:root{
  --bg:#fff6f2; --frame:#fff; --frame-border:transparent;
  --caption:#7a2540; --meta:#b1857f; --brand:#b23a5b; --fab:#f97316; --back:#fff; --sign:#9a5a6e;
  --edit-bg:#fbeadf; --edit-fg:#c9612e; --sheet:#fffaf6; --input-bg:#fff; --input-border:#eccdbd;
  --input-text:#5c3a36; --label:#9a6f68; --badge-bg:#fde3ea; --badge-fg:#b23a5b; --grab:#eccdbd;
  --photo-fallback:#f3ddc9; --card-shadow:rgba(120,60,40,.18); --divider:#f1ddd3; --pick-text:#c89a86;
  --brand-fg:#fff; --fab-glass:rgba(178,58,91,.62); --fab-icon:#fff; --fab-border:rgba(255,255,255,.42);
  --jump-glass:rgba(255,250,247,.55); --jump-border:rgba(178,58,91,.22);
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#181311; --frame:#262019; --frame-border:#352b25;
    --caption:#f1d3c2; --meta:#b39a8d; --brand:#ef9aab; --fab:#f97316; --back:#262019; --sign:#e0a3b0;
    --edit-bg:#3a2c24; --edit-fg:#f3a86e; --sheet:#201913; --input-bg:#2a221d; --input-border:#3d322b;
    --input-text:#f1ddcd; --label:#b89e90; --badge-bg:#3a2230; --badge-fg:#f0a0b4; --grab:#4a3a31;
    --photo-fallback:#3a2f28; --card-shadow:rgba(0,0,0,.55); --divider:#2c2420; --pick-text:#8a7064;
    --brand-fg:#2c121b; --fab-glass:rgba(239,154,171,.42); --fab-icon:#fff; --fab-border:rgba(255,255,255,.22);
    --jump-glass:rgba(38,32,25,.5); --jump-border:rgba(255,255,255,.18);
  }
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);font-family:'Quicksand',system-ui,sans-serif;color:var(--caption);-webkit-tap-highlight-color:transparent}
.topbar{position:sticky;top:0;z-index:20;height:58px;display:flex;align-items:center;justify-content:center;gap:8px;background:var(--bg);border-bottom:1px solid var(--divider)}
.brand{font-family:'Caveat',cursive;font-size:27px;font-weight:700;color:var(--brand);display:flex;align-items:center;gap:8px}
.brand i{font-size:18px}
.feed{max-width:480px;margin:0 auto;padding:22px 0 120px}
.card{width:300px;margin:0 auto 30px;perspective:1100px;cursor:pointer}
.card:nth-child(odd){transform:rotate(-1.3deg)}
.card:nth-child(even){transform:rotate(1.1deg)}
.card-inner{position:relative;width:100%;transition:transform .6s cubic-bezier(.2,.7,.2,1);transform-style:preserve-3d}
.card.is-flipped .card-inner{transform:rotateY(180deg)}
.face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;background:var(--frame);border:1px solid var(--frame-border);border-radius:5px;box-shadow:0 8px 20px var(--card-shadow);padding:12px;overflow:hidden}
.face.front{position:relative}
.photo{width:100%;border-radius:3px;overflow:hidden;background:var(--photo-fallback);display:block;object-fit:cover}
.caption{font-family:'Caveat',cursive;font-size:24px;font-weight:600;color:var(--caption);line-height:1.1;margin:8px 3px 6px}
.meta{display:flex;gap:14px;align-items:center;padding:0 3px;color:var(--meta);font-size:12px;font-weight:500}
.meta i{font-size:14px;vertical-align:-2px;margin-right:4px}
.back{transform:rotateY(180deg);background:var(--back);display:flex;flex-direction:column;padding:18px}
.back .msg{font-family:'Caveat',cursive;font-size:21px;color:var(--caption);line-height:1.32;margin:0;flex:1}
.back .sign{font-family:'Caveat',cursive;font-size:20px;color:var(--sign);text-align:right;margin-top:8px;padding-left:46px}
.edit-btn{position:absolute;left:12px;bottom:12px;border:none;background:var(--edit-bg);color:var(--edit-fg);width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:16px}
.fab{position:fixed;right:18px;bottom:20px;z-index:30;width:58px;height:58px;border-radius:50%;background:var(--fab-glass);color:var(--fab-icon);border:1px solid var(--fab-border);backdrop-filter:blur(14px) saturate(160%);-webkit-backdrop-filter:blur(14px) saturate(160%);display:flex;align-items:center;justify-content:center;font-size:28px;cursor:pointer;box-shadow:0 6px 20px rgba(120,60,40,.22)}
.jump{position:fixed;left:18px;bottom:24px;z-index:30;width:46px;height:46px;border-radius:50%;background:var(--jump-glass);color:var(--brand);border:1px solid var(--jump-border);backdrop-filter:blur(14px) saturate(160%);-webkit-backdrop-filter:blur(14px) saturate(160%);display:flex;align-items:center;justify-content:center;font-size:22px;cursor:pointer;box-shadow:0 6px 16px var(--card-shadow)}
.scrim{position:fixed;inset:0;z-index:40;background:rgba(0,0,0,.5);opacity:0;pointer-events:none;transition:opacity .3s}
.scrim.open{opacity:1;pointer-events:auto}
.sheet{position:fixed;left:0;right:0;bottom:0;z-index:50;max-width:480px;margin:0 auto;background:var(--sheet);border-radius:22px 22px 0 0;padding:14px 18px 24px;transform:translateY(112%);transition:transform .38s cubic-bezier(.2,.7,.2,1);max-height:86vh;overflow-y:auto}
.sheet.open{transform:translateY(0)}
.grab{width:42px;height:5px;border-radius:3px;background:var(--grab);margin:0 auto 10px}
.sheet-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.sheet h3{font-family:'Caveat',cursive;font-size:26px;font-weight:700;color:var(--brand);margin:0}
.x-btn{border:none;background:none;color:var(--meta);font-size:22px;cursor:pointer}
.pick{height:118px;border:2px dashed var(--input-border);border-radius:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;color:var(--pick-text);background:var(--input-bg);margin:6px 0 14px;cursor:pointer}
.pick i{font-size:30px}
.fld{margin-bottom:12px}
.fld label{display:block;font-size:12px;font-weight:600;color:var(--label);margin-bottom:5px}
.fld input,.fld textarea{width:100%;border:1px solid var(--input-border);border-radius:10px;padding:9px 11px;font-family:'Quicksand',sans-serif;font-size:16px;color:var(--input-text);background:var(--input-bg)}
.fld textarea{min-height:60px;resize:none}
.row2{display:flex;gap:10px}
.row2 .fld{flex:1}
.badge{display:inline-block;font-size:11px;font-weight:600;color:var(--badge-fg);background:var(--badge-bg);border-radius:20px;padding:2px 8px;margin-left:4px}
.save{width:100%;border:none;border-radius:12px;background:var(--brand);color:var(--brand-fg);font-family:'Quicksand',sans-serif;font-weight:600;font-size:16px;padding:12px;margin-top:4px;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
@media (prefers-reduced-motion:reduce){.card-inner,.sheet,.scrim{transition:none!important}}