/* ddos-attack.org — dark analytics / security research palette */

:root {
  --bg:   oklch(0.11 0.015 245);
  --bg2:  oklch(0.15 0.018 245);
  --bg3:  oklch(0.19 0.018 245);

  --border:  oklch(0.27 0.016 245);
  --border2: oklch(0.33 0.014 245);

  /* Electric blue primary */
  --accent:  oklch(0.62 0.24 250);
  --accent2: oklch(0.75 0.20 250);

  /* Amber warning */
  --amber:  oklch(0.78 0.16 75);
  --amber2: oklch(0.88 0.12 75);

  /* Red danger */
  --red:  oklch(0.58 0.22 25);
  --red2: oklch(0.70 0.18 25);

  --text:  oklch(0.92 0.008 245);
  --text2: oklch(0.64 0.010 245);
  --text3: oklch(0.47 0.010 245);

  --link:       oklch(0.70 0.21 250);
  --link-hover: oklch(0.82 0.17 250);

  --green:  oklch(0.72 0.17 145);
  --yellow: oklch(0.78 0.16 85);

  --r:  48px;
  --r2: 14px;
  --r3: 10px;

  --accent-grad: linear-gradient(135deg, var(--accent2) 0%, var(--accent) 100%);
  --hero-grad: linear-gradient(160deg,
    oklch(0.80 0.22 250) 0%,
    oklch(0.68 0.18 220) 50%,
    oklch(0.55 0.14 280) 100%);
  --card-bg: radial-gradient(
    70% 90% at 100% 100%,
    oklch(0.21 0.018 245 / .85) 0%,
    oklch(0.13 0.015 245 / .92) 100%);

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'Cascadia Code', 'Fira Code', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, 'Segoe UI Variable', 'Segoe UI', sans-serif;
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: no-preference) {
  @keyframes pageFade { from { opacity: 0; } to { opacity: 1; } }
  body { animation: pageFade .5s ease-out both; }
}

a, button, .card, details summary {
  transition: transform .15s ease-out, opacity .15s ease-out,
              border-color .18s, background .18s;
}
a:active, .card:active, details summary:active { transform: scale(.975); opacity: .75; }

.wrap    { max-width: 1100px; margin: 0 auto; padding: 0 1.25rem; }
.wrap-sm { max-width: 820px;  margin: 0 auto; padding: 0 1.25rem; }

/* Header */
header {
  background: oklch(0.13 0.018 245 / .92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: .85rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.logo {
  font-size: 1.4rem;
  font-weight: 800;
  text-decoration: none;
  color: var(--text);
  letter-spacing: -.5px;
  font-family: var(--font-display);
}
.logo span { background: var(--accent-grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
nav { display: flex; gap: .1rem; flex-wrap: wrap; }
nav a {
  color: var(--text2);
  text-decoration: none;
  font-size: .82rem;
  padding: .32rem .65rem;
  border-radius: var(--r);
  transition: color .15s, background .15s;
}
nav a:hover, nav a.active { color: var(--text); background: var(--bg3); }

/* Hero */
.hero {
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%,
      oklch(0.62 0.24 250 / .12) 0%, transparent 70%),
    var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 4rem 0 3.5rem;
  text-align: center;
}
.hero h1 {
  font-size: clamp(1.9rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: .75rem;
  background: var(--hero-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-wrap: balance;
  font-family: var(--font-display);
}
.hero h1 em {
  background: var(--accent-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-style: normal;
}
.hero p.lead {
  font-size: 1.08rem;
  color: var(--text2);
  max-width: 640px;
  margin: 0 auto 2rem;
  font-weight: 300;
}

/* Stat tiles */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: .75rem;
  margin: 2rem 0 0;
}
.stat-tile {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 1rem 1.25rem;
  text-align: center;
  backdrop-filter: blur(10px);
}
.stat-tile .val {
  font-size: 1.65rem;
  font-weight: 800;
  font-family: var(--font-display);
  background: var(--accent-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}
.stat-tile .val.amber { background: linear-gradient(135deg, var(--amber2), var(--amber)); -webkit-background-clip: text; background-clip: text; }
.stat-tile .val.red   { background: linear-gradient(135deg, var(--red2), var(--red));     -webkit-background-clip: text; background-clip: text; }
.stat-tile .lbl { font-size: .72rem; color: var(--text3); margin-top: .25rem; text-transform: uppercase; letter-spacing: .06em; }

