/* Function names, visible navigation, and explicit section boundaries. */
:root { --paper:#faf8f4; --ink:#302b25; --muted:#686057; --line:#cec6b9; --accent:#91412d; --header-offset:130px; }
html { scroll-padding-top:var(--header-offset); }
body { background:#eeeae2; }
[hidden] { display:none !important; }
.site-header { position:sticky; top:0; height:auto; min-height:82px; padding:16px max(24px,calc((100vw - 1180px)/2)); gap:14px 26px; flex-wrap:wrap; border-bottom:2px solid #b9ac97; background:var(--paper); z-index:15; }
.site-header .brand { font:700 22px/1.2 var(--sans); letter-spacing:0; gap:10px; }
.site-header .brand small { font:13px/1.4 var(--sans); margin-top:5px; letter-spacing:0; color:var(--muted); }
.site-header .brand-icon { width:30px; height:40px; }
.primary-nav { display:flex; flex:1; justify-content:center; flex-wrap:wrap; gap:4px; }
.primary-nav a { display:flex; align-items:center; justify-content:center; min-height:44px; padding:9px 12px; font-size:15px; font-weight:600; border:1px solid transparent; border-radius:4px; white-space:nowrap; }
.primary-nav a:hover { background:#eae3d6; }
.primary-nav a:first-child { background:var(--brown); color:white; }
.primary-nav a:first-child:hover { background:var(--accent); }
.site-header .header-actions { gap:16px; }
.site-header .motion-toggle { display:flex; width:auto; height:auto; font-size:14px; min-height:44px; padding:0; }
.site-header .motion-toggle::before { display:none; }
.site-header .login-link { font-size:14px; min-height:44px; align-items:center; padding:0; border:0; white-space:nowrap; }
.home-main { max-width:1228px; margin:auto; padding:0 24px; }
.function-nav { display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:12px; margin:0 0 28px; }
.function-nav a { display:flex; flex-direction:column; justify-content:center; gap:5px; padding:18px; border:1px solid #bdb19f; border-radius:5px; background:var(--paper); min-height:104px; }
.function-nav a:hover { border-color:var(--accent); background:#f4ede0; }
.function-nav strong { font-size:18px; }
.function-nav span { font-size:14px; color:var(--muted); }
.function-nav .score-entry { border:2px solid var(--brown); padding:17px; }
.home-main .section { position:relative; margin:0 0 28px; padding:28px; border:1px solid #c5b9a5; border-top:4px solid var(--brown); border-radius:5px; background:var(--paper); scroll-margin-top:16px; box-shadow:0 2px 0 #392c1810; }
.home-main .section-heading { align-items:center; justify-content:space-between; gap:20px; border-bottom:1px solid var(--line); padding-bottom:20px; margin-bottom:24px; }
.section-title { display:flex; align-items:center; gap:14px; }
.section-index { display:grid; place-items:center; flex:none; width:38px; height:38px; background:#e9e0d1; color:var(--brown); border:1px solid #c7b9a4; font:700 16px var(--sans); border-radius:3px; }
.home-main .section-heading h2 { font:700 26px/1.4 var(--sans); letter-spacing:0; margin:0; }
.section-description { font-size:16px; color:var(--muted); margin:6px 0 0; }
.section-status { flex:none; font-size:14px; color:var(--muted); padding:5px 10px; background:#eee8de; border-radius:3px; }
.score-search { display:flex; flex-wrap:wrap; align-items:end; gap:10px; }
.score-search-field { flex:1; min-width:180px; }
.score-search label { display:block; font-size:15px; font-weight:600; margin-bottom:8px; }
.score-search input { width:100%; min-height:48px; padding:10px 14px; border:1px solid #a79a88; background:white; border-radius:3px; color:var(--ink); font-size:16px; }
.button { font-size:16px; gap:12px; min-height:48px; padding:10px 24px; border-radius:3px; }
