@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap");

/* ================================================
   OCTRA.PL — SHARED DESIGN SYSTEM v2
   #0000db · Space Grotesk · JetBrains Mono
   ================================================ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --blue:    #0000db;
  --blue2:   #0000a8;
  --bluebg:  rgba(0,0,219,.06);
  --border:  #e8e8e8;
  --border2: #d0d0d0;
  --bg:      #ffffff;
  --bg1:     #f7f7fb;
  --text:    #0a0a14;
  --muted:   #5a5a6e;
  --muted2:  #9a9ab0;
  --sans:    "Space Grotesk", system-ui, sans-serif;
  --mono:    "JetBrains Mono", "Courier New", monospace;
  --r:       4px;
  --rL:      10px;
  --nav-h:   60px;
}

html{scroll-behavior:smooth;font-size:15px;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}

::-webkit-scrollbar{width:3px}
::-webkit-scrollbar-thumb{background:var(--blue);border-radius:2px}
::selection{background:rgba(0,0,219,.12)}

/* TYPE */
h1{font-family:var(--mono);font-size:clamp(2rem,5vw,3.8rem);line-height:1.05;font-weight:700;letter-spacing:-.02em}
h2{font-family:var(--mono);font-size:clamp(1.4rem,3vw,2.2rem);font-weight:700;line-height:1.15;letter-spacing:-.015em}
h3{font-size:.97rem;font-weight:600;line-height:1.4}
h4{font-size:.65rem;font-weight:700;letter-spacing:.15em;color:var(--muted);text-transform:uppercase}
p{line-height:1.85;color:var(--muted)}
a{color:var(--blue);text-decoration:none;transition:color .15s}
a:hover{color:var(--blue2)}
strong{color:var(--text);font-weight:600}
code{font-family:var(--mono);font-size:.87em;background:var(--bg1);border:1px solid var(--border);padding:1px 5px;border-radius:3px;color:var(--blue)}

/* LAYOUT */
.wrap{max-width:1080px;margin:0 auto;padding:0 40px}
section{padding:88px 0}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--border) 20%,var(--border) 80%,transparent)}

/* PROGRESS BAR */
#rp{position:fixed;top:0;left:0;right:0;height:2px;z-index:9999;pointer-events:none}
#rpb{height:100%;width:0;background:var(--blue);transition:width .1s linear}

/* SCAN LINE */
body::before{content:"";position:fixed;top:0;left:0;right:0;height:1px;background:rgba(0,0,219,.15);animation:scan 9s linear infinite;pointer-events:none;z-index:9998}
@keyframes scan{0%{top:-1px;opacity:0}5%{opacity:1}95%{opacity:.15}100%{top:100vh;opacity:0}}
@media(prefers-reduced-motion:reduce){body::before{display:none}}

/* LABEL */
.label{display:inline-flex;align-items:center;gap:8px;font-size:10px;font-weight:700;letter-spacing:.18em;color:var(--blue);margin-bottom:14px;text-transform:uppercase;font-family:var(--mono)}
.label::before{content:"//";color:var(--blue);font-weight:700}

/* ====== NAV ====== */
nav{position:fixed;top:0;left:0;right:0;z-index:500;height:var(--nav-h);background:rgba(255,255,255,.97);backdrop-filter:blur(24px);border-bottom:1px solid var(--border);display:flex;align-items:center;transition:box-shadow .2s}
nav.scrolled{box-shadow:0 2px 24px rgba(0,0,0,.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.nav-brand{display:inline-flex;flex-direction:row;align-items:center;gap:10px;text-decoration:none;flex-shrink:0;line-height:1}
.nav-brand svg{display:block;flex-shrink:0}
.nav-wordmark{font-family:'JetBrains Mono',monospace;font-size:.95rem;font-weight:700;color:#0a0a14;letter-spacing:-.02em;white-space:nowrap;display:inline-flex;align-items:center;flex-shrink:0}
.nav-links{display:flex;list-style:none;gap:2px}
.nav-links a{font-size:12.5px;color:var(--muted);font-weight:600;padding:6px 11px;border-radius:var(--r);transition:all .15s;font-family:var(--mono)}
.nav-links a:hover,.nav-links a.active{color:var(--blue);background:var(--bluebg)}
.nav-dd{position:relative}
.nav-dd>a::after{content:"▾";font-size:8px;margin-left:3px;opacity:.6}
.nav-dd-menu{position:absolute;top:calc(100% + 8px);left:0;background:#fff;border:1.5px solid var(--border);border-radius:var(--rL);padding:6px;min-width:188px;box-shadow:0 8px 32px rgba(0,0,0,.09);opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .18s;z-index:600}
.nav-dd:hover .nav-dd-menu{opacity:1;visibility:visible;transform:translateY(0)}
.nav-dd-menu a{display:flex;align-items:center;gap:8px;padding:9px 11px;border-radius:var(--r);font-size:12px;color:var(--text);font-weight:500;font-family:var(--sans)}
.nav-dd-menu a:hover{background:var(--bluebg);color:var(--blue)}
.nav-right{display:flex;gap:8px;align-items:center}
.nav-burger{display:none;flex-direction:column;gap:4px;cursor:pointer;background:none;border:none;padding:6px}
.nav-burger span{display:block;width:20px;height:1.5px;background:var(--text);transition:all .2s}
.nav-mobile{display:none;position:fixed;top:var(--nav-h);left:0;right:0;background:#fff;border-bottom:1px solid var(--border);padding:12px 32px 20px;flex-direction:column;gap:2px;z-index:499;box-shadow:0 8px 24px rgba(0,0,0,.08)}
.nav-mobile.open{display:flex}
.nav-mobile a{font-size:13px;font-family:var(--mono);color:var(--muted);padding:11px 0;border-bottom:1px solid var(--border);font-weight:600}
.nav-mobile a:last-child{border-bottom:none}
.nav-mobile a:hover{color:var(--blue)}
@media(max-width:900px){.nav-links{display:none}.nav-burger{display:flex}}

