/* ddos-attack.net — crimson/charcoal dark theme */

:root {
  --bg:   oklch(0.07 0.010 240);
  --bg2:  oklch(0.11 0.010 240);
  --bg3:  oklch(0.16 0.010 240);

  --border:  oklch(0.24 0.008 240);
  --border2: oklch(0.32 0.008 240);

  --accent:  oklch(0.56 0.23 22);
  --accent2: oklch(0.70 0.19 22);
  --amber:   oklch(0.77 0.17 55);
  --amber2:  oklch(0.86 0.13 55);
  --teal:    oklch(0.70 0.14 185);
  --teal2:   oklch(0.80 0.10 185);

  --text:  oklch(0.92 0.005 240);
  --text2: oklch(0.62 0.008 240);
  --text3: oklch(0.42 0.008 240);

  --link:       oklch(0.68 0.16 240);
  --link-hover: oklch(0.78 0.12 240);

  --green: oklch(0.70 0.17 145);

  --r:  40px;
  --r2: 12px;
  --r3: 8px;

  --accent-grad: linear-gradient(135deg, var(--accent) 0%, var(--amber) 100%);
  --card-bg: linear-gradient(145deg, oklch(0.13 0.010 240 / .92) 0%, oklch(0.09 0.008 240 / .96) 100%);

  --font: 'Inter', system-ui, -apple-system, 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: var(--font);
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

@media (prefers-reduced-motion: no-preference) {
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  body { animation: fadeUp .45s ease-out both; }
}

a, button, .card, details summary {
  transition: transform .15s ease, opacity .15s ease, border-color .18s, background .18s;
}
a:active, .card:active { transform: scale(.975); opacity: .78; }

/* ── Layout ── */
.wrap    { max-width: 1080px; margin: 0 auto; padding: 0 1.25rem; }
.wrap-sm { max-width: 780px;  margin: 0 auto; padding: 0 1.25rem; }

/* ── Header ── */
header {
  background: oklch(0.09 0.010 240 / .88);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  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: 1.35rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--text);
  letter-spacing: -.3px;
}
.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: .28rem .6rem;
  border-radius: var(--r);
  transition: color .15s, background .15s;
}
nav a:hover, nav a.active { color: var(--text); background: var(--bg3); }

/* ── Hero ── */
.hero {
  position: relative;
  overflow: hidden;
  padding: 5.5rem 0 5rem;
  text-align: center;
}
.hero::before {
  content: '';
  position: absolute;
  inset: -30% -20% -20%;
  background:
    radial-gradient(ellipse 55% 40% at 50% 15%, oklch(0.56 0.23 22 / .15) 0%, transparent 60%),
    radial-gradient(ellipse 38% 30% at 75% 65%, oklch(0.77 0.17 55 / .08) 0%, transparent 55%);
  pointer-events: none;
}
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: oklch(0.56 0.23 22 / .12);
  border: 1px solid oklch(0.56 0.23 22 / .35);
  border-radius: var(--r);
  padding: .22rem .75rem;
  font-size: .75rem;
  color: var(--accent2);
  letter-spacing: .04em;
  margin-bottom: 1.4rem;
}
.hero-label::before {
  content: '⚡';
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.5px;
  margin-bottom: .9rem;
  background: linear-gradient(160deg, var(--text) 20%, var(--text2) 120%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-wrap: balance;
}
.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: 1.06rem;
  color: var(--text2);
  max-width: 620px;
  margin: 0 auto 2.2rem;
}
.badge-row { display: flex; justify-content: center; gap: .5rem; flex-wrap: wrap; margin-bottom: 2.2rem; }
.badge {
  background: oklch(0.16 0.010 240 / .8);
  border: 1px solid var(--border);
  border-radius: var(--r);
  font-size: .73rem;
  padding: .22rem .78rem;
  color: var(--text2);
  backdrop-filter: blur(6px);
  letter-spacing: .02em;
}
.badge.red    { border-color: var(--accent);  color: var(--accent2); }
.badge.amber  { border-color: var(--amber);   color: var(--amber2); }
.badge.teal   { border-color: var(--teal);    color: var(--teal2); }
.badge.green  { border-color: var(--green);   color: var(--green); }

/* ── Metric bar (hero) ── */
.metric-row {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin: 0 auto;
  max-width: 700px;
}
.metric {
  text-align: center;
}
.metric-val {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.1;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.metric-label { font-size: .72rem; color: var(--text3); text-transform: uppercase; letter-spacing: .06em; margin-top: .2rem; }

/* ── 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(10px);
}
.toc h2 { font-size: .7rem; text-transform: uppercase; letter-spacing: .12em; color: var(--text3); margin-bottom: .75rem; }
.toc ol  { padding-left: 1.25rem; }
.toc li  { margin: .28rem 0; }
.toc a   { color: var(--link); text-decoration: none; font-size: .9rem; }
.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; }

h1, h2, h3, h4 { font-family: var(--font); }

h2.section-title {
  font-size: 1.65rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: .55rem;
}
h2.section-title::before {
  content: '';
  flex-shrink: 0;
  width: 3px;
  height: 1.1em;
  background: var(--accent-grad);
  border-radius: 2px;
}
h3 { font-size: 1.1rem; font-weight: 600; margin: 1.6rem 0 .5rem; color: var(--text); }
p  { margin: .7rem 0; color: var(--text2); }
p strong { color: var(--text); }
ul, ol { padding-left: 1.4rem; color: var(--text2); }
li { margin: .3rem 0; }

