/* ============================================================
   SEC4CHECK — LIGHT / CORPORATE · LIGHT BLUE
   Bright corporate base, light-blue accent, navy ink.
   Hacker edge kept DELICATE: mono tags, faint grid,
   one light console card. No dark panels.
   ============================================================ */

*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }

:root{
  --paper:   #ffffff;
  --paper-2: #f3f7fd;     /* light-blue tinted section */
  --paper-3: #e8f0fb;
  --ink:     #0d1b2e;     /* navy ink */
  --ink-2:   #46586e;
  --ink-3:   #8696ab;

  --blue:     #2f6dfc;    /* light-blue primary */
  --blue-d:   #1d52e0;
  --sky:      #4aa8ff;    /* lighter accent */
  --blue-soft:#e9f1ff;
  --blue-line:rgba(47,109,252,.22);

  --line:    rgba(13,27,46,.10);
  --line-2:  rgba(13,27,46,.16);

  --d: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --m: 'JetBrains Mono', ui-monospace, monospace;
  --b: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --r: 14px;
  --t: .26s cubic-bezier(.4,0,.2,1);
  --wrap: 1180px;
  --sh-sm: 0 1px 2px rgba(13,27,46,.05);
  --sh-md: 0 16px 40px -18px rgba(31,82,224,.28);
  --sh-lg: 0 40px 80px -34px rgba(13,27,46,.30);
}

html{ scroll-behavior:smooth; }
body{ font-family:var(--b); background:var(--paper); color:var(--ink); line-height:1.6; overflow-x:hidden; -webkit-font-smoothing:antialiased; }
.wrap{ max-width:var(--wrap); margin:0 auto; padding:0 1.6rem; }
section{ position:relative; }
::selection{ background:var(--blue); color:#fff; }

/* delicate mono tag */
.label,.kick{ font-family:var(--m); font-size:.74rem; letter-spacing:.08em; text-transform:uppercase; color:var(--blue-d); display:inline-flex; align-items:center; gap:.5rem; }
.kick::before{ content:'>'; color:var(--sky); font-weight:600; }

/* ---------- Loader ---------- */
.loader{ position:fixed; inset:0; z-index:9999; background:var(--paper); display:flex; align-items:center; justify-content:center; transition:opacity .45s ease; }
.loader.hidden{ opacity:0; pointer-events:none; }
.boot{ width:230px; text-align:center; }
.boot-logo{ height:42px; margin:0 auto 1.4rem; display:block; }
.boot-line{ font-family:var(--m); font-size:.74rem; color:var(--ink-3); margin-bottom:.8rem; min-height:1em; }
.boot-line b{ color:var(--blue-d); }
.boot-bar{ height:2px; background:var(--paper-3); overflow:hidden; border-radius:2px; }
.boot-fill{ height:100%; width:0; background:var(--blue); transition:width .2s ease; }

/* ---------- Nav ---------- */
.nav{ position:fixed; top:0; left:0; width:100%; z-index:1000; transition:var(--t); border-bottom:1px solid transparent; }
.nav.scrolled{ background:rgba(255,255,255,.86); backdrop-filter:blur(16px) saturate(150%); border-bottom-color:var(--line); box-shadow:var(--sh-sm); }
.nav-in{ max-width:var(--wrap); margin:0 auto; padding:1.05rem 1.6rem; display:flex; align-items:center; justify-content:space-between; }
.brand{ cursor:pointer; display:flex; align-items:center; }
.brand img{ height:28px; }
.nav-links{ display:flex; align-items:center; gap:2.2rem; }
.nav-links a{ font-size:.92rem; font-weight:500; color:var(--ink-2); text-decoration:none; transition:var(--t); position:relative; }
.nav-links a:not(.nav-cta)::after{ content:''; position:absolute; left:0; bottom:-5px; width:0; height:2px; background:var(--blue); transition:var(--t); }
.nav-links a:hover, .nav-links a.active{ color:var(--ink); }
.nav-links a:not(.nav-cta):hover::after, .nav-links a.active:not(.nav-cta)::after{ width:100%; }
.nav-cta{ color:#fff!important; background:var(--ink); padding:.58rem 1.05rem; border-radius:9px; font-weight:600; transition:var(--t); }
.nav-cta:hover{ background:#1a2c45; transform:translateY(-1px); }
.burger{ display:none; flex-direction:column; gap:5px; cursor:pointer; padding:6px; }
.burger span{ width:24px; height:2px; background:var(--ink); transition:var(--t); }

