:root{
  --bg:#faf6f0; --card:#fff; --ink:#2b2320; --muted:#8a7d72;
  --line:#e6ddd2; --accent:#8b1e2d; --accent2:#c8963e;
  --good:#2f7d4f; --good-bg:#e8f4ec; --bad:#a33227; --bad-bg:#f8ebe8;
  --shadow:0 1px 3px rgba(60,40,20,.08),0 4px 16px rgba(60,40,20,.05);
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans",Arial,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.5;font-size:15px}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}

.app-header{background:linear-gradient(135deg,#7a1622,#a8243a);color:#fff;padding:18px 16px 14px;text-align:center}
.app-header h1{margin:0;font-size:20px;font-weight:700;letter-spacing:.2px}
.app-header .badge{font-size:11px;background:rgba(255,255,255,.2);padding:2px 8px;border-radius:20px;vertical-align:middle;font-weight:500}
.app-header .subtitle{margin:6px 0 0;font-size:12px;opacity:.9}

.tabs{display:flex;flex-wrap:wrap;gap:2px;background:#6c1420;padding:0 8px;justify-content:center;position:sticky;top:0;z-index:10;box-shadow:var(--shadow)}
.tab{color:#f3e4d8;padding:10px 14px;font-size:14px;white-space:nowrap;border-bottom:3px solid transparent}
.tab:hover{background:rgba(255,255,255,.08);text-decoration:none}
.tab.active{color:#fff;border-bottom-color:var(--accent2);font-weight:600}

.container{max-width:920px;margin:0 auto;padding:16px}
h2{font-size:19px;margin:6px 0 14px}
h3{font-size:15px;margin:0 0 10px;color:var(--accent)}

.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:14px;box-shadow:var(--shadow)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:640px){.grid2{grid-template-columns:1fr}}

table.kv{width:100%;border-collapse:collapse}
table.kv th{text-align:left;color:var(--muted);font-weight:500;padding:5px 8px 5px 0;vertical-align:top;white-space:nowrap;width:38%}
table.kv td{padding:5px 0;vertical-align:top}
table.kv tr+tr{border-top:1px solid var(--line)}

.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{display:inline-block;background:#f0e8dd;color:var(--ink);padding:3px 9px;border-radius:14px;font-size:13px;border:1px solid var(--line)}
.chip small{color:var(--muted)}
.chip.good{background:var(--good-bg);color:var(--good);border-color:#cfe6d6}
.chip.bad{background:var(--bad-bg);color:var(--bad);border-color:#f0d4cf}
.muted{color:var(--muted);font-size:13px}
.hl{color:var(--accent2)}
.good-card h3{color:var(--good)} .bad-card h3{color:var(--bad)}

.label{border-radius:8px;padding:9px 12px;font-size:13px;margin:14px 0}
.label.warn{background:#fdf3e3;border:1px solid #f0d9a8;color:#8a5a12}
.label.info{background:#eef2fb;border:1px solid #cdd8f0;color:#2f4a86}

.btn{display:inline-block;background:#fff;border:1px solid var(--line);color:var(--ink);
  padding:8px 14px;border-radius:9px;font-size:14px;cursor:pointer;text-decoration:none}
.btn:hover{background:#f5efe7;text-decoration:none}
.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn.primary:hover{background:#761621}

.daynav{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:16px}
.pickform{display:flex;gap:6px}
input[type=date],input[type=text],input[type=number],select{
  padding:8px 10px;border:1px solid var(--line);border-radius:9px;font-size:14px;background:#fff;color:var(--ink);font-family:inherit}
input:focus,select:focus{outline:2px solid var(--accent2);outline-offset:-1px}

.form{display:flex;flex-direction:column;gap:12px;max-width:460px}
.field{display:flex;flex-direction:column;gap:5px}
.field label{font-size:13px;color:var(--muted);font-weight:500}
.form .btn.primary{align-self:flex-start;margin-top:4px}

.results{display:flex;flex-direction:column;gap:12px}
.day-result{position:relative;border-left:4px solid var(--accent2)}
.day-result .rank{position:absolute;top:12px;right:14px;background:var(--accent2);color:#fff;font-weight:700;
  width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px}
.reasons{margin:6px 0 0;padding-left:18px;font-size:13.5px}
.reasons li{margin:2px 0}

/* la so grid */
.laso-wrap{overflow-x:auto;margin-bottom:14px}
.laso-grid{border-collapse:collapse;width:100%;min-width:560px;table-layout:fixed}
.laso-grid td.palace{border:1px solid var(--line);background:var(--card);vertical-align:top;height:120px;width:25%;padding:0}
.laso-grid td.center-cell{background:#fbf5ec;border:1px solid var(--accent2);padding:12px;vertical-align:top}
.palace-cell{display:flex;flex-direction:column;justify-content:space-between;height:100%;padding:7px 8px}
.palace-top{font-size:12px}
.stars.major{font-weight:700;color:var(--accent);line-height:1.35}
.stars.vcd{color:var(--muted);font-style:italic}
.stars.minor{color:#5a6b7a;margin-top:3px;font-size:11.5px}
.palace-bottom{display:flex;justify-content:space-between;align-items:flex-end;margin-top:6px;
  border-top:1px dashed var(--line);padding-top:4px}
.palace-name{font-weight:600;font-size:12.5px}
.palace-ganzhi{font-size:11px;color:var(--muted)}
.body-mark{color:var(--accent2);font-size:10px}
.center-info h3{margin-top:0}
.center-info table.kv th{width:42%;font-size:12.5px}
.center-info table.kv td{font-size:12.5px}

/* bat tu */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;text-align:center}
.pillar{border:1px solid var(--line);border-radius:10px;padding:10px 6px;background:#fbf7f1}
.pillar-label{font-size:12px;color:var(--muted)}
.pillar-cc{font-size:17px;font-weight:700;color:var(--accent);margin:4px 0}
.pillar-elem{font-size:12px}
.pillar-sound{font-size:11px;color:var(--muted);margin-top:2px}
.elem-row{display:flex;align-items:center;gap:8px;margin:5px 0}
.elem-name{width:44px;font-size:13px}
.elem-bar{flex:0 0 auto;background:#efe7db;border-radius:6px;height:16px;width:150px;overflow:hidden}
.elem-fill{display:block;height:100%;min-width:2px}
.e-Kim{background:#c8963e}.e-Mộc{background:#2f7d4f}.e-Thủy{background:#2f5f9e}.e-Hỏa{background:#a33227}.e-Thổ{background:#9a7b4f}
.elem-val{font-weight:600;font-size:13px}

.verdict-card{border-left:5px solid var(--muted)}
.verdict-card.good{border-left-color:var(--good);background:var(--good-bg)}
.verdict-card.bad{border-left-color:var(--bad);background:var(--bad-bg)}
.verdict{font-weight:700}

.app-footer{text-align:center;padding:18px 12px 26px;color:var(--muted);font-size:13px}
.app-footer b{color:var(--accent)}