:root{
  --blue:#2E9BD6; --blue-d:#1B7FB5; --blue-l:#E8F4FD; --blue-xl:#F5FAFE;
  --ink:#12303F; --muted:#7492A3; --line:#DCEAF4; --white:#fff;
  --ok:#17A67B; --bad:#E2574C; --r:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Noto Sans Thai","Inter",-apple-system,"Segoe UI",sans-serif;
  background:var(--blue-xl);color:var(--ink);padding-bottom:48px;-webkit-font-smoothing:antialiased}

.topbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;
  gap:12px;padding:14px 18px;background:var(--white);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px}
.logo{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;font-size:20px;
  color:#fff;background:transparent}
h1{font-size:17px;font-weight:700}
.sub{font-size:12px;color:var(--muted)}
.tools{display:flex;gap:8px}
.chip{border:1px solid var(--line);background:var(--white);color:var(--blue-d);font-weight:700;
  padding:8px 14px;border-radius:999px;cursor:pointer;font-size:13px;transition:.15s;margin-right: 4px;}
.chip:hover{background:var(--blue-l)}

.menu{position:absolute;right:18px;top:70px;z-index:30;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:6px;display:flex;flex-direction:column;min-width:210px}
.menu button{border:0;background:none;text-align:left;padding:11px 14px;border-radius:10px;
  cursor:pointer;font-size:14px;color:var(--ink);font-family:inherit}
.menu button:hover{background:var(--blue-l)}
.menu .danger{color:var(--bad)}
.hidden{display:none}

/*.tabs{display:flex;gap:6px;padding:12px 18px;overflow-x:auto;position:sticky;top:69px;z-index:15;
  background:var(--blue-xl)}
.tab{flex:1;min-width:96px;border:0;background:var(--white);border:1px solid var(--line);color:var(--muted);
  padding:11px 8px;border-radius:50px;font-size:13.5px;font-weight:600;cursor:pointer;
  white-space:nowrap;font-family:inherit;transition:.18s}
.tab.active{background:var(--blue);border-color:var(--blue);color:#fff}*/
.tabs{
  position:fixed;
  left:0; right:0; bottom:0;
  z-index:100;
  display:flex;
  background:#fff;
  border-top:1px solid #e5e7eb;
  /* iPhone home-indicator gap */
  padding-bottom:env(safe-area-inset-bottom,0px);
  box-shadow:0 -1px 8px rgba(0,0,0,.06);
}

.tabs .tab{
  flex:1 1 0;                 /* equal width, no overflow */
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:2px;
  min-height:56px;            /* comfortable tap target */
  border:0; background:none;
  font-size:11px;
  color:#9ca3af;
  cursor:pointer;
  -webkit-tap-highlight-color:transparent;
}

.tabs .tab span{ line-height:1; }
.tabs .tab.active{ color:#2563eb; font-weight:600; }

/* keep content clear of the bar */
body{
  padding-bottom:calc(56px + env(safe-area-inset-bottom,0px));
}
main{padding:4px 18px 28px;max-width:960px;margin:0 auto}
.page{display:none;animation:fade .22s ease}
.page.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r);
  padding:18px;margin-bottom:16px}
.card-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px}
h2{font-size:15px;font-weight:700}
.btn-primary{background:var(--blue);color:#fff;border:0;padding:9px 15px;border-radius:11px;
  font-weight:700;font-size:13px;cursor:pointer;font-family:inherit;transition:.15s}
.btn-primary:hover{background:var(--blue-d)}

.table-wrap{overflow-x:auto;margin:0 -4px}
table{width:100%;border-collapse:collapse;min-width:520px}
th{font-size:12px;color:var(--muted);font-weight:600;text-align:left;padding:8px 6px;border-bottom:1px solid var(--line)}
td{padding:5px 6px;border-bottom:1px solid var(--blue-xl)}
th.num,td.num{text-align:right}

input,select{width:100%;border:1px solid var(--line);background:var(--white);border-radius:10px;
  padding:10px 12px;font-size:14px;font-family:inherit;color:var(--ink);outline:none;transition:.15s}
input:focus,select:focus{border-color:var(--blue)}
input.num{text-align:right}
.del{border:0;background:var(--blue-xl);color:var(--bad);width:34px;height:34px;border-radius:10px;
  cursor:pointer;font-size:15px;line-height:1}
.del:hover{background:#FDECEA}

