/* ═══════════════════════════════════════════════════════════
   RootCause Blockchain Security — Landing Page
   Mismo sistema de diseño que las demás ediciones RootCause,
   con la paleta propia del panel (violeta + teal sobre azul
   profundo). Dark theme. Monospace accents. Cero dependencias.
   ═══════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #080c18;
  --bg-alt:    #0b1020;
  --bg-card:   #10172a;
  --bg-card-2: #151e34;
  --border:    rgba(153, 171, 214, .14);
  --border-s:  rgba(153, 171, 214, .27);
  --accent:    #7c5cff;
  --accent-h:  #9a83ff;
  --teal:      #2bd8c5;
  --green:     #41d696;
  --yellow:    #f1cd63;
  --orange:    #ff9c5a;
  --red:       #ff5d7a;
  --txt:       #f4f6ff;
  --txt-sec:   #95a1bd;
  --txt-mut:   #6e7994;
  --mono:      'Cascadia Code', 'Fira Code', 'Consolas', ui-monospace, monospace;
  --sans:      -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --radius:    10px;
  --shadow:    0 18px 50px rgba(0, 0, 0, .5);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--txt);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-h); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  font-family: var(--mono);
  font-size: .85em;
  background: rgba(124, 92, 255, .12);
  color: #c3b4ff;
  padding: .1em .38em;
  border-radius: 4px;
}

pre { font-family: var(--mono); font-size: .82em; line-height: 1.55; overflow-x: auto; }
pre code { background: none; color: inherit; padding: 0; font-size: inherit; }

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

.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }

/* ── nav ──────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(8, 12, 24, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px; margin: 0 auto; padding: .75rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}

.nav-logo {
  display: inline-flex; align-items: center; gap: .5rem;
  font-weight: 700; font-size: .95rem; letter-spacing: -.01em;
}

.nav-links { display: flex; align-items: center; gap: 1.15rem; flex-wrap: wrap; }
.nav-links a { color: var(--txt-sec); font-size: .85rem; }
.nav-links a:hover { color: var(--txt); text-decoration: none; }

.btn-nav {
  padding: .38rem .8rem; border: 1px solid var(--border-s); border-radius: 7px;
  color: var(--txt) !important; font-weight: 600;
}
.btn-nav:hover { border-color: var(--accent); background: rgba(124, 92, 255, .12); }

/* ── hero ─────────────────────────────────────────────── */
.hero {
  padding: 4rem 1.5rem 3rem;
  text-align: center;
  background:
    radial-gradient(900px 420px at 50% -10%, rgba(124, 92, 255, .18), transparent 70%),
    radial-gradient(700px 380px at 85% 10%, rgba(43, 216, 197, .10), transparent 70%),
    var(--bg);
  border-bottom: 1px solid var(--border);
}

.hero-inner { max-width: 940px; margin: 0 auto; }

.ascii-block { overflow-x: auto; margin-bottom: 1.6rem; }
.ascii-block pre {
  display: inline-block; text-align: left;
  color: var(--accent); font-size: clamp(5px, 1.15vw, 11px); line-height: 1.05;
}

.hero-sub { color: var(--txt-sec); font-size: 1.02rem; line-height: 1.8; margin-bottom: 1.6rem; }
.hero-sub strong { color: var(--txt); }

.badges { display: flex; flex-wrap: wrap; justify-content: center; gap: .45rem; margin-bottom: 1.8rem; }
.badges img { height: 20px; }

.hero-cta { display: flex; flex-wrap: wrap; justify-content: center; gap: .75rem; margin-bottom: 1.4rem; }

.btn-primary, .btn-ghost {
  display: inline-block; padding: .68rem 1.35rem; border-radius: 8px;
  font-weight: 600; font-size: .92rem;
}
.btn-primary { background: var(--accent); color: #fff !important; border: 1px solid var(--accent); }
.btn-primary:hover { background: var(--accent-h); text-decoration: none; }
.btn-ghost { border: 1px solid var(--border-s); color: var(--txt) !important; }
.btn-ghost:hover { border-color: var(--accent); background: rgba(124, 92, 255, .1); text-decoration: none; }

