:root{
  --ink:#1F2A44; --ink-2:#4A5675; --paper:#F5F6F8; --surface:#FFFFFF; --line:#DCE1EA;
  --accent:#2D6A63; --accent-ink:#FFFFFF; --accent-soft:#E3EFEC;
  --note:#FFF5D1; --note-line:#E8D58A; --danger:#B42318; --pos:#1E7A46;
  --radius-lg:14px; --radius:9px; --radius-sm:6px;
  --font:'Anuphan', 'Noto Sans Thai', system-ui, sans-serif; --font-doc:'Sarabun', 'TH Sarabun New', serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){
  :root{ --ink:#E7EAF2; --ink-2:#A9B2C7; --paper:#141822; --surface:#1C2130; --line:#2E3548;
    --accent:#5FB3A6; --accent-ink:#0E1A18; --accent-soft:#1F3532; --note:#2E2A18; --note-line:#5C5124; color-scheme: dark; }
}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.6}
a{color:var(--accent)}
h1,h2,h3,h4{line-height:1.3;margin:0 0 .5em}
h1{font-size:1.65rem;font-weight:700} h2{font-size:1.35rem} h3{font-size:1.08rem} h4{font-size:1rem;margin-top:1.2em}
.muted{color:var(--ink-2)} .small{font-size:.86rem}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

/* top bar */
.topbar{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.7rem 1.4rem;background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:.55rem;font-weight:700;color:var(--ink);text-decoration:none}
.brand-mark{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--ink);color:var(--paper);font-weight:700}
.topbar nav{display:flex;gap:1.1rem;align-items:center;flex-wrap:wrap}
.topbar nav a{color:var(--ink-2);text-decoration:none;font-size:.95rem}
.topbar nav a:hover{color:var(--ink)}
.credit-pill{background:var(--accent-soft);color:var(--accent)!important;padding:.25rem .8rem;border-radius:999px;font-weight:600}
.page{max-width:1320px;margin:0 auto;padding:1.6rem 1.4rem 3rem}
.foot{text-align:center;color:var(--ink-2);font-size:.82rem;padding:1.5rem}
.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:1rem;margin-bottom:1.4rem;flex-wrap:wrap}

/* forms & buttons */
label{display:flex;flex-direction:column;gap:.35rem;font-weight:500;font-size:.95rem}
input,select,textarea{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:.6rem .75rem;width:100%}
textarea{resize:vertical;line-height:1.6}
input:focus,select:focus,textarea:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px var(--accent-soft)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;font:inherit;font-weight:600;font-size:.95rem;padding:.6rem 1.1rem;border-radius:var(--radius);border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{border-color:var(--ink-2)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent}
.btn.danger{color:var(--danger);border-color:transparent;background:transparent}
.btn.small{padding:.35rem .75rem;font-size:.86rem}
.btn:disabled{opacity:.6;cursor:progress}
.btn.loading{white-space:normal}
.stack{display:flex;flex-direction:column;gap:1rem}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem 1.2rem}
.span2{grid-column:1/-1}
.row-actions{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center;margin-top:.9rem}
.row-actions input{width:auto}
.check{flex-direction:row;align-items:center;gap:.5rem;font-weight:500}
.check input{width:auto}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:1.3rem 1.4rem;margin-bottom:1.1rem}
.flash{padding:.75rem 1rem;border-radius:var(--radius);margin-bottom:1rem;font-weight:500}
.flash.ok{background:var(--accent-soft);color:var(--accent)}
.flash.err{background:#FDECEA;color:var(--danger)}
.inline{display:inline-flex;gap:.3rem;align-items:center;margin:.15rem 0}

/* auth */
body.auth{display:flex;min-height:100vh;align-items:center;justify-content:center;gap:4rem;padding:2rem;flex-wrap:wrap}
.auth-intro{max-width:460px}
.auth-intro h1{font-size:2.1rem;letter-spacing:-.01em}
.intro-steps{margin:1.4rem 0 0;padding:0;list-style:none;counter-reset:s;columns:2;column-gap:1.4rem;font-size:.92rem;color:var(--ink-2)}
.intro-steps li{counter-increment:s;padding:.2rem 0;break-inside:avoid}
.intro-steps li::before{content:counter(s);display:inline-grid;place-items:center;width:1.5rem;height:1.5rem;margin-right:.5rem;border-radius:50%;border:1.5px solid var(--accent);color:var(--accent);font-size:.78rem;font-weight:700}
.auth-box{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:2rem}

