/* rilala app site. Layout: slim header, one centred column per page, app pages carry their own palette. */
:root{
  --paper:#F7F6F2;
  --surface:#FFFFFF;
  --ink:#1A1B2E;
  --muted:#55576B;
  --line:#E4E2DA;
  --coral:#FF5B3A;          /* logo colour */
  --coral-strong:#C63A1B;   /* buttons and links: passes contrast on white and paper */
  --on-coral:#FFFFFF;
  --font-display:"Fredoka", ui-rounded, system-ui, sans-serif;
  --font-body:"Noto Sans HK", "DM Sans", system-ui, -apple-system, "PingFang HK", "Microsoft JhengHei", sans-serif;
  --radius:18px;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#13141F; --surface:#1C1D2B; --ink:#F2F1EC; --muted:#A5A7BA; --line:#2E3042;
    --coral:#FF7254; --coral-strong:#FF8F75; --on-coral:#1A1B2E;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --paper:#13141F; --surface:#1C1D2B; --ink:#F2F1EC; --muted:#A5A7BA; --line:#2E3042;
  --coral:#FF7254; --coral-strong:#FF8F75; --on-coral:#1A1B2E;
  color-scheme:dark;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--paper);color:var(--ink);font-family:var(--font-body);font-size:17px;line-height:1.7;-webkit-text-size-adjust:100%}
:lang(en) body, body:lang(en){font-family:"DM Sans", "Noto Sans HK", system-ui, sans-serif}
a{color:var(--coral-strong)}
a:focus-visible,button:focus-visible{outline:3px solid var(--coral);outline-offset:3px;border-radius:8px}
img{max-width:100%}
h1,h2,h3{line-height:1.25;text-wrap:balance;margin:0}
.wrap{max-width:1040px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (max-width:420px){.wrap{padding-left:16px;padding-right:16px}}

/* header */
.site-header{border-bottom:1px solid var(--line);background:var(--paper)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px}
.logo{display:block;line-height:0}
.logo svg{display:block;width:auto}
.nav{display:flex;gap:4px;flex-wrap:wrap;align-items:center}
.nav a{text-decoration:none;color:var(--muted);font-weight:500;font-size:15px;padding:10px 12px;border-radius:999px;min-height:44px;display:inline-flex;align-items:center}
.nav a:hover{color:var(--ink);background:var(--surface)}
.nav a[aria-current="page"]{color:var(--ink);background:var(--surface);box-shadow:inset 0 0 0 1px var(--line)}
.nav a.lang{color:var(--ink);font-weight:700;box-shadow:inset 0 0 0 1.5px var(--line);margin-left:6px}
.nav a.lang:hover{box-shadow:inset 0 0 0 1.5px var(--ink)}

/* buttons */
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;font-weight:700;font-size:16px;padding:12px 22px;min-height:48px;border-radius:999px}
.btn.primary{background:var(--coral-strong);color:var(--on-coral)}
.btn.primary:hover{filter:brightness(1.06)}
.btn.ghost{background:var(--surface);color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--line)}
.btn.ghost:hover{box-shadow:inset 0 0 0 1.5px var(--ink)}

/* home */
.hero{padding:72px 0 56px}
.hero h1{font-family:var(--font-display);font-weight:600;font-size:clamp(44px,8vw,84px);letter-spacing:-1px;line-height:1.05}
.hero h1 .r{color:var(--coral)}
.hero p{font-size:clamp(18px,2.2vw,21px);color:var(--muted);max-width:36ch;margin:20px 0 28px}
section.band{padding:48px 0;border-top:1px solid var(--line)}
.band h2{font-size:clamp(26px,3.4vw,34px);margin-bottom:8px}
.band .sub{color:var(--muted);margin:0 0 24px;max-width:60ch}
.apps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media (max-width:720px){.apps{grid-template-columns:1fr}}
.appcard{display:flex;gap:18px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-decoration:none;color:inherit}
a.appcard:hover{border-color:var(--ink)}
.appcard img{width:84px;height:84px;border-radius:22px;flex:none}
.appcard .ph{width:84px;height:84px;border-radius:22px;flex:none;border:2px dashed var(--line);display:grid;place-items:center;color:var(--muted);font-size:30px}
.appcard h3{font-size:21px;margin-bottom:4px}
.appcard p{margin:0;color:var(--muted)}
.tag{display:inline-block;font-size:13px;font-weight:700;border-radius:999px;padding:2px 10px;margin-bottom:6px;background:color-mix(in srgb,var(--coral) 14%,var(--surface));color:var(--coral-strong)}
.teaser{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.teaser p{margin:0;color:var(--muted);max-width:60ch}

