:root { color-scheme: dark; --black:#050506; --black-2:#09090b; --surface:#111216; --white:#f5f5f7; --muted:#a1a1a6; --dim:#6e6e73; --line:rgba(255,255,255,.14); --line-strong:rgba(255,255,255,.26); --accent:#58a6c6; }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; background:var(--black); }
body { margin:0; overflow-x:hidden; background:var(--black); color:var(--white); font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Helvetica Neue",Inter,"Noto Sans SC","Microsoft YaHei",sans-serif; line-height:1.5; }
a { color:inherit; text-decoration:none; }
img { display:block; max-width:100%; }
.skip-link { position:fixed; top:-60px; left:16px; z-index:100; padding:10px 14px; background:var(--white); color:var(--black); }
.skip-link:focus { top:12px; }
.site-header { position:fixed; inset:0 0 auto; z-index:50; height:58px; display:grid; grid-template-columns:1fr auto 1fr; align-items:center; padding:0 3.4vw; background:rgba(5,5,6,.68); border-bottom:1px solid rgba(255,255,255,.08); backdrop-filter:saturate(150%) blur(18px); }
.wordmark { width:max-content; font-size:13px; font-weight:700; letter-spacing:.19em; }
.site-header nav { display:flex; gap:30px; font-size:12px; font-weight:560; }
.nav-orcid { justify-self:end; font-size:12px; font-weight:650; }
.site-header a:hover, footer a:hover { color:var(--accent); }
.hero { position:relative; min-height:94svh; display:flex; flex-direction:column; justify-content:space-between; overflow:hidden; padding:0 7vw; border-bottom:1px solid rgba(255,255,255,.07); }
.hero::before { content:""; position:absolute; z-index:0; inset:0; background:radial-gradient(ellipse at 75% 56%,rgba(88,166,198,.1),transparent 42%),linear-gradient(110deg,#050506 0%,#050506 48%,#090b0e 100%); }
.hero-field { position:absolute; z-index:0; inset:0; overflow:hidden; opacity:.22; }
.hero-field::before { content:""; position:absolute; width:min(68vw,980px); aspect-ratio:1.3; right:-8vw; top:11vh; background:repeating-linear-gradient(134deg,transparent 0 54px,rgba(255,255,255,.06) 55px 56px),repeating-linear-gradient(46deg,transparent 0 76px,rgba(255,255,255,.035) 77px 78px); transform:perspective(800px) rotateY(-13deg) rotateZ(-4deg); mask-image:radial-gradient(ellipse,#000 20%,transparent 72%); }
.hero-field span { position:absolute; display:block; border:1px solid rgba(255,255,255,.16); background:rgba(255,255,255,.025); box-shadow:inset 0 0 60px rgba(88,166,198,.04); clip-path:polygon(18% 0,82% 6%,100% 62%,68% 100%,9% 83%,0 25%); }
.hero-field span:nth-child(1) { width:360px; height:290px; right:10vw; top:20vh; transform:rotate(12deg); }
.hero-field span:nth-child(2) { width:290px; height:250px; right:29vw; top:43vh; transform:rotate(-18deg); }
.hero-field span:nth-child(3) { width:240px; height:210px; right:3vw; top:55vh; transform:rotate(28deg); }
.hero-field span:nth-child(4) { width:190px; height:180px; right:32vw; top:11vh; transform:rotate(45deg); }
.hero-portrait { position:absolute; z-index:1; inset:74px 2.5vw 28px auto; width:min(45vw,690px); overflow:hidden; }
.hero-portrait::after { content:""; position:absolute; inset:0; background:linear-gradient(90deg,#050506 0%,rgba(5,5,6,.58) 10%,transparent 31%),linear-gradient(0deg,#050506 0%,transparent 20%); pointer-events:none; }
.hero-portrait img { width:100%; height:100%; object-fit:cover; object-position:50% 20%; filter:grayscale(.18) brightness(.9) contrast(1.04); }
.hero-copy { position:relative; z-index:2; width:min(720px,58vw); padding-top:max(104px,13vh); }
.eyebrow { margin:0 0 15px; color:var(--muted); font-size:11px; font-weight:650; letter-spacing:.12em; text-transform:uppercase; }
.hero h1 { margin:0; max-width:860px; font-size:clamp(70px,10vw,148px); font-weight:540; letter-spacing:0; line-height:.86; }
.hero-focus { display:grid; gap:7px; max-width:700px; margin-top:27px; }
.hero-focus p { margin:0; color:rgba(245,245,247,.9); font-size:clamp(15px,1.35vw,20px); font-weight:430; line-height:1.42; }