/* ---------- Language switcher ---------- */
.lang-switch{ display:inline-flex; align-items:center; gap:.15rem; margin-left:1.6rem; padding:.28rem .4rem .28rem .55rem; border:1px solid var(--line-2); border-radius:999px; background:rgba(255,255,255,.55); backdrop-filter:blur(8px); font-family:var(--m); font-size:.7rem; font-weight:600; letter-spacing:.04em; transition:var(--t); }
.lang-switch:hover{ border-color:var(--blue-line); box-shadow:0 4px 14px -6px rgba(47,109,252,.35); }
.lang-switch > i{ color:var(--blue); font-size:.8rem; margin-right:.2rem; }
.lang-switch a{ color:var(--ink-3); text-decoration:none; padding:.24rem .56rem; line-height:1; border-radius:999px; transition:var(--t); position:relative; }
.lang-switch a::after{ display:none !important; }
.lang-switch a:hover{ color:var(--ink); }
.lang-switch a.active{ background:var(--blue); color:#fff; box-shadow:0 2px 10px -2px rgba(47,109,252,.45); }
@media (max-width:860px){ .lang-switch{ margin-left:auto; margin-right:.9rem; } }

/* ---------- Hero ---------- */
.hero{ min-height:100vh; display:flex; align-items:center; padding-top:96px; overflow:hidden; position:relative;
  background:radial-gradient(720px 460px at 14% 2%, var(--blue-soft), transparent 70%), radial-gradient(560px 460px at 92% 96%, #eaf6ff, transparent 66%), var(--paper); }
.hero::before{
  content:''; position:absolute; inset:0; z-index:0;
  background-image:linear-gradient(rgba(13,27,46,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(13,27,46,.04) 1px, transparent 1px);
  background-size:32px 32px;
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 70% 40%, #000 30%, transparent 78%);
  mask-image:radial-gradient(ellipse 80% 60% at 70% 40%, #000 30%, transparent 78%);
}
.hero-grid{ position:relative; z-index:2; max-width:var(--wrap); margin:0 auto; padding:0 1.6rem; width:100%; display:grid; grid-template-columns:1.08fr .92fr; gap:3.4rem; align-items:center; }
.hero-copy .kick{ margin-bottom:1.6rem; }
.hero h1{ font-family:var(--d); font-weight:700; font-size:clamp(2.6rem,5.6vw,4.4rem); line-height:1.03; letter-spacing:-.035em; margin-bottom:1.4rem; }
.hero h1 .g{ color:var(--blue); }
.hero-sub{ font-size:1.14rem; color:var(--ink-2); max-width:36rem; margin-bottom:2.2rem; }
.hero-actions{ display:flex; gap:1rem; flex-wrap:wrap; align-items:center; }
.hero-trust{ margin-top:2.6rem; padding-top:1.7rem; border-top:1px solid var(--line); display:flex; gap:2.2rem; flex-wrap:wrap; }
.hero-trust div b{ font-family:var(--d); font-weight:700; font-size:1.35rem; display:block; letter-spacing:-.02em; }
.hero-trust div span{ font-family:var(--m); font-size:.7rem; color:var(--ink-3); letter-spacing:.03em; text-transform:uppercase; }

