@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=JetBrains+Mono:wght@400;500&display=swap');
:root{--bg:#0a0a0a;--bg-card:#141414;--bg-input:#111;--text:#ececec;--text-s:#999;--text-m:#555;--accent:#4ade80;--accent-dim:rgba(74,222,128,.1);--accent-blue:#3b82f6;--accent-blue-dim:rgba(59,130,246,.1);--warning:#f59e0b;--error:#ef4444;--success:#4ade80;--border:#222;--radius:8px;--mono:'JetBrains Mono',monospace;--sans:'Inter',-apple-system,sans-serif;--max:960px}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--text);text-decoration:none;transition:opacity .2s}a:hover{opacity:.7}
code{font-family:var(--mono);font-size:.82em;background:var(--accent-dim);color:var(--accent);padding:2px 8px;border-radius:4px}

/* ─── Promo Banner ─── */
.promo-banner{background:linear-gradient(90deg,var(--accent),#22d3ee);color:#000;padding:10px 20px;font-size:.85rem;font-weight:600;position:relative;text-align:center}
.promo-banner a{color:#000;text-decoration:underline;text-underline-offset:3px;font-weight:700}
.promo-banner__close{background:none;border:none;color:rgba(0,0,0,.5);font-size:1.2rem;cursor:pointer;position:absolute;right:16px;top:50%;transform:translateY(-50%)}
.promo-banner.hidden{display:none}

/* ─── Nav ─── */
.nav{padding:0 24px;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50;background:rgba(10,10,10,.95);backdrop-filter:blur(12px)}
.nav__inner{max-width:var(--max);margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:56px}
.nav__logo{font-weight:700;font-size:.95rem;display:flex;align-items:center;gap:8px;color:var(--text)}
.nav__links{list-style:none;display:flex;gap:24px}
.nav__links a{font-size:.88rem;color:var(--text-s);font-weight:500}
.nav__links a:hover{color:var(--text);opacity:1}
.nav__ext{display:flex;gap:12px}
.nav__ext a{font-size:.78rem;color:var(--text-m);padding:4px 10px;border:1px solid var(--border);border-radius:6px}
.nav__ext a:hover{color:var(--text-s);border-color:#333;opacity:1}
.nav__cart{font-size:.85rem;color:var(--accent);font-weight:600;cursor:pointer}

/* ─── Buttons ─── */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 24px;border-radius:var(--radius);font-family:var(--sans);font-size:.9rem;font-weight:600;border:none;cursor:pointer;transition:all .2s}
.btn--primary{background:var(--text);color:var(--bg)}.btn--primary:hover{opacity:.85}
.btn--ghost{background:transparent;color:var(--text-s);border:1px solid var(--border)}.btn--ghost:hover{border-color:#444;color:var(--text)}
.btn--danger{background:rgba(239,68,68,.12);color:var(--error);border:1px solid rgba(239,68,68,.2)}.btn--danger:hover{background:rgba(239,68,68,.2)}
.btn--full{width:100%}
.btn:disabled{opacity:.4;cursor:not-allowed}

/* ─── Hero ─── */
.hero{max-width:var(--max);margin:0 auto;padding:60px 24px 50px;display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.hero__badge{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;color:var(--accent);margin-bottom:20px}.hero__badge::before{content:'';width:8px;height:8px;border-radius:50%;background:var(--accent)}
.hero__title{font-size:2.4rem;font-weight:700;line-height:1.15;letter-spacing:-.03em;margin-bottom:16px}.hero__title em{font-style:italic;color:var(--text-s)}
.hero__desc{font-size:1rem;color:var(--text-s);line-height:1.7;margin-bottom:28px;max-width:460px}
.hero__cta{display:flex;gap:14px}
.hero__code{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;overflow:hidden}
.hero__code-head{display:flex;align-items:center;gap:6px;padding:12px 16px;border-bottom:1px solid var(--border)}.hero__dot{width:10px;height:10px;border-radius:50%}.hero__dot--r{background:#ef4444}.hero__dot--y{background:#f59e0b}.hero__dot--g{background:#22c55e}.hero__code-label{font-family:var(--mono);font-size:.72rem;color:var(--text-m);margin-left:auto}
.hero__code pre{padding:20px;margin:0;font-family:var(--mono);font-size:.82rem;line-height:1.7;color:var(--text-s);overflow-x:auto}

/* ─── Sections ─── */
section{max-width:var(--max);margin:0 auto;padding:60px 24px}
.section-sep{border-top:1px solid var(--border)}
.sl{font-size:.78rem;color:var(--text-m);text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px}
.st{font-size:1.6rem;font-weight:700;letter-spacing:-.02em;margin-bottom:8px}
.st-sub{color:var(--text-s);font-size:.95rem;margin-bottom:32px}

/* ─── Feature Cards ─── */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feat{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:28px 24px;transition:border-color .3s}
.feat:hover{border-color:#333}
.feat__icon{font-size:1.5rem;margin-bottom:12px}
.feat h3{font-size:.95rem;font-weight:600;margin-bottom:6px}
.feat p{font-size:.85rem;color:var(--text-s);line-height:1.6}

