.tool-hero { padding: 65px 0 35px; }
.tool-hero h1 { font-size: clamp(32px, 4vw, 52px); }
.tool-hero.compact { padding-top: 22px; }
.tool-hero.compact .eyebrow { margin-top: 22px; margin-bottom: 12px; }
.tool-hero .hero-description { max-width: 690px; }
.tool-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 25px; }
.tool-tags span, .tool-category { color: #356b66; background: #e8f3ef; padding: 5px 13px; border: 1px solid #d2e5de; border-radius: 20px; font-size: 13px; }
.tool-list-card { display: grid; grid-template-columns: 1fr 1.2fr; align-items: center; gap: 24px; }
.tool-card-art { background: linear-gradient(135deg, #eff8f3, #d3e9e3); border-radius: 21px; }
.tool-card-copy { padding: 25px; }
.tool-card-copy h3 { font-size: 28px; margin-block: 15px 10px; }
.tool-card-copy p, .panel-description { color: var(--muted); }
.inline-link { color: var(--accent); text-decoration: underline; text-underline-offset: 4px; }
.calculator-grid { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr); gap: 24px; align-items: stretch; }
.calculator-panel, .result-panel { min-width: 0; padding: 28px; border-radius: 26px; background: linear-gradient(135deg, #fff, #f8fbfd); border: 1px solid #d8e3eb; box-shadow: var(--shadow), inset 0 2px 0 white; }
.calculator-panel h2 { font-size: 23px; }
.panel-heading { display: flex; gap: 18px; justify-content: space-between; align-items: center; }
.count-label { display: grid; gap: 3px; font-size: 12px; color: var(--muted); }
select, input, button { font: inherit; }
select, input { color: var(--text); background: #fff; border: 1px solid #b8cbd9; border-radius: 12px; padding: 11px 12px; min-height: 48px; width: 100%; min-width: 0; font-size: 16px; }
select:focus-visible, input:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
button { cursor: pointer; }
.resistor-stage { position: relative; isolation: isolate; background: radial-gradient(ellipse at center, #e7f1ee, #f4f8fa 70%); margin-block: 24px; padding: 42px 20px 19px; border: 1px solid #dce8e6; border-radius: 20px; text-align: center; overflow: hidden; }
.resistor-wire { position: absolute; z-index: -1; top: 80px; left: 6%; right: 6%; height: 8px; background: linear-gradient(#b0bbc8, #eef4f9 40%, #9daab7); }
.resistor-body { position: relative; display: flex; align-items: stretch; justify-content: center; gap: 14px; width: 240px; max-width: 90%; height: 82px; padding: 0 20px; margin: 0 auto 20px; border-radius: 25px; border: 1px solid #baa782; background: linear-gradient(#fff0d2, #e5cfa8 45%, #c0a880); box-shadow: 0 14px 16px -12px #42584990; overflow: hidden; }
.resistor-body::after { content: ''; position: absolute; inset: 8px 6px auto; height: 15px; border-radius: 20px; background: linear-gradient(#ffffff7a, transparent); pointer-events: none; }
.resistor-band { width: 15px; flex-shrink: 0; box-shadow: inset 2px 0 2px #ffffff33, inset -2px 0 2px #00000026; }
.tolerance-band { margin-left: 23px; width: 12px; }
#band-description { font-size: 15px; color: #455c58; }
.read-direction { font-size: 12px; color: var(--muted); }
.band-selectors { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 12px; }
.band-field { display: grid; gap: 7px; font-size: 13px; color: var(--muted); }
.band-field select { padding-inline: 7px; }
.example-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 24px; font-size: 13px; color: var(--muted); }
.example-row button { min-height: 44px; border: 1px solid #d3dfeb; border-radius: 22px; background: #f2f6fb; color: var(--accent); padding: 8px 13px; }
.result-panel { background: linear-gradient(140deg, #eaf5f1, #f9fcfd 60%, #e9f0fa); display: flex; flex-direction: column; justify-content: center; }
.result-value { font-size: clamp(32px, 3.6vw, 48px); font-weight: 650; line-height: 1.25; color: #285d59; overflow-wrap: anywhere; }
.result-tolerance { color: #47766e; font-size: 24px; margin-top: 8px; }
.result-panel dl { border-top: 1px solid #c9dfd9; padding-top: 20px; margin-top: 24px; }
.result-panel dt { font-size: 13px; color: var(--muted); }
.result-panel dd { margin: 5px 0 17px; font-size: 17px; overflow-wrap: anywhere; }
.result-note { font-size: 13px; color: var(--muted); }
.secondary-grid { margin-top: 24px; }
.reverse-inputs { display: grid; grid-template-columns: 1.2fr .8fr 1fr; gap: 12px; margin-block: 20px; }
.reverse-inputs label { min-width: 0; display: grid; gap: 6px; color: var(--muted); font-size: 14px; }
#form-message { margin-top: 12px; font-size: 14px; color: #684221; }
.reading-guide p:not(.eyebrow) { margin-top: 14px; font-size: 15px; color: var(--muted); }
.reference-section summary { cursor: pointer; font-size: 18px; min-height: 48px; padding: 8px 0; }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin-top: 15px; text-align: left; }
th, td { border-bottom: 1px solid var(--border); padding: 10px; white-space: nowrap; }
.swatch { display: inline-block; width: 16px; height: 16px; border: 1px solid #8996a5; border-radius: 50%; margin-right: 10px; vertical-align: middle; }
.reference-note { color: var(--muted); font-size: 13px; margin-top: 18px; }
.tools-footer { margin-top: 30px; }
@media(max-width: 900px) { .calculator-grid { grid-template-columns: 1fr; } .result-panel { display: block; } .result-panel dl { display: grid; grid-template-columns: 1fr 1fr; gap: 5px 20px; } .result-panel dd { margin: 0; } }
@media(max-width: 700px) { .tool-hero { padding-top: 40px; } .tool-list-card { grid-template-columns: 1fr; gap: 0; } .tool-card-copy { padding: 22px 16px; } .calculator-panel, .result-panel { padding: 20px 16px; border-radius: 22px; } .panel-heading { align-items: flex-start; gap: 10px; } .panel-heading h2 { font-size: 21px; padding-top: 12px; } .band-selectors { grid-template-columns: repeat(2, minmax(0, 1fr)); } .reverse-inputs { grid-template-columns: 1.1fr 1fr; } .reverse-inputs label:last-child { grid-column: 1 / -1; } .resistor-body { gap: 10px; padding-inline: 14px; } .tolerance-band { margin-left: 14px; } .result-panel dl { display: block; } .result-panel dd { margin-bottom: 15px; } }
@media (forced-colors: active) { .calculator-panel, .result-panel, select, input, button { border: 1px solid CanvasText; } .resistor-band, .swatch { forced-color-adjust: none; } }