/* Self-hosted IBM Plex Mono (OFL) — no Google Fonts dependency, faster on ID network */
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/ibmplex-400.woff2) format('woff2');}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/ibmplex-500.woff2) format('woff2');}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/ibmplex-600.woff2) format('woff2');}
/* Syne (SIL OFL) — avant-garde display voice from craftkit guidance */
@font-face{font-family:'Syne';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/syne-600.woff2) format('woff2');}
@font-face{font-family:'Syne';font-style:normal;font-weight:700;font-display:swap;src:url(fonts/syne-700.woff2) format('woff2');}
/* Lunero V3 — BASE (palette, base, type, header, hero, cards) */
:root{
  color-scheme: dark;
  --ground:  #13110D; --surface: #1E1B16; --surface-2:#2A261F;
  --paper:   #F4F1E8; --ink-2:#A9A192; --rule:#38342B; --rule-2:#4A453B;
  --accent:  #E0531E; --accent-2:#E8A33D; /* warm amber — secondary pop (solid, not gradient) */
  --accent-soft:rgba(224,83,30,.14);
  --mono:"IBM Plex Mono",ui-monospace,"SF Mono",Menlo,monospace;
  --sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --display:"Syne",var(--mono); /* Syne (craftkit "Fashion Forward"): avant-garde creative heading */
  --r:2px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;color:var(--paper);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;}
::selection{background:var(--accent);color:var(--ground);}
html{caret-color:var(--accent);}
::-webkit-scrollbar{width:12px;height:12px;}
::-webkit-scrollbar-thumb{background:var(--rule-2);}
::-webkit-scrollbar-track{background:var(--ground);}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
a{color:var(--accent);text-underline-offset:3px;text-decoration-thickness:1px;}
.tabular{font-variant-numeric:tabular-nums;}

/* Type — major-third (1.25) scale per web-design skill */
.display{font-family:var(--display);font-weight:700;line-height:1.05;letter-spacing:-0.02em;text-wrap:balance;} /* Syne avant-garde display */
.mono-display{font-family:var(--mono);font-weight:600;line-height:1.1;letter-spacing:-0.02em;}
.h1{font-size:clamp(2.4rem,7vw,4.9rem);}.h2{font-size:clamp(1.6rem,4vw,2.6rem);}.h3{font-family:var(--mono);font-weight:500;font-size:1.05rem;}
.spec-label{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);}
.body-lead{font-size:1.1rem;color:var(--ink-2);max-width:60ch;line-height:1.6;}
body{font-size:16px;line-height:1.6;}
p{max-width:65ch;color:var(--ink-2);}

/* Space */
.wrap{max-width:1100px;margin:0 auto;padding:0 24px;}
section{padding:96px 0;}section.tight{padding:72px 0;}

/* Header */
.site-head{padding:20px 0;border-bottom:1px solid var(--rule);background:var(--ground);}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{font-family:var(--mono);font-weight:600;letter-spacing:-.01em;color:var(--paper);}
.brand .mark{color:var(--accent);}
.nav{display:flex;gap:8px;}
.nav a{font-family:var(--mono);font-size:.8rem;padding:8px 10px;color:var(--ink-2);text-decoration:none;}
.nav a:hover{color:var(--paper);background:var(--surface);border-radius:var(--r);}
.nav a:active{transform:scale(0.97);}

/* Buttons */
.btn{font-family:var(--mono);font-size:.85rem;letter-spacing:.04em;padding:13px 22px;border-radius:var(--r);border:1px solid var(--paper);background:var(--paper);color:var(--ground);cursor:pointer;text-decoration:none;display:inline-block;font-weight:500;}
.btn:active{transform:scale(0.97);}
.btn.accent{background:var(--accent);border-color:var(--accent);color:var(--ground);}
.btn.ghost{background:transparent;color:var(--paper);}
.btn.ghost:hover{background:var(--surface);}
.btn:disabled{opacity:.5;cursor:not-allowed;}

/* Hero specimen */
.hero{padding:64px 0;}
.specimen-hero{border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:20px 0;}
.spec-line{display:flex;align-items:baseline;gap:20px;cursor:pointer;padding:10px 4px;border-radius:var(--r);transition:background 160ms ease-out;}
.spec-line:hover{background:var(--surface);}
.spec-line.active{background:var(--accent-soft);box-shadow:inset 2px 0 0 var(--accent);}
.spec-line .pair{font-family:var(--mono);font-weight:600;font-size:clamp(3rem,9vw,6.5rem);line-height:1;}
.spec-line .meta{font-family:var(--mono);font-size:.74rem;color:var(--ink-2);letter-spacing:.04em;}
.spec-line.active .pair{color:var(--accent);}

/* Cards */
.card{background:var(--surface);border:1px solid var(--rule);border-radius:var(--r);padding:26px;}
.card h3{margin:0 0 10px;color:var(--paper);}.card p{margin:0;}.card .idx{color:var(--accent);}