/* Layout: a phone-width app shell (app bar, scrolling content, pinned action bar), centred on a soft blue backdrop on larger screens.
   Palette: trust blue primary, aqua sparkle accent, navy ink; system fonts so it reads like a native iOS/Android app. */
:root{
  --primary:#1b5fe0; --primary-press:#164fbd; --primary-ink:#ffffff;
  --hero-a:#1b5fe0; --hero-b:#2f8cff; --hero-c:#39c6f0;
  --aqua:#39c6f0;
  --bg:#eef3fb; --surface:#ffffff; --surface-2:#f5f8fd;
  --ink:#0b1f3f; --ink-2:#51627d; --sep:#e1e8f3;
  --icon-bg:#e7efff; --icon-ink:#1b5fe0;
  --backdrop-a:#dfe9fb; --backdrop-b:#f4f8fe;
  --shadow:0 1px 2px rgba(11,31,63,.06),0 8px 24px rgba(11,31,63,.06);
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI Variable Text","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-display:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI Variable Display","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --r-card:18px; --r-btn:14px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --primary:#3d7bff; --primary-press:#2f69e6;
  --hero-a:#123a8f; --hero-b:#1b5fe0; --hero-c:#1f9cc9;
  --aqua:#5fd4f5;
  --bg:#06122a; --surface:#0e1d3b; --surface-2:#13254a;
  --ink:#eaf1ff; --ink-2:#9fb2d3; --sep:#1d3260;
  --icon-bg:#16305f; --icon-ink:#8fb5ff;
  --backdrop-a:#040c1d; --backdrop-b:#0a1a38;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.25);
  color-scheme:dark}}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;min-height:100%}
html{background:var(--bg)}
body{
  background:var(--bg);color:var(--ink);
  font:400 16px/1.45 var(--font);-webkit-font-smoothing:antialiased;
  overscroll-behavior-y:none;
}
.backdrop{display:none}

/* App shell */
.app{position:relative;min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;background:var(--bg)}
.appbar{
  position:sticky;top:0;z-index:5;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:calc(env(safe-area-inset-top,0px) + 12px) 18px 12px;
  background:color-mix(in srgb,var(--bg) 82%,transparent);
  -webkit-backdrop-filter:saturate(180%) blur(18px);backdrop-filter:saturate(180%) blur(18px);
  border-bottom:.5px solid color-mix(in srgb,var(--sep) 70%,transparent);
  -webkit-user-select:none;user-select:none;
}
.brand{display:flex;align-items:center;gap:10px;font:650 17px/1 var(--font-display);letter-spacing:-.01em}
.mark{width:32px;height:32px;flex:none}
.mark rect{fill:var(--primary)} .mark path{fill:#fff}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  font:600 12.5px/1 var(--font);color:var(--primary);
  background:var(--icon-bg);padding:7px 11px;border-radius:999px;white-space:nowrap;
}
.pulse{width:7px;height:7px;border-radius:50%;background:var(--aqua);box-shadow:0 0 0 0 var(--aqua);animation:pulse 2.4s ease-out infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--aqua) 60%,transparent)}70%,100%{box-shadow:0 0 0 7px transparent}}

.content{flex:1;display:flex;flex-direction:column;gap:26px;padding:16px 16px calc(96px + env(safe-area-inset-bottom,0px))}

/* Hero card */
.hero{
  position:relative;overflow:hidden;isolation:isolate;
  border-radius:24px;padding:30px 22px 28px;color:#fff;
  background:
    radial-gradient(120% 90% at 100% 0%,color-mix(in srgb,var(--hero-c) 75%,transparent) 0%,transparent 55%),
    linear-gradient(150deg,var(--hero-a) 0%,var(--hero-b) 100%);
  box-shadow:0 12px 30px -10px color-mix(in srgb,var(--hero-a) 55%,transparent);
  display:flex;flex-direction:column;gap:10px;
}
.hero::after{ /* a soft glint that sweeps across, like light over a just-wiped surface */
  content:"";position:absolute;inset:-40% -60%;z-index:-1;
  background:linear-gradient(105deg,transparent 38%,rgba(255,255,255,.18) 50%,transparent 62%);
  transform:translateX(-60%);animation:glint 6s cubic-bezier(.45,.05,.3,1) 1s infinite;
}
@keyframes glint{0%{transform:translateX(-60%)}35%,100%{transform:translateX(60%)}}
.kicker{margin:0;font:600 12.5px/1 var(--font);letter-spacing:.08em;text-transform:uppercase;opacity:.85}
.hero h1{margin:0;font:750 clamp(34px,9vw,44px)/1.05 var(--font-display);letter-spacing:-.025em;text-wrap:balance}
.sub{margin:0;font-size:16.5px;line-height:1.45;opacity:.92;max-width:32ch}
.spark{position:absolute;width:14px;height:14px;background:#fff;opacity:.9;
  clip-path:polygon(50% 0,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0 50%,39% 39%);animation:twinkle 3.2s ease-in-out infinite}
.s1{top:22px;right:26px;width:18px;height:18px}
.s2{top:58px;right:62px;width:9px;height:9px;animation-delay:.9s}
.s3{top:96px;right:30px;width:11px;height:11px;animation-delay:1.8s}
@keyframes twinkle{0%,100%{transform:scale(.6) rotate(0);opacity:.35}50%{transform:scale(1) rotate(45deg);opacity:.95}}