.hero-focus p::before { content:""; display:inline-block; width:16px; height:1px; margin:0 11px 5px 0; background:rgba(88,166,198,.75); }
.hero-meta { display:flex; flex-wrap:wrap; gap:10px 28px; margin-top:23px; color:var(--muted); font-size:12px; }
.hero-meta span { position:relative; }
.hero-meta span + span::before { content:""; position:absolute; left:-15px; top:7px; width:3px; height:3px; border-radius:50%; background:var(--dim); }
.hero-actions { position:relative; z-index:2; display:grid; grid-template-columns:repeat(2,minmax(210px,260px)); gap:14px; padding-bottom:52px; }
.button { min-height:44px; display:inline-flex; align-items:center; justify-content:center; border:1px solid transparent; border-radius:4px; padding:0 24px; font-size:13px; font-weight:630; }
.button-light { background:rgba(245,245,247,.95); color:#111114; }
.button-dark { background:rgba(29,29,31,.74); border-color:rgba(255,255,255,.13); backdrop-filter:blur(12px); }
.scroll-cue { position:absolute; z-index:3; bottom:13px; left:50%; width:28px; height:28px; transform:translateX(-50%); }
.scroll-cue span { position:absolute; left:9px; top:6px; width:9px; height:9px; border-right:1.5px solid var(--white); border-bottom:1.5px solid var(--white); transform:rotate(45deg); }
.section { min-height:92svh; padding:11vh 8vw; border-bottom:1px solid rgba(255,255,255,.07); }
.section-intro h2 { margin:0; max-width:900px; font-size:clamp(46px,6.3vw,92px); font-weight:530; letter-spacing:0; line-height:1.02; }
.section-intro > p:last-child { max-width:670px; margin:25px 0 0; color:var(--muted); font-size:16px; }
.research { display:grid; grid-template-columns:.82fr 1.18fr; gap:8vw; align-items:center; background:var(--black-2); }
.research-list { border-top:1px solid var(--line-strong); }
.research-list article { display:grid; grid-template-columns:58px 1fr; gap:22px; padding:27px 0; border-bottom:1px solid var(--line); }
.research-list article > span { color:var(--dim); font-size:11px; }
.research-list h3 { margin:0; font-size:21px; font-weight:540; }
.research-list p { margin:7px 0 0; max-width:650px; color:var(--muted); font-size:14px; }
.teaching { background:#0c0d10; }
.attenuation { background:#0b0c0f; }
.attenuation-intro { max-width:980px; }
.attenuation-workspace { display:grid; grid-template-columns:minmax(280px,.72fr) minmax(0,1.28fr); gap:5vw; align-items:start; margin-top:64px; }
.attenuation-form { min-width:0; }
.attenuation-form fieldset { margin:0 0 25px; padding:0 0 25px; border:0; border-bottom:1px solid var(--line); }
.attenuation-form legend { margin:0 0 18px; color:var(--white); font-size:18px; font-weight:540; }
.calculator-fields { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px 13px; }
.field { display:flex; flex-direction:column; gap:7px; color:var(--muted); font-size:11px; font-weight:620; letter-spacing:.03em; }
.field span, .output-heading label span { color:var(--dim); font-weight:500; }
.field-wide { grid-column:1 / -1; }
.field input, .field select, .output-heading input { width:100%; min-height:42px; border:1px solid var(--line-strong); border-radius:3px; padding:0 11px; outline:none; background:#15171c; color:var(--white); font:inherit; font-size:14px; font-weight:500; }
.field input:focus, .field select:focus, .output-heading input:focus { border-color:var(--accent); box-shadow:0 0 0 3px rgba(88,166,198,.16); }
.custom-material-panel { grid-column:1 / -1; display:grid; gap:15px; padding:18px; border:1px solid rgba(88,166,198,.28); background:rgba(88,166,198,.045); }
.custom-material-panel[hidden], #knownMaterialField[hidden] { display:none; }
.custom-material-options { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:13px; }
.field textarea { width:100%; resize:vertical; min-height:145px; border:1px solid var(--line-strong); border-radius:3px; padding:11px; outline:none; background:#0a0b0e; color:var(--white); font:12px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace; }
.field textarea:focus { border-color:var(--accent); box-shadow:0 0 0 3px rgba(88,166,198,.16); }