.btn{ font-size:.86rem; font-weight:500; display:inline-flex; align-items:center; gap:.45rem; padding:.72rem 1.25rem; border-radius:9px; letter-spacing:.005em; text-decoration:none; cursor:pointer; border:1px solid transparent; transition:var(--t); white-space:nowrap; }
.btn-primary{ background:var(--ink); color:#fff; box-shadow:0 6px 18px -10px rgba(13,27,46,.55); }
.btn-primary:hover{ background:#1a2c45; transform:translateY(-2px); box-shadow:0 12px 26px -10px rgba(13,27,46,.5); }
.btn-ghost{ background:var(--paper); color:var(--ink); border-color:var(--line-2); }
.btn-ghost:hover{ border-color:var(--ink); background:var(--paper-2); color:var(--ink); }
.btn .ar{ transition:var(--t); color:var(--sky); } .btn:hover .ar{ transform:translateX(4px); }

/* ---------- Light console card (delicate hacker touch) ---------- */
.term{ background:#fff; border:1px solid var(--line); border-radius:16px; overflow:hidden; box-shadow:var(--sh-lg); }
.term-bar{ display:flex; align-items:center; gap:.5rem; padding:.85rem 1rem; border-bottom:1px solid var(--line); background:var(--paper-2); }
.term-bar i{ width:11px; height:11px; border-radius:50%; }
.term-bar i:nth-child(1){ background:#ff5f57; } .term-bar i:nth-child(2){ background:#febc2e; } .term-bar i:nth-child(3){ background:#28c840; }
.term-bar em{ margin-left:.7rem; font-family:var(--m); font-style:normal; font-size:.74rem; color:var(--ink-3); }
.term-body{ font-family:var(--m); font-size:.82rem; line-height:1.85; padding:1.3rem 1.4rem 1.6rem; color:var(--ink-2); min-height:288px; white-space:pre-wrap; background:#fff; }
.term-body .p{ color:var(--blue); } .term-body .c{ color:var(--sky); } .term-body .ok{ color:var(--blue-d); }
.term-body .warn{ color:#c2710a; } .term-body .crit{ color:#d6324a; }
.term-cursor{ display:inline-block; width:8px; height:1.05em; background:var(--blue); vertical-align:-2px; animation:blink 1.1s steps(1) infinite; }
@keyframes blink{ 50%{ opacity:0; } }

/* ---------- Standards strip ---------- */
.strip{ border-top:1px solid var(--line); border-bottom:1px solid var(--line); background:var(--paper-2); }
.strip .wrap{ display:flex; align-items:center; justify-content:center; gap:1rem 2.4rem; flex-wrap:wrap; padding:1.5rem 1.6rem; }
.strip .lead{ font-family:var(--m); font-size:.74rem; color:var(--ink-3); text-transform:uppercase; letter-spacing:.05em; }
.strip span:not(.lead){ font-family:var(--m); font-size:.8rem; letter-spacing:.03em; color:var(--ink-2); }
.strip span:not(.lead)::before{ content:'['; color:var(--sky); margin-right:.25rem; }
.strip span:not(.lead)::after{ content:']'; color:var(--sky); margin-left:.25rem; }

/* ---------- Section scaffolding ---------- */
.block{ padding:7rem 0; }
.head{ display:flex; flex-direction:column; align-items:flex-start; gap:.4rem; margin-bottom:3.2rem; }
.head h2{ font-family:var(--d); font-weight:700; font-size:clamp(2rem,3.8vw,3rem); letter-spacing:-.03em; line-height:1.06; max-width:24ch; }
.head p{ color:var(--ink-2); margin-top:.5rem; max-width:60ch; }
.head .label{ display:block; }