/* ====== ANNOUNCE BAR ====== */
.announce{background:var(--blue);color:#fff;text-align:center;padding:9px 32px;font-size:12px;display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;font-family:var(--mono)}
.announce a{color:rgba(255,255,255,.75);text-decoration:underline;font-size:11.5px}
.announce a:hover{color:#fff}

/* ====== BUTTONS ====== */
.btn{display:inline-flex;align-items:center;gap:6px;padding:11px 22px;border-radius:var(--r);font-size:13px;font-weight:700;font-family:var(--mono);transition:all .15s;cursor:pointer;border:none;text-decoration:none;letter-spacing:-.01em}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue2);color:#fff;transform:translateY(-1px);box-shadow:0 4px 16px rgba(0,0,219,.25)}
.btn-ghost{background:transparent;color:var(--blue);border:1.5px solid var(--blue)}
.btn-ghost:hover{background:var(--bluebg);transform:translateY(-1px)}

/* ====== CARDS ====== */
.card{background:var(--bg);border:1px solid var(--border);border-radius:var(--rL);padding:28px;transition:all .2s;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:transparent;transition:background .2s}
.card:hover{border-color:var(--blue);box-shadow:0 4px 24px rgba(0,0,219,.08)}
.card:hover::before{background:var(--blue)}

/* ====== TERMINAL ====== */
.term{background:#0a0a14;border:1px solid #1e1e3a;border-radius:var(--r);overflow:hidden;position:relative}
.term::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,0,0,.03) 2px,rgba(0,0,0,.03) 4px);pointer-events:none;z-index:1}
.term-bar{background:#0d0d20;border-bottom:1px solid #1e1e3a;padding:8px 14px;display:flex;align-items:center;gap:8px;font-size:11px;color:#4455aa;font-family:var(--mono);position:relative;z-index:2}
.term-bar .fname{color:#7788cc}
.term-bar .dots{display:flex;gap:5px;margin-right:8px}
.term-bar .dots span{width:9px;height:9px;border-radius:50%;background:#1e1e3a;display:block}
pre{margin:0;padding:16px;font-family:var(--mono);font-size:12.5px;line-height:1.85;color:#d0d8ff;overflow-x:auto;position:relative;z-index:2}
pre .kw{color:#7799ff}
pre .str{color:#aabbff}
pre .cmt{color:#3344aa;font-style:italic}
pre .num{color:#9999cc}
pre .fn{color:#ccddff}
pre .type{color:#8899ff}
pre .op{color:#5566bb}
.pre-wrap{position:relative}
.copy-btn{position:absolute;top:8px;right:8px;background:#1a1a30;border:1px solid #2a2a4a;border-radius:var(--r);padding:4px 10px;font-size:10px;color:#4455aa;cursor:pointer;font-family:var(--mono);transition:all .15s;z-index:10}
.copy-btn:hover{color:#aabbff;border-color:#4455aa}

