/* ==========================================================================
   COBRA OS — cobra-os.com
   Red-team cyberpunk, straight from shell/cobra-theme.sh:
     bg #050508 · fg #d6dbe2 · red #ff2a3c · green #3dff8f · amber #ffb84d
     blue #4d7cff · violet #c95cff · cyan #2ee6e6 · gunmetal #3a3f4a
   ========================================================================== */

:root {
  --bg:        #050508;
  --bg-alt:    #08080e;
  --panel:     #0a0a12;
  --panel-2:   #0d0d17;
  --fg:        #d6dbe2;
  --dim:       #8b93a3;
  --gunmetal:  #3a3f4a;
  --line:      #1c1f28;
  --red:       #ff2a3c;
  --red-hot:   #ff5566;
  --green:     #3dff8f;
  --amber:     #ffb84d;
  --blue:      #4d7cff;
  --violet:    #c95cff;
  --cyan:      #2ee6e6;
  --mono: ui-monospace, "Cascadia Code", "Cascadia Mono", "JetBrains Mono",
          "Source Code Pro", "Fira Code", Menlo, Consolas,
          "DejaVu Sans Mono", "Liberation Mono", monospace;
  --glow-red:  0 0 18px rgba(255, 42, 60, .35);
  --glow-cyan: 0 0 14px rgba(46, 230, 230, .25);
  --radius: 6px;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 76px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* subtle CRT scanlines over everything */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 2px,
    rgba(0, 0, 0, .14) 2px 4px
  );
  mix-blend-mode: multiply;
  opacity: .5;
}

::selection { background: var(--red); color: #050508; }

/* scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--gunmetal); border: 2px solid var(--bg); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--red); }

img { max-width: 100%; height: auto; }

a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--red-hot); }

code {
  font-family: var(--mono);
  color: var(--cyan);
  background: rgba(46, 230, 230, .07);
  padding: .1em .35em;
  border-radius: 3px;
  font-size: .92em;
}

.container { width: min(1180px, 92%); margin: 0 auto; }

.red  { color: var(--red); }
.cyan { color: var(--cyan); }
.dim  { color: var(--dim); }

/* terminal text colors (codeblocks + typed term) */
.t-fg    { color: var(--fg); }
.t-red   { color: var(--red); }
.t-green { color: var(--green); }
.t-amber { color: var(--amber); }
.t-blue  { color: var(--blue); }
.t-cyan  { color: var(--cyan); }
.t-violet{ color: var(--violet); }
.t-dim   { color: var(--dim); }

/* ---------- nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(5, 5, 8, .82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  width: min(1180px, 94%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.nav-brand { display: flex; align-items: center; gap: 10px; }
.nav-logo { width: 34px; height: 34px; object-fit: contain; filter: drop-shadow(0 0 6px rgba(255,42,60,.5)); }
.nav-title { font-weight: 700; letter-spacing: .12em; color: var(--fg); font-size: 17px; }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a {
  color: var(--dim);
  font-size: 13.5px;
  letter-spacing: .04em;
  transition: color .15s;
}
.nav-links a:hover { color: var(--red-hot); }
.nav-links a::before { content: "./"; color: var(--gunmetal); }
.nav-links a.nav-cta {
  color: var(--red);
  border: 1px solid var(--red);
  padding: 5px 14px;
  border-radius: var(--radius);
  transition: all .15s;
}
.nav-links a.nav-cta::before { content: ""; }
.nav-links a.nav-cta:hover { background: var(--red); color: #050508; box-shadow: var(--glow-red); }
.nav-burger {
  display: none;
  background: none; border: 0; cursor: pointer;
  flex-direction: column; gap: 5px; padding: 8px;
}
.nav-burger span { display: block; width: 22px; height: 2px; background: var(--red); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding: 150px 0 90px;
  background:
    radial-gradient(1000px 500px at 75% -10%, rgba(255, 42, 60, .10), transparent 60%),
    radial-gradient(800px 400px at 10% 110%, rgba(46, 230, 230, .05), transparent 60%),
    var(--bg);
  overflow: hidden;
}
/* faint terminal grid */
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(58, 63, 74, .14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(58, 63, 74, .14) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 30%, #000 30%, transparent 75%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero-kicker { color: var(--dim); font-size: 14px; margin: 0 0 10px; }
.prompt { color: var(--green); }
.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(44px, 6.5vw, 76px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--fg);
  text-shadow: 0 0 26px rgba(255, 42, 60, .25);
}
.hero h1 .red { text-shadow: 0 0 30px rgba(255, 42, 60, .65); }
.hero-tag { color: var(--dim); font-size: 16px; max-width: 54ch; margin: 0 0 28px; }
.hero-tag strong { color: var(--fg); }
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 38px; }

