max-width:640px){
.bt-table-wrap{overflow-x:visible}
.bt-table,.bt-table--models{min-width:0;width:100%;table-layout:fixed;font-size:12px}
.bt-table th,.bt-table td{padding:10px 6px;line-height:1.35;word-break:break-word;hyphens:auto}
.bt-table thead th{font-size:9.5px;letter-spacing:.06em}
.bt-table tbody th{width:40%;font-size:12px}
.bt-table td{font-size:11.5px}
.bt-table--models tbody th{width:24%;font-size:12px}
.bt-table--models thead th{font-size:11px!important;text-transform:none;letter-spacing:0}
.bt-table--models thead th:first-child{font-size:9.5px!important;text-transform:uppercase}
.bt-table--models thead small{display:none}
.bt-yes{width:22px;height:22px}
.bt-yes .bt-ic{width:12px;height:12px}
.bt-no{font-size:10px}
.bt-pills{gap:6px}
.bt-pills li{padding:6px 10px;font-size:11.5px}
.bt-pills .bt-ic{width:11px;height:11px}
}
@media (max-width:380px){.bt-table,.bt-table--models{font-size:11px}.bt-table th,.bt-table td{padding:8px 4px}}
.bt-member__avatar.has-photo{overflow:hidden;padding:0;border:2px solid rgba(72,190,255,.45);background:#000}
.bt-member__avatar.has-photo .bt-img{width:100%;height:100%;object-fit:cover;object-position:center 20%}

.bt-case-card__desc{font-size:14.5px;flex:1}
.bt-carousel--2 .bt-case-card__desc{display:none}
.bt-carousel--2 .bt-case-card h3{margin-bottom:auto}
.bt-carousel--2 .bt-case-card .bt-card__more{padding-top:18px}

/* v1.9 case dashboards */
.bt-case-dash{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);box-shadow:var(--glow)}
.bt-case-dash .bt-img{width:100%;height:auto;display:block}
.bt-case-card__media .bt-dash{object-fit:cover;object-position:left top}
.bt-carousel--2 .bt-case-card__media .bt-dash{object-position:30% 60%}

/* v2.0 platform logos */
.bt-platforms__list{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;max-width:980px;margin:0 auto}
.bt-platforms__list li.bt-pl{display:flex;align-items:center;justify-content:center;height:78px;padding:0 18px;border-radius:16px;background:#fff;border:1px solid rgba(255,255,255,.6);box-shadow:0 10px 30px -14px rgba(0,0,0,.55);transition:transform .25s ease,box-shadow .25s ease}
.bt-platforms__list li.bt-pl:hover{transform:translateY(-3px);box-shadow:0 16px 36px -14px rgba(47,107,255,.55)}
.bt-pl svg{height:34px;width:auto;max-width:100%;display:block}
.bt-pl--ebay svg,.bt-pl--wix svg,.bt-pl--woocommerce svg{height:30px}
@media (max-width:820px){.bt-platforms__list{grid-template-columns:repeat(3,1fr);gap:10px}.bt-platforms__list li.bt-pl{height:64px}.bt-pl svg{height:28px}}
@media (max-width:480px){.bt-platforms__list{grid-template-columns:repeat(2,1fr)}}
.bt-pl--ebay svg{height:34px}.bt-pl--woocommerce svg{height:26px}.bt-pl--wix svg{height:26px}
@media (max-width:820px){.bt-pl--ebay svg{height:28px}.bt-pl--woocommerce svg{height:20px}.bt-pl--wix svg{height:21px}}
.bt-pl--amazon svg,.bt-pl--tiktok svg,.bt-pl--shopify svg,.bt-pl--wordpress svg,.bt-pl--squarespace svg,.bt-pl--meta svg,.bt-pl--googleads svg{height:40px}
.bt-pl--meta svg{height:44px}
@media (max-width:820px){.bt-pl--amazon svg,.bt-pl--tiktok svg,.bt-pl--shopify svg,.bt-pl--wordpress svg,.bt-pl--squarespace svg,.bt-pl--googleads svg{height:32px}.bt-pl--meta svg{height:36px}}

/* v2.1 sub-services ticker */
.bt-ticker{position:relative;overflow:hidden;padding:18px 0;background:linear-gradient(90deg,#0b2a6b,#1747c9 35%,#2f6bff 50%,#1747c9 65%,#0b2a6b);border-top:1px solid rgba(143,176,255,.35);border-bottom:1px solid rgba(143,176,255,.35);box-shadow:0 0 40px -10px rgba(47,107,255,.6) inset}
.bt-ticker::before,.bt-ticker::after{content:'';position:absolute;top:0;bottom:0;width:80px;z-index:2;pointer-events:none}
.bt-ticker::before{left:0;background:linear-gradient(90deg,#0b2a6b,transparent)}
.bt-ticker::after{right:0;background:linear-gradient(270deg,#0b2a6b,transparent)}
.bt-ticker__track{display:flex;width:max-content;animation:bt-ticker 55s linear infinite}
.bt-ticker:hover .bt-ticker__track{animation-play-state:paused}
.bt-ticker__list{display:flex;align-items:center;flex-shrink:0;margin:0;padding:0;list-style:none}
.bt-ticker__list li{display:flex;align-items:center;white-space:nowrap}
.bt-ticker__list a{color:#fff;font-family:var(--font-display);font-weight:700;font-size:17px;letter-spacing:.01em;text-decoration:none;padding:0 22px;transition:color .2s}
.bt-ticker__list a:hover{color:#bcd0ff}
.bt-ticker__star{color:#8fb0ff;font-size:14px}
@keyframes bt-ticker{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (max-width:720px){.bt-ticker{padding:13px 0}.bt-ticker__list a{font-size:14px;padding:0 15px}.bt-ticker__track{animation-duration:40s}.bt-ticker::before,.bt-ticker::after{width:36px}}
@media (prefers-reduced-motion:reduce){.bt-ticker__track{animation-duration:160s}}

