:root{
  --bg:#f6f6f5; --surface:#ffffff; --ink:#232323; --sub:#767676;
  --border:#dcdcdc; --accent:#2b2b2b; --accent-ink:#ffffff;
  --danger:#c0392b; --overlay:rgba(0,0,0,.4);
  --radius:8px;
}
[data-theme="dark"]{
  --bg:#181818; --surface:#232323; --ink:#eeeeee; --sub:#9a9a9a;
  --border:#3a3a3a; --accent:#eeeeee; --accent-ink:#181818;
  --danger:#e74c3c; --overlay:rgba(0,0,0,.6);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; display:flex; flex-direction:column; min-height:100vh;
  background:var(--bg); color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  transition:background .2s,color .2s;
}

/* -- Top bar -- */
.topbar{
  display:flex; justify-content:space-between; align-items:center;
  padding:14px 24px; border-bottom:1px solid var(--border);
}
.logo{ font-size:18px; font-weight:600; margin:0; }
.theme-icon{ font-size:15px; filter:grayscale(1)brightness(0); }
[data-theme="dark"] .theme-icon{ filter:grayscale(1)brightness(0)invert(1); }

/* -- Main wrap -- */
.wrap{ flex:1; width:100%; max-width:640px; margin:0 auto; padding:24px 20px 40px; }

/* -- Composer -- */
.composer{
  display:flex; flex-direction:column; gap:10px;
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius); padding:10px;
}

.textarea-wrap{ position:relative; }
.textarea-wrap .input{
  font:inherit; font-size:14px; padding:10px 56px 28px 12px;
  border-radius:6px; border:1px solid var(--border);
  background:var(--bg); color:var(--ink);
  outline:none; width:100%; resize:vertical; min-height:64px;
  display:block; line-height:1.5;
}
.textarea-wrap .input:focus{ border-color:var(--accent); }

.counter-inline{
  position:absolute; bottom:6px; right:10px;
  font-size:11px; color:var(--sub); pointer-events:none;
}

.composer-actions{
  display:flex; gap:8px; align-items:stretch;
}

/* -- Buttons -- */
.btn{
  font:inherit; font-size:13px; font-weight:600; border-radius:var(--radius);
  padding:9px 16px; border:1px solid var(--border); cursor:pointer;
  display:inline-flex; align-items:center; justify-content:center; gap:6px;
  background:var(--surface); color:var(--ink);
  transition:opacity .15s,transform .05s; position:relative;
}
.btn:hover{ opacity:.85; }
.btn:active{ transform:scale(.97); }
.btn:disabled{ opacity:.5; cursor:default; pointer-events:none; }
.btn-primary{ background:var(--accent); color:var(--accent-ink); border-color:var(--accent); }
.btn-ghost{ background:transparent; }
.btn-danger{ background:var(--danger); color:#fff; border-color:var(--danger); }

.btn-delete-inline{
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
  opacity: .9;
}
.btn-delete-inline:hover{ opacity:.85; }

/* Keep spinner inside but centered even when label hidden */
.btn .btn-label{ visibility:visible; }
.btn .spinner{ position:absolute; }

.btn-icon{
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius); padding:9px; cursor:pointer;
  display:inline-flex; align-items:center; justify-content:center;
  color:var(--ink); transition:opacity .15s,transform .05s;
  flex-shrink:0;
}
.btn-icon:hover{ opacity:.85; }
.btn-icon:active{ transform:scale(.97); }
.btn-icon.image-selected{ border-color:var(--accent); background:var(--accent); color:var(--accent-ink); }

/* -- Spinner -- */
.spinner{
  width:14px; height:14px; border-radius:50%;
  border:2px solid currentColor; border-top-color:transparent;
  animation:spin .6s linear infinite;
}
@keyframes spin{ to{ transform:rotate(360deg); } }

