:root{
  --red:#E11D2E;
  --red-dark:#A20E1E;
  --red-deep:#7D0E1A;
  --red-tint:#FDEBEC;
  --red-tint2:#FBD9DB;
  --black:#15120F;
  --grey:#6B6560;
  --grey-light:#9C9591;
  --line:#ECE7E5;
  --panel:#F7F4F3;
  --white:#FFFFFF;
  --radius:16px;
  --radius-sm:11px;
  --shadow:0 2px 10px rgba(21,18,15,0.06);
  --shadow-md:0 8px 24px rgba(21,18,15,0.10);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}
*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:#EDEAE8;
  color:var(--black);
  -webkit-font-smoothing:antialiased;
}
#frame{
  width:100%;max-width:430px;margin:0 auto;background:var(--white);
  position:relative;overflow:hidden;box-shadow:0 0 60px rgba(0,0,0,0.18);
  display:flex;flex-direction:column;min-width:0;
  height:100vh;height:100dvh;
}
@media(min-width:768px){
  body{display:flex;align-items:flex-start;justify-content:center;padding:28px 0;}
  #frame{height:844px;border-radius:36px;}
}

.screen{display:none;flex-direction:column;min-height:100%;flex:1;min-width:0;}
.screen.active{display:flex;}

/* ---------- Shared ---------- */
.topbar{
  display:flex;align-items:center;gap:10px;
  padding:calc(16px + var(--safe-top)) 20px 14px;
  position:sticky;top:0;background:var(--white);z-index:5;
  border-bottom:1px solid var(--line);
}
.logo-mark{width:24px;height:24px;flex:none;}
.brand{font-weight:800;font-size:17px;letter-spacing:-0.01em;}
.topbar .sub{margin-left:auto;font-size:13px;color:var(--grey);}
.content{padding:20px;flex:1;overflow-y:auto;min-width:0;}
h1.page-title{font-size:25px;font-weight:800;letter-spacing:-0.02em;margin:2px 0 4px;}
p.page-sub{color:var(--grey);font-size:14.5px;line-height:1.5;margin:0 0 22px;}

.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:700;color:var(--black);margin-bottom:7px;}
.field input, .field select, .field textarea{
  width:100%;padding:13px 14px;border:1.5px solid var(--line);border-radius:var(--radius-sm);
  font-size:15.5px;font-family:inherit;background:var(--white);color:var(--black);
}
.field input:focus, .field select:focus, .field textarea:focus{outline:none;border-color:var(--red);}
.field textarea{resize:vertical;min-height:70px;}
.hint{font-size:12.5px;color:var(--grey);margin-top:6px;}

.phone-input{display:flex;gap:8px;}
.phone-input .code{width:64px;flex:none;text-align:center;font-weight:700;background:var(--panel);}

.btn{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;padding:15px 18px;border-radius:12px;border:none;
  font-size:15.5px;font-weight:700;cursor:pointer;font-family:inherit;
  transition:transform .08s ease, box-shadow .15s ease;
}
.btn:active{transform:scale(0.98);}
.btn-primary, .btn-red{background:linear-gradient(180deg,var(--red),var(--red-dark));color:var(--white);box-shadow:0 6px 16px rgba(225,29,46,0.28);}
.btn-primary:disabled{background:#D8D3D0;color:#9C9591;cursor:not-allowed;box-shadow:none;}
.btn-outline{background:var(--white);color:var(--black);border:1.5px solid var(--line);}
.btn-ghost{background:transparent;color:var(--grey);font-weight:600;}
.btn-sm{padding:10px 14px;font-size:13px;width:auto;border-radius:9px;}

.banner{
  background:var(--red-tint);border:1px solid var(--red-tint2);color:var(--red-dark);
  padding:12px 14px;border-radius:12px;font-size:13.5px;line-height:1.5;margin-bottom:18px;
  display:flex;gap:10px;align-items:flex-start;
}
.banner b{color:var(--red-dark);}
.banner .dot{width:6px;height:6px;border-radius:50%;background:var(--red);margin-top:6px;flex:none;}