.field input[type="file"] { min-height:auto; padding:9px; font-size:11px; }
.field input[type="file"]::file-selector-button { margin-right:12px; border:0; border-radius:3px; padding:7px 11px; background:#f0f0f2; color:#111114; cursor:pointer; }
.custom-material-help, .custom-material-status { margin:0; color:var(--dim); font-size:11px; line-height:1.55; }
.custom-material-help a { color:var(--accent); }
.custom-material-status { min-height:17px; color:var(--muted); }
.calculator-actions { display:flex; gap:10px; }
.calculator-actions .button { cursor:pointer; font:inherit; }
.calculator-actions .button:disabled { cursor:not-allowed; opacity:.42; }
.calculator-status { min-height:20px; margin:14px 0 0; color:var(--muted); font-size:12px; }
.attenuation-output { min-width:0; border-top:1px solid var(--line-strong); }
.output-heading { display:flex; justify-content:space-between; gap:20px; align-items:end; padding:19px 0 17px; color:var(--muted); font-size:12px; }
.output-heading > div { display:grid; gap:4px; }
.output-heading strong { color:var(--white); font-size:18px; font-weight:520; }
.output-heading label { display:grid; gap:6px; min-width:115px; color:var(--muted); font-size:11px; font-weight:620; }
.output-heading input { min-height:34px; font-size:12px; }
.transmission-chart-wrap { position:relative; overflow:hidden; border:1px solid var(--line); background:#08090b; }
#transmissionChart { display:block; width:100%; height:auto; aspect-ratio:1.72; }
.chart-tooltip { position:absolute; pointer-events:none; padding:7px 9px; border:1px solid var(--line-strong); border-radius:3px; background:rgba(5,5,6,.94); color:var(--white); font-size:11px; line-height:1.45; white-space:nowrap; }
.transmission-metrics { display:grid; grid-template-columns:repeat(4,1fr); border-bottom:1px solid var(--line); }
.transmission-metrics > div { min-width:0; padding:20px 15px 18px 0; }
.transmission-metrics > div + div { padding-left:15px; border-left:1px solid var(--line); }
.transmission-metrics span, .transmission-metrics small { display:block; color:var(--muted); font-size:11px; }
.transmission-metrics strong { display:block; overflow:hidden; margin:7px 0 3px; color:var(--white); font-size:clamp(17px,2vw,25px); font-weight:520; text-overflow:ellipsis; white-space:nowrap; }
.transmission-metrics small { color:var(--dim); }
.equivalent-thickness { margin-top:26px; padding:24px 0 0; border-top:1px solid var(--line-strong); }
.equivalent-heading { display:flex; justify-content:space-between; gap:28px; align-items:end; margin-bottom:17px; }
.equivalent-heading span { color:var(--dim); font-size:10px; font-weight:650; letter-spacing:.12em; text-transform:uppercase; }
.equivalent-heading h2 { margin:4px 0 0; font-size:24px; font-weight:530; }
.equivalent-heading p { max-width:520px; margin:0; color:var(--muted); font-size:12px; text-align:right; }
.equivalent-reference { display:grid; grid-template-columns:auto 1fr auto; gap:14px; align-items:center; margin-bottom:14px; padding:17px 20px; border:1px solid rgba(88,166,198,.38); background:linear-gradient(100deg,rgba(88,166,198,.16),rgba(88,166,198,.035)); }
.equivalent-reference > span { color:#8ecce3; font-size:10px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; }
.equivalent-reference > strong { color:var(--white); font-size:clamp(21px,2.2vw,31px); font-weight:560; }
.equivalent-reference > small { color:var(--muted); font-size:12px; text-align:right; }
.equivalent-results { display:grid; grid-template-columns:repeat(2,1fr); border:1px solid var(--line); background:#0e1014; }
.equivalent-results > div { min-width:0; padding:22px 24px; }
.equivalent-results > div + div { border-left:1px solid var(--line); }
.equivalent-results span, .equivalent-results small { display:block; color:var(--muted); font-size:11px; }
.equivalent-results strong { display:block; margin:7px 0 5px; color:var(--white); font-size:clamp(26px,3vw,42px); font-weight:520; line-height:1.05; }
