:root{ --radius:14px; --shadow:0 10px 30px rgba(0,0,0,.30);
  --text:#111827; --muted:#6b7280; --bg:#f4f6f8; --surface:#ffffff; --surface-2:#f3f4f6;
  --primary:#2563eb; --primary-600:#1d4ed8; --danger:#b91c1c; --danger-600:#991b1b; }
body[data-theme="dark"]{ --text:#e5e7eb; --muted:#9ca3af; --bg:#0f1115; --surface:#161a22; --surface-2:#1e2430; --primary:#e11d48; --primary-600:#be123c; --danger:#ef4444; --danger-600:#dc2626; }
body[data-theme="light"]{ --text:#111827; --muted:#6b7280; --bg:#f4f6f8; --surface:#ffffff; --surface-2:#f3f4f6; --primary:#2563eb; --primary-600:#1d4ed8; --danger:#b91c1c; --danger-600:#991b1b; }
body[data-theme="green"]{ --text:#0b1b12; --muted:#4b5563; --bg:#eef7f1; --surface:#ffffff; --surface-2:#e8f3ec; --primary:#10b981; --primary-600:#059669; --danger:#b91c1c; --danger-600:#991b1b; }
body[data-theme="gold"]{ --text:#1a1508; --muted:#6b5e3a; --bg:#f9f6ef; --surface:#ffffff; --surface-2:#f2ead6; --primary:#b8860b; --primary-600:#8b6d09; --danger:#b45309; --danger-600:#92400e; }
*{box-sizing:border-box} html,body{height:100%}
body{ margin:0; background:linear-gradient(180deg,var(--bg),var(--surface-2)); color:var(--text); font:16px/1.45 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial; transition: background .35s ease, color .35s ease; }
.site-header,.site-footer{ display:flex;justify-content:space-between;align-items:center; padding:14px 20px;background:linear-gradient(180deg,var(--surface),var(--surface-2)); border-bottom:1px solid rgba(0,0,0,.08); transition: background .35s ease, color .35s ease, border-color .35s ease; }
.site-footer{border-top:1px solid rgba(0,0,0,.08);border-bottom:none;margin-top:24px}
.brand{display:flex;align-items:center;gap:10px}.logo{width:120px;height:auto;border-radius:8px}
.top-nav a{color:var(--muted);text-decoration:none;margin-right:14px} .top-nav a:hover{color:var(--text)}
.theme-switcher{display:inline-flex;align-items:center;gap:8px;margin-left:12px}
#theme-select{padding:6px 10px;border-radius:10px;border:1px solid rgba(0,0,0,.12); background:var(--surface); color:var(--text)}

.container{max-width:1200px;margin:22px auto;padding:0 16px}
.layout{display:grid;grid-template-columns: 1.4fr .8fr; gap:22px}
.card{background:var(--surface); border:1px solid rgba(0,0,0,.12); border-radius:var(--radius); padding:18px; box-shadow:var(--shadow); transform: translateY(8px); opacity: 0; transition: transform .45s ease, opacity .45s ease, background .35s ease, border-color .35s ease;}
.card.is-visible{ transform: none; opacity: 1; }
.card:hover{border-color: color-mix(in srgb, var(--primary) 35%, rgba(0,0,0,.12)); box-shadow: 0 10px 30px rgba(0,0,0,.30), 0 0 0 4px color-mix(in srgb, var(--primary) 18%, transparent);}

.section{margin-bottom:18px} .section-title{margin:0 0 12px;font-size:18px;font-weight:700;letter-spacing:.2px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}

label{display:flex;flex-direction:column;gap:6px;color:var(--muted);font-weight:600}
input,select,textarea{ width:100%;padding:10px 12px;border-radius:10px;border:1px solid rgba(0,0,0,.12); background:var(--surface);color:var(--text);outline:none;transition:border .2s, box-shadow .2s, background .35s ease, color .35s ease; }
textarea{min-height:120px}
input:focus,select:focus,textarea:focus{border-color:var(--primary); box-shadow:0 0 0 4px color-mix(in srgb, var(--primary) 20%, transparent)}
input:hover, select:hover, textarea:hover{border-color: color-mix(in srgb, var(--primary) 25%, rgba(0,0,0,.12));}

.actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end;margin-top:8px}
.btn{ border:1px solid rgba(0,0,0,.12);background:var(--surface);color:var(--text); padding:10px 16px;border-radius:10px;cursor:pointer;transition:.2s transform,.2s background,.2s border,.2s color,.2s box-shadow; }
.btn.small{padding:6px 10px;font-size:13px}
.btn:hover{transform:translateY(-1px);border-color:color-mix(in srgb, var(--primary) 30%, rgba(0,0,0,.12)); box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 25%, transparent), 0 6px 18px rgba(0,0,0,.15);}
.btn.primary{background:linear-gradient(180deg,var(--primary),var(--primary-600));border-color:transparent;color:white}
.btn.danger{background:linear-gradient(180deg,var(--danger),var(--danger-600));border-color:transparent;color:#fff}

.group{margin-bottom:14px} .group-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.repeaters{display:flex;flex-direction:column;gap:8px}
.repeater{display:grid;grid-template-columns:1fr 150px 110px;gap:8px; transition: transform .25s ease, opacity .25s ease, height .25s ease, margin .25s ease; }
.repeater.adding{ transform: translateY(-4px); opacity: 0; }
.repeater.adding.ready{ transform: none; opacity: 1; }
.repeater.removing{ opacity: 0; height: 0; margin: 0; overflow: hidden; }

.summary{position:sticky; top:22px; height:fit-content}
.result{display:grid;gap:8px}
.result p{margin:0;background:var(--surface);border:1px solid rgba(0,0,0,.12);padding:10px 12px;border-radius:10px}

.simple-table{border-collapse:collapse;width:100%}
.simple-table th,.simple-table td{border-bottom:1px solid rgba(0,0,0,.1);padding:8px;text-align:left;font-size:14px}

.toast{position:fixed;right:18px;bottom:18px;background:var(--surface);color:var(--text); border:1px solid rgba(0,0,0,.12);padding:10px 14px;border-radius:10px;box-shadow:var(--shadow); transform: translateY(10px); opacity:0; transition: transform .25s ease, opacity .25s ease;}
.toast.show{transform:none; opacity:1;}

.modal{position:fixed;inset:0;display:none; z-index:10000;}
.modal[aria-hidden="false"]{display:block}
.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.5); opacity:0; transition: opacity .3s ease; z-index:10000; }
.modal[aria-hidden="false"] .modal-backdrop{ opacity:1; }
.modal-dialog{position:relative;z-index:10001;max-width:900px;margin:5vh auto;background:var(--surface); border:1px solid rgba(0,0,0,.12); border-radius:var(--radius); box-shadow:var(--shadow); overflow:hidden; transform: translateY(10px); opacity:0; transition: transform .3s ease, opacity .3s ease; }
.modal[aria-hidden="false"] .modal-dialog{ transform:none; opacity:1; }
.modal-header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid rgba(0,0,0,.08)}
.modal-body{padding:12px 16px;max-height:70vh;overflow:auto}
.modal-body table{width:100%;border-collapse:collapse;font-size:14px}
.modal-body th,.modal-body td{border-bottom:1px solid rgba(0,0,0,.1);padding:8px;text-align:right}
.modal-body th:first-child,.modal-body td:first-child{text-align:left}

@media print{ .no-print, .site-header, .top-nav, .modal { display:none !important; } body{ background:#fff; } .container{ max-width:100%; margin:0; padding:0; } .layout{ grid-template-columns:1fr; } .card{ box-shadow:none; border:none; } }
@media (prefers-reduced-motion: reduce){ * { animation: none !important; transition: none !important; } }
@media (max-width: 980px){ .layout{grid-template-columns:1fr;gap:16px} .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (max-width: 640px){ .grid-2,.grid-3{grid-template-columns:1fr} }

/* 3-column layout for Desking */
.grid-3-col{display:grid;grid-template-columns:300px 1fr 360px;gap:12px;align-items:start}
@media (max-width: 1100px){ .grid-3-col{grid-template-columns:1fr; } }
#col-ai .card{position:sticky; top:70px}

/* === Draggable + Resizable Columns Enhancements === */
.resizable-columns{ position: relative; }
.resizable-columns .gutter{ width:10px; cursor: col-resize; background: var(--surface-2); border-radius: 10px; transition: background .2s ease, opacity .2s ease; }
.resizable-columns .gutter:hover{ background: var(--primary); opacity:.45; }
.desk-column{ min-height: 40px; }
.desk-column.drag-over{ outline: 2px dashed var(--primary); outline-offset: 6px; border-radius: var(--radius); }
.desk-card{ transition: transform .15s ease, box-shadow .15s ease, opacity .2s; }
.desk-card.dragging{ opacity:.6; box-shadow: 0 8px 30px rgba(0,0,0,.25); transform: rotate(.5deg); }
.desk-placeholder{ height: 48px; border-radius: 12px; border:2px dashed var(--muted); margin: 8px 0; }
@media (max-width: 1100px){
  .resizable-columns .gutter{ display:none; }
}