/* A GitHub-dark terminal palette: the near-black the tool prints on, the
   green it reports a found password in, and an amber used sparingly. Every
   colour on the page is one of these, so the light set below is the whole of
   light mode. */
:root {
  color-scheme: dark light;
  --bg: #0d1117;
  --bg-lift: #161b22;
  --bg-deep: #010409;
  --text: #e6edf3;
  --text-soft: #8b949e;
  --accent: #3fb950;
  --accent-dark: #2ea043;
  --amber: #d29922;
  --link: #58a6ff;
  --line: rgba(255, 255, 255, 0.1);
  --dots: rgba(255, 255, 255, 0.05);
  /* Raised surfaces: pills, cards. */
  --card: rgba(255, 255, 255, 0.04);
  --card-hover: rgba(255, 255, 255, 0.08);
  /* The terminal window and install lines stay dark in both themes, matching
     the capture, whose own background is this same colour. */
  --term: #0d1117;
  --term-bar: #161b22;
  --term-ink: #e6edf3;
  --shadow: rgba(1, 4, 9, 0.6);
  --wrap: 1000px;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --bg-lift: #f6f8fa;
    --bg-deep: #f6f8fa;
    --text: #1f2328;
    --text-soft: #59636e;
    --accent: #1a7f37;
    --accent-dark: #116329;
    --amber: #9a6700;
    --link: #0969da;
    --line: rgba(0, 0, 0, 0.11);
    --dots: rgba(0, 0, 0, 0.05);
    --card: rgba(0, 0, 0, 0.03);
    --card-hover: rgba(0, 0, 0, 0.06);
    --shadow: rgba(31, 35, 40, 0.15);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

h1, h2 { line-height: 1.15; letter-spacing: -0.02em; }

a { color: var(--link); text-underline-offset: 2px; transition: color 0.15s ease; }
a:hover { color: var(--accent); }

img { display: block; width: 100%; height: auto; }

/* A single visible keyboard-focus ring in the accent colour, on anything
   interactive. */
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Honour a request for less motion: keep the colour changes, drop the moves. */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
  .pill:hover, .beats > div:hover { transform: none; }
}

/* ---- hero ---- */

.hero {
  position: relative;
  padding: 56px 24px 0;
  text-align: center;
  /* A soft green halo at the top — the colour a found password prints in —
     over the surface gradient, so the headline sits in a pool of brand light. */
  background:
    radial-gradient(1100px 420px at 50% -8%, rgba(63, 185, 80, 0.13), transparent 60%),
    linear-gradient(180deg, var(--bg-lift) 0%, var(--bg) 62%);
  overflow: hidden;
}

/* A faint field of dots behind the headline, the same light-shade texture the
   progress bar draws its unfilled cells with. Decoration only, so it sits
   under everything and takes no clicks. */
.hero::before {
  content: "";
  position: absolute;
  top: 54px;
  left: 0;
  right: 0;
  height: 150px;
  pointer-events: none;
  background-image: radial-gradient(var(--dots) 1.4px, transparent 1.6px);
  background-size: 14px 14px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 22%, #000 78%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 22%, #000 78%, transparent);
}

.hero-inner { position: relative; max-width: var(--wrap); margin: 0 auto; }

/* The mark: an open padlock, green shackle lifted clear of the body — the
   state the tool leaves an archive in. Drawn once here and, bolder, as the
   favicon. A soft green halo lifts it off the hero. */
.logo { display: flex; justify-content: center; margin: 0 0 14px; }
.logo svg { filter: drop-shadow(0 4px 14px rgba(63, 185, 80, 0.35)); }
.logo .lk-body { fill: var(--bg-lift); stroke: var(--text); stroke-width: 2.4; }
.logo .lk-shackle { stroke: var(--accent); }
.logo .lk-hole { fill: var(--accent); }

/* The links pinned to the corner: sponsoring, and the repository with its
   star count. */
.top {
  position: absolute;
  z-index: 1;
  top: 16px;
  right: 16px;
  display: flex;
  gap: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.pill:hover { background: var(--card-hover); border-color: var(--text-soft); transform: translateY(-1px); }
.sponsor .heart { color: #db61a2; }
.gh .stars { padding-left: 8px; border-left: 1px solid var(--line); color: var(--text-soft); }
.gh .stars[hidden] { display: none; }