/* dashboard */
.dash-grid{display:grid;grid-template-columns:1fr 320px;gap:1.4rem;align-items:start}
.proj{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1.1rem 1.3rem;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:.7rem;text-decoration:none;color:var(--ink)}
.proj:hover{border-color:var(--accent)}
.proj h3{margin:0 0 .2rem;font-size:1.02rem}
.proj p{margin:0;font-size:.88rem}
.proj-progress{min-width:130px;text-align:right}
.bar{height:6px;background:var(--line);border-radius:3px;overflow:hidden;margin-bottom:.3rem}
.bar span{display:block;height:100%;background:var(--accent)}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:1.3rem}
.big-num{font-size:2.4rem;font-weight:700;margin:0 0 .6rem;color:var(--accent)}
.cost-list{list-style:none;padding:0;margin:0 0 1rem;font-size:.9rem}
.cost-list li{display:flex;justify-content:space-between;gap:.6rem;padding:.4rem 0;border-bottom:1px dashed var(--line)}
.mini{width:100%;font-size:.84rem;border-collapse:collapse}
.mini td{padding:.35rem .2rem;border-bottom:1px solid var(--line)}
.neg{color:var(--danger);text-align:right;font-weight:600} .pos{color:var(--pos);text-align:right;font-weight:600}
.empty{background:var(--surface);border:1.5px dashed var(--line);border-radius:var(--radius-lg);padding:2.5rem;text-align:center}
.info-box{background:var(--accent-soft);padding:.9rem 1rem;border-radius:var(--radius);font-size:.92rem}
.tag{font-size:.78rem;padding:.15rem .55rem;border-radius:999px;background:var(--line)}
.tag.approved{background:var(--accent-soft);color:var(--accent)} .tag.rejected{background:#FDECEA;color:var(--danger)}

/* wizard */
.wiz-head{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:1.3rem;flex-wrap:wrap}
.proj-title{font-size:1.4rem;margin:.2rem 0}
.wiz-head p{margin:0}
.wiz{display:grid;grid-template-columns:250px minmax(0,1fr) 300px;gap:1.5rem;align-items:start}
.wiz.export{grid-template-columns:minmax(0,1fr)}
.rail{position:sticky;top:80px;display:flex;flex-direction:column}
.rail-item{position:relative;display:flex;gap:.75rem;align-items:flex-start;padding:.45rem 0;text-decoration:none;color:var(--ink-2);font-size:.92rem}
.rail-item:not(:last-child)::after{content:"";position:absolute;left:14px;top:2.2rem;bottom:-.45rem;width:2px;background:var(--line)}
.rail-item.done:not(:last-child)::after{background:var(--accent)}
.node{flex:none;display:grid;place-items:center;width:30px;height:30px;border-radius:50%;border:2px solid var(--line);background:var(--surface);font-size:.82rem;font-weight:700;z-index:1}
.rail-label{padding-top:.2rem;line-height:1.35}
.rail-item.draft .node{border-color:var(--accent);color:var(--accent)}
.rail-item.done .node{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.rail-item.current{color:var(--ink);font-weight:600}
.rail-item.current .node{box-shadow:0 0 0 4px var(--accent-soft);border-color:var(--accent)}
.step-head{margin-bottom:1.1rem}
.step-no{font-size:.85rem;color:var(--accent);font-weight:600}
.step-head h2{font-size:1.6rem;margin:.15rem 0 .2rem}
.step-head p{margin:0}
.mode-pick{display:grid;grid-template-columns:1fr 1fr;gap:.8rem}
.mode{text-align:left;font:inherit;color:var(--ink);background:var(--surface);border:1.5px solid var(--line);border-radius:var(--radius);padding:1rem 1.1rem;cursor:pointer;display:flex;flex-direction:column;gap:.3rem}
.mode strong{font-size:1rem}
.mode span{font-size:.86rem;color:var(--ink-2)}
.mode:hover{border-color:var(--ink-2)}
.mode.accent{border-color:var(--accent);background:var(--accent-soft)}
.mode.loading{opacity:.75}
.prompt-box{margin-top:1rem}
.prompt-tools{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:.6rem}
#promptText{font-size:.86rem;background:var(--paper)}
.out-head{display:flex;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:.6rem;flex-wrap:wrap}
.out-head h3{margin:0}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}
.seg button{font:inherit;font-size:.85rem;padding:.3rem .8rem;border:0;background:var(--surface);color:var(--ink-2);cursor:pointer}
.seg button.on{background:var(--ink);color:var(--paper)}
#output{font-family:var(--font-doc);font-size:1rem}
.step-nav{display:flex;justify-content:space-between;margin-top:.4rem}

