/* ===================================================================
   hp-tank415.ru — дизайн-система «Ink Gauge»
   Сигнатурный элемент: вертикальные индикаторы уровня чернил
   (K/C/M/Y) — отражают суть модели (СНПЧ, 4 цвета). Тёплая
   коралловая палитра на тёмном фоне — не похоже на прежний
   ink-drop CMYK стиль другого Ink Tank проекта.
=================================================================== */

:root{
  --void:#120A10;
  --panel:#1C1119;
  --panel-2:#241621;
  --coral:#FF4D6D;
  --coral-dim:#D93A57;
  --amber:#FFB84D;
  --text:#F5ECEF;
  --steel:#A6939C;
  --border:#33202B;
  --radius:10px;
  --shadow:0 10px 30px -14px rgba(0,0,0,.6);
  --font-display:"Segoe UI",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  --font-body:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"Cascadia Code","Consolas",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-body);color:var(--text);background:var(--void);line-height:1.62;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--coral);text-decoration:underline}
a:hover{color:var(--coral-dim)}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.2;letter-spacing:-.01em;margin:0 0 .6em;color:var(--text)}
h1{font-size:clamp(1.85rem,3.6vw,2.5rem)}
h2{font-size:clamp(1.3rem,2.3vw,1.7rem)}
h3{font-size:1.08rem}
p{margin:0 0 1.1em;color:#D9CDD3}
ul,ol{margin:0 0 1.1em;padding-left:1.3em;color:#D9CDD3}
li{margin-bottom:.4em}
.container{max-width:1080px;margin:0 auto;padding:0 20px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:2px solid var(--coral);outline-offset:2px}

.eyebrow{font-family:var(--font-mono);font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;color:var(--coral);display:flex;align-items:center;gap:.6em;margin-bottom:.7em}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--coral)}

/* ---------- Signature ink gauge ---------- */
.ink-gauge{display:flex;gap:10px;align-items:flex-end;height:110px}
.gauge-bar{width:20px;border-radius:5px;background:var(--panel-2);border:1px solid var(--border);position:relative;overflow:hidden;height:100%;display:flex;align-items:flex-end}
.gauge-fill{width:100%;border-radius:4px}
.gauge-bar span{position:absolute;bottom:-20px;left:50%;transform:translateX(-50%);font-family:var(--font-mono);font-size:.62rem;color:var(--steel)}

/* ---------- Meta badges ---------- */
.meta-badges{display:flex;flex-wrap:wrap;gap:10px;margin:1.4em 0}
.meta-badge{background:var(--panel-2);border:1px solid var(--border);border-radius:8px;padding:8px 14px;min-width:110px}
.meta-badge span{display:block;font-family:var(--font-mono);font-size:.68rem;text-transform:uppercase;letter-spacing:.06em;color:var(--steel);margin-bottom:2px}
.meta-badge b{font-size:.92rem;color:var(--text)}

/* ---------- Header ---------- */
.site-header{background:rgba(18,10,16,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;max-width:1080px;margin:0 auto;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:1rem;white-space:nowrap;text-decoration:none}
.brand:hover{text-decoration:none}
.brand .dot{width:10px;height:10px;border-radius:3px;background:var(--coral);box-shadow:0 0 8px 1px rgba(255,77,109,.6)}
.brand-sub{color:var(--steel);font-weight:500;font-size:.82rem;margin-left:2px}
nav.mainnav{display:flex;gap:2px;flex-wrap:wrap}
nav.mainnav a{color:var(--steel);font-size:.85rem;padding:8px 10px;border-radius:6px;text-decoration:none}
nav.mainnav a:hover,nav.mainnav a.active{background:rgba(255,77,109,.14);color:var(--coral)}
.nav-toggle{display:none;background:none;border:0;color:var(--text);font-size:1.5rem;cursor:pointer;padding:4px 8px}
@media (max-width:960px){
  nav.mainnav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--void);flex-direction:column;padding:10px 20px 18px;border-bottom:1px solid var(--border)}
  nav.mainnav.open{display:flex}
  .nav-toggle{display:block}
}

/* ---------- Hero ---------- */
.hero{background:radial-gradient(900px 420px at 15% -10%, rgba(255,77,109,.14), transparent 60%),radial-gradient(900px 420px at 100% 0%, rgba(255,184,77,.08), transparent 55%),var(--void);padding:50px 0 56px;border-bottom:1px solid var(--border)}
.hero .container{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero h1,.hero h2{color:#fff}
.hero p.lead{color:#D9CDD3;font-size:1.04rem;max-width:56ch}
.hero-photo img{border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow)}
@media (max-width:860px){.hero .container{grid-template-columns:1fr}}

.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:1.6em}
.btn{display:inline-flex;align-items:center;gap:10px;padding:13px 20px;border-radius:var(--radius);font-weight:700;font-size:.94rem;background:var(--coral);color:#2A0810;border:none;cursor:pointer;box-shadow:var(--shadow);text-decoration:none}
.btn:hover{color:#2A0810;filter:brightness(1.08)}
.btn .sub{display:block;font-weight:500;font-size:.72rem;opacity:.82;font-family:var(--font-mono)}
.btn.ghost{background:transparent;color:var(--text);border:1.5px solid var(--border)}
.btn.ghost:hover{border-color:var(--coral);color:var(--coral)}