/* ---------- Services ---------- */
.services{ background:var(--paper); }
.svc-cat{ font-family:var(--m); font-size:.76rem; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-3); margin:2.6rem 0 1.3rem; }
.svc-cat::before{ content:'// '; color:var(--sky); }
.svc-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1.3rem; }
.svc{ position:relative; background:var(--paper); border:1px solid var(--line); border-radius:var(--r); padding:1.8rem; box-shadow:var(--sh-sm); transition:var(--t); overflow:hidden; }
.svc::after{ content:''; position:absolute; left:0; right:0; top:0; height:3px; background:linear-gradient(90deg,var(--blue),var(--sky)); transform:scaleX(0); transform-origin:left; transition:var(--t); }
.svc:hover{ transform:translateY(-5px); box-shadow:var(--sh-md); border-color:var(--blue-line); }
.svc:hover::after{ transform:scaleX(1); }
.svc .n{ font-family:var(--m); font-size:.76rem; color:var(--ink-3); margin-bottom:1rem; }
.svc .n b{ color:var(--blue-d); }
.svc-badge{ position:absolute; top:1.6rem; right:1.6rem; font-family:var(--m); font-size:.6rem; font-weight:600; letter-spacing:.04em; text-transform:uppercase; color:var(--blue-d); background:var(--blue-soft); border:1px solid var(--blue-line); padding:.25rem .55rem; border-radius:6px; }
.svc h4{ font-family:var(--d); font-size:1.32rem; font-weight:600; letter-spacing:-.01em; margin-bottom:.25rem; }
.svc .role{ color:var(--ink-2); font-size:.92rem; margin-bottom:.5rem; }
.svc .time{ font-family:var(--m); font-size:.8rem; color:var(--blue-d); margin-bottom:1.2rem; }
.svc ul{ list-style:none; border-top:1px solid var(--line); padding-top:.9rem; }
.svc li{ font-size:.88rem; color:var(--ink-2); padding:.42rem 0 .42rem 1.5rem; position:relative; }
.svc li::before{ content:'✓'; position:absolute; left:0; color:var(--blue); font-weight:700; font-size:.8rem; }

/* ---------- Process (light-blue band) ---------- */
.process{ background:var(--paper-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.steps{ display:grid; grid-template-columns:repeat(4,1fr); gap:1.2rem; }
.step{ background:var(--paper); border:1px solid var(--line); border-radius:12px; padding:1.6rem; transition:var(--t); position:relative; }
.step:hover{ transform:translateY(-4px); box-shadow:var(--sh-md); border-color:var(--blue-line); }
.step .sn{ font-family:var(--m); font-size:.74rem; color:var(--blue-d); margin-bottom:.9rem; }
.step h4{ font-family:var(--d); font-size:1.12rem; font-weight:600; color:var(--ink); margin-bottom:.4rem; }
.step p{ font-size:.88rem; color:var(--ink-2); }

/* ---------- About ---------- */
.about{ background:var(--paper); }
.about .wrap{ display:grid; grid-template-columns:.85fr 1.15fr; gap:4rem; align-items:center; }
.about-photo{ position:relative; }
.about-photo img{ width:100%; max-width:320px; border-radius:14px; display:block; box-shadow:var(--sh-md); border:1px solid var(--line); filter:grayscale(1) contrast(1.02); }
.about-photo figcaption{ position:absolute; bottom:-14px; left:50%; transform:translateX(-50%); background:#fff; color:var(--ink); font-family:var(--m); font-size:.72rem; letter-spacing:.01em; padding:.55rem 1rem; border:1px solid var(--line); border-radius:999px; box-shadow:var(--sh-md); display:inline-flex; align-items:center; gap:.5rem; white-space:nowrap; }
.about-photo figcaption::before{ content:''; width:7px; height:7px; border-radius:50%; background:var(--blue); box-shadow:0 0 0 3px rgba(47,109,252,.16); flex-shrink:0; }
.about-photo figcaption b{ color:var(--blue-d); font-weight:600; }
.about-copy .label{ display:block; margin-bottom:1.3rem; }
.about-copy h2{ font-family:var(--d); font-weight:700; font-size:clamp(1.8rem,3.4vw,2.6rem); letter-spacing:-.03em; margin-bottom:1.5rem; line-height:1.1; }
.about-copy p{ color:var(--ink-2); font-size:1.05rem; margin-bottom:1.2rem; max-width:50ch; }
.about-copy strong{ color:var(--ink); font-weight:600; }
.certs{ display:grid; grid-template-columns:repeat(3,1fr); gap:.6rem; margin-top:2rem; max-width:430px; }
.cert{ display:flex; align-items:center; justify-content:center; gap:.55rem; padding:.7rem .6rem; background:var(--paper); border:1px solid var(--line); border-radius:11px; text-decoration:none; box-shadow:var(--sh-sm); transition:var(--t); }
.cert:hover{ transform:translateY(-3px); border-color:var(--blue); box-shadow:var(--sh-md); }
.cert img{ width:30px; height:30px; object-fit:contain; }
.cert b{ font-family:var(--d); font-size:.86rem; color:var(--ink); }