/* ---------- Splash ---------- */
#screen-splash{align-items:center;justify-content:center;text-align:center;background:radial-gradient(120% 100% at 50% 0%,#2A1315 0%, var(--black) 55%);color:var(--white);padding:40px;}
#screen-splash .drop{width:76px;height:76px;margin-bottom:24px;filter:drop-shadow(0 10px 24px rgba(225,29,46,0.5));}
#screen-splash h1{font-size:32px;font-weight:800;letter-spacing:-0.02em;margin:0 0 10px;}
#screen-splash p{color:#C9C4C0;font-size:15px;margin:0 0 40px;max-width:280px;line-height:1.55;}
#screen-splash .btn{max-width:260px;}

/* ---------- OTP ---------- */
.otp-row{display:flex;gap:9px;margin-bottom:6px;}
.otp-row input{
  width:100%;aspect-ratio:1;text-align:center;font-size:22px;font-weight:800;
  border:1.5px solid var(--line);border-radius:var(--radius-sm);padding:0;
}
.otp-row input:focus{border-color:var(--red);}

/* ---------- Blood group grid ---------- */
.bg-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:6px;}
.bg-chip{
  border:1.5px solid var(--line);border-radius:12px;padding:14px 4px;text-align:center;
  cursor:pointer;background:var(--white);
}
.bg-chip .g{font-size:17px;font-weight:800;}
.bg-chip.sel{border-color:var(--red);background:var(--red-tint);color:var(--red-dark);}

/* ---------- Permission cards ---------- */
.perm-card{
  border:1.5px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:14px;
  display:flex;gap:14px;align-items:flex-start;box-shadow:var(--shadow);
}
.perm-card .ic{
  width:42px;height:42px;border-radius:11px;background:var(--red-tint);color:var(--red);
  display:flex;align-items:center;justify-content:center;flex:none;font-size:20px;
}
.perm-card h3{margin:0 0 4px;font-size:15.5px;}
.perm-card p{margin:0 0 12px;font-size:13.5px;color:var(--grey);line-height:1.5;}
.perm-card .state{font-size:12.5px;font-weight:700;color:#1E7A44;display:none;}
.perm-card .state.show{display:inline-flex;align-items:center;gap:5px;}

/* ---------- Home ---------- */
.hero{
  background:linear-gradient(150deg,var(--red) 0%, var(--red-dark) 65%, var(--red-deep) 100%);
  border-radius:20px;padding:22px 20px;color:var(--white);margin-bottom:22px;
  box-shadow:0 12px 28px rgba(161,14,30,0.30);position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-30px;top:-30px;width:150px;height:150px;
  background:rgba(255,255,255,0.08);border-radius:50%;
}
.hero .greet{font-size:20px;font-weight:800;letter-spacing:-0.01em;margin-bottom:2px;position:relative;}
.hero .greet-sub{font-size:13px;color:rgba(255,255,255,0.82);margin-bottom:18px;position:relative;}
.hero-stats{display:flex;gap:10px;position:relative;}
.hero-stat{flex:1;background:rgba(255,255,255,0.14);border:1px solid rgba(255,255,255,0.18);border-radius:12px;padding:11px 10px;backdrop-filter:blur(2px);}
.hero-stat .n{font-size:19px;font-weight:800;line-height:1.1;}
.hero-stat .l{font-size:10.5px;color:rgba(255,255,255,0.85);margin-top:3px;font-weight:600;}

.search{
  display:flex;align-items:center;gap:8px;background:var(--panel);border-radius:12px;
  padding:12px 14px;margin-bottom:24px;color:var(--grey);font-size:14.5px;
}

.section-head{display:flex;align-items:center;margin-bottom:12px;}
.section-head h2{font-size:15.5px;font-weight:800;margin:0;}
.section-head .link{margin-left:auto;font-size:12.5px;font-weight:700;color:var(--red);cursor:pointer;}

