/* Philippines Robotics Club — shared stylesheet. No fonts, no images. */
:root{--bg:#0d1117;--card:#161b22;--line:#30363d;--ink:#e6edf3;--dim:#9aa4b0;--wire:#8b949e;
      /* Philippine flag palette — SITE CHROME ONLY. lesson-*.html keep their own semantic colours. */
      --ph-blue:#0038A8;--ph-blue-lt:#5b9bff;--ph-red:#CE1126;--ph-red-lt:#f2636b;--ph-yellow:#FCD116;--ph-white:#fff;
      --l2:var(--ph-yellow);     /* local language = yellow = the flag's sun */
      --cu:var(--ph-blue-lt);
      --live:#3fb950;            /* used ONLY inside lesson-style drawings (flow / charge), never for site status */
      --off:#6e7681}             /* neutral "off / not yet" — red is NEVER a status colour on the site */
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html{-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink);min-height:100vh;
  font:clamp(16px,1vw + 12px,19px)/1.45 ui-sans-serif,-apple-system,"Segoe UI",system-ui,sans-serif}
a{color:inherit}
.wrap{max-width:780px;margin:0 auto;padding:0 16px}

/* Tagalog is the line, English the gloss beneath — never the reverse. */
.en{display:block;font-size:.8em;color:var(--dim);font-weight:400;margin-top:.1em}

/* ---- nav ---- */
.nav{border-bottom:1px solid var(--line);background:var(--bg);position:relative}
/* flag stripe: blue / red, with the sun's yellow as a thin rule — decorative only */
.nav::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;
  background:linear-gradient(90deg,var(--ph-blue) 0 50%,var(--ph-red) 50% 100%)}
.stars{margin:30px auto 6px;width:120px}
.stars svg{display:block;width:100%;height:auto}
.nav .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:4px 10px;padding-top:8px;padding-bottom:8px}
.brand{text-decoration:none;font-weight:800;color:var(--l2);font-size:1.05em;line-height:1.1;
  padding:8px 0;margin-right:auto;min-height:44px;display:flex;flex-direction:column;justify-content:center}
.brand .en{font-size:.68em;letter-spacing:.08em;text-transform:uppercase}
.links{display:flex;flex-wrap:wrap;gap:4px}
.links a{text-decoration:none;font-weight:700;font-size:.9em;line-height:1.1;color:var(--ink);
  min-height:44px;padding:6px 10px;border-radius:10px;display:flex;flex-direction:column;justify-content:center}
.links a .en{font-size:.72em}
.links a[aria-current]{background:var(--card);color:var(--ph-blue-lt);border:1px solid var(--ph-blue-lt)}
.links a:active{background:var(--card)}

/* ---- type ---- */
main{padding:28px 0 40px}
.kick{font-size:.72em;letter-spacing:.18em;text-transform:uppercase;color:var(--ph-blue-lt);font-weight:700;margin-bottom:8px}
h1{font-size:clamp(28px,4.2vw,44px);line-height:1.08;color:var(--l2);font-weight:800}
h1 .en{font-size:.5em;margin-top:8px}
h2{font-size:clamp(21px,2.4vw,27px);line-height:1.15;color:var(--l2);font-weight:800;margin:36px 0 12px}
h2 .en{font-size:.62em}
h3{font-size:1.05em;color:var(--l2);line-height:1.2;margin-bottom:4px}
p{margin:0 0 12px}
.lead{font-size:1.1em;margin:16px 0 22px}
.lead .en{font-size:.85em}
ul.list{list-style:none}
ul.list li{padding:10px 0 10px 26px;border-top:1px solid var(--line);position:relative}
ul.list li:first-child{border-top:0}
ul.list li::before{content:"";position:absolute;left:4px;top:19px;width:9px;height:9px;border-radius:50%;background:var(--l2)}
.muted{color:var(--dim)}

/* ---- buttons: 48px tall, thumb-sized ---- */
.btns{display:flex;flex-wrap:wrap;gap:10px;margin:8px 0 6px}
.btn{display:inline-flex;flex-direction:column;justify-content:center;min-height:52px;padding:8px 20px;
  border-radius:13px;text-decoration:none;font-weight:800;line-height:1.1;border:2px solid var(--l2);
  background:var(--l2);color:#0d1117}
.btn .en{color:#0d1117;opacity:.7;font-size:.72em}
.btn.ghost{background:transparent;color:var(--ph-blue-lt);border-color:var(--ph-blue-lt)}
.btn.ghost .en{color:var(--dim);opacity:1}
.btn:active{transform:translateY(1px)}

/* ---- cards ---- */
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin-bottom:10px}
.grid{display:grid;gap:10px;grid-template-columns:1fr}
@media(min-width:640px){.grid.c2{grid-template-columns:1fr 1fr}.grid.c3{grid-template-columns:1fr 1fr 1fr}.grid.c4{grid-template-columns:repeat(4,1fr)}}
.grid .card{margin:0}
.fact{text-align:center;padding:14px 10px}
.fact b{display:block;font-size:1.35em;color:var(--l2);line-height:1.1}
.fact{border-top:3px solid var(--ph-blue)}
.fact:nth-child(2n){border-top-color:var(--ph-red)}
.step{display:flex;gap:14px;align-items:flex-start}
.step .n{flex:none;width:40px;height:40px;border-radius:50%;background:var(--ph-blue);color:var(--ph-white);
  font-weight:800;font-size:1.2em;display:flex;align-items:center;justify-content:center}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 4px}
.chip{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:9px 14px;font-weight:700;font-size:.92em;line-height:1.1;min-height:40px;display:flex;align-items:center}
.chip.t{color:var(--l2)}
.box{margin-top:18px;background:var(--card);border:1px dashed var(--line);border-radius:14px;padding:16px 18px}
.box b{color:var(--l2);display:block;font-size:1.1em;margin-bottom:4px}
.fig{margin:22px 0;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:12px}
.fig svg{width:100%;height:auto;display:block;touch-action:manipulation;user-select:none}
.fig .cap{color:var(--dim);font-size:.85em;margin:10px 4px 0}
.status{display:flex;align-items:center;gap:12px;margin-top:12px;padding:10px 14px;border:1px solid var(--line);border-radius:12px}
.status .dot{width:22px;height:22px;border-radius:50%;flex:none;background:var(--off)}
.status .msg{font-weight:800;font-size:1.1em;line-height:1.1}
.status .msg .en{font-size:.68em}