/* -- Toolbar: search + filter -- */
.toolbar{
  display:flex; gap:8px; margin-top:16px;
}
.search-wrap{
  position:relative; flex:1;
}
.search-input{
  font:inherit; font-size:13px; padding:8px 32px 8px 12px;
  border-radius:var(--radius); border:1px solid var(--border);
  background:var(--surface); color:var(--ink); outline:none; width:100%;
}
.search-input:focus{ border-color:var(--accent); }
.search-clear{
  position:absolute; right:6px; top:50%; transform:translateY(-50%);
  background:none; border:none; font-size:16px; cursor:pointer;
  color:var(--sub); padding:2px 6px; line-height:1;
}
.search-clear:hover{ color:var(--ink); }

.select-filter{
  font:inherit; font-size:13px; padding:8px 10px;
  border-radius:var(--radius); border:1px solid var(--border);
  background:var(--surface); color:var(--ink); outline:none;
  cursor:pointer; min-width:110px;
}

/* -- Pagination -- */
.pagination{
  display:flex; justify-content:center; align-items:center; gap:4px;
  margin-top:16px; flex-wrap:wrap;
}
.pagination:empty{ display:none; }
.pg-btn{
  font:inherit; font-size:12px; font-weight:600; min-width:32px; height:32px;
  border-radius:6px; border:1px solid var(--border);
  background:var(--surface); color:var(--ink); cursor:pointer;
  display:inline-flex; align-items:center; justify-content:center;
  padding:0 6px; transition:opacity .15s;
}
.pg-btn:hover{ opacity:.8; }
.pg-btn:disabled{ opacity:.4; cursor:default; }
.pg-btn.active{ background:var(--accent); color:var(--accent-ink); border-color:var(--accent); }
.pg-ellipsis{ font-size:12px; color:var(--sub); padding:0 2px; }

/* -- Notes list -- */
.notes-list{ list-style:none; margin:16px 0 0; padding:0; display:flex; flex-direction:column; gap:10px; }
.note-card{
  background:var(--surface); border:1px solid var(--border); border-radius:10px;
  padding:14px 16px; display:flex; justify-content:space-between; align-items:flex-start; gap:10px;
  animation:fade .2s ease-out; cursor:pointer;
}
.note-card:hover{ border-color:var(--accent); }
.note-body{ flex:1; min-width:0; }
.note-content{ font-size:14px; line-height:1.5; word-break:break-word; white-space:pre-line; }
.note-meta{ font-size:11px; color:var(--sub); margin-top:6px; }
.note-actions{ display:flex; gap:6px; flex-shrink:0; }
.note-actions .btn{ padding:6px 10px; font-size:12px; }

/* Thumbnail preview */
.note-thumb{
  width:72px; height:72px; border-radius:6px; object-fit:cover;
  cursor:pointer; border:1px solid var(--border); flex-shrink:0;
  transition:opacity .15s;
}
.note-thumb:hover{ opacity:.8; }

@keyframes fade{ from{opacity:0; transform:translateY(4px);} to{opacity:1; transform:translateY(0);} }

.empty{ text-align:center; color:var(--sub); font-size:13px; padding:36px 0; }

/* -- Footer -- */
.footer{
  text-align:center; padding:18px; font-size:11px; color:var(--sub);
  border-top:1px solid var(--border);
}
.footer-link{ color:#7b1f2e; text-decoration:none; font-weight:700; transition:color .15s; }
.footer-link:hover{ color:#1b2a4a; }
.footer-link:active{ color:inherit; }

