@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');

:root{
  --bg:#F5FBF7;
  --surface:#FFFFFF;
  --surface-2:#EAF6EF;
  --border:#D9EAE0;
  --text:#1E2B22;
  --muted:#6E8579;
  --accent:#3FAE72;
  --accent-dim:#E3F5EA;
  --warn:#C97F16;
  --danger:#C7495A;
  --radius:10px;
}

*{ box-sizing:border-box; }

body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(63,174,114,0.10), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:'Inter', system-ui, sans-serif;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3, .mono{
  font-family:'IBM Plex Mono', monospace;
  letter-spacing:0.01em;
}

a{ color:inherit; }

/* ---------- status dot (signature element) ---------- */
.dot{
  width:8px; height:8px; border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 0 rgba(63,174,114,0.45);
  animation:pulse 2.2s infinite;
  flex-shrink:0;
}
@keyframes pulse{
  0%{ box-shadow:0 0 0 0 rgba(63,174,114,0.45); }
  70%{ box-shadow:0 0 0 8px rgba(63,174,114,0); }
  100%{ box-shadow:0 0 0 0 rgba(63,174,114,0); }
}
@media (prefers-reduced-motion: reduce){
  .dot{ animation:none; }
}

/* ---------- public index ---------- */
.page{
  max-width:1080px;
  margin:0 auto;
  padding:56px 24px 80px;
}
.page-header{
  display:flex; align-items:center; gap:12px;
  margin-bottom:8px;
}
.page-header h1{
  font-size:22px; margin:0; font-weight:600;
}
.page-eyebrow{
  color:var(--muted);
  font-size:13px;
  margin:0 0 40px;
  padding-left:20px;
}
.cat-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:20px;
}
@media (max-width:860px){
  .cat-grid{ grid-template-columns:repeat(2, minmax(0, 1fr)); }
}
@media (max-width:560px){
  .cat-grid{ grid-template-columns:1fr; }
}
.cat-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:18px;
}
.cat-card h2{
  font-size:13px;
  text-transform:uppercase;
  color:var(--muted);
  margin:0 0 12px;
  font-weight:600;
  padding-bottom:10px;
  border-bottom:1px solid var(--border);
}
.link-row{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:10px 8px;
  border-radius:8px;
  text-decoration:none;
  transition:background .15s ease;
}
.link-row:hover{ background:var(--surface-2); }
.link-row .dot{ margin-top:6px; }
.link-title{ font-weight:500; font-size:14.5px; }
.link-desc{ color:var(--muted); font-size:12.5px; margin-top:2px; }
.empty-state{
  color:var(--muted);
  font-size:13px;
  padding:8px;
}
.footer-note{
  margin-top:48px;
  color:var(--muted);
  font-size:12px;
  text-align:center;
}
.footer-note a{ color:var(--accent); text-decoration:none; }

/* ---------- login ---------- */
.login-body{
  min-height:100vh;
  display:flex; align-items:center; justify-content:center;
  background:var(--bg);
}
.login-card{
  width:100%; max-width:340px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:32px;
}
.login-mark{ display:flex; align-items:center; gap:10px; }
.login-mark h1{ font-size:18px; margin:0; }
.login-sub{ color:var(--muted); font-size:13px; margin:6px 0 20px; }
.login-card label{
  display:block; font-size:12.5px; color:var(--muted);
  margin-bottom:14px;
}
.login-card input{
  display:block; width:100%; margin-top:6px;
  background:var(--bg);
  border:1px solid var(--border);
  color:var(--text);
  border-radius:8px;
  padding:10px 12px;
  font-size:14px;
}
.login-card input:focus{ outline:2px solid var(--accent); outline-offset:1px; }
.login-card button{
  width:100%;
  background:var(--accent);
  color:#FFFFFF;
  border:none;
  padding:11px;
  border-radius:8px;
  font-weight:600;
  font-size:14px;
  cursor:pointer;
  margin-top:6px;
}
.login-card button:hover{ filter:brightness(1.08); }
.alert-error{
  background:rgba(240,85,107,0.12);
  border:1px solid rgba(240,85,107,0.4);
  color:#A6303F;
  font-size:13px;
  padding:8px 12px;
  border-radius:8px;
  margin-bottom:14px;
}

