:root{
  --bg:#f4f6f8;--surface:#fff;--text:#1f2933;--muted:#667085;--line:#d9e0e7;
  --accent:#1e5f74;--accent-2:#2d7d92;--soft:#eaf3f6;--warning:#8a5a13;--warning-bg:#fff7e8;
  --success:#176b4d;--success-bg:#ecf8f2;--danger:#a43d3d;--danger-bg:#fff0f0;--shadow:0 8px 28px rgba(24,39,52,.08)
}
*{box-sizing:border-box} body{margin:0;background:var(--bg);color:var(--text);font-family:"Segoe UI",Tahoma,"Noto Sans Thai",Arial,sans-serif;line-height:1.5}
button,input,textarea,select{font:inherit}.app-shell{min-height:100vh}.topbar{display:flex;justify-content:space-between;gap:24px;align-items:flex-start;padding:28px 36px 22px;background:var(--surface);border-bottom:1px solid var(--line)}
.eyebrow,.kicker{font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);font-weight:700}.topbar h1{margin:2px 0 0;font-size:2rem}.subtitle{margin:6px 0 0;color:var(--muted);max-width:850px}.top-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.badge,.source-tag,.status-key{display:inline-flex;align-items:center;border-radius:999px;padding:6px 10px;font-size:.78rem;font-weight:600;background:#eef2f5;color:#425466}.source-tag.ai{background:#eef0ff;color:#4a4db7}.source-tag.evidence{background:var(--warning-bg);color:var(--warning)}
.workspace{display:grid;grid-template-columns:270px minmax(0,1fr);gap:24px;max-width:1500px;margin:0 auto;padding:24px 28px 40px}.sidebar{position:sticky;top:18px;align-self:start;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:12px;box-shadow:var(--shadow)}
.step{width:100%;border:0;background:transparent;text-align:left;display:grid;grid-template-columns:34px 1fr;column-gap:10px;padding:11px 9px;border-radius:12px;color:var(--text);cursor:pointer}.step span{grid-row:1/3;width:30px;height:30px;border-radius:50%;background:#eef2f5;display:grid;place-items:center;font-weight:700}.step b{font-size:.93rem}.step small{color:var(--muted)}.step.active{background:var(--soft)}.step.active span{background:var(--accent);color:#fff}
.progress-card{border-top:1px solid var(--line);margin-top:10px;padding:16px 8px 6px}.progress-label{display:flex;justify-content:space-between;font-size:.82rem}.progress-track{height:8px;background:#edf1f4;border-radius:999px;margin:8px 0;overflow:hidden}.progress-bar{height:100%;width:0;background:var(--accent);transition:width .25s}.progress-details{font-size:.76rem;color:var(--muted)}
.content{min-width:0}.panel{display:none}.panel.active{display:block}.section-heading{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin:4px 0 16px}.section-heading h2{margin:2px 0 3px;font-size:1.55rem}.section-heading p{margin:0;color:var(--muted)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;margin-bottom:16px;box-shadow:0 4px 18px rgba(24,39,52,.04)}.muted-card{background:#fafbfc}.card h3{margin:0 0 13px;font-size:1.04rem}.card-title-row{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px}.card-title-row h3{margin:0}
.grid{display:grid;gap:14px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.one{grid-template-columns:1fr}label{display:flex;flex-direction:column;gap:6px;font-size:.88rem;font-weight:600;color:#344054}input,textarea,select{width:100%;border:1px solid #cfd7df;border-radius:10px;background:#fff;padding:10px 11px;color:var(--text);outline:none}textarea{resize:vertical;min-height:48px}input:focus,textarea:focus,select:focus{border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(45,125,146,.12)}
.lock-field{display:flex;align-items:stretch}.lock-field input{border-radius:10px 0 0 10px}.lock-btn{width:44px;border:1px solid #cfd7df;border-left:0;border-radius:0 10px 10px 0;background:#f8fafb;cursor:pointer}.lock-btn.locked{background:var(--success-bg)}.choice-strip{display:flex;gap:24px;flex-wrap:wrap;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}.choice-strip label,.switch-label{flex-direction:row;align-items:center;font-weight:500}.choice-strip input,.switch-label input{width:auto}
.action-row{display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap;margin:18px 0}.action-row.left{justify-content:flex-start;margin:0}.button{border:1px solid transparent;border-radius:10px;padding:10px 15px;font-weight:700;cursor:pointer}.button.primary{background:var(--accent);color:#fff}.button.primary:hover{background:#174c5d}.button.ghost{background:#fff;border-color:#cfd7df;color:#344054}.button:disabled{opacity:.45;cursor:not-allowed}
.notice{border-radius:12px;padding:12px 14px;margin-bottom:14px;border:1px solid}.notice.info{background:#eef6ff;border-color:#c9ddf2}.notice.success{background:var(--success-bg);border-color:#bde5d3;color:var(--success)}.notice.error{background:var(--danger-bg);border-color:#efc1c1;color:var(--danger)}.hidden{display:none!important}
