:root{
  --bg:#fbf7ee;
  --surface:#ffffff;
  --surface-2:#f6f1e6;
  --ink:#2c2a35;
  --ink-soft:#7c7889;
  --line:#ece5d8;
  --primary:#5b9bd8;
  --primary-ink:#ffffff;
  --primary-soft:#e6f2fb;
  --accent:#ef8c6c;
  --accent-soft:#fdeee7;
  --heart:#ea6b83;
  --bad:#dc2626;
  --balloon-1:#ef8c6c; /* coral */
  --balloon-2:#f2b84f; /* mustard */
  --balloon-3:#7fb99b; /* sage */
  --balloon-4:#5b9bd8; /* sky blue */
  --balloon-5:#e39ab0; /* blush */
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 1px 2px rgba(40,30,10,.05), 0 8px 24px rgba(40,30,10,.07);
  --shadow-lg:0 14px 44px rgba(30,20,10,.22);
  --safe-bottom:env(safe-area-inset-bottom, 0px);
  --sky-bg:
    radial-gradient(ellipse 200px 70px at 8% 6%, rgba(255,255,255,.85), transparent 70%),
    radial-gradient(ellipse 150px 55px at 88% 3%, rgba(255,255,255,.7), transparent 70%),
    radial-gradient(ellipse 170px 60px at 48% 12%, rgba(255,255,255,.6), transparent 70%),
    linear-gradient(180deg, #cfe8fb 0%, var(--bg) 340px);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#161a24;
    --surface:#20222b;
    --surface-2:#262a36;
    --ink:#f1efe9;
    --ink-soft:#9b98a8;
    --line:#31333f;
    --primary:#7fb3e8;
    --primary-ink:#0e1420;
    --primary-soft:#20304a;
    --accent:#f3a37f;
    --accent-soft:#3a2c1b;
    --heart:#f2879b;
    --balloon-1:#f3a37f;
    --balloon-2:#f2c56f;
    --balloon-3:#8fcbac;
    --balloon-4:#7fb3e8;
    --balloon-5:#eab0c1;
    --sky-bg:
      radial-gradient(2px 2px at 12% 8%, rgba(255,255,255,.9), transparent),
      radial-gradient(2px 2px at 28% 15%, rgba(255,255,255,.7), transparent),
      radial-gradient(1.5px 1.5px at 45% 6%, rgba(255,255,255,.8), transparent),
      radial-gradient(1.5px 1.5px at 62% 18%, rgba(255,255,255,.6), transparent),
      radial-gradient(2px 2px at 78% 9%, rgba(255,255,255,.85), transparent),
      radial-gradient(1.5px 1.5px at 92% 20%, rgba(255,255,255,.6), transparent),
      linear-gradient(180deg, #101526 0%, var(--bg) 340px);
  }
}
*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  font-family:'Nunito',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  background:var(--sky-bg) var(--bg);
  background-repeat:no-repeat;
  background-attachment:fixed;
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  padding-bottom:40px;
}
button{font-family:inherit;}
a{color:var(--primary);}
h1,h2,h3,h4{font-family:'Baloo 2',sans-serif;letter-spacing:-0.01em;}

/* ---------- decorative balloons ---------- */
.deco-balloon{display:block;overflow:visible;}
@keyframes floaty{
  0%,100%{transform:translateY(0) rotate(-3deg);}
  50%{transform:translateY(-9px) rotate(3deg);}
}
@media (prefers-reduced-motion: reduce){
  .deco-balloon{animation:none !important;}
}

/* ---------- top bar ---------- */
.topbar{
  position:sticky;top:0;z-index:30;
  background:linear-gradient(135deg,var(--primary),#3c6fa8);
  color:var(--primary-ink);
  padding:14px 18px;
  display:flex;align-items:center;justify-content:space-between;
  box-shadow:var(--shadow);
}
.topbar .brand{display:flex;align-items:center;gap:8px;font-family:'Baloo 2',sans-serif;font-weight:700;font-size:18px;}
.brand-balloon{width:22px;height:29px;color:var(--accent);flex-shrink:0;}
.sync-status{display:flex;align-items:center;gap:6px;font-size:12px;opacity:.9;}
.sync-dot{width:8px;height:8px;border-radius:50%;background:#bcd4f8;}
.sync-dot.saving{background:#fde68a;animation:pulse 1s infinite;}
.sync-dot.error{background:#fca5a5;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.35;}}