/* ====== PAGE HERO ====== */
.page-hero{padding:calc(var(--nav-h) + 64px) 0 64px;border-bottom:1px solid var(--border)}
.page-breadcrumb{display:flex;align-items:center;gap:8px;font-size:11px;font-family:var(--mono);color:var(--muted2);margin-bottom:20px}
.page-breadcrumb a{color:var(--muted2)}
.page-breadcrumb a:hover{color:var(--blue)}
.page-breadcrumb .sep{color:var(--border2)}
.sub{font-size:1.05rem;color:var(--muted);max-width:560px;line-height:1.85;margin-top:14px}

/* ====== FOOTER ====== */
footer{background:#050510;color:#fff;padding:48px 0 24px;border-top:2px solid var(--blue)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-brand-name{font-family:var(--mono);font-size:1.05rem;font-weight:700;color:#fff;margin-bottom:4px}
.foot-brand-sub{font-size:9.5px;letter-spacing:.15em;text-transform:uppercase;color:#222255;margin-bottom:14px;font-family:var(--mono)}
.foot-brand p{font-size:12px;color:#222255;line-height:1.8;max-width:240px}
.foot-col h4{color:#222255;margin-bottom:14px;font-size:9.5px;letter-spacing:.18em}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.foot-col a{font-size:12px;color:#333377;font-family:var(--mono);transition:color .15s}
.foot-col a:hover{color:#fff}
.foot-bottom{border-top:1px solid #0a0a28;padding-top:20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.foot-bottom p,.foot-bottom a{font-size:10.5px;color:#1a1a44;font-family:var(--mono)}
.foot-bottom a:hover{color:#fff}
@media(max-width:768px){.foot-grid{grid-template-columns:1fr 1fr;gap:24px}}
@media(max-width:480px){.foot-grid{grid-template-columns:1fr}}

/* ====== REVEAL ANIMATIONS ====== */
.rv{opacity:0;transform:translateY(20px);transition:opacity .6s cubic-bezier(.16,1,.3,1),transform .6s cubic-bezier(.16,1,.3,1)}
.rv.in{opacity:1;transform:translateY(0)}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}
.rv.d3{transition-delay:.24s}.rv.d4{transition-delay:.32s}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* ====== PAGE TRANSITIONS ====== */
.page-fade{animation:pageFadeIn .4s cubic-bezier(.16,1,.3,1) both}
@keyframes pageFadeIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}

/* ====== BTT ====== */
#btt{position:fixed;bottom:28px;right:28px;z-index:400;width:38px;height:38px;border-radius:50%;border:1px solid var(--border2);cursor:pointer;background:var(--bg);color:var(--blue);font-size:14px;display:flex;align-items:center;justify-content:center;opacity:0;transform:translateY(8px);transition:all .2s;font-family:var(--mono);font-weight:700}
#btt.show{opacity:1;transform:translateY(0)}
#btt:hover{background:var(--blue);color:#fff;border-color:var(--blue)}

/* ====== MISC ====== */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.three-col{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px}
.highlight-box{background:var(--bluebg);border-left:3px solid var(--blue);padding:20px 24px;border-radius:0 var(--r) var(--r) 0;margin:24px 0}
.highlight-box p{margin:0;color:var(--text);font-size:.97rem;line-height:1.8}
.section-num{font-family:var(--mono);font-size:3.5rem;font-weight:700;color:rgba(0,0,219,.05);line-height:1;margin-bottom:-12px;display:block;user-select:none}
.steps-list{display:flex;flex-direction:column;border:1px solid var(--border);border-radius:var(--rL);overflow:hidden}
.step-item{display:grid;grid-template-columns:48px 1fr;border-bottom:1px solid var(--border)}
.step-item:last-child{border-bottom:none}
.step-num{background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:1rem;font-weight:700}
.step-body{padding:20px 24px;background:#fff}
.step-body h3{font-family:var(--mono);font-size:.95rem;margin-bottom:8px;color:var(--text)}
.step-body p{font-size:12.5px;color:var(--muted);margin:0;line-height:1.72}
.api-table{width:100%;border-collapse:collapse;font-size:12.5px}
.api-table th{background:#0a0a14;color:#4455aa;font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;padding:10px 16px;text-align:left}
.api-table td{padding:12px 16px;border-bottom:1px solid var(--border);vertical-align:top}
.api-table tr:last-child td{border-bottom:none}
.api-table tr:hover td{background:var(--bg1)}
.api-table .m{font-family:var(--mono);font-weight:700;color:var(--blue);font-size:11px}
.api-table .ep{font-family:var(--mono);font-size:11px;color:var(--text)}
@media(max-width:768px){.wrap{padding:0 20px}.two-col{grid-template-columns:1fr}.three-col{grid-template-columns:1fr}section{padding:56px 0}}