:root{
  --bg:#eef0f6;
  --app:#f6f7fb;
  --surface:#ffffff;
  --text:#14161f;
  --muted:#6b7280;
  --line:#e8eaf1;
  --accent:#4f46e5;
  --accent-2:#10b981;
  --accent-soft:#eef0ff;
  --shadow:0 1px 2px rgba(16,24,40,.04);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(900px 500px at 15% 0%, #e3e8ff 0%, transparent 60%),
    radial-gradient(700px 500px at 90% 100%, #dcfce7 0%, transparent 55%),
    var(--bg);
  -webkit-font-smoothing:antialiased;
}
.app{
  position:relative;
  width:100%;
  max-width:440px;
  height:100dvh;
  margin:0 auto;
  background:var(--app);
  display:flex;
  flex-direction:column;
  overflow:hidden;
}
@media (min-width:560px){
  body{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:28px}
  .app{
    height:min(880px,calc(100vh - 56px));
    border-radius:34px;
    border:1px solid #fff;
    box-shadow:0 40px 80px -30px rgba(23,28,60,.35), 0 0 0 1px rgba(20,22,31,.04);
  }
}

svg{display:block}
button{font:inherit;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}

/* ---------- top bar ---------- */
.topbar{
  position:relative;
  z-index:20;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:16px 18px 14px;
  background:rgba(246,247,251,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
}
.brand{
  display:flex;align-items:center;gap:9px;
  font-weight:800;font-size:17px;letter-spacing:-.02em;
}
.brand-mark{
  width:26px;height:26px;border-radius:9px;
  background:linear-gradient(135deg,#6366f1,#4338ca);
  display:grid;place-items:center;color:#fff;
  box-shadow:0 6px 14px rgba(79,70,229,.32);
}
.brand-mark svg{width:15px;height:15px}
.brand span i{color:var(--accent);font-style:normal}
.top-actions{display:flex;align-items:center;gap:8px}
.loc-pill{
  display:flex;align-items:center;gap:6px;
  border:1px solid var(--line);background:var(--surface);
  padding:8px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:#3d4252;
  box-shadow:var(--shadow);
}
.loc-pill svg{width:13px;height:13px;color:var(--accent)}
.icon-btn{
  position:relative;
  width:38px;height:38px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);
  display:grid;place-items:center;color:#3d4252;
  box-shadow:var(--shadow);
}
.icon-btn svg{width:18px;height:18px}
.badge{
  position:absolute;top:-4px;right:-4px;
  min-width:17px;height:17px;padding:0 4px;
  border-radius:999px;background:#ef4444;color:#fff;
  font-size:10px;font-weight:700;line-height:17px;text-align:center;
  border:2px solid var(--app);
}
.badge.hide{display:none}

/* ---------- scroll area ---------- */
.main{
  flex:1;
  overflow-y:auto;
  padding-bottom:118px;
  scrollbar-width:thin;
}
.main::-webkit-scrollbar{width:6px}
.main::-webkit-scrollbar-thumb{background:#d6dae6;border-radius:99px}

.hero{padding:8px 20px 6px}
.kicker{
  margin:0 0 6px;
  font-size:11.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:var(--muted);
}
.hero h1{
  margin:0;
  font-size:27px;line-height:1.15;letter-spacing:-.035em;font-weight:800;
}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p{margin:8px 0 0;font-size:13.5px;color:var(--muted);line-height:1.5;max-width:34ch}

/* ---------- chips ---------- */
.chips{
  display:flex;gap:8px;
  overflow-x:auto;
  padding:18px 18px 2px;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  border:1px solid var(--line);
  background:var(--surface);
  color:#4b5063;
  padding:8px 14px;border-radius:999px;
  font-size:12.8px;font-weight:600;
  transition:.18s ease;
  box-shadow:var(--shadow);
}
.chip:hover{border-color:#d5d9e6}
.chip.on{
  background:var(--accent);border-color:var(--accent);color:#fff;
  box-shadow:0 8px 18px -6px rgba(79,70,229,.55);
}

/* ---------- controls ---------- */
.controls{
  display:flex;align-items:center;gap:9px;
  padding:12px 18px 4px;
}
.range-wrap{
  flex:1;min-width:0;
  display:flex;align-items:center;gap:9px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:14px;padding:9px 12px;
  box-shadow:var(--shadow);
}
.range-wrap svg{width:15px;height:15px;color:var(--accent);flex:0 0 auto}
.range-wrap input[type=range]{
  flex:1;min-width:0;accent-color:var(--accent);height:4px;
}
.km{
  font-size:12px;font-weight:700;color:var(--accent);
  min-width:42px;text-align:right;font-variant-numeric:tabular-nums;
}
.seg{
  display:flex;background:var(--surface);border:1px solid var(--line);
  border-radius:14px;padding:3px;box-shadow:var(--shadow);
  flex:0 0 auto;
}
.seg button{
  border:0;background:transparent;color:var(--muted);
  padding:7px 9px;border-radius:10px;
  font-size:11.5px;font-weight:700;white-space:nowrap;
  transition:.15s;
}
.seg button.on{background:var(--accent-soft);color:var(--accent)}

