/* ================================================================
   ●-Language — Shared stylesheet
   Technical / precise dark aesthetic for a constructed-language system
   ================================================================ */
:root{
  --bg:#08090d;
  --bg-elev:#0e1017;
  --card:#11141c;
  --card-hover:#151925;
  --border:#1c2130;
  --border-bright:#2b3350;
  --text:#e9ebf0;
  --text-dim:#9aa2b4;
  --text-faint:#6b7488;
  --accent:#5b8cff;
  --accent-2:#7c5cff;
  --glyph:#8fb0ff;
  --ok:#34d399;
  --radius:14px;
  --maxw:1200px;
  --font-body:"Geist","Noto Sans Devanagari","Noto Sans Ethiopic","Inter",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","Geist Mono",ui-monospace,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-body);line-height:1.6;
  -webkit-font-smoothing:antialiased;
  background-image:radial-gradient(60rem 40rem at 80% -10%,rgba(91,140,255,.07),transparent),
                   radial-gradient(50rem 40rem at -10% 10%,rgba(124,92,255,.05),transparent);
}
body[dir="rtl"]{font-family:"Geist","Segoe UI","Noto Sans Arabic",system-ui,sans-serif}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 1.5rem}

/* ---------- NAV ---------- */
nav.top{position:sticky;top:0;z-index:60;background:rgba(8,9,13,.82);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav-inner{max-width:var(--maxw);margin:0 auto;height:64px;padding:0 1.5rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem}
.brand{display:flex;align-items:center;gap:.65rem;font-weight:700;font-size:1.35rem;letter-spacing:-.02em}
.brand svg{width:30px;height:30px;flex:none}
.brand-earth{width:30px;height:30px;flex:none;border-radius:50%;object-fit:cover;
  box-shadow:0 0 0 1px rgba(91,140,255,.35),0 0 14px rgba(91,140,255,.25)}
/* Earth dot in the hero heading (replaces the solid ● dot) */
.hero-earth{height:.92em;width:.92em;border-radius:50%;object-fit:cover;
  vertical-align:-0.08em;margin-inline-end:.04em;display:inline-block;
  box-shadow:0 0 0 1px rgba(91,140,255,.35),0 0 26px rgba(91,140,255,.35);
  animation:earthspin 32s linear infinite}
@keyframes earthspin{from{filter:brightness(1)}50%{filter:brightness(1.08)}to{filter:brightness(1)}}
@media(prefers-reduced-motion:reduce){.hero-earth{animation:none}}
.nav-links{display:flex;align-items:center;gap:.5rem}
.nav-btn{padding:.5rem .95rem;border-radius:11px;font-size:.85rem;font-weight:600;
  color:var(--text-dim);transition:.18s;display:inline-flex;align-items:center;gap:.5rem;white-space:nowrap}
.nav-btn:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-btn.active{color:var(--text);background:rgba(255,255,255,.07)}
.nav-btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff}
.nav-btn.primary:hover{filter:brightness(1.08)}

/* language dropdown */
.lang{position:relative}
.lang-btn{display:flex;align-items:center;gap:.5rem;background:var(--bg-elev);
  border:1px solid var(--border);border-radius:11px;padding:.5rem .8rem;font-size:.82rem;
  color:var(--text);cursor:pointer;transition:.18s}
.lang-btn:hover{border-color:var(--border-bright)}
.lang-badge{display:inline-flex;align-items:center;justify-content:center;width:26px;height:19px;
  font-size:10px;font-weight:800;color:#fff;border-radius:4px}
.lang-menu{position:absolute;inset-inline-end:0;margin-top:.5rem;width:220px;background:var(--bg-elev);
  border:1px solid var(--border);border-radius:13px;box-shadow:0 20px 50px rgba(0,0,0,.55);
  padding:.4rem;z-index:70;max-height:70vh;overflow:auto}
.lang-menu .hint{padding:.4rem .6rem;font-size:.7rem;color:var(--text-faint);text-transform:uppercase;letter-spacing:.06em}
.lang-item{display:flex;align-items:center;gap:.6rem;padding:.5rem .6rem;border-radius:9px;cursor:pointer;font-size:.85rem}
.lang-item:hover{background:rgba(255,255,255,.05)}
.lang-item[aria-selected="true"]{background:rgba(91,140,255,.12)}
.hidden{display:none!important}

.hamb{display:none;width:42px;height:42px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--border);border-radius:10px;color:var(--text);cursor:pointer;font-size:1.1rem}
.mobile-menu{display:none;border-top:1px solid var(--border);background:var(--bg-elev)}
.mobile-menu a{display:flex;align-items:center;gap:.6rem;padding:.85rem 1.5rem;color:var(--text-dim);font-weight:600}
.mobile-menu a:hover{color:var(--text);background:rgba(255,255,255,.04)}

@media(max-width:860px){
  .nav-links .nav-btn:not(.lang-host){display:none}
  .hamb{display:flex}
  .mobile-menu.open{display:block}
}