.empty-state{background:#fff;border:1px dashed #cbd4dc;border-radius:14px;padding:28px;color:var(--muted);text-align:center}.empty-state.compact{padding:16px}.direction-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.direction-card{background:#fff;border:2px solid transparent;border-radius:16px;padding:18px;box-shadow:var(--shadow);cursor:pointer}.direction-card.selected{border-color:var(--accent)}.direction-card h3{margin:0 0 4px}.direction-card .title-en{font-size:.94rem;color:var(--accent);font-weight:700}.direction-card .research-title{font-size:.91rem;background:#f6f8fa;border-radius:10px;padding:10px;margin:12px 0}.direction-card p{font-size:.86rem;color:#475467}.mini-list{margin:8px 0 0;padding-left:18px;font-size:.84rem;color:#475467}.pill-row{display:flex;gap:6px;flex-wrap:wrap}.pill{font-size:.72rem;background:#eef2f5;border-radius:999px;padding:4px 8px}
.proposal-view{display:grid;gap:16px}.proposal-title{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}.proposal-title h3{margin:0 0 8px;font-size:1.25rem}.proposal-section{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px}.proposal-section h3{margin:0 0 12px}.blueprint-list{display:grid;gap:10px}.blueprint-item{border-left:4px solid #cbd7dc;background:#f8fafb;padding:10px 12px;border-radius:0 10px 10px 0}.blueprint-item strong{display:block}.evidence-mark{font-size:.77rem;color:var(--warning);margin-top:3px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}.definition-list{display:grid;gap:9px}.definition-row{display:grid;grid-template-columns:180px 1fr;gap:10px;border-bottom:1px solid #edf0f2;padding-bottom:8px}.definition-row:last-child{border-bottom:0}.definition-row dt{font-weight:700}.definition-row dd{margin:0;color:#475467}
.table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:14px}.data-table{width:100%;border-collapse:collapse;min-width:820px}.data-table th,.data-table td{padding:10px 11px;border-bottom:1px solid #e9edf0;text-align:left;vertical-align:top;font-size:.84rem}.data-table th{background:#f7f9fa;font-size:.78rem}.status-ok{color:var(--success);font-weight:700}.status-warn{color:var(--warning);font-weight:700}.status-bad{color:var(--danger);font-weight:700}.summary-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:14px}.summary-box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px}.summary-box strong{display:block;font-size:1.45rem}.summary-box span{font-size:.78rem;color:var(--muted)}
.feasibility{margin-top:14px;border-radius:14px;padding:16px;border:1px solid #e7d7b5;background:var(--warning-bg)}.feasibility.good{border-color:#bfdfd1;background:var(--success-bg)}.feasibility h3{margin:0 0 8px}.save-status{font-size:.84rem;margin-top:10px;color:var(--muted)}.projects-list{display:grid;gap:10px}.project-row{display:flex;justify-content:space-between;align-items:center;gap:12px;border:1px solid var(--line);border-radius:12px;padding:12px}.project-meta b{display:block}.project-meta small{color:var(--muted)}
footer{display:flex;justify-content:space-between;gap:16px;max-width:1500px;margin:0 auto;padding:0 30px 28px;color:#667085;font-size:.78rem}dialog{border:0;border-radius:16px;padding:0;box-shadow:0 24px 70px rgba(0,0,0,.2);width:min(620px,92vw)}dialog::backdrop{background:rgba(15,23,42,.42)}.dialog-card{padding:20px}.dialog-header{display:flex;justify-content:space-between;align-items:center}.dialog-header h3{margin:0}.icon-close{border:0;background:transparent;font-size:1.8rem;cursor:pointer}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:16px}.small-note{font-size:.8rem;color:var(--muted);margin-top:10px}
@media(max-width:1050px){.workspace{grid-template-columns:1fr}.sidebar{position:static;display:grid;grid-template-columns:repeat(5,1fr);gap:5px}.step{grid-template-columns:30px 1fr}.step small{display:none}.progress-card{grid-column:1/-1}.direction-list{grid-template-columns:1fr}.grid.three{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.topbar{padding:20px;display:block}.top-actions{margin-top:14px}.workspace{padding:14px}.sidebar{grid-template-columns:1fr 1fr}.step:nth-child(5){grid-column:1/-1}.grid.two,.grid.three,.two-col{grid-template-columns:1fr}.section-heading{display:block}.status-key,.source-tag{margin-top:8px}.summary-grid{grid-template-columns:1fr 1fr}.definition-row{grid-template-columns:1fr}.project-row,footer{display:block}.project-row .button{margin-top:8px}}