/* Grouped lists, iOS settings style */
.group{display:flex;flex-direction:column;gap:8px}
.group-title{margin:0 4px;font:600 13px/1.2 var(--font);text-transform:uppercase;letter-spacing:.05em;color:var(--ink-2)}
.list{list-style:none;margin:0;padding:0;background:var(--surface);border-radius:var(--r-card);box-shadow:var(--shadow);overflow:hidden}
.list li{display:flex;align-items:center;gap:14px;padding:13px 16px;position:relative}
.list li+li::before{content:"";position:absolute;top:0;left:66px;right:0;border-top:.5px solid var(--sep)}
.ico{flex:none;width:36px;height:36px;border-radius:10px;background:var(--icon-bg);display:grid;place-items:center}
.ico svg{width:20px;height:20px;fill:none;stroke:var(--icon-ink);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.txt{display:flex;flex-direction:column;gap:2px;min-width:0}
.txt b{font-weight:600;font-size:16px}
.txt small{font-size:14px;color:var(--ink-2);line-height:1.35}

.card{background:var(--surface);border-radius:var(--r-card);box-shadow:var(--shadow);padding:16px}
.contact{display:flex;flex-direction:column;gap:12px}
.contact p{margin:0;color:var(--ink-2);font-size:15px}
.addr{display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--surface-2);border-radius:12px;padding:6px 6px 6px 14px}
.email{font-weight:600;font-size:16px;overflow-wrap:anywhere;-webkit-user-select:all;user-select:all}
.copy{
  flex:none;border:0;cursor:pointer;font:600 14px/1 var(--font);color:var(--primary);
  background:var(--icon-bg);padding:10px 14px;border-radius:10px;transition:transform .12s ease,opacity .12s ease;
}
.copy:active{transform:scale(.96);opacity:.8}

.foot{text-align:center;font-size:12.5px;color:var(--ink-2);padding-top:4px}

/* Pinned action bar */
.actionbar{
  position:fixed;left:0;right:0;bottom:0;z-index:6;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom,0px));
  background:color-mix(in srgb,var(--bg) 82%,transparent);
  -webkit-backdrop-filter:saturate(180%) blur(18px);backdrop-filter:saturate(180%) blur(18px);
  border-top:.5px solid color-mix(in srgb,var(--sep) 70%,transparent);
}
.btn{
  display:flex;align-items:center;justify-content:center;gap:9px;width:100%;
  min-height:52px;border-radius:var(--r-btn);text-decoration:none;
  background:var(--primary);color:var(--primary-ink);font:600 17px/1 var(--font);
  box-shadow:0 6px 16px -6px color-mix(in srgb,var(--primary) 70%,transparent);
  transition:transform .12s ease,background-color .12s ease;-webkit-user-select:none;user-select:none;
}
.btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.btn:active{transform:scale(.98);background:var(--primary-press)}

.toast{
  position:fixed;left:50%;bottom:calc(84px + env(safe-area-inset-bottom,0px));z-index:9;
  transform:translate(-50%,12px);opacity:0;pointer-events:none;
  background:var(--ink);color:var(--bg);font:600 14px/1 var(--font);padding:12px 16px;border-radius:999px;
  transition:opacity .2s ease,transform .2s ease;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

:focus-visible{outline:3px solid color-mix(in srgb,var(--primary) 55%,transparent);outline-offset:2px}

/* Larger screens: the app sits in a centred phone-width column on a soft backdrop */
@media (min-width:640px){
  html,body{background:linear-gradient(160deg,var(--backdrop-a),var(--backdrop-b)) fixed;background-color:var(--backdrop-b)}
  .backdrop{display:block;position:fixed;inset:0;z-index:0;
    background:radial-gradient(40% 40% at 20% 20%,color-mix(in srgb,var(--primary) 14%,transparent),transparent 70%),
               radial-gradient(35% 35% at 85% 80%,color-mix(in srgb,var(--aqua) 16%,transparent),transparent 70%)}
  .app{width:430px;margin:32px auto;min-height:calc(100dvh - 64px);border-radius:34px;overflow:hidden;
    box-shadow:0 30px 80px -20px rgba(11,31,63,.35),0 0 0 1px color-mix(in srgb,var(--sep) 80%,transparent);z-index:1}
  .actionbar{position:sticky;left:auto;right:auto}
  .content{padding-bottom:20px}
  .toast{bottom:120px}
}
@media (prefers-reduced-motion:reduce){
  .hero::after,.spark,.pulse{animation:none}
}