/* ---------- feed ---------- */
.list-head{
  display:flex;align-items:baseline;justify-content:space-between;
  padding:18px 20px 10px;
}
.list-head h2{margin:0;font-size:15px;font-weight:800;letter-spacing:-.01em}
.list-head span{font-size:12px;color:var(--muted);font-weight:600}

.feed{display:flex;flex-direction:column;gap:12px;padding:0 16px}

.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:20px;
  padding:14px;
  box-shadow:var(--shadow);
  transition:border-color .2s;
  animation:rise .4s cubic-bezier(.32,.72,0,1) both;
}
.card:hover{border-color:#dfe3ee}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

.card-top{display:flex;gap:12px;align-items:flex-start}
.thumb{
  flex:0 0 auto;
  width:54px;height:54px;border-radius:16px;
  display:grid;place-items:center;color:#fff;
  background-size:cover;background-position:center;
  box-shadow:inset 0 -8px 18px rgba(0,0,0,.12);
}
.thumb svg{width:24px;height:24px}
.card-head{flex:1;min-width:0}
.cat{
  display:inline-block;
  font-size:10px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  color:var(--accent);background:var(--accent-soft);
  padding:2px 7px;border-radius:6px;margin-bottom:5px;
}
.card-head h3{
  margin:0;
  font-size:15.5px;font-weight:750;letter-spacing:-.015em;line-height:1.25;
}
.meta{
  display:flex;align-items:center;gap:5px;
  margin-top:5px;font-size:12px;color:var(--muted);font-weight:550;
}
.meta svg{width:12px;height:12px;flex:0 0 auto}
.meta i{font-style:normal;opacity:.5}

.tags{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0 0}
.tags span{
  font-size:11px;font-weight:600;color:#5c6277;
  background:#f4f5fa;border:1px solid #edeff6;
  padding:4px 9px;border-radius:999px;
}

.card-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:12px;padding-top:11px;border-top:1px solid #f2f3f8;
}
.host{display:flex;align-items:center;gap:7px;font-size:12px;font-weight:600;color:#5c6277;min-width:0}
.host span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.avatar{
  flex:0 0 auto;
  width:22px;height:22px;border-radius:50%;
  background:linear-gradient(135deg,#e0e5ff,#c7cdfd);
  color:#4338ca;font-size:10.5px;font-weight:800;
  display:grid;place-items:center;
}
.actions{display:flex;align-items:center;gap:7px}
.interest,.rsvp{
  display:flex;align-items:center;gap:6px;
  border:1px solid var(--line);background:#fff;
  padding:7px 12px;border-radius:999px;
  font-size:12px;font-weight:700;color:#5c6277;
  transition:.18s;
}
.interest svg,.rsvp svg{width:14px;height:14px}
.interest:hover,.rsvp:hover{border-color:#cfd4e3}
.interest.on{
  background:var(--accent-soft);border-color:#d5d8ff;color:var(--accent);
}
.rsvp.on{
  background:#e9f9f0;border-color:#c7f0da;color:#0f9d63;
}

.empty{
  text-align:center;padding:46px 26px;color:var(--muted);
  border:1px dashed #d9dceb;border-radius:20px;background:#fff;
}
.empty svg{width:34px;height:34px;margin:0 auto 12px;color:#a9afc4}
.empty h3{margin:0 0 6px;font-size:14.5px;color:var(--text)}
.empty p{margin:0 0 14px;font-size:12.5px;line-height:1.5}
.empty button{
  border:0;background:var(--accent);color:#fff;
  padding:9px 16px;border-radius:999px;font-size:12.5px;font-weight:700;
}

/* ---------- bottom nav ---------- */
.nav{
  position:absolute;left:0;right:0;bottom:0;z-index:30;
  display:flex;align-items:center;justify-content:space-around;
  padding:10px 26px calc(12px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
}
.nav-btn{
  display:flex;flex-direction:column;align-items:center;gap:3px;
  border:0;background:transparent;color:var(--muted);
  font-size:10.5px;font-weight:700;letter-spacing:.01em;
  padding:4px 10px;
}
.nav-btn svg{width:21px;height:21px}
.nav-btn.on{color:var(--accent)}
.nav-post{
  width:54px;height:54px;border-radius:18px;
  border:0;
  background:linear-gradient(135deg,#6366f1,#4338ca);
  color:#fff;display:grid;place-items:center;
  box-shadow:0 12px 24px -6px rgba(79,70,229,.55);
  transform:translateY(-15px);
  transition:transform .2s;
}
.nav-post:hover{transform:translateY(-17px)}
.nav-post svg{width:23px;height:23px}