/* ── Cards ── */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: .85rem;
  margin: 1.5rem 0;
}
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 1.25rem;
  backdrop-filter: blur(12px);
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card h3 { font-size: .95rem; margin: 0 0 .4rem; }
.card p  { font-size: .86rem; margin: 0; }
.card-icon {
  font-size: 1.5rem;
  margin-bottom: .65rem;
  line-height: 1;
}
.card.amber-hover:hover { border-color: var(--amber); }
.card.teal-hover:hover  { border-color: var(--teal); }

/* ── Stat tiles ── */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(175px, 1fr));
  gap: .75rem;
  margin: 1.5rem 0;
}
.stat {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 1.15rem 1.3rem;
  text-align: center;
}
.stat.red    { border-color: oklch(0.56 0.23 22 / .4); background: linear-gradient(145deg, oklch(0.13 0.020 22 / .8), oklch(0.09 0.012 22 / .9)); }
.stat.amber  { border-color: oklch(0.77 0.17 55 / .4);  background: linear-gradient(145deg, oklch(0.13 0.018 55 / .8), oklch(0.09 0.010 55 / .9)); }
.stat.teal   { border-color: oklch(0.70 0.14 185 / .4); background: linear-gradient(145deg, oklch(0.12 0.016 185 / .8), oklch(0.09 0.010 185 / .9)); }
.stat-val { font-size: 1.65rem; font-weight: 800; color: var(--text); line-height: 1.1; }
.stat-val span { background: var(--accent-grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-val.amber-grad span { background: linear-gradient(135deg, var(--amber), var(--teal)); -webkit-background-clip: text; background-clip: text; }
.stat-label { font-size: .74rem; color: var(--text3); margin-top: .2rem; text-transform: uppercase; letter-spacing: .06em; }

/* ── Callout ── */
.callout {
  border-left: 3px solid var(--accent);
  background: oklch(0.56 0.23 22 / .07);
  border-radius: 0 var(--r3) var(--r3) 0;
  padding: 1rem 1.25rem;
  margin: 1.4rem 0;
}
.callout.amber { border-color: var(--amber); background: oklch(0.77 0.17 55 / .07); }
.callout.teal  { border-color: var(--teal);  background: oklch(0.70 0.14 185 / .07); }
.callout.green { border-color: var(--green); background: oklch(0.70 0.17 145 / .07); }
.callout p { color: var(--text); margin: 0; font-size: .93rem; }

/* ── Table ── */
.table-wrap { overflow-x: auto; margin: 1.4rem 0; border-radius: var(--r2); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; font-size: .87rem; }
thead tr { background: var(--bg3); }
th { text-align: left; padding: .65rem 1rem; color: var(--text2); font-size: .73rem; text-transform: uppercase; letter-spacing: .07em; }
td { padding: .65rem 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(0.16 0.010 240 / .5); }

/* ── Formula box ── */
.formula {
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--r2);
  padding: 1.1rem 1.4rem;
  margin: 1.4rem 0;
  font-family: var(--font-mono);
  font-size: .88rem;
  color: var(--amber2);
  overflow-x: auto;
}
.formula .comment { color: var(--text3); font-family: var(--font); font-style: italic; font-size: .82rem; }

/* ── FAQ ── */
.faq-list { margin: 1.4rem 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(0.50 0.18 22); }
summary {
  padding: .95rem 1.25rem;
  cursor: pointer;
  font-weight: 600;
  font-size: .93rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
}
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; color: var(--text3); font-size: 1.2rem; line-height: 1; }
details[open] summary::after { content: '−'; color: var(--accent2); }
details p { padding: 0 1.25rem .95rem; margin: 0; font-size: .9rem; color: var(--text2); }

/* ── Gradient divider ── */
.grad-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent) 40%, var(--amber) 60%, transparent);
  opacity: .25;
  margin: 1.5rem 0;
}

/* ── Code ── */
code {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: .83em;
  padding: .1em .38em;
  color: var(--amber2);
}

/* ── Links ── */
a { color: var(--link); }
a:hover { color: var(--link-hover); }

/* ── Two-col ── */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin: 1.5rem 0; }

/* ── Footer ── */
footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-radius: 40px 40px 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: .72rem; text-transform: uppercase; letter-spacing: .12em; color: var(--text3); margin-bottom: .75rem; }
.footer-col a { display: block; color: var(--text2); text-decoration: none; font-size: .85rem; margin-bottom: .3rem; }
.footer-col a:hover { color: var(--link); }
.footer-bottom { margin-top: 2rem; padding-top: 1.25rem; border-top: 1px solid var(--border); text-align: center; color: var(--text3); font-size: .78rem; }

/* ── Responsive ── */
@media (max-width: 720px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .two-col { grid-template-columns: 1fr; }
  nav { display: none; }
  .hero h1 { font-size: 1.9rem; }
  h2.section-title { font-size: 1.35rem; }
  footer { border-radius: 24px 24px 0 0; }
  .metric-row { gap: 1rem; }
  .metric-val { font-size: 1.6rem; }
}
@media (max-width: 450px) {
  .footer-inner { grid-template-columns: 1fr; }
}

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