.button:hover { transform:none; }
.secondary-button { min-height:48px; padding:10px 16px; border:1px solid #a79a88; border-radius:3px; font-size:16px; }
.score-summary { display:flex; align-items:center; gap:16px; margin:18px 0 0; min-height:24px; font-size:14px; color:var(--muted); }
.empty-state { margin-top:20px; padding:26px 22px; border:1px dashed #b9ad99; border-radius:4px; background:#f2eee7; text-align:center; }
.empty-state h3 { font:600 20px/1.5 var(--sans); margin:0 0 6px; }
.empty-state p { margin:0; color:var(--muted); font-size:16px; }
.score-results { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px; margin-top:20px; }
.score-card { border:1px solid var(--line); padding:20px; border-radius:4px; min-width:0; }
.score-card h3 { margin:0 0 10px; font:600 20px/1.5 var(--sans); overflow-wrap:anywhere; }
.score-card p { margin:0 0 18px; color:var(--muted); font-size:14px; }
.score-card a { display:inline-flex; border-bottom:1px solid var(--accent); color:var(--accent); padding:5px 0; min-height:44px; align-items:center; font-size:16px; }
.lessons-layout { gap:28px; grid-template-columns:1fr 1.65fr; }
.lesson-feature { min-height:0; padding:26px; border:1px solid var(--line); border-radius:4px; }
.outline-label { font-size:14px; letter-spacing:0; }
.lesson-feature h3 { font:600 25px/1.5 var(--sans); margin:18px 0 8px; }
.lesson-feature p { font-size:16px; }
.round-link { font-size:16px; min-height:44px; }
.lesson-list>button { min-height:74px; padding:14px 0; gap:18px; }
.lesson-list>button:first-child { padding-top:14px; }
.lesson-list b { font-size:17px; font-weight:600; }
.lesson-list small,.lesson-tag { font-size:14px; }
.lesson-number { font:600 18px var(--sans); }
.lesson-tag { padding:2px 8px; }
.lesson-open { color:var(--accent); font-size:14px; white-space:nowrap; margin-left:auto; }
.string-tool { border-radius:4px; overflow:hidden; }
.tool-step { font-size:16px; }
.tool-step span { font-size:16px; font-weight:600; }
.tool-step small,.tool-hint,.source-note,.tone-disclaimer,.note-result-heading,.note-columns small,.note-bottom { font-size:14px; }
.string-selector button span { font-size:16px; }
.note-bottom button { font-size:16px; }
.note-result { background:#efe8db; }
.tool-hint { line-height:1.7; }
.source-note { line-height:1.8; }
.market-toolbar { gap:18px; flex-wrap:wrap; }
.market-toolbar button { font-size:16px; font-weight:600; padding:10px 16px; border:1px solid var(--line); border-bottom:0; border-radius:3px 3px 0 0; }
.market-toolbar button[aria-pressed=true] { background:var(--brown); border-color:var(--brown); color:white; }
.market-toolbar>div { gap:10px; }
.market-toolbar>span { font-size:14px; }
.market-empty { padding:30px 16px; }
.market-empty h3 { font:600 20px/1.5 var(--sans); margin:0 0 6px; }
.market-empty p { margin:0; font-size:16px; }
.blank-inner { min-height:0; padding:0; text-align:left; border:0; }
.blank-inner h2 { margin:0 0 8px; font:600 20px/1.5 var(--sans); }
.blank-inner p { margin:0; }
.home-main .blank-section { border-top-width:1px; border-style:dashed; box-shadow:none; }
footer { max-width:1180px; margin:12px auto 0; padding:24px 24px 40px; font-size:14px; gap:18px; background:transparent; }
.footer-brand { font:700 18px var(--sans); letter-spacing:0; }
.wave-frame { z-index:6; opacity:1; }
.home-main,.login-layout { position:relative; z-index:2; }
.journey-instrument { opacity:1; }
.dialog-title { font:700 26px/1.5 var(--sans); }
dialog .eyebrow { font-size:14px; letter-spacing:0; }
.dialog-close { font-size:16px; padding:8px; }