/* ---------- Sections ---------- */
section{padding:50px 0}
section.alt{background:var(--panel);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
@media (max-width:860px){.grid-3{grid-template-columns:1fr 1fr}.grid-2{grid-template-columns:1fr}}
@media (max-width:560px){.grid-3{grid-template-columns:1fr}}

.card{background:var(--panel-2);border:1px solid var(--border);border-radius:var(--radius);padding:22px}
.card h3{margin-bottom:.4em;display:flex;align-items:center;gap:10px}
.card .ico{width:34px;height:34px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-weight:800;font-size:.78rem;color:#2A0810;background:var(--coral);flex:none}

/* ---------- Steps ---------- */
.steps{counter-reset:step}
.step{display:grid;grid-template-columns:44px 1fr;gap:20px;position:relative;padding-bottom:32px}
.step:last-child{padding-bottom:0}
.step::before{counter-increment:step;content:"0" counter(step);width:38px;height:38px;border-radius:8px;background:var(--coral);color:#2A0810;font-family:var(--font-mono);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:.9rem;z-index:1}
.step:nth-child(3n+2)::before{background:var(--amber)}
.step:not(:last-child)::after{content:"";position:absolute;left:18px;top:38px;bottom:-2px;width:1px;background:repeating-linear-gradient(180deg,var(--border) 0 5px,transparent 5px 10px)}
.step .content{padding-top:4px}
.step img{border-radius:var(--radius);border:1px solid var(--border);margin-top:12px;box-shadow:var(--shadow)}
.step h3{margin-bottom:.3em}

/* ---------- Table ---------- */
table.specs{width:100%;border-collapse:collapse;font-size:.94rem}
table.specs th,table.specs td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--border)}
table.specs th{width:42%;color:var(--steel);font-weight:600;font-family:var(--font-mono);font-size:.8rem}
table.specs tr:last-child th,table.specs tr:last-child td{border-bottom:none}

/* ---------- FAQ ---------- */
details.faq{background:var(--panel-2);border:1px solid var(--border);border-radius:var(--radius);padding:4px 18px;margin-bottom:10px}
details.faq summary{cursor:pointer;font-weight:700;padding:14px 0;list-style:none;display:flex;justify-content:space-between;gap:12px;color:var(--text)}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";font-family:var(--font-mono);font-size:1.2rem;color:var(--coral);flex:none}
details.faq[open] summary::after{content:"–"}
details.faq p{padding-bottom:14px;color:var(--steel)}

/* ---------- OS strip ---------- */
.os-strip{display:flex;flex-wrap:wrap;gap:8px;margin:1.4em 0}
.os-strip a{padding:8px 13px;border:1px solid var(--border);background:var(--panel-2);font-size:.86rem;font-weight:600;color:var(--text);border-radius:var(--radius);text-decoration:none}
.os-strip a:hover{border-color:var(--coral);color:var(--coral)}
.os-strip a.active{background:var(--coral);border-color:var(--coral);color:#2A0810}

/* ---------- Notice ---------- */
.notice{border-left:3px solid var(--coral);background:var(--panel-2);padding:15px 18px;margin:1.4em 0;font-size:.95rem;border-radius:0 var(--radius) var(--radius) 0}
.notice.warn{border-color:var(--amber)}
.notice.danger{border-color:#E4536B}
.notice strong{color:var(--text)}

/* ---------- Footer ---------- */
.site-footer{background:#0D070B;color:rgba(245,236,239,.6);padding:44px 0 26px;font-size:.9rem;border-top:1px solid var(--border)}
.site-footer a{color:rgba(245,236,239,.82)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px;margin-bottom:28px}
.footer-grid h4{color:var(--coral);font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:.9em;font-family:var(--font-mono)}
.footer-grid ul{list-style:none;padding:0;margin:0}
.footer-grid li{margin-bottom:.5em}
.footer-bottom{border-top:1px solid var(--border);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.8rem;color:rgba(245,236,239,.4)}
@media (max-width:700px){.footer-grid{grid-template-columns:1fr}}

/* ---------- Cookie consent ---------- */
#cookie-consent{position:fixed;left:16px;right:16px;bottom:16px;z-index:200;max-width:640px;margin:0 auto;background:var(--panel-2);color:var(--text);border:1px solid var(--border);padding:18px 20px;box-shadow:0 20px 50px -10px rgba(0,0,0,.6);display:none;gap:14px;align-items:center;flex-wrap:wrap;border-radius:var(--radius)}
#cookie-consent.show{display:flex}
#cookie-consent p{margin:0;font-size:.86rem;color:#D9CDD3;flex:1 1 260px}
#cookie-consent button{border:none;padding:9px 16px;font-weight:700;font-size:.84rem;cursor:pointer;background:var(--coral);color:#2A0810;border-radius:6px}

/* ---------- Article layout ---------- */
.prose{max-width:74ch}
.prose h2{margin-top:1.4em}
.article-wrap{display:grid;grid-template-columns:1fr 260px;gap:44px}
@media (max-width:900px){.article-wrap{grid-template-columns:1fr}}
.side{align-self:start;position:sticky;top:80px}
.side .card{padding:18px}
.side .card h3{font-size:.95rem;color:var(--coral)}
.toc{font-size:.86rem}
.toc a{display:block;padding:5px 0;color:var(--steel);text-decoration:none}
.toc a:hover{color:var(--coral)}