/* v2.2 homepage case cards: smaller text, full dashboard */
.bt-carousel--2 .bt-case-card{padding:20px 22px 20px calc(50% + 20px)}
.bt-carousel--2 .bt-case-card__media{width:50%;background:#0d1d38;display:flex;align-items:center;justify-content:center;padding:14px}
.bt-carousel--2 .bt-case-card__media .bt-img{position:static;inset:auto;width:100%;height:auto;object-fit:contain;border-radius:10px;box-shadow:0 10px 26px -12px rgba(0,0,0,.7)}
.bt-carousel--2 .bt-case-card__tags{gap:6px}
.bt-carousel--2 .bt-case-card__tags span{font-size:9px;padding:3px 8px;letter-spacing:.08em}
.bt-carousel--2 .bt-case-card__budget{font-size:11px;margin-top:10px}
.bt-carousel--2 .bt-case-card__big{font-size:1.45rem;margin-top:8px}
.bt-carousel--2 .bt-case-card__lbl{font-size:11px;margin-top:4px}
.bt-carousel--2 .bt-case-card h3{font-size:.86rem;line-height:1.35;margin-top:8px}
.bt-carousel--2 .bt-case-card .bt-card__more{font-size:12px;padding-top:12px}
@media (max-width:640px){.bt-carousel--2 .bt-case-card{padding:18px 18px 18px calc(46% + 16px)}.bt-carousel--2 .bt-case-card__media{width:46%;padding:10px}.bt-carousel--2 .bt-case-card__big{font-size:1.3rem}.bt-carousel--2 .bt-case-card h3{font-size:.84rem}}
@media (max-width:440px){.bt-carousel--2 .bt-case-card{padding:0 18px 18px}.bt-carousel--2 .bt-case-card__media{position:relative;width:auto;padding:12px;margin:0 -18px 14px}.bt-carousel--2 .bt-case-card__media .bt-img{aspect-ratio:1200/760}}

/* v2.3 nine platform logos */
.bt-platforms__list{display:flex;flex-wrap:wrap;justify-content:center}
.bt-platforms__list li.bt-pl{flex:0 0 calc(20% - 11.2px)}
@media (max-width:820px){.bt-platforms__list li.bt-pl{flex-basis:calc(33.333% - 6.67px)}}
@media (max-width:480px){.bt-platforms__list li.bt-pl{flex-basis:calc(50% - 5px)}}

/* v2.4 ticker in brand colours */
.bt-ticker{background:linear-gradient(90deg,#0B1A33,#0F203B 30%,#122a4d 50%,#0F203B 70%,#0B1A33);border-top:1px solid rgba(48,176,240,.35);border-bottom:1px solid rgba(48,176,240,.35);box-shadow:0 0 34px -12px rgba(48,176,240,.55) inset}
.bt-ticker::before{background:linear-gradient(90deg,#0B1A33,transparent)}
.bt-ticker::after{background:linear-gradient(270deg,#0B1A33,transparent)}
.bt-ticker__list a{color:var(--ink)}
.bt-ticker__list a:hover{color:var(--accent)}
.bt-ticker__star{color:var(--accent);text-shadow:0 0 10px rgba(48,176,240,.8)}

/* v2.5 platform logos on brand navy */
.bt-platforms__list li.bt-pl{background:linear-gradient(160deg,rgba(21,41,74,.95),rgba(15,32,59,.95)) padding-box,var(--edge) border-box;border:1px solid transparent;box-shadow:0 10px 30px -16px rgba(0,0,0,.7)}
.bt-platforms__list li.bt-pl:hover{background:linear-gradient(160deg,rgba(26,50,88,.98),rgba(15,32,59,.98)) padding-box,linear-gradient(140deg,rgba(110,205,255,.9),rgba(48,176,240,.2) 45%,rgba(110,205,255,.6)) border-box;box-shadow:var(--glow)}
.bt-pl--tiktok svg,.bt-pl--squarespace svg,.bt-pl--wordpress svg,.bt-pl--wix svg{fill:#F1F5FA}
.bt-pl--meta svg{fill:#2D88FF}
.bt-pl--woocommerce svg{fill:#B98AD9}