/* advisor margin */
.advisor{position:sticky;top:80px;display:flex;flex-direction:column;gap:1rem}
.note{background:var(--note);border-left:4px solid var(--note-line);border-radius:0 var(--radius) var(--radius) 0;padding:1rem 1.1rem;font-size:.9rem}
.note.plain{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--accent)}
.note h3{font-size:.98rem;margin-bottom:.5rem}
.note ul{margin:0;padding-left:1.1rem}
.note li{margin:.35rem 0}
.checks{list-style:none;padding-left:0!important}
.checks li::before{content:"☐ ";color:var(--accent)}
.calc label{font-size:.88rem;margin-bottom:.6rem}
.review-card{border-left:4px solid var(--note-line)}

/* doc rendering */
.doc{font-family:var(--font-doc);font-size:1.02rem;line-height:1.75}
.doc h1,.doc h2,.doc h3,.doc h4,.doc h5,.doc h6{font-family:var(--font);margin:1.1em 0 .4em}
.doc h3{font-size:1.1rem} .doc h4,.doc h5{font-size:1rem}
.doc table,.data{border-collapse:collapse;width:100%;margin:.8rem 0;font-size:.92rem}
.doc td,.doc th,.data td,.data th{border:1px solid var(--line);padding:.45rem .6rem;text-align:left;vertical-align:top}
.doc th,.data th{background:var(--paper)}
.doc pre{background:var(--paper);padding:.8rem;border-radius:var(--radius-sm);overflow-x:auto;font-size:.85rem}
.doc-title{text-align:center}
.doc-meta{text-align:center;color:var(--ink-2)}
.table-wrap{overflow-x:auto}
.tabs{display:flex;gap:.3rem;margin-bottom:1rem;flex-wrap:wrap}
.tabs a{padding:.5rem 1rem;border-radius:var(--radius);text-decoration:none;color:var(--ink-2)}
.tabs a.on{background:var(--ink);color:var(--paper)}

.toast{position:fixed;bottom:1.5rem;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:.75rem 1.2rem;border-radius:var(--radius);max-width:min(92vw,560px);z-index:50;font-size:.92rem}
.toast.err{background:var(--danger);color:#fff}

@media (max-width:1100px){ .wiz{grid-template-columns:220px minmax(0,1fr)} .advisor{grid-column:2;position:static} }
@media (max-width:760px){
  .wiz,.dash-grid,.form-grid,.mode-pick{grid-template-columns:1fr}
  .advisor{grid-column:auto}
  .rail{position:static;flex-direction:row;overflow-x:auto;gap:.4rem;padding-bottom:.4rem}
  .rail-item{flex-direction:column;align-items:center;min-width:44px}
  .rail-item::after,.rail-label{display:none}
  .page{padding:1rem}
  body.auth{gap:2rem}
}
@media print{
  .topbar,.foot,.page-head,.card:first-child,.out-head .row-actions{display:none!important}
  body{background:#fff} .card{border:0;padding:0}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