.btn {
  display: inline-block;
  font-family: var(--mono);
  font-size: 14.5px;
  padding: 12px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--gunmetal);
  color: var(--fg);
  background: var(--panel);
  transition: all .16s ease;
  cursor: pointer;
}
.btn-red {
  border-color: var(--red);
  color: var(--red-hot);
  background: rgba(255, 42, 60, .08);
}
.btn-red:hover {
  background: var(--red);
  color: #050508;
  box-shadow: var(--glow-red);
  transform: translateY(-1px);
}
.btn-ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: var(--glow-cyan);
  transform: translateY(-1px);
}

.hero-stats {
  list-style: none;
  display: flex;
  gap: 34px;
  flex-wrap: wrap;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line);
  padding-top: 22px;
}
.hero-stats li { display: flex; flex-direction: column; }
.stat-num { font-size: 24px; font-weight: 700; }
.stat-label { color: var(--dim); font-size: 12px; letter-spacing: .05em; }

/* terminal window */
.term {
  background: #07070c;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 0 0 1px rgba(255,42,60,.08), 0 24px 60px rgba(0,0,0,.6), var(--glow-red);
  overflow: hidden;
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--line);
  padding: 9px 12px;
}
.term-dot { width: 11px; height: 11px; border-radius: 50%; }
.d-red   { background: var(--red); }
.d-amber { background: var(--amber); }
.d-green { background: var(--green); }
.term-title { margin-left: 8px; color: var(--dim); font-size: 12px; letter-spacing: .05em; }
.term-body {
  margin: 0;
  padding: 18px 18px 22px;
  font-family: var(--mono);
  font-size: 12.8px;
  line-height: 1.5;
  min-height: 430px;
  white-space: pre;
  overflow-x: auto;
  color: var(--fg);
}
.term-cursor {
  display: inline-block;
  width: 8px; height: 15px;
  background: var(--red);
  vertical-align: -2px;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-fade {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 90px;
  background: linear-gradient(to bottom, transparent, var(--bg));
  pointer-events: none;
}

/* ---------- sections ---------- */
.section { padding: 92px 0; position: relative; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.sec-title {
  font-size: clamp(24px, 3.4vw, 34px);
  margin: 0 0 18px;
  letter-spacing: .02em;
  font-weight: 700;
}
.sec-num { color: var(--gunmetal); font-weight: 400; margin-right: 6px; }
.sec-lede { color: var(--dim); max-width: 78ch; margin: 0 0 34px; }

/* overview */
.overview-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 44px;
  align-items: start;
}
.overview-copy p { color: var(--dim); }
.overview-copy .lede { color: var(--fg); font-size: 16.5px; }
.overview-copy strong { color: var(--fg); }

.callout {
  border: 1px solid;
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-top: 22px;
  font-size: 14px;
}
.callout-amber { border-color: rgba(255,184,77,.5); background: rgba(255,184,77,.06); color: var(--amber); }
.callout-amber strong { color: var(--amber); }
.callout-red { border-color: rgba(255,42,60,.5); background: rgba(255,42,60,.06); color: var(--red-hot); }
.callout-red strong { color: var(--red-hot); }

.overview-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px 24px;
}
.card-title { margin: 0 0 14px; color: var(--red); font-size: 15px; letter-spacing: .06em; }
.layer-list { list-style: none; margin: 0; padding: 0; }
.layer-list li {
  display: flex;
  gap: 14px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 13.5px;
}
.layer-list li:last-child { border-bottom: 0; }
.layer-k { color: var(--violet); min-width: 74px; }
.layer-v { color: var(--dim); }