.mini-scroll{display:flex;gap:12px;overflow-x:auto;margin:0 -20px 26px;padding:0 20px 4px;-webkit-overflow-scrolling:touch;}
.mini-scroll::-webkit-scrollbar{display:none;}
.mini-card{
  flex:none;width:238px;border-radius:16px;padding:15px;cursor:pointer;
  background:var(--white);border:1.5px solid var(--line);box-shadow:var(--shadow);
}
.mini-card:active{transform:scale(0.98);}
.mini-top{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.mini-bg{width:34px;height:34px;border-radius:9px;background:var(--red);color:var(--white);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:12px;flex:none;}
.mini-name{font-weight:700;font-size:14px;}
.mini-badge{margin-left:auto;font-size:10px;font-weight:800;padding:3px 8px;border-radius:20px;background:#E9F7EE;color:#1E7A44;flex:none;}
.mini-badge.closed{background:var(--panel);color:var(--grey);}
.mini-meta{font-size:12px;color:var(--grey);line-height:1.5;}

.group-section{margin-bottom:10px;border:1.5px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.group-head{display:flex;align-items:center;gap:12px;padding:15px 16px;cursor:pointer;background:var(--white);}
.group-badge{
  width:42px;height:42px;border-radius:11px;background:linear-gradient(160deg,var(--red),var(--red-dark));
  color:var(--white);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13.5px;flex:none;
  box-shadow:0 4px 10px rgba(225,29,46,0.28);
}
.group-badge.empty{background:var(--panel);color:var(--grey-light);box-shadow:none;}
.group-head .name{font-weight:700;font-size:15px;}
.group-head .count{font-size:12.5px;color:var(--grey);margin-top:1px;}
.group-head .chev{margin-left:auto;color:var(--grey-light);font-size:13px;transition:transform .15s;}
.group-section.open .chev{transform:rotate(90deg);}
.group-body{display:none;border-top:1px solid var(--line);background:var(--panel);}
.group-section.open .group-body{display:block;}

.contact-row{display:flex;align-items:center;gap:12px;padding:13px 16px;border-top:1px solid var(--line);}
.contact-row:first-child{border-top:none;}
.avatar{
  width:36px;height:36px;border-radius:50%;background:var(--white);color:var(--red-dark);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;flex:none;
  border:1.5px solid var(--red-tint2);
}
.c-name{font-weight:600;font-size:14.5px;}
.c-phone{font-size:12.5px;color:var(--grey);}
.contact-row .btn-sm{margin-left:auto;flex:none;}

.invite-row{display:flex;align-items:center;gap:12px;padding:13px 16px;border-top:1px solid var(--line);}
.invite-row:first-child{border-top:none;}
.invite-row .btn-sm{margin-left:auto;flex:none;background:var(--white);color:var(--black);border:1.5px solid var(--line);}

.empty-state{text-align:center;padding:50px 20px;color:var(--grey);}
.empty-state .ic{font-size:34px;margin-bottom:12px;}
.empty-state h3{color:var(--black);margin:0 0 6px;font-size:15.5px;}
.empty-state p{margin:0 0 18px;font-size:13.5px;line-height:1.5;}
.empty-state .btn{max-width:220px;margin:0 auto;}

/* ---------- Bottom nav ---------- */
.bottom-nav{
  position:sticky;bottom:0;left:0;right:0;background:rgba(255,255,255,0.96);backdrop-filter:blur(8px);
  border-top:1px solid var(--line);display:flex;align-items:center;
  padding:8px 6px calc(8px + var(--safe-bottom));z-index:6;
}
.nav-btn{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;
  background:none;border:none;color:var(--grey-light);font-size:10.5px;font-weight:700;
  padding:6px 0;cursor:pointer;font-family:inherit;
}
.nav-btn.active{color:var(--red);}
.nav-btn .ic{font-size:19px;}
.fab{
  width:56px;height:56px;border-radius:50%;background:linear-gradient(160deg,var(--red),var(--red-dark));
  color:var(--white);display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:300;
  border:none;cursor:pointer;margin-top:-32px;box-shadow:0 8px 20px rgba(225,29,46,0.45);flex:none;
}