/* literature search */
.wiz.lit{grid-template-columns:minmax(0,1fr) 340px}
.lit-q{display:flex;gap:.6rem}
.lit-q input{flex:1;font-size:1.05rem}
.lit-filters{display:grid;grid-template-columns:repeat(3,1fr);gap:.8rem}
.src-pick{border:1px solid var(--line);border-radius:var(--radius);padding:.6rem 1rem;display:flex;flex-wrap:wrap;gap:.4rem 1.4rem}
.src-pick legend{font-weight:600;padding:0 .3rem}
.lit-sec h3 small{font-weight:400;font-size:.85rem}
.lit-card{padding:1rem 0;border-top:1px solid var(--line)}
.lit-card:first-of-type{border-top:0}
.lit-card h4{margin:0 0 .25rem;font-size:1rem;line-height:1.45}
.lit-card h4 a{color:var(--ink);text-decoration:none}
.lit-card h4 a:hover{color:var(--accent);text-decoration:underline}
.lit-meta{margin:.1rem 0 .4rem;font-size:.88rem;color:var(--ink-2)}
.lit-card details{font-size:.9rem;margin:.3rem 0}
.lit-card details p{font-family:var(--font-doc);margin:.4rem 0}
.lit-card summary{cursor:pointer;color:var(--accent)}
.lit-card .row-actions{margin-top:.5rem}
.badges{display:flex;flex-wrap:wrap;gap:.35rem}
.badge{font-size:.75rem;padding:.1rem .5rem;border-radius:999px;background:var(--paper);border:1px solid var(--line)}
.badge.ok{background:var(--accent-soft);border-color:transparent;color:var(--accent)}
.count-pill{display:inline-block;min-width:1.6rem;text-align:center;font-size:.8rem;padding:.05rem .45rem;border-radius:999px;background:var(--accent);color:var(--accent-ink)}
.doi-row{display:flex;gap:.4rem;margin:.6rem 0}
.doi-row input{font-size:.85rem;padding:.4rem .6rem}
.ref-list{margin:.4rem 0 0;padding-left:1.2rem;max-height:60vh;overflow-y:auto}
.ref-list li{margin:.6rem 0;font-size:.84rem}
.ref-apa{font-family:var(--font-doc);line-height:1.5;word-break:break-word}
.ref-tools{display:flex;gap:.7rem;margin-top:.15rem}
.ref-tools a,.link-btn{font:inherit;font-size:.8rem;background:none;border:0;padding:0;color:var(--accent);cursor:pointer;text-decoration:underline}
.link-btn.danger{color:var(--danger)}
.src-tag{font-size:.7rem;padding:.05rem .4rem;border-radius:4px;background:var(--paper);border:1px solid var(--line);color:var(--ink-2)}
.lib-note .btn{margin-top:.3rem;white-space:normal;text-align:center}
#synthCard{margin-top:1.5rem}
@media (max-width:1100px){ .wiz.lit{grid-template-columns:1fr} .wiz.lit .advisor{grid-column:auto} }
@media (max-width:760px){ .lit-filters{grid-template-columns:1fr 1fr} .lit-q{flex-direction:column} }

/* citation guard + similarity report */
.cite-list{margin:.4rem 0 .8rem;padding-left:1.2rem;font-size:.9rem}
.cite-list li{margin:.3rem 0}
.cite-list.bad li::marker{color:var(--danger)}
.cite-list.warn li::marker{color:#C77700}
.guard-card{border-left:4px solid var(--accent)}
.wiz.chk{grid-template-columns:minmax(0,1fr) 320px}
.rep-head{display:flex;justify-content:space-between;gap:1.5rem;align-items:center;flex-wrap:wrap;border-bottom:2px solid var(--ink);padding-bottom:1rem;margin-bottom:1rem}
.rep-head h2{margin:.2rem 0}
.gauge{--c:var(--accent);width:150px;height:150px;border-radius:50%;display:grid;place-items:center;align-content:center;text-align:center;
  background:radial-gradient(closest-side,var(--surface) 76%,transparent 77%),conic-gradient(var(--c) calc(var(--v)*1%),var(--line) 0)}
.gauge.fail{--c:var(--danger)}
.gauge-num{font-size:1.7rem;font-weight:700;line-height:1}
.gauge-lbl{font-size:.75rem;color:var(--ink-2);margin-top:.3rem}
.verdict{font-weight:600;padding:.6rem .9rem;border-radius:var(--radius)}
.verdict.pass{background:var(--accent-soft);color:var(--accent)}
.verdict.fail{background:#FDECEA;color:var(--danger)}
.rep-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:.6rem;margin:1rem 0 1.4rem}
.stat{border:1px solid var(--line);border-radius:var(--radius);padding:.7rem;text-align:center}
.stat b{display:block;font-size:1.5rem}
.stat span{font-size:.78rem;color:var(--ink-2)}
.stat.bad{border-color:var(--danger)} .stat.bad b{color:var(--danger)}
.stat.warn{border-color:#E8B44A} .stat.warn b{color:#B36B00}
.sw{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:.4rem;vertical-align:middle}
.hl-doc{max-height:none;border:1px solid var(--line);border-radius:var(--radius);padding:1rem 1.2rem;font-size:.98rem}
.hl-doc mark{padding:0 1px}
.rep-note{margin-top:1rem;border-top:1px dashed var(--line);padding-top:.8rem}
.akara ol{padding-left:1.1rem;margin:.3rem 0 .8rem}
.mini tr.cur td{font-weight:700}
@media (max-width:1100px){ .wiz.chk{grid-template-columns:1fr} .wiz.chk .advisor{grid-column:auto} .rep-grid{grid-template-columns:repeat(3,1fr)} }
@media print{ .no-print,.advisor{display:none!important} .wiz.chk{display:block} .report{border:0} .hl-doc{border:0;padding:0}
  .report mark{-webkit-print-color-adjust:exact;print-color-adjust:exact} }