/* Metal Price Monitor v2.1.0 — compact, traditional business-software interface */
:root{--bg:#e8ebef;--ink:#1d2731;--sub:#526272;--line:#aebbc8;--line-dark:#8393a2;--card:#fff;--primary:#244b70;--action:#345b7d;--muted:#e2e8ed}
*{box-sizing:border-box}
html{font-family:Arial,"Meiryo","Yu Gothic",sans-serif;color:var(--ink);scroll-behavior:smooth}
body{margin:0;background:var(--bg);font-size:13px}
button,select{font:inherit}button:focus-visible,select:focus-visible,a:focus-visible{outline:2px solid #296baa;outline-offset:2px}
.shell{max-width:1180px;margin:auto;padding:0 18px}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:17px 4px 14px;border-bottom:3px double #6e8397;background:transparent}
.brand{display:block;min-width:0}
.brand-title{font-size:23px;font-weight:700;letter-spacing:0;line-height:1.15;white-space:normal}
.brand-sub{font-size:11px;color:var(--sub);margin-top:5px}
.top-actions{display:flex;align-items:center;gap:16px}
.status{font-size:11px;color:var(--sub);display:flex;align-items:center;gap:7px;white-space:nowrap}
.dot{display:inline-block;width:9px;height:9px;border:1px solid #817440;background:#d1be73;border-radius:0}
.status.good .dot{background:#6f9e78;border-color:#3c724b}.status.fail .dot{background:#cb6b5a;border-color:#a24941}
.btn{cursor:pointer;font-size:12px;font-weight:600;border-radius:2px;padding:8px 15px;line-height:1.3;box-shadow:inset 0 1px 0 #ffffffa8;transition:none}
.btn:disabled{opacity:.55;cursor:wait}
.btn-outline{border:1px solid #8597aa;background:linear-gradient(#fafbfc,#dce3e9);color:#243d54}
.btn-outline:hover{background:linear-gradient(#fff,#e8eff5)}
.btn-primary{border:1px solid #23455f;background:linear-gradient(#486d8a,#31516b);color:white;box-shadow:inset 0 1px 0 #ffffff3d}
.btn-primary:hover{background:#2d4e69}
.report-strip{margin:16px 0 0;background:#f8f9fa;border:1px solid var(--line);border-left:4px solid #4b667e;display:flex;align-items:center;justify-content:space-between;gap:15px;padding:11px 14px}
.report-name{font-size:17px;font-weight:700;color:#233d56}
.report-name span{font-size:12px;font-weight:400;color:var(--sub)}
.report-meta{text-align:right;font-size:11px;color:var(--sub);line-height:1.6}
.report-meta strong{font-weight:700;color:var(--ink)}
.disclaimer{margin:10px 0 22px;border:1px solid #c5cacf;background:#f2f3f4;padding:9px 12px;color:#49535d;font-size:11px;line-height:1.6}
.section-heading{display:flex;justify-content:space-between;align-items:center;gap:14px;border-bottom:1px solid #8e9eae;margin:0 0 0;padding:0 0 7px}
.section-heading h2{margin:0;font-size:15px;letter-spacing:0;color:#203d56}
.minor{font-size:11px;color:var(--sub);line-height:1.5}
.card-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;border:1px solid var(--line-dark);margin-top:9px;background:#fff}
.metal-card{min-width:0;appearance:none;border:0;border-right:1px solid var(--line);background:#fff;cursor:pointer;padding:11px 11px 10px;text-align:left;position:relative;color:inherit;box-shadow:none;border-radius:0;transition:none}
.metal-card:last-child{border-right:0}.metal-card:hover{background:#f2f6f9}.metal-card.active{background:#e5edf5;box-shadow:inset 0 0 0 2px #7898b5}
.metal-card::before{content:none}
.card-top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:5px;border-bottom:1px solid #ccd5de;padding-bottom:8px}
.metal-name{font-size:14px;font-weight:700;color:#223b51}
.card-tag{font-size:10px;color:#5b6873;background:#ebedef;border:1px solid #d1d7dd;padding:2px 4px;border-radius:0;white-space:normal}
.card-value{font-size:clamp(20px,2vw,25px);font-weight:700;white-space:nowrap;letter-spacing:-.6px;margin:13px 0 5px;font-variant-numeric:tabular-nums}
.card-value small{font-size:11px;color:#4e5e6b;font-weight:400;letter-spacing:0}
.card-date{font-size:11px;color:var(--sub);min-height:17px}
.card-change{font-size:11px;margin-top:11px;display:flex;align-items:center;gap:5px}
.up{color:#a74a35}.down{color:#246e8f}.flat{color:#687784}
.card-source{font-size:10px;color:#586a78;margin-top:12px;padding-top:8px;border-top:1px dotted #becbd4;min-height:25px;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}
.placeholder{grid-column:1/-1;padding:24px;text-align:center;color:var(--sub)}
.chart-panel,.info-panel{margin-top:18px;border:1px solid var(--line);background:#fff;padding:14px;border-radius:0;box-shadow:none;min-width:0}
.chart-panel>.section-heading{margin-bottom:10px}.chart-heading{align-items:center}.chart-heading .minor{margin:3px 0 0}
.chart-options{display:flex;align-items:center;gap:10px}