/* ---- lesson rows (lessons.html) ---- */
.row{display:flex;gap:14px;align-items:flex-start;background:var(--card);border:1px solid var(--line);
  border-radius:13px;padding:14px 16px;margin-bottom:10px;text-decoration:none;color:inherit;min-height:60px}
a.row:active{border-color:var(--l2)}
.row .num{flex:none;width:34px;font-size:1.3em;font-weight:800;color:var(--l2);font-variant-numeric:tabular-nums;line-height:1.15}
.row .body{flex:1;min-width:0}
.row .t{font-size:1.05em;font-weight:700;color:var(--l2);line-height:1.22}
.row .t .en{font-size:.74em}
.tag{flex:none;align-self:center;font-size:.62em;letter-spacing:.1em;font-weight:800;text-transform:uppercase;
  padding:5px 10px;border-radius:999px;white-space:nowrap;line-height:1.1;text-align:center}
.tag.go{background:var(--ph-blue);color:var(--ph-white)}
.tag.soon{background:#21262d;color:var(--dim)}   /* neutral grey: "not yet", never red */
.row.soon{opacity:.5}
.row.soon .num,.row.soon .t{color:var(--dim)}

/* ---- tables (schools.html) ---- */
table{width:100%;border-collapse:collapse;font-size:.92em;margin:10px 0 18px}
th,td{text-align:left;vertical-align:top;padding:9px 8px;border-top:1px solid var(--line)}
th{color:var(--dim);font-size:.78em;letter-spacing:.1em;text-transform:uppercase;border-top:0}
td.n{color:var(--l2);font-weight:800;width:2.2em;font-variant-numeric:tabular-nums}
td b{color:var(--l2)}
td .en{font-size:.86em}
.tbl{overflow-x:auto}

/* ---- footer ---- */
footer{border-top:1px solid var(--line);padding:6px 0 36px;color:var(--dim);font-size:.88em}
footer .wrap{display:flex;flex-direction:column;gap:10px}
footer nav{display:flex;flex-wrap:wrap;gap:4px 2px}
footer nav a{min-height:44px;display:inline-flex;align-items:center;padding:0 10px 0 0;text-decoration:none;font-weight:700;color:var(--ink)}
footer nav a::after{content:"·";margin-left:10px;color:var(--line)}
footer nav a:last-child::after{content:""}
.ph{opacity:.7;font-size:.9em;border-left:3px solid var(--l2);padding-left:10px}

/* ===== motion — transform + opacity ONLY; pictures move, text never does ===== */
.btn,.links a,footer nav a,a.row,.brand{transition:transform .12s ease-out,border-color .12s}
.btn:active,.links a:active,footer nav a:active,.brand:active{transform:scale(.96)}
a.row:active{transform:translateY(-2px);border-color:var(--l2)}
.tag{position:relative}
.tag.go::after{content:"";position:absolute;inset:-3px;border:2px solid var(--ph-blue-lt);border-radius:999px;
  opacity:0;animation:ring 2.6s ease-out infinite}
@keyframes ring{0%{transform:scale(.92);opacity:.7}60%{transform:scale(1.3);opacity:0}100%{opacity:0}}
/* once-only reveal, opacity only — added by site.js, so no JS = everything simply visible */
html.anim .rv{opacity:0;transition:opacity .35s ease-out}
html.anim .rv.in{opacity:1}
/* idle motion lives on the pages' SVGs (see index.html, events.html); this kills all of it */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html.anim .rv{opacity:1}
}

/* --- watch: static thumbnails that link out. No iframes: a YouTube embed is
   ~300 KB before anyone presses play, which would dwarf this whole site. --- */
.vids{display:grid;gap:10px;grid-template-columns:1fr}

.vid{position:relative;display:block;border:1px solid var(--line);border-radius:14px;
     overflow:hidden;background:var(--card);text-decoration:none;color:inherit}
.vid img{display:block;width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;
         filter:saturate(.85) brightness(.82);transition:filter .18s,transform .18s}
.vid:active img{filter:none;transform:scale(1.02)}
.vid .play{position:absolute;top:34%;left:50%;width:48px;height:48px;margin:-24px 0 0 -24px;
   border-radius:50%;background:rgba(13,17,23,.72);border:2px solid var(--ph-yellow)}
.vid .play::after{content:"";position:absolute;top:50%;left:54%;transform:translate(-50%,-50%);
   border-left:15px solid var(--ph-yellow);border-top:9px solid transparent;border-bottom:9px solid transparent}
.vid .vt{display:block;padding:11px 13px;font-weight:700;color:var(--l2);line-height:1.2}
.vid .vt .en{display:block;font-size:.72em;font-weight:400;color:var(--dim);margin-top:2px}
@media(prefers-reduced-motion:reduce){.vid img{transition:none}}

@media(min-width:560px){.vids{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1000px){.vids{grid-template-columns:repeat(4,1fr)}}