.equivalent-results small { color:var(--dim); }
.equation-strip { display:flex; flex-wrap:wrap; gap:20px; padding-top:19px; color:var(--muted); font-family:"Times New Roman",serif; font-size:17px; }
.equation-strip span + span { padding-left:20px; border-left:1px solid var(--line); }
.fieldset-note { margin:-8px 0 18px; color:var(--dim); font-size:12px; }
.penetration-answer { margin-top:18px; padding:18px; border:1px solid rgba(88,166,198,.3); border-radius:4px; background:linear-gradient(135deg,rgba(88,166,198,.1),rgba(88,166,198,.025)); }
.penetration-answer span, .penetration-answer small { display:block; color:var(--muted); font-size:11px; }
.penetration-answer strong { display:block; margin:7px 0 4px; color:var(--white); font-size:clamp(25px,2.5vw,36px); font-weight:520; line-height:1.05; }
.penetration-equivalents { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); margin-top:18px; padding-top:17px; border-top:1px solid rgba(255,255,255,.13); }
.penetration-equivalents > div { min-width:0; padding-right:15px; }
.penetration-equivalents > div + div { padding-left:15px; padding-right:0; border-left:1px solid rgba(255,255,255,.13); }
.penetration-equivalents strong { margin:6px 0 4px; font-size:clamp(18px,1.7vw,25px); }
.penetration-equivalents small { color:var(--dim); line-height:1.4; }
.calculator-page .attenuation { min-height:calc(100svh - 58px); padding:120px 5vw 80px; }
.calculator-page .attenuation-intro { max-width:1050px; }
.calculator-page .attenuation-intro h1 { margin:0; font-size:clamp(48px,6vw,86px); font-weight:530; line-height:1.02; }
.calculator-page .attenuation-intro > p:last-child { max-width:760px; margin:23px 0 0; color:var(--muted); font-size:16px; }
.calculator-page .attenuation-workspace { grid-template-columns:1fr; gap:34px; width:min(1500px,100%); margin-top:54px; }
.calculator-page .attenuation-form { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:0 28px; padding:28px; border:1px solid var(--line); background:#0e1014; }
.calculator-page .attenuation-form fieldset { min-width:0; margin:0; padding:0 0 4px; border-bottom:0; }
.calculator-page .attenuation-form fieldset + fieldset { padding-left:28px; border-left:1px solid var(--line); }
.calculator-page .calculator-actions { grid-column:1 / 3; align-self:end; margin-top:24px; padding-top:22px; border-top:1px solid var(--line); }
.calculator-page .calculator-status { grid-column:3; align-self:center; margin:24px 0 0; padding:22px 0 0 28px; border-top:1px solid var(--line); }
.calculator-page .attenuation-output { padding-top:0; }
.calculator-page .output-heading { padding:22px 0; }
.calculator-page #transmissionChart { aspect-ratio:2.28; }
.calculator-page .transmission-metrics > div { padding-top:24px; padding-bottom:23px; }
.calculator-page footer { border-top:1px solid var(--line); }
.resolution { display:flex; flex-direction:column; min-height:100svh; padding:120px 5vw 80px; background:#0b0c0f; }
.resolution-intro { order:1; }
.resolution-workspace { order:2; }
.resolution-visuals { order:3; }
.derivation-panel { order:4; }
.resolution-intro { max-width:1050px; }
.resolution-intro h1 { margin:0; font-size:clamp(27px,5vw,86px); font-weight:530; line-height:1.02; white-space:nowrap; }
.resolution-intro > p:last-child { max-width:760px; margin:23px 0 0; color:var(--muted); font-size:16px; }
.resolution-workspace { display:grid; grid-template-columns:minmax(330px,.72fr) minmax(0,1.28fr); gap:32px; width:min(1500px,100%); margin-top:54px; }
.resolution-form, .resolution-results { min-width:0; padding:28px; border:1px solid var(--line); background:#0e1014; }
.resolution-form-heading, .resolution-results-heading, .visual-heading { display:flex; justify-content:space-between; gap:24px; align-items:end; padding-bottom:20px; border-bottom:1px solid var(--line); }
.resolution-form-heading span, .resolution-results-heading span, .visual-heading span { color:var(--dim); font-size:10px; font-weight:650; letter-spacing:.12em; text-transform:uppercase; }