.field{display:flex;flex-direction:row;align-items:center;gap:7px;font-size:11px;color:var(--ink);font-weight:400}
select{border:1px solid #8796a4;border-radius:1px;background:#fff;box-shadow:inset 0 1px 2px #0000000d;padding:6px 8px;color:var(--ink);font-size:12px;min-width:105px}
.chart-tile{border:1px solid #aebbc8;background:#fff;border-radius:0;overflow:hidden}
.chart-summary{display:flex;gap:0;border-bottom:1px solid var(--line);background:#ecf0f3;padding:0}
.chart-summary>div{display:flex;flex-direction:column;gap:7px;flex:1;padding:9px 13px;border-right:1px solid var(--line)}
.chart-summary>div:last-child{border-right:0}
.summary-label{color:#455666;font-size:11px}
.summary-price{font-size:20px;font-weight:700;letter-spacing:0;font-variant-numeric:tabular-nums}
.summary-change,.summary-count{font-size:17px;font-variant-numeric:tabular-nums}
.chart-stage{position:relative;padding:7px 10px 0;min-height:270px;background:#fff}
#price-chart{width:100%;height:auto;max-height:350px;display:block;overflow:visible}
.chart-tooltip{position:absolute;z-index:2;background:#fff;border:1px solid #536c81;box-shadow:2px 2px 0 #96a9b9;color:var(--ink);padding:6px 9px;border-radius:0;pointer-events:none;font-size:11px;white-space:nowrap;top:20px;left:20px}
.note{padding:0 15px 12px;margin:0;font-size:11px;color:var(--sub);line-height:1.6}
.data-tools{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:12px}
.bottom-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
.info-panel>.section-heading{margin-bottom:4px}
.method{display:flex;align-items:flex-start;gap:9px;border-bottom:1px dotted #bdcbd5;padding:10px 0}
.method:last-child{border:0}
.method-bullet{width:6px;height:6px;margin-top:5px;flex:0 0 auto;background:var(--metal);border-radius:0}
.method-name{font-size:12px;font-weight:700}
.method-description{color:var(--sub);font-size:11px;line-height:1.6;margin-top:4px}
.fx-note,.sources-notice{margin-top:12px;background:#f2f4f6;border:1px solid #cfd6db;padding:9px 10px;font-size:11px;line-height:1.65;color:#4f5e6e;border-radius:0}
.source{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;border-bottom:1px dotted #bdcbd5;padding:10px 0}
.source:last-child{border:0}
.source a{font-size:12px;font-weight:700;color:#164d7f;text-decoration:underline}
.source a:hover{color:#0c2c48}
.source p{margin:4px 0 0;font-size:11px;color:var(--sub);line-height:1.5;overflow-wrap:anywhere}
.status-chip{border:1px solid #83a48b;background:#e6efe8;color:#305e3a;font-size:10px;padding:2px 6px;border-radius:0;white-space:nowrap}
.status-chip.bad{border-color:#c7968b;background:#f7e8e5;color:#933f33}
footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #afbac5;margin:20px 0 0;padding:13px 2px 18px;font-size:10px;color:#697785;line-height:1.65}
footer div:first-child{font-weight:700;color:#455969}footer span{font-weight:400}
@media(max-width:1040px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.metal-card{border-bottom:1px solid var(--line)}.metal-card:nth-child(3n){border-right:0}.metal-card:last-child{border-bottom:0;border-right:1px solid var(--line)}}
@media(max-width:700px){.shell{padding:0 10px}.topbar{padding:12px 2px}.brand-title{font-size:18px}.brand-sub{font-size:10px}.top-actions{gap:8px}.top-actions .status{display:none}.btn{padding:7px 10px;font-size:11px}.report-strip{margin-top:10px;padding:10px;flex-direction:column;align-items:flex-start;gap:6px}.report-name{font-size:14px}.report-name span{font-size:11px}.report-meta{text-align:left;font-size:10px}.disclaimer{margin-bottom:16px}.section-heading{align-items:flex-start;flex-wrap:wrap;gap:5px}.section-heading h2{font-size:14px}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.metal-card{padding:10px 9px;border-bottom:1px solid var(--line)}.metal-card:nth-child(3n){border-right:1px solid var(--line)}.metal-card:nth-child(2n){border-right:0}.metal-card:last-child{border-bottom:0;border-right:1px solid var(--line)}.card-value{font-size:22px}.card-tag{font-size:9px}.chart-panel,.info-panel{padding:10px;margin-top:14px}.chart-heading{align-items:flex-start}.chart-options{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:8px}.field{display:flex;flex-direction:column;align-items:stretch;gap:3px}.field select{width:100%;min-width:0}.chart-summary>div{padding:8px 7px}.summary-price{font-size:16px}.summary-change,.summary-count{font-size:14px}.chart-stage{padding:3px 0;min-height:180px}.bottom-grid{grid-template-columns:1fr;gap:0}.data-tools .btn{flex:1;min-width:140px}.data-tools .minor{width:100%}footer{flex-direction:column;gap:4px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}