/* features */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.feature-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px 22px;
  transition: border-color .18s, box-shadow .18s, transform .18s;
}
.feature-card:hover {
  border-color: rgba(255, 42, 60, .55);
  box-shadow: 0 0 24px rgba(255, 42, 60, .12);
  transform: translateY(-3px);
}
.feature-icon {
  font-size: 20px;
  margin-bottom: 12px;
  text-shadow: 0 0 12px rgba(255, 42, 60, .8);
}
.feature-card h3 { margin: 0 0 10px; font-size: 16px; color: var(--fg); }
.feature-card p { margin: 0; color: var(--dim); font-size: 13.8px; }

/* ops table */
.ops-table-wrap {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow-x: auto;
  background: var(--panel);
}
.ops-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  min-width: 760px;
}
.ops-table th {
  text-align: left;
  color: var(--red);
  font-weight: 700;
  letter-spacing: .08em;
  font-size: 12px;
  text-transform: lowercase;
  padding: 13px 16px;
  border-bottom: 1px solid var(--gunmetal);
  background: var(--panel-2);
}
.ops-table td {
  padding: 9px 16px;
  border-bottom: 1px solid var(--line);
  color: var(--fg);
  vertical-align: top;
}
.ops-table tr:last-child td { border-bottom: 0; }
.ops-table tbody tr:hover td { background: rgba(255, 42, 60, .04); }
.ops-table td.dim { color: var(--dim); }
.ops-cat {
  color: var(--red);
  font-weight: 700;
  letter-spacing: .1em;
  border-right: 1px solid var(--line);
  background: rgba(255, 42, 60, .03);
  text-align: center;
  vertical-align: middle !important;
}

.cobrashell-strip {
  margin-top: 26px;
  border: 1px dashed var(--gunmetal);
  border-radius: 8px;
  padding: 20px 24px;
  background: rgba(201, 92, 255, .03);
}
.strip-title { margin: 0 0 10px; color: var(--violet); font-size: 15px; }
.cobrashell-strip p { margin: 0; color: var(--dim); font-size: 14px; }

/* profiles */
.profile-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.profile-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  border-radius: 8px;
  padding: 22px 24px;
  transition: box-shadow .18s, transform .18s;
}
.profile-card:hover { box-shadow: 0 0 24px rgba(255,42,60,.12); transform: translateY(-3px); }
.profile-card h3 { margin: 0 0 8px; font-size: 16.5px; letter-spacing: .04em; }
.profile-pkgs { color: var(--cyan); font-size: 13px; margin: 0 0 10px; }
.profile-card p:last-child { color: var(--dim); margin: 0; font-size: 14px; }

/* hardening */
.harden-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 44px;
}
.harden-list { list-style: none; margin: 0; padding: 0; }
.harden-list li {
  padding: 13px 0 13px 26px;
  border-bottom: 1px dashed var(--line);
  color: var(--dim);
  font-size: 14px;
  position: relative;
}
.harden-list li::before {
  content: "»";
  position: absolute;
  left: 0;
  color: var(--red);
}
.harden-list li:last-child { border-bottom: 0; }
.h-k { color: var(--red-hot); font-weight: 700; }

/* build */
.build-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}
.build-step h3 { font-size: 17px; margin: 0 0 14px; }
.step-num {
  display: inline-block;
  background: var(--red);
  color: #050508;
  font-weight: 700;
  width: 24px; height: 24px;
  line-height: 24px;
  text-align: center;
  border-radius: 4px;
  margin-right: 10px;
  font-size: 14px;
}
.build-step p { color: var(--dim); font-size: 14px; }

.codeblock {
  background: #060609;
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  border-radius: 6px;
  padding: 16px 18px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.6;
  margin: 0 0 16px;
  color: var(--fg);
}
.codeblock code { background: none; padding: 0; color: inherit; font-size: inherit; }