/* ─── Video ─── */
.video-section{background:var(--bg-card);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:60px 24px}
.video-section__inner{max-width:800px;margin:0 auto;text-align:center}
.video-section__inner h2{font-size:1.5rem;margin-bottom:8px}
.video-section__inner>p{color:var(--text-s);margin-bottom:28px;font-size:.92rem}
.video-wrap{border-radius:10px;overflow:hidden;border:1px solid var(--border)}
.video-wrap iframe{display:block;width:100%;height:420px}

/* ─── Forms ─── */
.form-section{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}
.form-info h2{font-size:1.5rem;margin-bottom:12px}
.form-info p{color:var(--text-s);line-height:1.7;margin-bottom:24px;font-size:.92rem}
.form-hints{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.form-hints h4{font-size:.88rem;margin-bottom:10px}
.form-hints li{font-size:.82rem;color:var(--text-s);padding:3px 0;list-style:none}

.form-card{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:32px}
.form-card h3{font-size:1.15rem;margin-bottom:20px}
.fg{margin-bottom:16px}
.fg label{display:block;font-size:.82rem;font-weight:500;color:var(--text-s);margin-bottom:5px}
.fg input,.fg select,.fg textarea{width:100%;padding:10px 14px;background:var(--bg-input);border:1px solid var(--border);border-radius:6px;color:var(--text);font-family:var(--sans);font-size:.9rem;transition:border-color .2s}
.fg input:focus,.fg select:focus,.fg textarea:focus{outline:none;border-color:#444;box-shadow:0 0 0 2px rgba(255,255,255,.04)}
.fg input::placeholder,.fg textarea::placeholder{color:var(--text-m)}

.form-status{margin-top:12px;padding:10px 14px;border-radius:6px;font-size:.85rem;display:none}
.form-status.success{display:block;background:var(--accent-dim);color:var(--accent);border:1px solid rgba(74,222,128,.2)}
.form-status.error{display:block;background:rgba(239,68,68,.1);color:var(--error);border:1px solid rgba(239,68,68,.2)}

/* ─── Multi-step form ─── */
.ms-section{background:var(--bg-card);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:60px 24px}
.ms-inner{max-width:640px;margin:0 auto}
.ms-inner>h2{text-align:center;font-size:1.5rem;margin-bottom:6px}
.ms-inner>p{text-align:center;color:var(--text-s);margin-bottom:36px;font-size:.92rem}
.ms-form{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:36px}
.ms-progress{display:flex;justify-content:space-between;margin-bottom:36px;position:relative}
.ms-progress::before{content:'';position:absolute;top:16px;left:36px;right:36px;height:1px;background:var(--border)}
.ps{display:flex;flex-direction:column;align-items:center;gap:6px;position:relative;z-index:1}
.ps__n{width:32px;height:32px;border-radius:50%;background:var(--bg-card);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.8rem;transition:all .3s}
.ps.active .ps__n{background:var(--text);color:var(--bg);border-color:var(--text)}
.ps.done .ps__n{background:var(--accent);color:#000;border-color:var(--accent)}
.ps__l{font-size:.72rem;color:var(--text-m)}.ps.active .ps__l{color:var(--text-s)}.ps.done .ps__l{color:var(--accent)}
.ms-step{display:none}.ms-step.active{display:block;animation:fadeIn .25s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
.ms-step h3{font-size:1.05rem;margin-bottom:20px}
.ms-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:24px}
.ms-summary{background:var(--bg-card);border-radius:6px;padding:20px;font-size:.88rem;color:var(--text-s);line-height:2}

/* ─── Newsletter ─── */
.newsletter{text-align:center;padding:60px 24px;max-width:var(--max);margin:0 auto}
.newsletter h2{font-size:1.5rem;margin-bottom:8px}
.newsletter>p{color:var(--text-s);margin-bottom:24px;font-size:.92rem}
.newsletter__form{display:flex;gap:10px;max-width:420px;margin:0 auto}
.newsletter__input{flex:1;padding:10px 14px;background:var(--bg-card);border:1px solid var(--border);border-radius:6px;color:var(--text);font-family:var(--sans);font-size:.9rem}
.newsletter__input:focus{outline:none;border-color:#444}

/* ─── Products ─── */
.products-header{text-align:center;margin-bottom:36px}
.products-header h1{font-size:2rem;margin-bottom:8px}
.products-header>p{color:var(--text-s);font-size:.95rem;margin-bottom:20px}
.hints{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:18px 22px;max-width:600px;margin:0 auto}
.hints h4{font-size:.88rem;margin-bottom:10px}
.hints-grid{display:grid;grid-template-columns:1fr 1fr;gap:4px 20px;font-size:.8rem;color:var(--text-s)}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.loading{grid-column:1/-1;text-align:center;color:var(--text-m);padding:50px 0}