/* ---------- Blog ---------- */
.blog{ background:var(--paper-2); }
.posts{ display:grid; grid-template-columns:repeat(3,1fr); gap:1.4rem; }
.post{ background:var(--paper); border:1px solid var(--line); border-radius:var(--r); overflow:hidden; text-decoration:none; color:inherit; display:flex; flex-direction:column; box-shadow:var(--sh-sm); transition:var(--t); }
.post:hover{ transform:translateY(-5px); box-shadow:var(--sh-md); border-color:var(--blue-line); }
.post-img{ height:158px; background-size:cover; background-position:center; position:relative; filter:grayscale(1); transition:filter .4s ease; }
.post:hover .post-img{ filter:grayscale(0); }
.post-img::after{ content:''; position:absolute; inset:0; background:linear-gradient(180deg,transparent 55%,rgba(13,27,46,.35)); }
.post-body{ padding:1.2rem 1.3rem 1.4rem; flex:1; display:flex; flex-direction:column; }
.post-meta{ font-family:var(--m); font-size:.7rem; color:var(--blue-d); display:flex; gap:1rem; margin-bottom:.6rem; }
.post-meta span:last-child{ color:var(--ink-3); }
.post h3,.post h4{ font-family:var(--d); font-weight:600; font-size:1.06rem; line-height:1.3; letter-spacing:-.01em; margin-bottom:.55rem; color:var(--ink); }
.post p{ font-size:.86rem; color:var(--ink-2); display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; margin-bottom:1rem; }
.post .more{ margin-top:auto; font-family:var(--m); font-size:.76rem; font-weight:500; color:var(--blue-d); }
.blog-all{ margin-top:2.6rem; }
.blog-all a{ display:inline-flex; align-items:center; gap:.6rem; font-family:var(--m); font-size:.86rem; color:var(--ink); text-decoration:none; border-bottom:1px solid var(--blue); padding-bottom:5px; transition:var(--t); }
.blog-all a:hover{ color:var(--blue-d); }