.resolution-form-heading h2, .resolution-results-heading h2, .visual-heading h2 { margin:4px 0 0; font-size:23px; font-weight:530; }
.resolution-form-heading p { margin:0; color:var(--dim); font-size:11px; }
.resolution-fields { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:17px 13px; padding:23px 0; }
.resolution-form .calculator-actions { padding-top:22px; border-top:1px solid var(--line); }
.resolution-form .calculator-status { margin-bottom:0; }
.calculator-status.is-error { color:#ff8b83; }
.resolution-results-heading strong { color:var(--white); font-size:clamp(25px,3vw,40px); font-weight:520; }
.resolution-metrics { display:grid; grid-template-columns:repeat(3,1fr); margin-top:23px; border-top:1px solid var(--line); border-left:1px solid var(--line); }
.resolution-metrics > div { min-width:0; padding:21px 18px; border-right:1px solid var(--line); border-bottom:1px solid var(--line); }
.resolution-metrics span { display:block; color:var(--muted); font-size:11px; }
.resolution-metrics strong { display:block; overflow:hidden; margin:8px 0 4px; color:var(--white); font-size:clamp(20px,2vw,30px); font-weight:520; text-overflow:ellipsis; white-space:nowrap; }
.resolution-metrics small { color:var(--dim); }
.resolution-metrics .metric-primary { background:linear-gradient(135deg,rgba(88,166,198,.13),rgba(88,166,198,.025)); }
.resolution-metrics .metric-primary strong { color:#b6e6f7; }
.resolution-recommendation { margin:20px 0 0; padding:17px 18px; border-left:2px solid var(--accent); background:rgba(88,166,198,.06); color:var(--muted); font-size:12px; }
.derivation-panel { width:min(1500px,100%); margin-top:32px; border:1px solid var(--line); background:#0e1014; }
.derivation-panel summary { display:flex; align-items:center; gap:16px; padding:21px 28px; cursor:pointer; list-style:none; }
.derivation-panel summary::-webkit-details-marker { display:none; }
.derivation-panel summary span { color:var(--dim); font-size:10px; font-weight:650; letter-spacing:.12em; text-transform:uppercase; }
.derivation-panel summary strong { color:var(--white); font-size:19px; font-weight:530; }
.derivation-panel summary b { margin-left:auto; color:var(--accent); font-size:24px; font-weight:300; line-height:1; transition:transform .2s ease; }
.derivation-panel[open] summary { border-bottom:1px solid var(--line); }
.derivation-panel[open] summary b { transform:rotate(45deg); }
.derivation-content { padding:28px; }
.derivation-lead { display:flex; justify-content:space-between; gap:28px; align-items:end; padding-bottom:24px; border-bottom:1px solid var(--line); }
.derivation-lead > p { max-width:620px; margin:0; color:var(--muted); font-size:13px; }
.derivation-current { display:grid; gap:6px; min-width:330px; padding-left:20px; border-left:2px solid var(--accent); }
.derivation-current span { color:var(--dim); font-size:10px; letter-spacing:.08em; text-transform:uppercase; }
.derivation-current strong { color:var(--white); font-size:12px; font-weight:500; }
.derivation-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:0 46px; }
.derivation-step { display:grid; grid-template-columns:35px 1fr; gap:17px; padding:28px 0; border-bottom:1px solid var(--line); }
.derivation-step > span { color:var(--accent); font-size:11px; font-weight:650; }
.derivation-step h3 { margin:0 0 10px; color:var(--white); font-size:18px; font-weight:530; }
.derivation-step p { margin:0 0 14px; color:var(--muted); font-size:12px; line-height:1.65; }
.derivation-equation { display:flex; align-items:center; gap:8px; min-height:38px; margin:10px 0 14px; padding:9px 12px; overflow-x:auto; border-left:2px solid rgba(88,166,198,.55); background:rgba(88,166,198,.05); color:#e8e8ed; font-family:"Times New Roman",serif; font-size:20px; white-space:nowrap; }
.derivation-equation sub, .derivation-equation sup { font-size:.62em; }
.fraction { display:inline-flex; flex-direction:column; align-items:center; vertical-align:middle; line-height:1.05; }
