:root {
  --bg: #0a0c0e;
  --panel: #14171a;
  --panel-2: #1b1f23;
  --line: #2a2f34;
  --text: #e7e9e4;
  --text-dim: #9aa2a8;
  --signal: #49ffa0;
  --signal-dim: #2c9d69;
  --warn: #ffb545;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
  --sans: 'Inter', system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 920px; margin: 0 auto; padding: 0 24px; }

.scanlines {
  position: fixed; inset: 0; pointer-events: none; z-index: 1;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,0.012) 0px, rgba(255,255,255,0.012) 1px, transparent 1px, transparent 3px);
}

a { color: var(--signal); }

/* topbar */
.topbar { border-bottom: 1px solid var(--line); position: sticky; top: 0; background: rgba(10,12,14,0.9); backdrop-filter: blur(6px); z-index: 10; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 8px; font-family: var(--mono); font-weight: 600; letter-spacing: 0.08em; }
.brand-mark { color: var(--signal); }
.topnav { display: flex; gap: 24px; font-family: var(--mono); font-size: 13px; }
.topnav a { color: var(--text-dim); text-decoration: none; }
.topnav a:hover { color: var(--text); }
.support-link { color: var(--signal) !important; }

/* hero */
.hero { padding: 64px 24px 40px; text-align: left; }
.eyebrow {
  font-family: var(--mono); font-size: 12px; color: var(--warn);
  border: 1px solid rgba(255,181,69,0.3); background: rgba(255,181,69,0.06);
  display: inline-block; padding: 6px 12px; border-radius: 999px; margin-bottom: 24px;
}
h1 {
  font-family: var(--mono); font-weight: 600; font-size: clamp(28px, 4.2vw, 44px);
  line-height: 1.15; margin: 0 0 20px; letter-spacing: -0.01em;
}
.hero-sub { color: var(--text-dim); max-width: 640px; font-size: 16px; margin-bottom: 36px; }
.hero-sub strong { color: var(--text); }

/* dropzone */
.dropzone {
  border: 1.5px dashed var(--line); border-radius: 10px; background: var(--panel);
  padding: 48px 24px; text-align: center; cursor: pointer; transition: border-color .15s, background .15s;
}
.dropzone:hover, .dropzone.drag { border-color: var(--signal); background: #101a15; }
.dz-icon { font-size: 32px; color: var(--signal); margin-bottom: 12px; }
.dz-title { font-family: var(--mono); font-size: 15px; margin: 0 0 6px; }
.dz-sub { color: var(--text-dim); font-size: 13px; margin: 0; }

/* terminal */
.terminal { margin-top: 24px; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: #0d0f11; }
.terminal-head { display: flex; align-items: center; gap: 6px; padding: 10px 14px; background: var(--panel-2); border-bottom: 1px solid var(--line); }
.dot { width: 9px; height: 9px; border-radius: 50%; background: #3a3f45; }
.terminal-title { font-family: var(--mono); font-size: 12px; color: var(--text-dim); margin-left: 8px; }
.terminal-body { font-family: var(--mono); font-size: 13.5px; padding: 18px; min-height: 80px; white-space: pre-wrap; }
.tline { margin: 0 0 6px; opacity: 0; animation: fadeIn .25s forwards; }
@keyframes fadeIn { to { opacity: 1; } }
.tline.found { color: var(--warn); }
.tline.clean { color: var(--signal); }
.tline.meta { color: var(--text-dim); }
.terminal-actions { display: flex; gap: 12px; padding: 16px 18px; border-top: 1px solid var(--line); }

.btn {
  font-family: var(--mono); font-size: 13px; padding: 11px 20px; border-radius: 6px;
  border: 1px solid var(--line); cursor: pointer; text-decoration: none; display: inline-block;
}
.btn-primary { background: var(--signal); color: #06110b; border-color: var(--signal); font-weight: 600; }
.btn-primary:hover { background: #6dffb5; }
.btn-ghost { background: transparent; color: var(--text-dim); }
.btn-ghost:hover { color: var(--text); border-color: var(--text-dim); }

/* strip */
.strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); margin: 56px auto; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.strip-item { background: var(--panel); padding: 22px 18px; }
.strip-num { display: block; font-family: var(--mono); color: var(--signal); font-size: 13px; margin-bottom: 8px; }
.strip-label { font-size: 13px; color: var(--text-dim); }

/* how */
.how { padding: 40px 24px; }
.how h2, .faq h2, .support h2 { font-family: var(--mono); font-size: 22px; margin-bottom: 24px; }
.how-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.how-card { border: 1px solid var(--line); border-radius: 10px; padding: 20px; background: var(--panel); }
.how-card h3 { font-family: var(--mono); color: var(--signal); font-size: 14px; margin: 0 0 10px; }
.how-card p { color: var(--text-dim); font-size: 14px; margin: 0; }
.disclaimer { margin-top: 24px; font-size: 13px; color: var(--text-dim); border-left: 2px solid var(--warn); padding-left: 14px; }

/* faq */
.faq { padding: 20px 24px 40px; }
details { border-bottom: 1px solid var(--line); padding: 16px 0; }
summary { cursor: pointer; font-weight: 500; }
summary::marker { color: var(--signal); }
details p { color: var(--text-dim); margin: 12px 0 0; font-size: 14px; }

/* support */
.support { padding: 40px 24px 64px; text-align: center; border-top: 1px solid var(--line); }
.support p { color: var(--text-dim); max-width: 480px; margin: 0 auto 24px; }

footer { text-align: center; padding: 32px 24px; color: var(--text-dim); font-size: 12px; border-top: 1px solid var(--line); }

@media (max-width: 720px) {
  .how-grid { grid-template-columns: 1fr; }
  .strip { grid-template-columns: 1fr 1fr; }
}