/* ---------- panels ---------- */
.panel{
  position:absolute;inset:0;z-index:50;
  background:var(--app);
  display:flex;flex-direction:column;
  transform:translateY(100%);
  visibility:hidden;
  transition:transform .34s cubic-bezier(.32,.72,0,1), visibility .34s;
}
.panel.open{transform:translateY(0);visibility:visible}
.panel-head{
  display:flex;align-items:center;gap:12px;
  padding:16px 16px 12px;
  background:rgba(246,247,251,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  flex:0 0 auto;
}
.panel-head h2{margin:0;font-size:17px;font-weight:800;letter-spacing:-.02em}
.panel-head .spacer{flex:1}
.panel-body{flex:1;overflow-y:auto;padding:14px 16px 40px}

.digest{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:12px 14px;margin-bottom:12px;
  font-size:12.5px;font-weight:700;color:#3d4252;
  box-shadow:var(--shadow);
}
.digest input{width:18px;height:18px;accent-color:var(--accent)}

.notif{
  display:flex;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:13px;margin-bottom:10px;
  box-shadow:var(--shadow);
}
.notif.unread{border-color:#dfe2ff;background:linear-gradient(180deg,#fff,#f8f9ff)}
.n-icon{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:#f1f2f7;color:#5c6277;
}
.n-icon svg{width:18px;height:18px}
.n-icon.major{background:#fff1e8;color:#ea580c}
.n-icon.info{background:#e8f4ff;color:#2563eb}
.n-icon.tip{background:#e9f9f0;color:#0f9d63}
.notif-body{flex:1;min-width:0}
.n-top{display:flex;align-items:center;gap:7px;margin-bottom:3px;flex-wrap:wrap}
.tagline{
  font-size:9.5px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;
  padding:2px 6px;border-radius:5px;
}
.tagline.major{background:#fff1e8;color:#ea580c}
.tagline.info{background:#e8f4ff;color:#2563eb}
.tagline.tip{background:#e9f9f0;color:#0f9d63}
.n-time{font-size:10.5px;color:#9aa0b2;font-weight:600;margin-left:auto}
.notif h4{margin:0 0 3px;font-size:13.5px;font-weight:700;line-height:1.3}
.notif p{margin:0;font-size:12px;color:var(--muted);line-height:1.45}
.n-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);flex:0 0 auto;margin-top:5px}
.n-dot.hide{visibility:hidden}
.mark-read{
  border:1px solid var(--line);background:#fff;color:#5c6277;
  padding:7px 11px;border-radius:10px;font-size:11.5px;font-weight:700;
  white-space:nowrap;
}

/* ---------- form ---------- */
.form{display:flex;flex-direction:column;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field > label,.label{
  font-size:11.5px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;
  color:#7a8095;
}
.field input,.field textarea,.field select{
  width:100%;
  border:1px solid var(--line);background:#fff;border-radius:12px;
  padding:11px 12px;font-size:13.5px;outline:none;
  transition:border-color .15s, box-shadow .15s;
  box-shadow:var(--shadow);
}
.field input[type=file]{padding:9px 10px;font-size:12.5px}
.field textarea{resize:vertical;min-height:84px}
.field input:focus,.field textarea:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(79,70,229,.12);
}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.picks{display:flex;flex-wrap:wrap;gap:7px}
.pick{
  border:1px solid var(--line);background:#fff;color:#5c6277;
  padding:8px 12px;border-radius:999px;font-size:12px;font-weight:600;
  transition:.15s;box-shadow:var(--shadow);
}
.pick.on{background:var(--accent);border-color:var(--accent);color:#fff}
.submit{
  margin-top:4px;
  border:0;border-radius:14px;
  background:linear-gradient(135deg,#6366f1,#4338ca);color:#fff;
  padding:14px;font-size:14px;font-weight:800;
  box-shadow:0 12px 24px -8px rgba(79,70,229,.6);
}
.submit:active{transform:scale(.99)}

/* ---------- toast ---------- */
.toast{
  position:absolute;left:50%;bottom:102px;z-index:60;
  transform:translate(-50%,14px);
  background:#14161f;color:#fff;
  padding:11px 17px;border-radius:12px;
  font-size:12.5px;font-weight:600;
  white-space:nowrap;opacity:0;pointer-events:none;
  transition:opacity .22s, transform .22s;
  box-shadow:0 14px 30px -8px rgba(20,22,31,.5);
}
.toast.show{opacity:1;transform:translate(-50%,0)}