/* STACCER — mirrors the DIALFARM brand system (ASSETS.md).
   One family (IBM Plex Mono, 400/500/700). Warm paper/ink, light by default.
   Single accent #F8FAC7 on ink/dark surfaces only. No pure #000/#FFF on web. */

/* Fonts — self-hosted, per brand kit §3 */
@font-face{font-family:'IBM Plex Mono';src:url('/fonts/IBMPlexMono-Regular.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url('/fonts/IBMPlexMono-Medium.ttf') format('truetype');font-weight:500;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url('/fonts/IBMPlexMono-Bold.ttf') format('truetype');font-weight:700;font-display:swap}

/* ── 13 tokens from ASSETS.md §2 ── */
:root{
  --ink:#201D1D;        /* headings, body, button fill */
  --inkdark:#131010;
  --paper:#FDFCFC;      /* page background */
  --surface:#F8F7F7;    /* cards, panels, muted sections */
  --surface-hover:#F1EEEE;
  --border:#D0CFCE;     /* 1px hairlines */
  --secondary:#646262;  /* body copy, nav links */
  --muted:#9A9898;      /* tertiary, decorative only */
  --darkbg:#131010;     /* terminal */
  --darkborder:#3D3838;
  --darktext:#F2EDED;
  --darksecondary:#B8B2B2;
  --darkmuted:#7F7A7A;
  --accent:#F8FAC7;     /* dark/ink surfaces + focus only */
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'IBM Plex Mono',ui-monospace,'SF Mono',Menlo,monospace;
  background:var(--paper);color:var(--ink);
  font-size:16px;line-height:1.6;letter-spacing:0;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-weight:700;letter-spacing:0}
img{max-width:100%;display:block}
.container{max-width:1100px;margin:0 auto;padding:0 24px}
.container.narrow{max-width:760px}

/* Selection + focus — accent on ink only */
::selection{background:var(--accent);color:var(--ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
:focus:not(:focus-visible){outline:none}

/* ── Components (ASSETS.md §4) ── */
.btn{display:inline-block;border-radius:10px;padding:12px 24px;font-weight:500;font-size:15px;line-height:1.4;cursor:pointer;transition:background .15s,border-color .15s,color .15s;text-align:center}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--inkdark)}
.btn-secondary{border:1px solid var(--border);color:var(--ink);background:transparent}
.btn-secondary:hover{border-color:var(--inkdark)}

.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:24px;transition:background .15s,border-color .15s}
.card-hover:hover{background:var(--surface-hover);border-color:#C9C7C5}

/* ── Nav ── */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;border-bottom:1px solid var(--border);background:rgba(253,252,252,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand-mark{height:36px;width:auto;border-radius:7px;object-fit:cover}
.brand-mark.sm{height:24px}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a:not(.btn){font-size:14px;font-weight:500;color:var(--secondary);transition:color .15s}
.nav-links a:not(.btn):hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px}

/* ── Hero ── */
.hero{padding:160px 0 96px}
.eyebrow{margin-bottom:24px;font-size:13px;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
h1{font-size:44px;line-height:1.15;max-width:16ch;margin-bottom:28px}
.lede{margin:0 0 40px;max-width:52ch;font-size:16px;color:var(--secondary)}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}

/* ── Proof bar ── */
.proof{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--surface)}
.proof-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:56px 0}
.proof-val{font-size:28px;font-weight:700;color:var(--ink);margin-bottom:4px}
.proof-label{font-size:13px;color:var(--muted)}

/* ── Sections ── */
.section{padding:128px 0}
.section.alt{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section h2, .cta h2{font-size:24px;line-height:1.3;margin-bottom:16px}
.sub{margin-bottom:56px;font-size:16px;color:var(--secondary);max-width:52ch}

/* Feature grid */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card h3{font-size:16px;margin-bottom:10px}
.card p{font-size:15px;line-height:1.6;color:var(--secondary)}

/* ── Terminal block (dark — the one place the accent belongs) ── */
.term-section{padding:40px 0 0}
.terminal{background:var(--darkbg);border:1px solid var(--darkborder);border-radius:12px;overflow:hidden}
.term-bar{display:flex;align-items:center;gap:7px;border-bottom:1px solid var(--darkborder);padding:14px 20px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--darkmuted)}
.term-title{margin-left:12px;font-size:13px;color:var(--darkmuted)}
.term-body{padding:26px 20px;font-size:14px;line-height:1.7}
.term-body p{color:var(--darktext)}
.t-sec{color:var(--darksecondary)}
.t-mut{color:var(--darkmuted)}
.term-body .accent-line{background:var(--accent);color:var(--ink);padding:1px 6px}

/* ── Steps ── */
.steps{display:flex;flex-direction:column;gap:40px}
.step{display:flex;gap:24px;max-width:60ch}
.step-num{font-size:24px;font-weight:700;color:var(--ink);min-width:3ch}
.step h3{font-size:16px;margin-bottom:8px}
.step p{font-size:15px;color:var(--secondary)}
.step p a{text-decoration:underline;text-underline-offset:3px}

/* ── FAQ accordion ── */
.faq{border-top:1px solid var(--border)}
.faq-item{border-bottom:1px solid var(--border)}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-item.open{border-left:2px solid var(--ink);padding-left:16px}
.faq-q{display:flex;width:100%;align-items:center;justify-content:space-between;background:none;border:none;padding:20px 0;font:500 16px 'IBM Plex Mono',monospace;color:var(--ink);cursor:pointer;text-align:left}
.faq-icon{font-size:22px;line-height:1;color:var(--secondary);transition:transform .15s}
.faq-a{display:none;padding:0 0 20px;font-size:15px;color:var(--secondary)}
.faq-item.open .faq-a{display:block}
.faq-a a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}

/* ── CTA ── */
.cta{padding:128px 0;text-align:center}
.cta-sub{margin:0 0 40px;font-size:16px;color:var(--secondary)}

/* ── Footer ── */
.footer{border-top:1px solid var(--border)}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:40px 0}
.footer-brand{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted)}
.footer-links{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted)}
.footer-links a{transition:color .15s}
.footer-links a:hover{color:var(--ink)}

@media(max-width:820px){
  .hero{padding:120px 0 64px}
  h1{font-size:34px}
  .grid{grid-template-columns:1fr}
  .proof-grid{grid-template-columns:repeat(2,1fr)}
  .nav-links a:not(.btn){display:none}
}