main{max-width:1080px;margin:0 auto;padding:16px;}

/* ---------- banner ---------- */
.banner{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,var(--primary-soft) 0%,var(--accent-soft) 100%);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 18px 16px;
  margin-bottom:16px;
  box-shadow:var(--shadow);
}
.banner-balloons{position:absolute;inset:0;pointer-events:none;}
.banner-balloons .deco-balloon{position:absolute;}
.bb1{color:var(--balloon-1);width:32px;height:42px;left:6%;top:-14px;animation:floaty 5s ease-in-out infinite;}
.bb2{color:var(--balloon-2);width:26px;height:34px;right:9%;top:-18px;animation:floaty 6s ease-in-out infinite .6s;}
.bb3{color:var(--balloon-3);width:20px;height:26px;right:26%;bottom:-16px;opacity:.75;animation:floaty 4.5s ease-in-out infinite 1.2s;}
.bb4{color:var(--balloon-4);width:18px;height:24px;left:22%;bottom:-18px;opacity:.65;animation:floaty 5.5s ease-in-out infinite .3s;}
.banner-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:10px;}
.banner-text{font-family:'Baloo 2',sans-serif;font-weight:700;font-size:16px;color:var(--ink);}
.banner-edit{background:var(--surface);border:1px solid var(--line);border-radius:50%;width:34px;height:34px;flex-shrink:0;cursor:pointer;font-size:14px;}

/* ---------- toolbar ---------- */
.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px;}
.btn{
  border:none;border-radius:999px;padding:11px 18px;font-size:14px;font-weight:700;
  cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:transform .1s, opacity .15s;
  font-family:'Nunito',sans-serif;
}
.btn:active{transform:scale(.97);}
.btn.primary{background:var(--primary);color:var(--primary-ink);}
.btn.accent{background:var(--accent);color:#fff;}
.btn.ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line);}
.btn.danger{background:transparent;color:var(--bad);border:1px solid #f3c9c9;}
.btn.small{padding:7px 12px;font-size:12.5px;}

/* ---------- gallery grid ---------- */
.gallery{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;
}
.photo-card{
  position:relative;aspect-ratio:1/1;border-radius:var(--radius-sm);overflow:hidden;
  background:var(--surface-2);cursor:pointer;box-shadow:var(--shadow);border:1px solid var(--line);
}
.photo-card img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .2s;}
.photo-card:active img{transform:scale(1.04);}
.photo-card .overlay{
  position:absolute;left:0;right:0;bottom:0;
  background:linear-gradient(to top, rgba(0,0,0,.55), transparent);
  color:#fff;padding:16px 8px 6px;font-size:11.5px;
  display:flex;align-items:center;gap:10px;
}
.photo-card .overlay span{display:flex;align-items:center;gap:3px;}
.empty-hint{
  display:flex;flex-direction:column;align-items:center;
  text-align:center;color:var(--ink-soft);padding:50px 10px 60px;font-size:15px;font-family:'Baloo 2',sans-serif;
}
.empty-balloon{width:66px;height:86px;color:var(--balloon-4);margin-bottom:12px;animation:floaty 5s ease-in-out infinite;}

/* ---------- drag & drop overlay ---------- */
.drop-overlay{
  position:fixed;inset:0;z-index:80;background:rgba(91,155,216,.18);backdrop-filter:blur(2px);
  display:none;align-items:center;justify-content:center;
  border:4px dashed var(--primary);
}
.drop-overlay.active{display:flex;}
.drop-card{
  background:var(--surface);padding:24px 32px;border-radius:var(--radius);box-shadow:var(--shadow-lg);
  font-family:'Baloo 2',sans-serif;font-weight:700;font-size:18px;color:var(--primary);
}

/* ---------- bottom sheet (shared: upload / info) ---------- */
.sheet-backdrop{
  position:fixed;inset:0;background:rgba(20,15,10,.45);z-index:60;
  display:none;align-items:flex-end;justify-content:center;
}
.sheet-backdrop.active{display:flex;}
.sheet{
  background:var(--surface);width:100%;max-width:480px;max-height:92vh;overflow-y:auto;
  border-radius:20px 20px 0 0;padding:14px 20px calc(24px + var(--safe-bottom));
  box-shadow:var(--shadow-lg);animation:slideup .22s ease;
}
@media (min-width:640px){
  .sheet-backdrop{align-items:center;}
  .sheet{border-radius:20px;max-height:88vh;}
}
@keyframes slideup{from{transform:translateY(30px);opacity:.4;}to{transform:none;opacity:1;}}
.sheet-handle{width:40px;height:4px;background:var(--line);border-radius:4px;margin:0 auto 12px;}
.sheet-header{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:8px;}
.sheet-header h3{margin:0;font-size:18px;}
.sheet-close{background:var(--surface-2);border:none;border-radius:50%;width:32px;height:32px;font-size:16px;cursor:pointer;flex-shrink:0;}
.sheet-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px;}
.sheet-actions .btn{width:100%;justify-content:center;}