/* Badges */
.badge-row { display: flex; justify-content: center; gap: .5rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.badge {
  background: oklch(0.20 0.018 245 / .8);
  border: 1px solid var(--border);
  border-radius: var(--r);
  font-size: .75rem;
  padding: .26rem .85rem;
  color: var(--text2);
}
.badge.green  { border-color: var(--green);  color: var(--green); }
.badge.blue   { border-color: var(--accent); color: var(--accent2); }
.badge.amber  { border-color: var(--amber);  color: var(--amber2); }

/* TOC */
.toc {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
  backdrop-filter: blur(12px);
}
.toc h2 {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text2);
  margin-bottom: .75rem;
  font-family: var(--font-display);
}
.toc ol  { padding-left: 1.25rem; }
.toc li  { margin: .3rem 0; }
.toc a   { color: var(--link); text-decoration: none; font-size: .92rem; }
.toc a:hover { color: var(--link-hover); text-decoration: underline; }

/* Sections */
.section { padding: 3.5rem 0; border-bottom: 1px solid var(--border); }
.section:last-child { border-bottom: none; }

h2.section-title {
  font-size: 1.65rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text);
  font-family: var(--font-display);
}
h2.section-title::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 1em;
  background: var(--accent-grad);
  border-radius: 2px;
  margin-right: .6rem;
  vertical-align: middle;
}

h1, h2, h3, h4 { font-family: var(--font-display); }
h3 { font-size: 1.12rem; font-weight: 600; margin: 1.75rem 0 .5rem; color: var(--text); }
p  { margin: .75rem 0; color: var(--text2); }
p strong { color: var(--text); }

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 1.25rem;
  backdrop-filter: blur(14px);
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card h3 { font-size: .97rem; margin: 0 0 .4rem; color: var(--text); }
.card p  { font-size: .86rem; margin: 0; }

/* Callout */
.callout {
  border-left: 3px solid var(--accent);
  background: oklch(0.62 0.24 250 / .07);
  border-radius: 0 var(--r3) var(--r3) 0;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}
.callout.amber { border-color: var(--amber); background: oklch(0.78 0.16 75 / .07); }
.callout.green { border-color: var(--green); background: oklch(0.72 0.17 145 / .07); }
.callout.red   { border-color: var(--red);   background: oklch(0.58 0.22 25 / .07); }
.callout p { color: var(--text); margin: 0; font-size: .94rem; }

/* Table */
.table-wrap { overflow-x: auto; margin: 1.5rem 0; border-radius: var(--r2); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; font-size: .88rem; }
thead tr { background: var(--bg3); }
th {
  text-align: left;
  padding: .7rem 1rem;
  color: var(--text2);
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .06em;
}
td { padding: .7rem 1rem; border-bottom: 1px solid var(--border); color: var(--text2); }
td strong { color: var(--text); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: oklch(0.19 0.018 245 / .5); }

/* Amp highlight */
.amp-high { color: var(--red2); font-weight: 700; }
.amp-mid  { color: var(--amber); font-weight: 600; }

/* FAQ */
.faq-list { margin: 1.5rem 0; }
details {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  margin-bottom: .5rem;
  backdrop-filter: blur(10px);
  overflow: hidden;
}
details[open] { border-color: oklch(0.45 0.18 250); }
summary {
  padding: 1rem 1.25rem;
  cursor: pointer;
  font-weight: 600;
  font-size: .95rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
  font-family: var(--font-display);
}
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; color: var(--text3); font-size: 1.2rem; }
details[open] summary::after { content: '-'; color: var(--accent2); }
details p { padding: 0 1.25rem 1rem; margin: 0; font-size: .92rem; color: var(--text2); }

/* Code */
code {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: .84em;
  padding: .1em .4em;
  color: var(--accent2);
}

a { color: var(--link); }
a:hover { color: var(--link-hover); }

/* Footer */
footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-radius: 48px 48px 0 0;
  padding: 2.5rem 0 2rem;
  margin-top: 2rem;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
}
.footer-col h3 {
  font-size: .76rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text2);
  margin-bottom: .75rem;
  font-family: var(--font-display);
}
.footer-col a { display: block; color: var(--text2); text-decoration: none; font-size: .85rem; margin-bottom: .35rem; }
.footer-col a:hover { color: var(--link); }
.footer-bottom {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text2);
  font-size: .8rem;
}

@media (max-width: 700px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  nav { display: none; }
  .hero h1 { font-size: 1.85rem; }
  h2.section-title { font-size: 1.4rem; }
  footer { border-radius: 28px 28px 0 0; }
}
@media (max-width: 450px) {
  .footer-inner { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: 1fr 1fr; }
}

::selection { background: var(--accent); color: var(--bg); }