/* The name and what it is are the headline: a reader who takes in one line of
   this page should come away knowing both. */
.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(2.2rem, 6vw, 3.8rem);
  font-weight: 800;
}

.hero h1 code {
  font-family: var(--mono);
  font-size: 0.92em;
  letter-spacing: -0.03em;
  background: none;
  padding: 0;
}

.hero h1 .genre {
  display: block;
  margin-top: 12px;
  font-size: clamp(1.1rem, 3vw, 1.6rem);
  font-weight: 700;
  letter-spacing: 0;
  color: var(--text);
}

.hero h1::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  margin: 20px auto 0;
  border-radius: 2px;
  background: var(--accent);
}

.lede {
  margin: 0 auto 18px;
  max-width: 58ch;
  font-size: 1rem;
  color: var(--text-soft);
}

/* What it cracks, as badges. */
.formats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 0 0 30px;
  padding: 0;
  list-style: none;
}

.formats li {
  padding: 2px 10px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--card);
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-soft);
}

/* ---- terminal window around the capture ---- */

.term {
  max-width: 1000px;
  margin: 8px auto 0;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--term);
  /* A deep drop shadow plus a faint green aura, tying the capture to the
     accent without a hard outline. */
  box-shadow: 0 24px 60px -12px var(--shadow),
              0 0 70px -30px rgba(63, 185, 80, 0.5);
  overflow: hidden;
  text-align: left;
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  background: var(--term-bar);
  border-bottom: 1px solid var(--line);
}

.term-bar .dot { width: 12px; height: 12px; border-radius: 50%; flex: none; }
.term-bar .r { background: #ff5f56; }
.term-bar .y { background: #ffbd2e; }
.term-bar .g { background: #27c93f; }

.term-bar .title {
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-soft);
}

.term img { display: block; width: 100%; height: auto; }

/* ---- install, in the hero ---- */

.install {
  max-width: 760px;
  margin: 0 auto 18px;
  text-align: left;
}

.install-tabs { display: flex; justify-content: center; gap: 6px; margin-bottom: 10px; }
.install-tabs[hidden] { display: none; }

.install-tabs button {
  font: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  padding: 6px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.install-tabs button:hover:not([aria-selected="true"]) { color: var(--text); border-color: var(--text-soft); }

.install-tabs button[aria-selected="true"] {
  color: #fff;
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.install-cmd + .install-cmd { margin-top: 22px; }
.install-cmd[hidden] { display: none; }
.install.tabbed .install-cmd + .install-cmd { margin-top: 0; }
.install.tabbed .install-label { display: none; }

.install-label { margin: 0 0 6px; font-weight: 700; font-size: 0.95rem; }

/* A terminal line: dark, one row, scrolling sideways on a narrow screen
   rather than wrapping a command someone is about to paste. */
.install-line {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 10px 10px 18px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--term);
}

.install-line code {
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  white-space: nowrap;
  padding: 4px 0;
  background: none;
  color: var(--term-ink);
  font-size: 0.9rem;
}

.install-line .copy {
  flex: none;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 14px;
  border: 0;
  border-radius: 999px;
  background: var(--accent-dark);
  color: #fff;
  cursor: pointer;
}

.install-line .copy { transition: background 0.15s ease; }
.install-line .copy:hover { background: var(--accent); }
.install-line .copy[hidden] { display: none; }

.install-note {
  margin: 8px 0 0;
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-soft);
}

.install-note code { font-size: 0.85em; }

.alt {
  margin: 0 0 34px;
  font-size: 0.92rem;
  color: var(--text-soft);
}

.alt code { font-size: 0.85em; white-space: nowrap; }

/* ---- sections ---- */

main > section {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 80px 24px 0;
}

main > section:last-child { padding-bottom: 80px; }

main h2 {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  margin: 0 0 12px;
}

/* A short green tick above the plain section titles, the same accent the
   feature cards and the headline carry. */
.attacks > h2::before,
.perf > h2::before,
.faq > h2::before {
  content: "";
  display: block;
  width: 32px;
  height: 3px;
  margin-bottom: 14px;
  border-radius: 2px;
  background: var(--accent);
}

.section-lede { margin: 0; max-width: 60ch; color: var(--text-soft); font-size: 0.97rem; }