.field-row{margin:12px 0;}
.field-row label{font-size:12.5px;color:var(--ink-soft);display:block;margin-bottom:4px;font-weight:700;}
.field-row input[type=text],.field-row input[type=date]{
  width:100%;padding:11px 13px;border-radius:10px;border:1px solid var(--line);background:var(--surface-2);
  font-size:15px;color:var(--ink);font-family:'Nunito',sans-serif;
}

/* ---------- lightbox ---------- */
.lightbox-backdrop{
  position:fixed;inset:0;background:rgba(10,8,6,.92);z-index:70;
  display:none;
}
.lightbox-backdrop.active{display:block;}
.lightbox{position:relative;width:100%;height:100%;display:flex;flex-direction:column;}
.lb-close{
  position:absolute;top:12px;right:12px;z-index:5;background:rgba(255,255,255,.15);color:#fff;border:none;
  border-radius:50%;width:38px;height:38px;font-size:17px;cursor:pointer;
}
.lb-nav{
  position:absolute;top:50%;transform:translateY(-50%);z-index:5;background:rgba(255,255,255,.15);color:#fff;
  border:none;border-radius:50%;width:44px;height:44px;font-size:24px;cursor:pointer;display:flex;
  align-items:center;justify-content:center;
}
.lb-prev{left:10px;}
.lb-next{right:10px;}
.lb-image-wrap{flex:1;display:flex;align-items:center;justify-content:center;min-height:0;padding:50px 60px 10px;}
.lb-image-wrap img{max-width:100%;max-height:100%;object-fit:contain;border-radius:8px;}
.lb-panel{
  background:var(--surface);color:var(--ink);border-radius:20px 20px 0 0;padding:16px 18px calc(20px + var(--safe-bottom));
  max-height:46vh;overflow-y:auto;
}
.lb-meta{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:8px;}
.lb-meta-text .by{font-weight:800;font-size:14.5px;}
.lb-meta-text .when{font-size:12px;color:var(--ink-soft);}
.lb-caption{font-size:14px;margin:6px 0 12px;}
.lb-actions{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.heart-btn{
  background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:8px 14px;
  font-size:14px;font-weight:700;cursor:pointer;display:flex;align-items:center;gap:6px;color:var(--ink);
}
.heart-btn.liked{background:#fde3e9;color:var(--heart);border-color:#f7c6d2;}
.comments{border-top:1px solid var(--line);padding-top:10px;}
.comment{display:flex;justify-content:space-between;gap:8px;padding:7px 0;font-size:13.5px;}
.comment .who{font-weight:700;margin-right:5px;}
.comment .del{background:none;border:none;color:#c7c9d1;cursor:pointer;font-size:12px;flex-shrink:0;}
.comment-form{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap;}
.comment-form input[type=text]{
  border:1px solid var(--line);border-radius:10px;padding:9px 11px;font-size:13.5px;background:var(--surface-2);
  color:var(--ink);font-family:'Nunito',sans-serif;
}
.comment-form .cname{flex:0 0 110px;}
.comment-form .ctext{flex:1;min-width:120px;}
.comment-form button{flex-shrink:0;}
.lb-danger-row{margin-top:14px;text-align:right;}

/* ---------- password gate ---------- */
.gate{
  position:fixed;inset:0;background:var(--sky-bg) var(--bg);background-repeat:no-repeat;z-index:100;
  display:flex;align-items:center;justify-content:center;padding:20px;
}
.gate-card{
  background:var(--surface);border-radius:var(--radius);padding:26px 26px 30px;max-width:340px;width:100%;
  box-shadow:var(--shadow-lg);text-align:center;
}
.gate-balloons{position:relative;height:92px;margin-bottom:4px;display:flex;align-items:flex-end;justify-content:center;gap:12px;}
.gb1{color:var(--balloon-1);width:44px;height:58px;animation:floaty 5s ease-in-out infinite;}
.gb2{color:var(--balloon-4);width:58px;height:76px;margin-bottom:8px;animation:floaty 6s ease-in-out infinite .4s;}
.gb3{color:var(--balloon-2);width:38px;height:50px;animation:floaty 4.5s ease-in-out infinite .8s;}
.gate-card h2{margin:0 0 4px;}
.gate-card p{color:var(--ink-soft);font-size:13.5px;margin:0 0 18px;}
.gate-card input{
  width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--line);background:var(--surface-2);
  font-size:15px;text-align:center;margin-bottom:12px;font-family:'Nunito',sans-serif;
}
.gate-card .btn{width:100%;justify-content:center;padding:12px;}
.gate-error{color:var(--bad);font-size:12.5px;margin-top:10px;min-height:16px;}

.toast{
  position:fixed;left:50%;bottom:24px;transform:translateX(-50%);
  background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:999px;font-size:13px;
  box-shadow:var(--shadow-lg);z-index:90;opacity:0;pointer-events:none;transition:opacity .2s, transform .2s;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(-4px);}