/* ---------- admin ---------- */
.admin-shell{ max-width:1080px; margin:0 auto; padding:28px 24px 80px; }
.admin-top{
  display:flex; align-items:center; justify-content:space-between;
  margin-bottom:28px;
}
.admin-top .brand{ display:flex; align-items:center; gap:10px; }
.admin-top h1{ font-size:17px; margin:0; }
.admin-top .actions{ display:flex; gap:10px; align-items:center; }
.btn{
  font-family:'Inter',sans-serif;
  font-size:13px; font-weight:600;
  border-radius:8px; padding:8px 14px;
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--text);
  cursor:pointer;
  text-decoration:none;
  display:inline-flex; align-items:center; gap:6px;
}
.btn:hover{ background:var(--surface-2); }
.btn-accent{ background:var(--accent); color:#FFFFFF; border-color:var(--accent); }
.btn-accent:hover{ filter:brightness(1.08); }
.btn-danger{ color:var(--danger); }
.btn-sm{ padding:5px 9px; font-size:12px; }

.category-block{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  margin-bottom:16px;
  overflow:hidden;
}
.category-head{
  display:flex; align-items:center; gap:10px;
  padding:12px 14px;
  border-bottom:1px solid var(--border);
  background:var(--surface-2);
}
.category-head .handle{ cursor:grab; color:var(--muted); }
.category-head .name{ font-weight:600; font-size:14px; flex:1; }
.category-head .cat-actions{ display:flex; gap:6px; }

.link-list{ padding:8px; min-height:8px; }
.link-item{
  display:flex; align-items:center; gap:10px;
  padding:9px 10px;
  border-radius:8px;
  border:1px solid transparent;
}
.link-item:hover{ border-color:var(--border); background:var(--surface-2); }
.link-item .handle{ cursor:grab; color:var(--muted); font-size:14px; }
.link-item .info{ flex:1; min-width:0; }
.link-item .info .t{ font-size:13.5px; font-weight:500; }
.link-item .info .u{ font-size:12px; color:var(--muted); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.link-item .row-actions{ display:flex; gap:6px; }

.sortable-ghost{ opacity:0.35; }
.sortable-drag .category-head{ background:var(--accent-dim); }

.add-row{ padding:10px 14px; }
.add-link-form, .add-cat-form{
  display:flex; gap:8px; padding:10px 14px; flex-wrap:wrap;
}
.add-link-form input, .add-cat-form input{
  background:var(--bg); border:1px solid var(--border); color:var(--text);
  border-radius:7px; padding:8px 10px; font-size:13px;
}
.add-link-form input[name="title"]{ flex:1; min-width:140px; }
.add-link-form input[name="url"]{ flex:1.4; min-width:160px; }
.add-link-form input[name="desc"]{ flex:1.4; min-width:160px; }
.add-cat-form input{ flex:1; }

.toast{
  position:fixed; bottom:20px; left:50%; transform:translateX(-50%);
  background:var(--surface-2); border:1px solid var(--border);
  padding:10px 16px; border-radius:8px; font-size:13px;
  opacity:0; pointer-events:none; transition:opacity .2s ease;
}
.toast.show{ opacity:1; }
.toast.err{ border-color:rgba(240,85,107,0.5); color:#A6303F; }

.modal-backdrop{
  position:fixed; inset:0; background:rgba(0,0,0,0.55);
  display:none; align-items:center; justify-content:center; z-index:50;
}
.modal-backdrop.show{ display:flex; }
.modal{
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius); padding:20px; width:100%; max-width:380px;
}
.modal h3{ margin:0 0 14px; font-size:15px; }
.modal label{ display:block; font-size:12px; color:var(--muted); margin-bottom:12px; }
.modal input, .modal textarea{
  display:block; width:100%; margin-top:5px;
  background:var(--bg); border:1px solid var(--border); color:var(--text);
  border-radius:7px; padding:8px 10px; font-size:13px; font-family:inherit;
}
.modal .modal-actions{ display:flex; justify-content:flex-end; gap:8px; margin-top:6px; }

@media (max-width:560px){
  .page{ padding:36px 16px 60px; }
  .admin-shell{ padding:20px 14px 60px; }
}