.hero-tagline { color: var(--txt-mut); font-size: .9rem; }

/* ── sections ─────────────────────────────────────────── */
.section { padding: 3.5rem 0; border-bottom: 1px solid var(--border); }
.section.alt { background: var(--bg-alt); }

.section-title { font-size: 1.6rem; letter-spacing: -.02em; margin-bottom: .5rem; }
.section-sub { color: var(--txt-sec); font-size: .95rem; margin-bottom: 2rem; max-width: 760px; }

/* ── shots ────────────────────────────────────────────── */
.shot {
  margin: 1.5rem 0 .6rem;
  border: 1px solid var(--border-s); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
  background: var(--bg-card);
}
.shot img { display: block; width: 100%; }
.shot-caption { color: var(--txt-mut); font-size: .82rem; margin-bottom: 2rem; }

.shot-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 1.5rem; }
.shot-grid .shot { margin: 0 0 .5rem; }

/* ── cards ────────────────────────────────────────────── */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 1.1rem; }

.feature-card {
  padding: 1.35rem; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg-card);
}
.feature-card h3 { font-size: 1.02rem; margin-bottom: .5rem; }
.feature-card p { color: var(--txt-sec); font-size: .89rem; }
.feature-icon { font-size: 1.5rem; margin-bottom: .55rem; }

/* ── tables ───────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: .87rem; }
th, td { padding: .7rem .9rem; text-align: left; border-bottom: 1px solid var(--border); }
th { background: var(--bg-card-2); color: var(--txt-sec); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; }
tr:last-child td { border-bottom: none; }
td code { white-space: nowrap; }

/* ── proof list ───────────────────────────────────────── */
.proof-list { display: grid; gap: .7rem; }
.proof-item {
  display: flex; gap: .85rem; align-items: flex-start;
  padding: .9rem 1.1rem; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg-card);
}
.proof-check { color: var(--green); font-weight: 700; flex-shrink: 0; }
.proof-item p { font-size: .89rem; color: var(--txt-sec); }
.proof-item strong { color: var(--txt); }

/* ── honesty ──────────────────────────────────────────── */
.honesty {
  padding: 1.4rem 1.6rem; border: 1px solid rgba(255, 156, 90, .28); border-radius: var(--radius);
  background: rgba(255, 156, 90, .06);
}
.honesty ul { margin: .7rem 0 0 1.1rem; }
.honesty li { color: var(--txt-sec); font-size: .89rem; margin-bottom: .45rem; }

/* ── install ──────────────────────────────────────────── */
.install-block {
  padding: 1.2rem 1.4rem; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg-card); margin-bottom: 1rem;
}
.install-block h3 { font-size: 1rem; margin-bottom: .55rem; }
.install-block pre {
  padding: .8rem 1rem; border-radius: 7px; background: #05070f;
  border: 1px solid var(--border); color: var(--teal); margin-top: .6rem;
}

/* ── family ───────────────────────────────────────────── */
.family-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1rem; }
.family-card {
  padding: 1.1rem; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg-card);
}
.family-card.current { border-color: var(--accent); background: rgba(124, 92, 255, .09); }
.family-card h4 { font-size: .95rem; margin-bottom: .3rem; }
.family-card p { color: var(--txt-sec); font-size: .83rem; }
.family-line {
  margin: 1.8rem 0 .9rem; color: var(--teal);
  font-size: .78rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
}

/* ── footer ───────────────────────────────────────────── */
.footer { padding: 2.5rem 0; color: var(--txt-mut); font-size: .85rem; text-align: center; }
.footer a { color: var(--txt-sec); }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; margin-bottom: 1rem; }

/* ── responsive ───────────────────────────────────────── */
@media (max-width: 720px) {
  .nav-links a:not(.btn-nav) { display: none; }
  .hero { padding: 2.5rem 1rem 2rem; }
  .section { padding: 2.5rem 0; }
  .shot-grid { grid-template-columns: 1fr; }
}