/* ============================================================
   ICParts.online — shared stylesheet
   Dark industrial theme · orange accent (#ff7a1a) + blue (#2f9bff)
   Used by: index.html, products.html, memory-ics.html,
            mcu-logic.html, power-analog.html, connectors.html,
            passives.html
   ============================================================ */

:root{
  --bg:#0b1220; --surface:#111c30; --surface2:#16233c;
  --text:#e8eef7; --muted:#9fb0c8; --line:#22304d;
  --accent:#ff7a1a; --accent2:#2f9bff; --ok:#27c08a;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
img{max-width:100%}

/* ---------- nav ---------- */
header.nav{position:sticky;top:0;z-index:50;background:rgba(11,18,32,.85);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:inline-flex;text-decoration:none;color:var(--text)}
.logo .stack{position:relative;display:flex;flex-direction:column;align-items:stretch}
.logo .word{position:relative;z-index:1;font-weight:700;font-size:20px;line-height:1;
  letter-spacing:-.3px;white-space:nowrap}
.logo .word i{font-style:normal;color:var(--accent)}
.logo .echo{position:absolute;left:0;bottom:0;width:100%;height:auto;z-index:0;
  opacity:1;pointer-events:none}
nav.links{display:flex;gap:24px;font-size:14px;color:var(--muted)}
nav.links a:hover{color:var(--text)}
nav.links a.on{color:var(--text);font-weight:600}
.btn{display:inline-block;background:var(--accent);color:#0b1220;font-weight:600;
  padding:11px 20px;border-radius:8px;font-size:14px;transition:.15s;cursor:pointer;border:0;
  text-align:center;white-space:nowrap}
.btn:hover{transform:translateY(-1px);filter:brightness(1.05)}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn.sm{padding:8px 15px;font-size:13px}
@media(max-width:880px){nav.links{display:none}}

/* ---------- hero ---------- */
.hero{padding:84px 0 70px;background:
  radial-gradient(900px 400px at 80% -10%,rgba(47,155,255,.18),transparent),
  radial-gradient(700px 360px at 0% 0%,rgba(255,122,26,.14),transparent)}
.hero .kicker{display:inline-block;font-size:12px;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--accent2);border:1px solid var(--line);padding:5px 12px;border-radius:20px;margin-bottom:18px}
.hero h1{font-size:40px;line-height:1.2;font-weight:700;max-width:760px}
.hero h1 em{color:var(--accent);font-style:normal}
.hero p{color:var(--muted);font-size:17px;margin:18px 0 28px;max-width:620px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
.stats{display:flex;gap:38px;margin-top:46px;flex-wrap:wrap}
.stats div b{display:block;font-size:26px;color:var(--text)}
.stats div span{color:var(--muted);font-size:13px}

/* ---------- sections ---------- */
section{padding:64px 0}
.sec-head{margin-bottom:34px}
.sec-head h2{font-size:28px;font-weight:700}
.sec-head p{color:var(--muted);margin-top:8px;max-width:760px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:22px;
  transition:.15s;display:block}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card h3{font-size:17px;margin-bottom:8px;color:var(--text)}
.card p{color:var(--muted);font-size:14px}
.card .tag{display:inline-block;margin-top:14px;font-size:12px;color:var(--accent2);
  border:1px solid var(--line);padding:3px 10px;border-radius:20px}
.card .more{display:inline-block;margin-top:16px;font-size:13px;color:var(--accent);font-weight:600}
.card:hover .more{text-decoration:underline}

/* ---------- why ---------- */
.why{background:var(--surface2)}
.why ul{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.why li{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px;font-size:14px;color:var(--muted)}
.why li b{color:var(--ok);display:block;margin-bottom:6px}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
@media(max-width:720px){.contact-grid{grid-template-columns:1fr}}
form .field{margin-bottom:14px}
label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
input,textarea,select{width:100%;background:var(--surface);border:1px solid var(--line);
  color:var(--text);padding:11px 13px;border-radius:8px;font-size:14px;font-family:inherit}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent2)}
textarea{resize:vertical;min-height:110px}
.info p{color:var(--muted);font-size:14px;margin-bottom:10px}
.info b{color:var(--text)}
.info a{color:var(--accent2)}
.info a:hover{text-decoration:underline}
.note{font-size:12px;color:var(--muted);margin-top:10px}
.contact-list{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:22px}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:30px 0;color:var(--muted);font-size:13px}
footer .f-in{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center}
footer a{color:var(--accent2)}
footer a:hover{text-decoration:underline}

/* ============================================================
   Secondary pages
   ============================================================ */

/* breadcrumbs */
.crumbs{padding:20px 0 0;font-size:13px;color:var(--muted)}
.crumbs a:hover{color:var(--text)}
.crumbs span{opacity:.45;margin:0 8px}

/* page hero */
.page-hero{padding:40px 0 34px}
.page-hero .tagline{display:block;color:var(--accent2);font-size:12.5px;letter-spacing:1.7px;
  text-transform:uppercase;margin-bottom:14px}
.page-hero h1{font-size:34px;font-weight:700;line-height:1.25;max-width:840px}
.page-hero h1 em{color:var(--accent);font-style:normal}
.page-hero p.lead{color:var(--muted);font-size:16.5px;margin-top:16px;max-width:780px}

/* spec table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:640px}
th,td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--surface2);color:var(--text);font-size:13px;white-space:nowrap;font-weight:600}
td{color:var(--muted)}
td b{color:var(--text);font-weight:600}
tr:last-child td{border-bottom:0}
code{background:var(--surface2);border:1px solid var(--line);border-radius:4px;
  padding:1px 5px;font-size:12.5px;color:var(--accent2);word-break:break-word}

/* sub heads / lists */
.subhead{font-size:16px;margin:38px 0 14px;color:var(--text);font-weight:600}
.subhead:first-child{margin-top:0}
.ticks{list-style:none;display:grid;gap:10px}
.ticks li{color:var(--muted);font-size:14.5px;padding-left:24px;position:relative}
.ticks li:before{content:"";position:absolute;left:0;top:7px;width:9px;height:9px;border-radius:2px;
  background:var(--accent);opacity:.85}
.ticks li b{color:var(--text)}
.sec-note{font-size:12.5px;color:var(--muted);margin-top:14px;line-height:1.7}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:34px}
@media(max-width:820px){.two-col{grid-template-columns:1fr;gap:26px}}

/* CTA band */
.cta-band{background:var(--surface2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:52px 0}
.cta-band .in{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap}
.cta-band h2{font-size:24px;font-weight:700}
.cta-band p{color:var(--muted);margin-top:8px;font-size:15px;max-width:620px}
.cta-band .acts{display:flex;gap:12px;flex-wrap:wrap}

/* step list (how to order) */
ol.steps{list-style:none;counter-reset:s;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
ol.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--line);
  border-radius:12px;padding:20px;font-size:14px;color:var(--muted);position:relative;padding-top:44px}
ol.steps li:before{content:counter(s,decimal-leading-zero);position:absolute;top:16px;left:20px;
  font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.5px}
ol.steps li b{display:block;color:var(--text);margin-bottom:6px;font-size:15px}

/* ============================================================
   Form states (async submit feedback)
   ============================================================ */
.note a{color:var(--accent2)}
.note a:hover{text-decoration:underline}
.note.ok{color:var(--ok)}
.note.err{color:#ff8a8a}
.btn[disabled]{opacity:.6;cursor:default;transform:none;filter:none}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0;pointer-events:none}