/* download */
.dl-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 26px;
  align-items: start;
}
.dl-card {
  background: var(--panel);
  border: 1px solid rgba(255, 42, 60, .4);
  border-radius: 8px;
  padding: 26px 26px 20px;
  box-shadow: 0 0 34px rgba(255, 42, 60, .10);
}
.dl-title { margin: 0 0 16px; color: var(--red-hot); font-size: 18px; word-break: break-all; }
.dl-meta { list-style: none; margin: 0 0 20px; padding: 0; }
.dl-meta li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 13.5px;
}
.dl-meta li:last-child { border-bottom: 0; }
.dl-meta span { color: var(--dim); }
.dl-meta strong { color: var(--fg); font-weight: 600; text-align: right; }
.dl-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.dl-note { color: var(--dim); font-size: 12.5px; margin: 16px 0 0; }
.dl-verify h3 { margin: 0 0 14px; font-size: 17px; }

/* palette */
.palette {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 10px;
  margin-bottom: 40px;
}
.swatch {
  background: var(--sw);
  border: 1px solid var(--line);
  border-radius: 6px;
  aspect-ratio: 1 / 1.1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 8px;
  transition: transform .15s, box-shadow .15s;
}
.swatch:hover { transform: translateY(-4px); box-shadow: 0 8px 22px rgba(0,0,0,.5); }
.sw-name { font-size: 11px; color: #050508; font-weight: 700; text-shadow: 0 0 6px rgba(255,255,255,.35); }
.sw-hex { font-size: 10.5px; color: rgba(5,5,8,.75); }
.swatch[style*="#050508"] .sw-name,
.swatch[style*="#3a3f4a"] .sw-name { color: var(--fg); text-shadow: none; }
.swatch[style*="#050508"] .sw-hex,
.swatch[style*="#3a3f4a"] .sw-hex { color: var(--dim); }

.splash-showcase { text-align: center; }
.splash-showcase img {
  border: 1px solid var(--gunmetal);
  border-radius: 8px;
  box-shadow: 0 0 40px rgba(255, 42, 60, .15);
  max-width: 640px;
  width: 100%;
  image-rendering: pixelated;
}
.splash-caption { color: var(--dim); font-size: 13px; margin-top: 14px; }

/* footer */
.footer {
  border-top: 1px solid var(--line);
  background: var(--bg-alt);
  padding: 56px 0 34px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line);
}
.footer-logo { width: 52px; filter: drop-shadow(0 0 8px rgba(255,42,60,.5)); margin-bottom: 12px; }
.footer-line { color: var(--fg); margin: 0 0 8px; font-size: 14.5px; }
.footer-dim { color: var(--dim); font-size: 12.5px; margin: 0; }
.footer-col h4 {
  color: var(--red);
  font-size: 13px;
  letter-spacing: .1em;
  margin: 0 0 14px;
}
.footer-col a, .footer-col span {
  display: block;
  color: var(--dim);
  font-size: 13.5px;
  padding: 4px 0;
}
.footer-col a:hover { color: var(--red-hot); }
.footer-legal { padding-top: 26px; }
.footer-legal p { color: var(--dim); font-size: 13px; margin: 0 0 8px; }
.footer-legal strong { color: var(--red-hot); }

/* ---------- responsive ---------- */
@media (max-width: 1020px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .palette { grid-template-columns: repeat(5, 1fr); }
  .overview-grid, .dl-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav-links {
    position: absolute;
    top: 60px; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: rgba(5,5,8,.97);
    border-bottom: 1px solid var(--line);
    padding: 10px 4%;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; width: 100%; border-bottom: 1px dashed var(--line); }
  .nav-links a.nav-cta { border: 1px solid var(--red); margin: 12px 0; padding: 8px 14px; width: auto; }
  .nav-burger { display: flex; }
  .feature-grid, .profile-grid, .build-grid, .harden-grid { grid-template-columns: 1fr; }
  .palette { grid-template-columns: repeat(3, 1fr); }
  .section { padding: 64px 0; }
  .hero { padding: 120px 0 70px; }
  .term-body { min-height: 380px; font-size: 11.5px; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  body::after { display: none; }
}