/* ---------- HERO ---------- */
.hero{min-height:78vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:4rem 1.5rem}
.hero h1{font-size:clamp(3rem,8vw,5.5rem);font-weight:800;letter-spacing:-.04em;margin:0 0 1rem;line-height:1}
.hero .dot{color:var(--accent)}
.hero p{font-size:clamp(1.05rem,2.4vw,1.4rem);color:var(--text-dim);max-width:46rem;margin:0 auto 2.4rem}
.hero-cta{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}
.btn{padding:.85rem 1.7rem;border-radius:13px;font-weight:650;font-size:.98rem;transition:.18s;
  display:inline-flex;align-items:center;gap:.6rem;cursor:pointer;border:1px solid transparent}
.btn-fill{background:#fff;color:#0a0c10}.btn-fill:hover{filter:brightness(.92)}
.btn-ghost{border-color:rgba(255,255,255,.22);color:var(--text)}.btn-ghost:hover{background:rgba(255,255,255,.07)}
.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff}.btn-accent:hover{filter:brightness(1.08)}
.btn-soft{background:var(--card);border-color:var(--border);color:var(--text)}.btn-soft:hover{border-color:var(--border-bright)}

/* ---------- SECTIONS ---------- */
section.block{padding:3.5rem 0;max-width:var(--maxw);margin:0 auto}
.section-title{font-size:clamp(1.6rem,3.6vw,2.1rem);font-weight:750;letter-spacing:-.02em;margin:0 0 .5rem}
.section-sub{color:var(--text-dim);max-width:52rem;margin:0 0 2rem;font-size:1.02rem}
.grid{display:grid;gap:1.1rem}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}

.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.5rem;transition:.2s}
.card:hover{border-color:var(--border-bright);background:var(--card-hover);transform:translateY(-2px)}
.card h3{margin:0 0 .5rem;font-size:1.05rem;font-weight:680}
.card p{margin:0;color:var(--text-dim);font-size:.92rem}
.card .ic{font-size:1.5rem;color:var(--glyph);margin-bottom:.4rem}

.layer{display:flex;gap:1rem;align-items:flex-start}
.layer .num{flex:none;width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  font-weight:750;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff}
.layer h4{margin:.15rem 0 .3rem;font-size:1.02rem}
.layer p{margin:0;color:var(--text-dim);font-size:.92rem}

/* Resource cards are informational (not links): align to top, no hover-lift */
.res{display:flex;gap:1rem;align-items:flex-start}
.res .ic{flex:none;line-height:1.1}
.res:hover{transform:none;background:var(--card);border-color:var(--border)}
.res h3{margin:.1rem 0 .35rem}
.res p{font-size:.88rem;line-height:1.5}
/* monospace technical cells (WAVE tokens, CRC) */
.c-mono{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.01em}

/* ---------- TABLE ---------- */
.tools{display:flex;gap:.75rem;flex-wrap:wrap;align-items:center;margin-bottom:1.2rem}
.search{flex:1;min-width:220px;background:var(--card);border:1px solid var(--border);border-radius:12px;
  padding:.75rem 1rem;color:var(--text);font-size:.9rem;font-family:inherit}
.search:focus{outline:none;border-color:var(--accent)}
.table-scroll{border:1px solid var(--border);border-radius:var(--radius);overflow:auto;max-height:76vh}
table{width:100%;border-collapse:collapse;font-size:.82rem}
thead th{position:sticky;top:0;z-index:5;background:var(--bg-elev);color:var(--text-dim);
  font-weight:640;text-align:start;padding:.7rem .8rem;border-bottom:1px solid var(--border);white-space:nowrap}
tbody td{padding:.65rem .8rem;border-bottom:1px solid var(--border);vertical-align:top}
tbody tr:hover{background:rgba(255,255,255,.02)}
.c-no{color:var(--text-faint);font-family:var(--font-mono);font-size:.78rem}
.c-neil{font-family:var(--font-mono);color:var(--text)}
.c-acu2{font-family:var(--font-mono);color:var(--glyph);font-size:.95rem;letter-spacing:.05em}
.c-tr{font-weight:600}
.c-dim{color:var(--text-dim);font-size:.78rem}

/* mini preview table on home */
.mini td,.mini th{padding:.6rem .8rem}

/* ---------- FOOTER ---------- */
footer{border-top:1px solid var(--border);padding:2.5rem 1.5rem;text-align:center;color:var(--text-faint);font-size:.85rem;margin-top:2rem}
footer .lic{margin-top:.6rem;font-size:.78rem}
footer a{color:var(--accent)}

/* days accent chips */
.day-tag{display:inline-block;font-family:var(--font-mono);font-size:.72rem;color:var(--accent);
  border:1px solid var(--border-bright);border-radius:20px;padding:.1rem .6rem;margin-bottom:.6rem}

/* RTL fixes */
body[dir="rtl"] .layer .num{transform:scaleX(1)}
body[dir="rtl"] .c-acu2,body[dir="rtl"] .c-neil{direction:ltr;text-align:right;unicode-bidi:embed}