.pcard{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;overflow:hidden;transition:border-color .3s;cursor:pointer}
.pcard:hover{border-color:#333}
.pcard__img{height:180px;display:flex;align-items:center;justify-content:center;font-size:3.5rem;background:var(--bg);border-bottom:1px solid var(--border)}
.pcard__body{padding:18px}
.pcard__brand{font-size:.72rem;color:var(--text-m);text-transform:uppercase;letter-spacing:1px;margin-bottom:3px}
.pcard__name{font-size:1rem;font-weight:600;margin-bottom:3px}
.pcard__cat{font-size:.78rem;color:var(--text-m);margin-bottom:10px}
.pcard__foot{display:flex;align-items:center;justify-content:space-between}
.pcard__price{font-size:1.2rem;font-weight:700;color:var(--accent)}
.pcard__var{font-size:.72rem;color:var(--text-m);background:var(--bg);padding:3px 8px;border-radius:10px}

/* ─── Modal ─── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.75);backdrop-filter:blur(4px);z-index:200;display:flex;align-items:center;justify-content:center;padding:24px}
.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;max-width:500px;width:100%;padding:32px;position:relative;animation:modalIn .2s ease}
@keyframes modalIn{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}
.modal__close{position:absolute;top:14px;right:14px;background:none;border:none;color:var(--text-m);font-size:1.3rem;cursor:pointer}.modal__close:hover{color:var(--text)}

/* ─── Cart ─── */
.cart-section{border-top:1px solid var(--border)}
.cart-section h2{font-size:1.5rem;margin-bottom:20px}
.cart-container{display:grid;grid-template-columns:2fr 1fr;gap:28px;align-items:start}
.cart-empty{text-align:center;color:var(--text-m);padding:36px 0;font-size:.9rem}
.cart-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;display:flex;align-items:center;gap:16px;margin-bottom:10px}
.cart-item__icon{font-size:1.8rem;width:50px;height:50px;display:flex;align-items:center;justify-content:center;background:var(--bg);border-radius:6px;flex-shrink:0}
.cart-item__info{flex:1}.cart-item__name{font-weight:600;font-size:.92rem;margin-bottom:1px}.cart-item__meta{font-size:.78rem;color:var(--text-m)}
.cart-item__price{font-weight:700;color:var(--accent);font-size:1rem;margin-right:12px}
.cart-item__rm{background:none;border:none;color:var(--text-m);cursor:pointer;font-size:1.1rem;padding:4px 6px;border-radius:4px}.cart-item__rm:hover{color:var(--error);background:rgba(239,68,68,.1)}

.cart-summary{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:24px;position:sticky;top:72px}
.cart-summary h3{font-size:1.05rem;margin-bottom:16px}
.cs-line{display:flex;justify-content:space-between;padding:6px 0;font-size:.9rem;color:var(--text-s)}
.cs-line--total{border-top:1px solid var(--border);margin-top:8px;padding-top:14px;color:var(--text);font-weight:700;font-size:1rem}

/* ─── Checkout ─── */
.checkout{border-top:1px solid var(--border)}
.checkout h2{font-size:1.5rem;margin-bottom:20px;text-align:center}
.checkout__inner{max-width:560px;margin:0 auto}
.co-step{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:32px;margin-bottom:16px}
.co-step h3{font-size:1.05rem;margin-bottom:20px}
.co-note{font-size:.82rem;color:var(--warning);margin:14px 0}
.co-success{text-align:center;padding:16px 0}
.co-success__icon{font-size:2.5rem;margin-bottom:10px}
.co-success h3{font-size:1.3rem;margin-bottom:8px;color:var(--success)}
.co-success p{color:var(--text-s);margin-bottom:6px;font-size:.92rem}
.co-success__actions{display:flex;gap:10px;justify-content:center;margin-top:20px}

/* ─── Refund ─── */
.refund{border-top:1px solid var(--border)}
.refund__inner{max-width:460px;margin:0 auto;background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:32px}
.refund__inner h2{font-size:1.3rem;margin-bottom:6px}
.refund__inner>p{color:var(--text-s);font-size:.88rem;margin-bottom:20px}

/* ─── Footer ─── */
.footer{border-top:1px solid var(--border);padding:40px 24px}
.footer__inner{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px}
.footer__brand{font-weight:700;font-size:.95rem}
.footer__tag{color:var(--text-m);font-size:.78rem;font-weight:400;margin-top:6px}
.footer__col{display:flex;flex-direction:column;gap:8px}
.footer__col h4{font-size:.72rem;color:var(--text-m);text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px}
.footer__col a{font-size:.85rem;color:var(--text-s)}
.footer__bottom{max-width:var(--max);margin:20px auto 0;padding-top:20px;border-top:1px solid var(--border);text-align:center}
.footer__bottom p{font-size:.75rem;color:var(--text-m)}

@media(max-width:768px){
  .hero{grid-template-columns:1fr;padding:40px 20px}.hero__title{font-size:1.8rem}.hero__code{display:none}
  .features{grid-template-columns:1fr}.form-section{grid-template-columns:1fr}
  .product-grid{grid-template-columns:1fr}.cart-container{grid-template-columns:1fr}
  .footer__inner{grid-template-columns:1fr}.nav__ext{display:none}
}