.fraction i, .fraction em { padding:0 5px; font-style:normal; }
.fraction i { border-bottom:1px solid currentColor; }
.derivation-note { color:var(--dim) !important; font-size:11px !important; }
.derivation-summary { display:grid; gap:9px; margin-top:28px; padding:21px 24px; border:1px solid rgba(88,166,198,.3); background:rgba(88,166,198,.06); }
.derivation-summary span { color:var(--dim); font-size:10px; letter-spacing:.08em; text-transform:uppercase; }
.derivation-summary strong { color:#b6e6f7; font-family:"Times New Roman",serif; font-size:24px; font-weight:400; }
.derivation-summary small { color:var(--muted); font-size:11px; }
.resolution-visuals { display:grid; grid-template-columns:1.35fr .65fr; gap:32px; width:min(1500px,100%); margin-top:32px; }
.geometry-card, .formula-card { min-width:0; padding:28px; border:1px solid var(--line); background:#0e1014; }
#resolutionDiagram { display:block; width:100%; height:auto; margin-top:18px; overflow:visible; }
#resolutionDiagram text { fill:#a1a1a6; font:12px -apple-system,BlinkMacSystemFont,"SF Pro Display",sans-serif; }
#resolutionDiagram .diagram-accent { fill:#f2b84b; }
.resolution-formulas { margin-top:17px; border-top:1px solid var(--line); }
.resolution-formulas p { display:flex; justify-content:space-between; gap:16px; align-items:baseline; margin:0; padding:16px 0; border-bottom:1px solid var(--line); }
.resolution-formulas span { color:var(--muted); font-size:11px; }
.resolution-formulas strong { color:var(--white); font-family:"Times New Roman",serif; font-size:18px; font-weight:400; text-align:right; }
.model-note { margin:20px 0 0; color:var(--dim); font-size:11px; }
.teaching-list { margin-top:65px; border-top:1px solid var(--line-strong); }
.teaching-list > a { display:grid; grid-template-columns:58px 1fr auto; gap:22px; align-items:center; padding:25px 0; border-bottom:1px solid var(--line); transition:color .2s ease,background .2s ease; }
.teaching-list > a:hover { color:var(--accent); background:rgba(255,255,255,.018); }
.teaching-list > a > span { color:var(--dim); font-size:11px; }
.teaching-list h3 { margin:0; font-size:21px; font-weight:540; }
.teaching-list p { margin:6px 0 0; color:var(--muted); font-size:14px; }
.teaching-list b { font-size:18px; font-weight:400; }
.teaching-enter { display:inline-flex; gap:10px; align-items:center; margin-top:34px; color:var(--accent); font-size:13px; font-weight:650; }
.publications { background:var(--black); }
.publication-list { margin-top:70px; border-top:1px solid var(--line-strong); }
.publication { display:grid; grid-template-columns:110px 1fr; gap:40px; padding:36px 0; border-bottom:1px solid var(--line); }
.publication-year { color:var(--dim); font-size:14px; }
.journal { margin:0 0 11px; color:var(--muted); font-size:11px; font-weight:650; letter-spacing:.08em; text-transform:uppercase; }
.publication h3 { max-width:1000px; margin:0; font-size:clamp(22px,2.5vw,34px); font-weight:510; line-height:1.25; }
.authors { margin:16px 0; color:var(--muted); font-size:13px; }
.authors strong { color:var(--white); font-weight:650; }
.publication a { display:inline-flex; gap:9px; align-items:center; color:var(--accent); font-size:12px; font-weight:620; }
.orcid-link { display:grid; grid-template-columns:110px 1fr auto; gap:40px; align-items:center; margin-top:48px; padding:23px 0; border-top:1px solid var(--line-strong); border-bottom:1px solid var(--line-strong); }
.orcid-link span { color:var(--dim); font-size:11px; letter-spacing:.1em; }
.orcid-link strong { font-size:20px; font-weight:520; }
.projects { background:var(--black-2); }
.project-feature { display:grid; grid-template-columns:1.25fr .75fr; margin-top:65px; border:1px solid var(--line); background:var(--black); }
.project-media { min-width:0; overflow:hidden; }
.project-media img { width:100%; height:100%; min-height:520px; object-fit:cover; object-position:top; filter:brightness(.75) saturate(.72); transition:transform .4s ease,filter .4s ease; }