/* ---------- Requests screen ---------- */
.tabs{display:flex;gap:6px;background:var(--panel);border-radius:11px;padding:4px;margin-bottom:20px;}
.tab{flex:1;text-align:center;padding:9px 0;border-radius:8px;font-size:13.5px;font-weight:700;cursor:pointer;color:var(--grey);}
.tab.active{background:var(--white);color:var(--black);box-shadow:var(--shadow);}

.req-card{border:1.5px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:14px;box-shadow:var(--shadow);}
.req-top{display:flex;align-items:flex-start;gap:12px;margin-bottom:12px;}
.req-bg{
  width:44px;height:44px;border-radius:11px;background:linear-gradient(160deg,var(--red),var(--red-dark));
  color:var(--white);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;flex:none;
}
.req-name{font-weight:700;font-size:15px;}
.req-meta{font-size:12.5px;color:var(--grey);margin-top:2px;}
.req-badge{margin-left:auto;font-size:11px;font-weight:700;padding:4px 9px;border-radius:20px;flex:none;}
.req-badge.active{background:#E9F7EE;color:#1E7A44;}
.req-badge.closed{background:var(--panel);color:var(--grey);}
.req-line{display:flex;gap:8px;font-size:13.5px;margin-bottom:6px;color:var(--black);}
.req-line .k{color:var(--grey);min-width:64px;flex:none;}
.req-actions{display:flex;gap:10px;margin-top:14px;}
.req-actions .btn{padding:12px;}
.demo-tag{font-size:10.5px;font-weight:700;color:var(--grey);background:var(--panel);padding:2px 7px;border-radius:6px;margin-left:8px;}
.responded-tag{font-size:12.5px;font-weight:700;margin-top:14px;display:flex;align-items:center;gap:6px;}
.responded-tag.yes{color:#1E7A44;}
.responded-tag.no{color:var(--grey);}
.loc-tag{display:inline-flex;align-items:center;gap:4px;font-size:11.5px;color:#1E7A44;font-weight:700;margin-left:8px;}

/* ---------- Sheets ---------- */
.sheet-backdrop{position:absolute;inset:0;background:rgba(21,18,15,0.5);z-index:20;display:none;}
.sheet-backdrop.show{display:block;}
.sheet{
  position:absolute;left:0;right:0;bottom:0;background:var(--white);
  border-radius:22px 22px 0 0;max-height:90%;overflow-y:auto;
  transform:translateY(100%);transition:transform .22s ease;padding-bottom:calc(20px + var(--safe-bottom));
}
.sheet-backdrop.show .sheet{transform:translateY(0);}
.sheet-head{display:flex;align-items:center;padding:18px 20px 6px;}
.sheet-head h2{font-size:17px;margin:0;font-weight:800;}
.sheet-head .close{margin-left:auto;background:var(--panel);border:none;width:30px;height:30px;border-radius:50%;font-size:15px;cursor:pointer;color:var(--grey);}
.sheet-body{padding:14px 20px 6px;}

.toast{
  position:absolute;left:20px;right:20px;bottom:96px;background:var(--black);color:var(--white);
  padding:13px 16px;border-radius:11px;font-size:13.5px;z-index:30;
  opacity:0;transform:translateY(10px);transition:all .2s ease;pointer-events:none;
  display:flex;gap:10px;align-items:center;box-shadow:0 10px 30px rgba(0,0,0,0.3);
}
.toast.show{opacity:1;transform:translateY(0);}

.valid-box{background:var(--panel);border-radius:11px;padding:13px 14px;font-size:13.5px;margin-bottom:18px;display:flex;gap:10px;align-items:center;}
.valid-box b{font-weight:700;}

.loc-btn{
  display:flex;align-items:center;justify-content:center;gap:8px;width:100%;
  padding:13px;border-radius:var(--radius-sm);border:1.5px dashed var(--line);
  background:var(--panel);color:var(--black);font-weight:700;font-size:13.5px;cursor:pointer;font-family:inherit;
}
.loc-btn.got{border-style:solid;border-color:#B9E4C6;background:#E9F7EE;color:#1E7A44;}
.loc-confirm{font-size:12px;color:#1E7A44;margin-top:7px;font-weight:600;}