/* -- Modals -- */
.modal-overlay{
  position:fixed; inset:0; background:var(--overlay);
  display:flex; align-items:center; justify-content:center; padding:20px; z-index:10;
}
.modal-overlay[hidden]{ display:none; }
.modal{
  background:var(--surface); border-radius:12px; padding:22px;
  max-width:400px; width:100%; box-shadow:0 12px 40px rgba(0,0,0,.2);
  animation:pop .18s ease-out; position:relative;
  max-height:90vh; overflow-y:auto;
}
.modal-lg{ max-width:520px; }
@keyframes pop{ from{opacity:0; transform:scale(.96);} to{opacity:1; transform:scale(1);} }
.modal-title{ font-size:16px; margin:0 0 12px; }
.modal-body{ font-size:13px; color:var(--sub); margin:0 0 4px; }
.modal-actions{ display:flex; justify-content:flex-end; gap:8px; margin-top:16px; }
.modal-close{
  position:absolute; top:10px; right:14px; background:none; border:none;
  font-size:22px; cursor:pointer; color:var(--sub); padding:0; line-height:1;
}
.modal-close:hover{ color:var(--ink); }

.textarea{
  font:inherit; font-size:14px; padding:10px 12px; border-radius:var(--radius);
  border:1px solid var(--border); background:var(--bg); color:var(--ink);
  outline:none; width:100%; resize:vertical; min-height:80px;
}
.textarea:focus{ border-color:var(--accent); }

/* Image modal */
.modal-image{
  width:100%; max-height:50vh; object-fit:contain;
  border-radius:8px; margin-bottom:12px; background:var(--bg);
}
.modal-note-content{
  font-size:14px; line-height:1.5; white-space:pre-line; word-break:break-word;
}
.modal-note-meta{ font-size:11px; color:var(--sub); margin-top:4px; }

/* History modal */
.history-list{
  max-height:50vh; overflow-y:auto;
}
.history-item{
  padding:8px 0; border-bottom:1px solid var(--border);
  font-size:13px; line-height:1.4;
}
.history-item:last-child{ border-bottom:none; }
.history-time{ font-size:11px; color:var(--sub); }
.history-content{ margin-top:2px; white-space:pre-line; }
.history-badge{
  display:inline-block; font-size:10px; font-weight:600; padding:1px 6px;
  border-radius:4px; margin-right:4px;
  background:var(--accent); color:var(--accent-ink);
}

/* -- Toast -- */
.toast{
  position:fixed; bottom:24px; left:50%; transform:translateX(-50%);
  background:var(--accent); color:var(--accent-ink); font-size:13px;
  padding:10px 18px; border-radius:8px; box-shadow:0 6px 20px rgba(0,0,0,.2);
  animation:toastIn .2s ease-out; z-index:20; pointer-events:none;
}
.toast[hidden]{ display:none; }
@keyframes toastIn{ from{opacity:0; transform:translate(-50%,8px);} to{opacity:1; transform:translate(-50%,0);} }

/* -- Note detail modal -- */
.detail-image{
  width:100%; max-height:45vh; object-fit:contain;
  border-radius:8px; margin-bottom:12px; background:var(--bg);
}
.detail-content{
  font-size:14px; line-height:1.5; white-space:pre-line; word-break:break-word;
}
.detail-meta{ font-size:11px; color:var(--sub); margin-top:8px; }
.detail-actions{ display:flex; gap:8px; margin-top:14px; align-items:center; }
.detail-actions .btn{ padding:6px 10px; font-size:12px; }

.btn-history-emoji{
  background:transparent; border:none; cursor:pointer; font-size:16px;
  padding:4px 6px; border-radius:6px; line-height:1; opacity:.7; transition:opacity .15s;
}
.btn-history-emoji:hover{ opacity:1; }

/* History panel inside modal */
.history-panel{
  margin-top:12px; border-top:1px solid var(--border); padding-top:12px;
  max-height:200px; overflow-y:auto;
}

/* -- Responsive -- */
@media (max-width:480px){
  .composer-actions{ flex-wrap:wrap; }
  .composer-actions .btn-primary{ flex:1; }
  .toolbar{ flex-direction:column; }
  .note-card{ flex-direction:column; }
  .note-thumb{ width:100%; height:auto; max-height:180px; }
}

@media (prefers-reduced-motion:reduce){
  .note-card,.modal,.toast,.spinner{ animation:none; }
}