.item-list{display:flex;flex-direction:column;gap:12px}
.item{border:1px solid var(--line);border-radius:14px;padding:14px;background:var(--blue-xl)}
.item-top{display:flex;gap:8px;align-items:center;margin-bottom:10px}
.item-top input{flex:1;font-weight:600}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px}
.f label{display:block;font-size:11.5px;color:var(--muted);margin-bottom:5px;font-weight:600}
.item-sum{margin-top:10px;text-align:right;font-size:13px;color:var(--blue-d);font-weight:700}

.total-bar{display:flex;justify-content:space-between;align-items:center;margin-top:16px;padding:14px 16px;
  background:var(--blue-l);border-radius:12px;font-size:14px;font-weight:600}
.total-bar b{font-size:19px;color:var(--blue-d)}

.hero-card{background:linear-gradient(135deg,var(--blue),var(--blue-d));color:#fff;border-radius:20px;
  padding:30px 20px;text-align:center;margin-bottom:16px}
.hero-label{font-size:13px;opacity:.9}
.hero-card h2{font-size:34px;font-weight:800;margin:8px 0 4px;letter-spacing:-.5px}
.hero-sub{font-size:13px;opacity:.9}

.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:16px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px}
.kpi span{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
.kpi b{font-size:19px}
.pos{color:var(--ok)} .neg{color:var(--bad)}
tr.hit td{background:#E6F7F1;font-weight:700;color:var(--ok)}
@media(max-width:520px){.hero-card h2{font-size:28px}}
.sug,.btn-ghost{margin: 10px 10px 0 0;padding: 2px 10px;font-family:"Noto Sans Thai";border-radius: 30px;border:0.5px solid}
/* suggestion strip under each list */
.chips-bar{margin-top:18px;padding-top:16px;border-top:1px dashed #d8dee7;
  display:flex;flex-wrap:wrap;gap:12px 10px;justify-content:center}

/* already-added suggestion */
.sug.used{opacity:.38;cursor:default;pointer-events:none;
  border-style:solid;filter:grayscale(1)}
/* minimal confirm dialog */
.modal{position:fixed;inset:0;z-index:80;display:flex;align-items:center;justify-content:center;
  background:rgba(15,23,42,.45);padding:20px}
.modal.hidden{display:none}
.modal-card{background:#fff;border-radius:16px;padding:24px 20px 16px;width:100%;max-width:320px;
  box-shadow:0 18px 50px rgba(0,0,0,.22);text-align:center;animation:pop .15s ease-out}
@keyframes pop{from{opacity:0;transform:scale(.94)}to{opacity:1;transform:none}}
.modal-card p{margin:0 0 18px;font-size:.96rem;line-height:1.5;color:#1f2937}
.modal-actions{display:flex;gap:10px}
.modal-actions button{flex:1;padding:11px 12px;border-radius:10px;font-size:.9rem;cursor:pointer}
.btn-cancel{border:1px solid #d8dee7;background:#fff;color:#475569}
.btn-danger{border:1px solid #e5484d;background:#e5484d;color:#fff;font-weight:600}

/* % of revenue hint */
.note-pct{margin-top:7px;font-size:.76rem;line-height:1.4;color:#d92d20}
/* ---------- guide accordion body ---------- */
.guide{margin:0 0 0 28px}

.guide-body{
  padding:14px 18px 16px 18px;      /* ← the breathing room */
  background:#f7f9fc;
  border:1px solid #e4e9f0;
  border-top:0;
  border-radius:0 0 12px 12px;
}

.guide-body ul,
.guide-body ol{
  margin:0;
  padding-inline-start:22px;         /* keeps bullets off the edge */
  list-style-position:outside;
}

.guide-body li{
  margin:0 0 8px;
  line-height:1.55;
  padding-left:2px;
}
.guide-body li:last-child{margin-bottom:0}

/* the clickable header */
.guide-head{
  padding:12px 16px;
  border-radius:12px;
}
.chart-card{padding:14px 14px 10px}
.chart-head{display:flex;justify-content:space-between;align-items:center;
  flex-wrap:wrap;gap:8px;margin-bottom:6px}
.chart-head h3{margin:0;font-size:15px;font-weight:700}
.chart-legend{display:flex;gap:14px;font-size:11.5px;color:#6B7280}
.chart-legend span{display:flex;align-items:center;gap:5px}
.chart-legend i{width:16px;height:0;border-top:2.6px solid #1F9D6B;border-radius:2px}
.chart-legend i.lg-dash{border-top:2px dashed #C1432B}
.bep-chart{width:100%;height:auto;display:block;overflow:visible}
.chart-empty{margin:18px 0;text-align:center;color:#9aa3af;font-size:13px}
.hidden{display:none}