/* text pages */
.doc{max-width:720px;padding:56px 0 72px}
.doc h1{font-size:clamp(32px,5vw,44px);margin-bottom:24px}
.doc h2{font-size:24px;margin:36px 0 8px}
.doc p,.doc li{max-width:65ch}
.doc .lead{font-size:19px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.contact strong{font-size:20px;display:block;margin:4px 0 8px}
.contact ul{margin:8px 0 0;padding-left:20px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 18px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:700;min-height:28px}
.faq details p{margin:8px 0 0;color:var(--muted)}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:28px 0 40px;color:var(--muted);font-size:14px}
.foot{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.fbrand{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.flogo{display:block;line-height:0}
.flinks{display:flex;gap:6px 16px;flex-wrap:wrap}
.flinks a{color:var(--muted)}
.flinks a:hover{color:var(--ink)}

/* Mo Mo page: palette from the app brief */
.momo{--sea:#C5F4FE;--mink:#1D2945;--mred:#CC2B2B;--mnavy:#1F3A6E;--pass:#2C8452}
.momo h1,.momo h2,.momo h3{font-family:"LXGW WenKai TC","Noto Sans HK",serif;font-weight:700}
.momo:lang(en) h1,.momo:lang(en) h2,.momo:lang(en) h3{font-family:var(--font-display);font-weight:600}
.mhero{margin:32px 0 20px;border-radius:28px;background:var(--sea) url("ocean-bg.webp") center 70%/cover no-repeat;padding:48px 40px 56px;color:#1D2945}
.mhero-text{max-width:560px;display:flex;flex-direction:column;gap:12px;background:rgba(242,244,238,.88);border-radius:22px;padding:28px}
.micon{width:120px;height:120px;border-radius:28px;box-shadow:0 8px 24px rgba(14,42,74,.18)}
.mstatus{align-self:flex-start;font-size:14px;font-weight:700;color:#1F3A6E;background:#fff;border-radius:999px;padding:4px 12px}
.mhero h1{font-size:clamp(38px,6vw,56px);color:#1D2945}
.mhero h1 span{display:block;font-family:var(--font-display);font-size:.42em;color:#1F3A6E;letter-spacing:.02em;margin-top:4px}
.msub{margin:0;font-size:20px;font-weight:700;color:#CC2B2B}
.mlead{margin:0;font-size:17px;color:#1D2945}
.mghost{background:#fff;color:#1D2945;box-shadow:inset 0 0 0 1.5px #1D2945}
.mfacts{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:4px 0 0;padding:0}
.mfacts li{font-size:14px;font-weight:700;color:#1E6B40;background:#E3F3EA;border-radius:999px;padding:4px 12px}
.mband{padding:40px 0;border-top:1px solid var(--line)}
.mband h2{font-size:clamp(26px,3.4vw,34px);margin-bottom:14px}
.mintro{max-width:65ch;color:var(--muted);margin:0 0 24px}
.mpain{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
@media (max-width:900px){.mpain{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.mpain{grid-template-columns:1fr}}
.mpain div{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px}
.mpain p{margin:6px 0 0;color:var(--muted);font-size:15px}
.msteps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
@media (max-width:760px){.msteps{grid-template-columns:1fr}}
.msteps li{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:6px}
.msteps p{margin:0;color:var(--muted)}
.mnum{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:#CC2B2B;color:#fff;font-weight:700}
.mfeat{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
@media (max-width:760px){.mfeat{grid-template-columns:1fr}}
.mfeat article{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px}
.mfeat h3{font-size:22px;margin-bottom:8px}
.mfeat ul{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px}
.mfeat li{color:var(--muted)}
.mfeat b{color:var(--ink)}
.mprivacy{border-color:#2C8452!important}
.mprivacy a{display:inline-block;margin-top:12px;font-weight:700}
.mmarks{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.mk{font-size:13px;font-weight:700;border-radius:8px;padding:2px 10px;color:#fff}
.mk.red{background:#CC2B2B}.mk.yellow{background:#F2B705;color:#1D2945}.mk.hash{background:#1F3A6E}.mk.green{background:#2C8452}
.mfriends{display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.mfriends p{color:var(--muted);max-width:44ch;margin:0}
.mavatars{display:flex;flex-wrap:wrap;gap:10px}
.mavatars img{width:88px;height:88px;border-radius:50%}
.mshots{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
@media (max-width:640px){.mshots{grid-template-columns:1fr}}
.mshots div{aspect-ratio:3/4;border:2px dashed var(--line);border-radius:18px;display:grid;place-items:center;color:var(--muted);font-size:15px;padding:16px;text-align:center}
.msmall{color:var(--muted);margin:0 0 12px}
.mplan{margin:0;padding-left:20px;color:var(--muted);display:flex;flex-direction:column;gap:6px}
.mtable{border-collapse:collapse;width:100%;max-width:720px}
.mtable th,.mtable td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.mtable th{width:8em;color:var(--muted);font-weight:500}
.note{background:var(--surface);border:1px dashed var(--coral-strong);border-radius:14px;padding:14px 18px;font-size:15px;color:var(--muted);margin:0 0 8px}
@media (max-width:520px){.mhero{padding:20px 14px 28px}.mhero-text{padding:20px}}
@media (prefers-reduced-motion:no-preference){.btn,.nav a{transition:background .15s,filter .15s,box-shadow .15s}}