/* ---------- Contact (light-blue band) ---------- */
.contact{ background:linear-gradient(180deg,var(--paper-2),#eaf2fe); border-top:1px solid var(--line); }
.contact .wrap{ padding:7rem 1.6rem; }
.contact-grid{ display:grid; grid-template-columns:1.05fr .95fr; gap:3.4rem; align-items:center; }
.contact h2{ font-family:var(--d); font-weight:700; font-size:clamp(2rem,3.8vw,3rem); letter-spacing:-.03em; line-height:1.06; margin:1rem 0 1.1rem; }
.contact p{ color:var(--ink-2); margin-bottom:2rem; max-width:42ch; }
.contact-actions{ display:flex; gap:1rem; flex-wrap:wrap; }
.vcard{ background:var(--paper); border:1px solid var(--line); border-radius:16px; padding:1.7rem; box-shadow:var(--sh-lg); }
.vcard::before{ content:''; display:block; height:3px; background:linear-gradient(90deg,var(--blue),var(--sky)); border-radius:3px; margin:-1.7rem -1.7rem 1.4rem; }
.vcard-top{ display:flex; align-items:center; gap:1rem; padding-bottom:1.2rem; border-bottom:1px solid var(--line); margin-bottom:1.1rem; }
.vcard-top img{ width:58px; height:58px; border-radius:12px; object-fit:cover; border:1px solid var(--line); filter:grayscale(1); }
.vcard-top b{ font-family:var(--d); font-size:1.12rem; color:var(--ink); display:block; }
.vcard-top .r{ font-family:var(--m); font-size:.74rem; color:var(--blue-d); }
.vrow{ display:flex; align-items:center; gap:.85rem; padding:.55rem 0; }
.vrow i{ width:34px; height:34px; border-radius:9px; display:flex; align-items:center; justify-content:center; background:var(--blue-soft); color:var(--blue-d); font-size:.88rem; }
.vrow span{ font-family:var(--m); font-size:.64rem; color:var(--ink-3); display:block; letter-spacing:.04em; text-transform:uppercase; }
.vrow a{ color:var(--ink); text-decoration:none; font-size:.9rem; transition:var(--t); }
.vrow a:hover{ color:var(--blue-d); }
.vcard-foot{ margin-top:1rem; padding-top:1rem; border-top:1px solid var(--line); display:flex; gap:1.3rem; font-family:var(--m); font-size:.72rem; color:var(--ink-2); }
.vcard-foot b{ color:#16a34a; }

/* ---------- Footer ---------- */
.footer{ background:var(--paper); border-top:1px solid var(--line); padding:2.6rem 0; }
.footer .wrap{ display:flex; align-items:center; justify-content:space-between; gap:1.5rem; flex-wrap:wrap; }
.footer img{ height:26px; }
.footer .fl{ display:flex; gap:1.8rem; flex-wrap:wrap; }
.footer .fl a{ font-size:.88rem; color:var(--ink-2); text-decoration:none; transition:var(--t); }
.footer .fl a:hover{ color:var(--blue-d); }
.footer .cr{ font-family:var(--m); font-size:.74rem; color:var(--ink-3); }

/* ---------- divider + reveal ---------- */
.rule{ border-top:1px solid var(--line); }
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in{ opacity:1; transform:none; }

::-webkit-scrollbar{ width:10px; } ::-webkit-scrollbar-track{ background:var(--paper-2); }
::-webkit-scrollbar-thumb{ background:#cdddf3; border-radius:6px; } ::-webkit-scrollbar-thumb:hover{ background:var(--blue); }

/* ---------- responsive ---------- */
@media (max-width:980px){
  .hero-grid,.about .wrap,.contact-grid{ grid-template-columns:1fr; gap:2.6rem; }
  .about-photo img{ max-width:260px; }
  .svc-grid,.steps,.posts{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:680px){
  .nav-links{ position:fixed; inset:0 0 0 auto; width:80%; max-width:330px; height:100vh; height:100dvh; background:var(--paper); border-left:1px solid var(--line); flex-direction:column; justify-content:center; align-items:flex-start; gap:2rem; transform:translateX(100%); transition:transform var(--t); padding:2.4rem; z-index:999; box-shadow:var(--sh-lg); }
  .nav-links.open{ transform:none; }
  .nav-links a{ font-size:1.05rem; }
  .burger{ display:flex; z-index:1001; }
  .burger.x span:nth-child(1){ transform:rotate(45deg) translate(5px,5px); }
  .burger.x span:nth-child(2){ opacity:0; }
  .burger.x span:nth-child(3){ transform:rotate(-45deg) translate(5px,-5px); }
  .block,.contact .wrap{ padding:4.5rem 0; }
  .contact .wrap{ padding:4.5rem 1.6rem; }
  .svc-grid,.steps,.posts{ grid-template-columns:1fr; }
  .head{ margin-bottom:2.2rem; }
}