/* ---- numbers ---- */

main > section.stats {
  max-width: none;
  margin-top: 80px;
  padding: 36px 24px 40px;
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stats > p {
  margin: 0 0 24px;
  text-align: center;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-soft);
}

.stats ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 24px;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0;
  list-style: none;
  text-align: center;
}

.stats li { font-size: 0.92rem; color: var(--text-soft); }

.stats b {
  display: block;
  font-size: clamp(1.7rem, 4vw, 2.3rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--accent);
}

/* ---- feature cards ---- */

.beats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.beats > div {
  padding: 24px 26px;
  border-radius: 12px;
  background: var(--card);
  border: 1px solid var(--line);
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.beats > div:hover {
  transform: translateY(-3px);
  background: var(--card-hover);
  border-color: rgba(63, 185, 80, 0.45);
}

.beats h2 { font-size: 1.2rem; margin-bottom: 8px; }

.beats h2::before {
  content: "";
  display: block;
  width: 28px;
  height: 3px;
  margin-bottom: 14px;
  border-radius: 2px;
  background: var(--accent);
}
.beats p { margin: 0; font-size: 0.97rem; color: var(--text-soft); }
.beats code { font-size: 0.85em; padding: 2px 6px; }

/* ---- attack modes ---- */

.modes { display: grid; gap: 18px; margin-top: 26px; }

.mode {
  display: grid;
  grid-template-columns: 15em 1fr;
  gap: 24px;
  align-items: center;
  padding: 22px 26px;
  border-radius: 12px;
  background: var(--card);
  border: 1px solid var(--line);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.mode:hover { background: var(--card-hover); border-color: rgba(63, 185, 80, 0.45); }

.mode h3 { margin: 0 0 6px; font-size: 1.1rem; }
.mode p { margin: 0; font-size: 0.92rem; color: var(--text-soft); }

.mode pre {
  margin: 0;
  padding: 14px 16px;
  border-radius: 10px;
  background: var(--term);
  border: 1px solid var(--line);
  overflow-x: auto;
}

.mode pre code {
  background: none;
  padding: 0;
  color: var(--term-ink);
  font-size: 0.88rem;
  white-space: pre;
}

.mode pre .tok { color: var(--amber); }
.mode pre .prompt { color: var(--text-soft); }

@media (max-width: 680px) {
  .mode { grid-template-columns: 1fr; gap: 14px; }
}

/* ---- performance ---- */

/* A plain, honest note, not an alarm: the 7z caveat. */
.note {
  margin-top: 26px;
  padding: 20px 24px;
  border-radius: 12px;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
}

.note h3 { margin: 0 0 8px; font-size: 1.05rem; }
.note p { margin: 0; font-size: 0.95rem; color: var(--text-soft); }
.note code { font-size: 0.85em; }

/* ---- tips / faq ---- */

.faq-list { display: grid; gap: 12px; margin-top: 26px; }

.faq details {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.faq details[open] { background: var(--card-hover); border-color: rgba(63, 185, 80, 0.4); }

.faq summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 22px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
}

.faq summary::-webkit-details-marker { display: none; }

/* A plus that rotates into a close mark when the answer opens. */
.faq summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-size: 1.4rem;
  font-weight: 400;
  line-height: 1;
  color: var(--accent);
  transition: transform 0.2s ease;
}

.faq details[open] summary::after { transform: rotate(45deg); }

.faq details p {
  margin: 0;
  padding: 0 22px 18px;
  max-width: 68ch;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.faq details code { font-size: 0.85em; }

code {
  font-family: var(--mono);
  font-size: 0.9em;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--bg-lift);
  color: var(--text);
}

/* ---- footer ---- */

footer {
  padding: 34px 24px 52px;
  text-align: center;
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
}

footer p { margin: 0 auto 8px; max-width: 62ch; }

.fineprint { font-size: 0.85rem; color: var(--text-soft); }

@media (max-width: 720px) {
  /* Room above the title for the corner links, which would sit on it. */
  .hero { padding-top: 76px; }
  .top { top: 14px; right: 14px; }
  .hero::before { top: 90px; height: 120px; }
  main > section { padding: 56px 20px 0; }
  main > section:last-child { padding-bottom: 56px; }
}