/* =========================================================
   KULATKJ — assets/css/global.css
   Dipakai oleh SEMUA domain & subdomain.
   Ubah warna/font di sini akan otomatis berlaku di semua halaman.
   ========================================================= */

:root{
  /* --- Palet warna: terinspirasi terminal jaringan / port switch --- */
  --bg:            #0c1420;
  --bg-soft:       #101c2c;
  --panel:         #16223470;
  --panel-solid:   #16233a;
  --line:          #24354d;
  --text:          #e8eef5;
  --text-dim:      #93a4bb;
  --text-faint:    #5f7188;
  --accent:        #23e5c3;   /* teal "kabel LAN" */
  --accent-dim:    #12796a;
  --accent-2:      #ffb020;   /* amber "sinyal aktif" */
  --danger:        #ff5d6c;

  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body:    'Inter', 'Segoe UI', sans-serif;
  --font-mono:    'IBM Plex Mono', 'Courier New', monospace;

  --radius: 10px;
  --maxw: 1120px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
html, body{ max-width:100%; overflow-x:hidden; }
body{
  margin:0;
  background:
    radial-gradient(circle at 15% -10%, #123 0%, transparent 45%),
    var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

/* garis grid halus di background biar berasa "papan sirkuit" */
body::before{
  content:"";
  position:fixed; inset:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:56px 56px;
  opacity:.06;
  pointer-events:none;
  z-index:0;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{ font-family:var(--font-display); font-weight:600; letter-spacing:-0.01em; margin:0 0 .5em; }
p{ margin:0 0 1em; color:var(--text-dim); }
code, .mono{ font-family:var(--font-mono); }

.container{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}

.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--accent);
}
.eyebrow::before{
  content:"";
  width:7px; height:7px; border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 8px var(--accent);
}

/* ---------- Navbar (dipakai di semua halaman) ---------- */
.site-nav{
  position:sticky; top:0; z-index:50;
  background:rgba(12,20,32,.85);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-nav .wrap{
  max-width:var(--maxw); margin:0 auto; padding:14px 24px;
  display:flex; align-items:center; justify-content:space-between; gap:16px;
}
.brand{
  font-family:var(--font-mono); font-weight:600; font-size:1.05rem;
  display:flex; align-items:center; gap:10px; color:var(--text);
}
.brand .dot{ color:var(--accent); }
.nav-links{
  display:flex; gap:22px; flex-wrap:wrap; min-width:0;
  font-size:.9rem; color:var(--text-dim);
}
.nav-links a{
  position:relative; padding:4px 0 6px; transition:color .15s, border-color .15s;
  border-bottom:2px solid transparent;
}
.nav-links a:hover, .nav-links a.active{ color:var(--accent); }
.nav-links a.active{ border-bottom-color:var(--accent); }
.nav-toggle{ display:none; }

/* ---------- Tombol ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:11px 20px; border-radius:8px;
  font-family:var(--font-mono); font-size:.85rem; font-weight:600;
  border:1px solid var(--line); cursor:pointer;
  transition:transform .15s, border-color .15s, background .15s;
}
.btn:hover{ transform:translateY(-2px); }
.btn-primary{ background:var(--accent); color:#04211c; border-color:var(--accent); }
.btn-primary:hover{ box-shadow:0 0 22px -4px var(--accent); }
.btn-ghost{ background:transparent; color:var(--text); }
.btn-ghost:hover{ border-color:var(--accent); color:var(--accent); }

/* ---------- Kartu umum ---------- */
.card{
  background:var(--panel-solid);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
}

/* ---------- Section umum ---------- */
.section{ padding:72px 0; position:relative; z-index:1; }
.section-head{ max-width:640px; margin:0 0 40px; }
.section-head h2{ font-size:clamp(1.6rem,3vw,2.1rem); }

/* ---------- Footer (dipakai di semua halaman) ---------- */
.site-footer{
  border-top:1px solid var(--line);
  padding:36px 0;
  color:var(--text-faint);
  font-size:.85rem;
}
.site-footer .wrap{
  max-width:var(--maxw); margin:0 auto; padding:0 24px;
  display:flex; flex-wrap:wrap; gap:12px; justify-content:space-between; align-items:center;
}
.site-footer a:hover{ color:var(--accent); }

/* ---------- Breadcrumb subdomain ---------- */
.subdomain-tag{
  font-family:var(--font-mono); font-size:.75rem;
  color:var(--accent-2); border:1px solid var(--accent-2);
  padding:3px 9px; border-radius:999px; letter-spacing:.05em;
}

/* ---------- Accordion (dipakai di materi/mikrotik/debian/latihan) ---------- */
.accordion-item{
  border:1px solid var(--line); border-radius:var(--radius);
  margin-bottom:12px; overflow:hidden; background:var(--panel-solid);
}
.accordion-trigger{
  width:100%; text-align:left; background:none; border:none; color:var(--text);
  padding:18px 20px; font-family:var(--font-display); font-size:1rem; font-weight:600;
  display:flex; justify-content:space-between; align-items:center; gap:12px; cursor:pointer;
}
.accordion-trigger .idx{ color:var(--accent); font-family:var(--font-mono); font-weight:400; margin-right:10px; }
.accordion-trigger .chevron{ transition:transform .2s; color:var(--text-faint); flex-shrink:0; }
.accordion-item.open .chevron{ transform:rotate(45deg); color:var(--accent); }
.accordion-panel{
  max-height:0; overflow:hidden; transition:max-height .25s ease;
  padding:0 20px; color:var(--text-dim); font-size:.94rem;
}
.accordion-item.open .accordion-panel{ padding-bottom:20px; }

/* ---------- Tabs (dipakai di tutorial) ---------- */
.tabs{ display:flex; gap:8px; margin-bottom:24px; flex-wrap:wrap; }
.tab-btn{
  padding:10px 18px; border-radius:999px; border:1px solid var(--line);
  background:transparent; color:var(--text-dim); font-family:var(--font-mono);
  font-size:.82rem; cursor:pointer; transition:.15s;
}
.tab-btn.active{ background:var(--accent); color:#04211c; border-color:var(--accent); }
.tab-panel{ display:none; }
.tab-panel.active{ display:block; }

/* ---------- Grid util ---------- */
.grid{ display:grid; gap:20px; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }

@media (max-width:860px){
  .grid-4{ grid-template-columns:repeat(2,1fr); }
  .grid-3{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:640px){
  .grid-2,.grid-3,.grid-4{ grid-template-columns:1fr; }
}
/* Navbar jadi baris menu yang bisa digeser HANYA ke kiri-kanan
   (horizontal scroll) di lebar layar yang tidak cukup untuk
   menampung semua menu sekaligus — tidak ada lagi scroll atas-bawah. */
@media (max-width:1080px){
  .nav-links{
    flex-wrap:nowrap;
    overflow-x:auto;
    overflow-y:hidden;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:thin;
    padding-bottom:2px;
  }
  .nav-links a{ flex:0 0 auto; white-space:nowrap; }
  .nav-toggle{ display:none; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *{ transition:none !important; animation:none !important; }
}

/* ---------- Focus visibility (aksesibilitas) ---------- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:2px solid var(--accent); outline-offset:2px;
}