.login-layout { max-width:1180px; margin:28px auto; min-height:560px; border:1px solid var(--line); border-radius:5px; overflow:hidden; background:var(--paper); }
.login-art { min-height:560px; }
.login-art .login-symbol { top:35px; width:280px; height:280px; }
.login-art-caption { bottom:48px; }
.login-art-caption h1 { font:700 30px/1.4 var(--sans); }
.login-art-caption p:not(.eyebrow) { font-size:16px; }
.login-panel { padding:36px 10%; }
.login-panel h2 { font:700 28px/1.4 var(--sans); }
.login-panel .eyebrow,.preview-notice,.login-divider,.providers small,.login-status { font-size:14px; letter-spacing:0; }
.guest-link { font-size:16px; min-height:44px; }
@media(max-width:1100px) {
  .site-header { padding:12px 24px; }
  .site-header .header-actions { margin-left:auto; }
  .primary-nav { order:3; flex-basis:100%; justify-content:flex-start; gap:4px; }
  .primary-nav a { flex:1; }
  .function-nav { grid-template-columns:repeat(3,minmax(0,1fr)); }
  .function-nav a { min-height:90px; }
}
@media(max-width:700px) {
  :root { --header-offset:188px; }
  .site-header { padding:10px 16px; gap:8px 12px; }
  .site-header .brand { font-size:20px; }
  .site-header .brand small { font-size:12px; }
  .site-header .header-actions { gap:12px; }
  .site-header .motion-toggle,.site-header .login-link { font-size:14px; }
  .primary-nav { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:5px; }
  .primary-nav a { font-size:14px; padding:8px 5px; background:#eae3d6; min-height:40px; }
  .primary-nav a:last-child { grid-column:span 2; }
  .home-main { padding:0 14px; }
  .function-nav { grid-template-columns:repeat(2,minmax(0,1fr)); gap:8px; margin-bottom:22px; }
  .function-nav a { min-height:80px; padding:13px; }
  .function-nav .score-entry { padding:12px; }
  .function-nav a:last-child { grid-column:span 2; min-height:70px; }
  .function-nav strong { font-size:17px; }
  .function-nav span { font-size:14px; }
  .home-main .section { padding:20px 16px; margin-bottom:22px; scroll-margin-top:12px; }
  .home-main .section-heading { display:flex; flex-wrap:wrap; align-items:flex-start; gap:12px; padding-bottom:16px; margin-bottom:20px; }
  .section-title { gap:10px; }
  .section-index { width:32px; height:32px; font-size:14px; }
  .home-main .section-heading h2 { font-size:23px; }
  .section-description { font-size:16px; }
  .section-status { font-size:14px; }
  .score-search-field { flex-basis:100%; }
  .score-search .button,.score-search .secondary-button { flex:1; }
  .score-results { grid-template-columns:1fr; }
  .lessons-layout { grid-template-columns:1fr; gap:12px; }
  .lesson-feature { padding:20px; }
  .lesson-list>button { gap:12px; }
  .lesson-list small { font-size:14px; }
  .lesson-list b { font-size:16px; }
  .lesson-tag { display:none; }
  .string-selector button { flex-direction:column; gap:6px; }
  .string-selector button span { font-size:14px; }
  .fret-controls,.note-result { padding:22px 14px; }
  .fret-selector { grid-template-columns:repeat(5,minmax(0,1fr)); }
  .note-bottom { flex-wrap:wrap; gap:8px; }
  .source-note a { margin-left:0; }
  .market-toolbar>div { width:100%; }
  .market-toolbar button { flex:1; padding:10px 8px; }
  .market-toolbar>span { padding-bottom:10px; }
  .empty-state { padding:24px 14px; }
  footer { margin:0 14px; padding:18px 4px 36px; }
  .login-layout { margin:20px 14px; min-height:0; }
  .login-panel { padding:28px 20px; }
}
@media(max-width:360px) {
  .site-header .brand small { display:none; }
  .site-header .brand { font-size:18px; }
  .site-header .brand-icon { width:24px; }
  .site-header .header-actions { gap:8px; }
}
@media(prefers-reduced-motion:reduce) { html { scroll-behavior:auto; } }