.project-feature:hover .project-media img { transform:scale(1.015); filter:brightness(.9) saturate(.85); }
.project-copy { display:flex; flex-direction:column; justify-content:center; padding:7vw 5vw; }
.project-copy h3 { margin:0; font-size:clamp(45px,5vw,76px); font-weight:530; }
.project-copy > p:not(.eyebrow) { margin:22px 0 0; color:var(--muted); }
.project-copy > span { margin-top:32px; color:var(--accent); font-size:13px; font-weight:620; }
footer { min-height:210px; display:grid; grid-template-columns:1fr auto; gap:22px; align-content:center; padding:40px 4vw; background:#020203; font-size:12px; }
footer p { margin:0; color:var(--muted); }
footer nav { display:flex; gap:24px; }
footer > span { grid-column:1 / -1; padding-top:18px; border-top:1px solid var(--line); color:var(--dim); }
@media (max-width:900px) { .site-header { grid-template-columns:1fr auto; padding:0 22px; } .site-header nav { display:none; } .hero-portrait { width:54vw; opacity:1; } .hero-copy { width:min(650px,72vw); } .research, .attenuation-workspace { grid-template-columns:1fr; } .attenuation-output { margin-top:10px; } .project-feature { grid-template-columns:1fr; } .project-media img { min-height:0; aspect-ratio:4/3; } }
@media (max-width:640px) { .site-header { height:54px; } .wordmark { font-size:12px; } .hero { min-height:100svh; padding:0 22px; } .hero-portrait { inset:54px -10vw auto auto; width:75vw; height:47svh; opacity:1; } .hero-portrait::after { background:linear-gradient(90deg,#050506 0%,rgba(5,5,6,.56) 13%,transparent 40%),linear-gradient(0deg,#050506 0%,rgba(5,5,6,.65) 16%,transparent 42%); } .hero-portrait img { object-position:50% 17%; filter:grayscale(.18) brightness(.86) contrast(1.04); } .hero-copy { width:100%; padding-top:92px; } .hero h1 { font-size:58px; line-height:.92; } .hero-focus { gap:5px; margin-top:18px; } .hero-focus p { max-width:350px; font-size:14px; line-height:1.42; } .hero-focus p::before { width:11px; margin-right:8px; } .hero-meta { display:block; margin-top:17px; font-size:10px; } .hero-meta span { display:block; margin-top:5px; } .hero-meta span + span::before { display:none; } .hero-field span:nth-child(1) { right:-40vw; opacity:.6; } .hero-field span:nth-child(n+2) { opacity:.35; } .hero-actions { grid-template-columns:1fr; gap:9px; width:100%; padding-bottom:40px; } .button { min-height:40px; } .section { min-height:auto; padding:88px 22px 58px; } .section-intro h2 { font-size:43px; } .research-list { margin-top:45px; } .research-list article { grid-template-columns:34px 1fr; gap:11px; } .attenuation-workspace { margin-top:45px; } .calculator-fields { grid-template-columns:1fr 1fr; } .calculator-actions { flex-direction:column; } .calculator-actions .button { width:100%; } .output-heading { align-items:start; flex-direction:column; gap:14px; } .output-heading label { width:145px; } .transmission-metrics { grid-template-columns:1fr 1fr; } .transmission-metrics > div { padding:16px 10px 15px 0; } .transmission-metrics > div + div { padding-left:10px; } .transmission-metrics > div:nth-child(3) { border-left:0; border-top:1px solid var(--line); } .transmission-metrics > div:nth-child(4) { border-top:1px solid var(--line); } .equation-strip { gap:11px; font-size:15px; } .equation-strip span + span { padding-left:11px; } .teaching-list { margin-top:45px; } .teaching-list > a { grid-template-columns:28px 1fr auto; gap:10px; padding:22px 0; } .teaching-list h3 { font-size:18px; } .teaching-list p { font-size:13px; } .publication-list { margin-top:50px; } .publication { grid-template-columns:1fr; gap:13px; padding:30px 0; } .publication h3 { font-size:23px; } .orcid-link { grid-template-columns:1fr auto; gap:7px 18px; } .orcid-link strong { grid-column:1; font-size:16px; overflow-wrap:anywhere; } .orcid-link b { grid-column:2; grid-row:1 / 3; } .project-feature { margin-top:45px; } .project-copy { padding:50px 24px; } footer { grid-template-columns:1fr; padding:42px 22px; } footer nav { flex-wrap:wrap; } footer > span { grid-column:1; } }
@media (max-width:1180px) { .calculator-page .attenuation-form { grid-template-columns:repeat(2,minmax(0,1fr)); } .calculator-page .penetration-fieldset { grid-column:1 / -1; margin-top:26px; padding-top:26px; border-top:1px solid var(--line); } .calculator-page .attenuation-form .penetration-fieldset { padding-left:0; border-left:0; } .calculator-page .calculator-actions { grid-column:1; } .calculator-page .calculator-status { grid-column:2; } }
@media (max-width:1100px) { .resolution-workspace, .resolution-visuals { grid-template-columns:1fr; } .resolution-form { display:grid; grid-template-columns:.9fr 1.1fr; gap:0 28px; } .resolution-form-heading { grid-column:1 / -1; } .resolution-fields { grid-row:2 / 5; } .resolution-form .calculator-actions { grid-column:2; align-self:end; } .resolution-form .calculator-status { grid-column:2; } }
@media (max-width:900px) { .derivation-grid { grid-template-columns:1fr; } .derivation-lead { align-items:start; flex-direction:column; } .derivation-current { width:100%; min-width:0; } }
@media (max-width:700px) { .calculator-page .attenuation { padding:92px 18px 54px; } .calculator-page .attenuation-intro h1 { font-size:43px; } .calculator-page .attenuation-form { grid-template-columns:1fr; gap:25px; padding:20px 16px; } .calculator-page .attenuation-form fieldset + fieldset { padding:25px 0 0; border-top:1px solid var(--line); border-left:0; } .calculator-page .penetration-fieldset, .calculator-page .calculator-actions, .calculator-page .calculator-status { grid-column:1; } .calculator-page .calculator-actions { margin-top:0; } .calculator-page .calculator-status { margin:0; padding:0; border-top:0; } .calculator-page #transmissionChart { aspect-ratio:1.45; } .equivalent-heading { align-items:start; flex-direction:column; gap:9px; } .equivalent-heading p { text-align:left; } .equivalent-results { grid-template-columns:1fr; } .equivalent-results > div + div { border-top:1px solid var(--line); border-left:0; } }
@media (max-width:700px) { .resolution { padding:92px 18px 54px; } .resolution-intro h1 { font-size:clamp(27px,7.5vw,43px); } .resolution-workspace { margin-top:42px; } .resolution-form, .resolution-results, .geometry-card, .formula-card { padding:20px 16px; } .resolution-form { display:block; } .resolution-fields { grid-template-columns:1fr 1fr; } .resolution-form .calculator-actions { margin-top:0; } .resolution-results-heading { align-items:start; flex-direction:column; } .resolution-metrics { grid-template-columns:1fr 1fr; } .resolution-metrics strong { font-size:20px; } .resolution-visuals { gap:20px; margin-top:20px; } #resolutionDiagram { margin-top:12px; } }
@media (max-width:700px) { .derivation-panel { margin-top:20px; } .derivation-panel summary { flex-wrap:wrap; gap:5px 12px; padding:18px 16px; } .derivation-panel summary span { width:100%; } .derivation-panel summary b { position:absolute; right:34px; } .derivation-content { padding:20px 16px; } .derivation-step { grid-template-columns:27px 1fr; gap:9px; padding:23px 0; } .derivation-equation { font-size:17px; } .derivation-summary { padding:18px 15px; } .derivation-summary strong { overflow-x:auto; font-size:19px; white-space:nowrap; } }
@media (max-width:430px) { .resolution-fields { grid-template-columns:1fr; } .resolution-metrics { grid-template-columns:1fr; } }
@media (max-width:430px) { .custom-material-options { grid-template-columns:1fr; } }
@media (max-width:430px) { .penetration-equivalents { grid-template-columns:1fr; } .penetration-equivalents > div { padding:0 0 13px; } .penetration-equivalents > div + div { padding:13px 0 0; border-top:1px solid rgba(255,255,255,.13); border-left:0; } }
@media (max-width:700px) { .equivalent-reference { grid-template-columns:1fr; gap:5px; } .equivalent-reference > small { text-align:left; } }
@media (prefers-reduced-motion:reduce) { html { scroll-behavior:auto; } * { transition:none!important; } }