/* ============================================================
   COLOR WHEEL PAGE — HtmlColor.Codes
   color-wheel.css
   ============================================================ */

/* ── VARIABLES ── */
:root {
  --brand: #e8400a;
  --brand-bg: rgba(232,64,10,.08);
  --brand-border: rgba(232,64,10,.2);
  --bg: #ffffff;
  --bg2: #f7f7f7;
  --bg3: #efefef;
  --border: #e0e0e0;
  --text: #111111;
  --text2: #444444;
  --muted: #777777;
  --card: #ffffff;
  --nav-bg: rgba(255,255,255,.96);
  --shadow: 0 2px 14px rgba(0,0,0,.07);
  --shadow-lg: 0 8px 36px rgba(0,0,0,.12);
  --radius: 12px;
  --mono: 'JetBrains Mono', monospace;
  --sans: 'Inter', sans-serif;
  --fs-nav: 16px;
  --fs-body: 21px;
  --fs-small: 16px;
  --fs-h1: 50px;
  --fs-h2: 40px;
  --transition: .2s ease;
}

html.dark {
  --bg: #111111;
  --bg2: #1a1a1a;
  --bg3: #252525;
  --border: #333333;
  --text: #eeeeee;
  --text2: #cccccc;
  --muted: #888888;
  --card: #1a1a1a;
  --nav-bg: rgba(17,17,17,.96);
  --shadow: 0 2px 14px rgba(0,0,0,.4);
  --shadow-lg: 0 8px 36px rgba(0,0,0,.6);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  font-size: var(--fs-body);
  line-height: 1.65;
  overflow-x: hidden;
  transition: background .25s, color .25s;
}
a { color: inherit; text-decoration: none; }
h1,h2,h3,h4,h5,h6 {
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1.15;
  -webkit-font-smoothing: antialiased;
}
code {
  font-family: var(--mono);
  font-size: .84em;
  background: var(--bg3);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--brand);
}

/* ── NAV ── */
nav {
  position: sticky; top: 0; z-index: 200;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 28px; height: 62px;
  box-shadow: var(--shadow); gap: 12px;
}
.nav-logo {
  font-weight: 700; font-size: 1.1rem;
  letter-spacing: -.5px;
  display: flex; align-items: center; gap: 6px; white-space: nowrap;
}
.nav-logo .hash { color: var(--brand); font-size: 1.35rem; }
.nav-links { display: flex; align-items: center; gap: 2px; list-style: none; }
.nav-links a {
  display: flex; align-items: center; gap: 5px;
  padding: 6px 11px; border-radius: 8px;
  font-size: var(--fs-nav); font-weight: 600; color: var(--text2);
  transition: background var(--transition), color var(--transition);
}
.nav-links a:hover, .nav-links a.active { background: var(--bg3); color: var(--brand); }
.nav-links svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.nav-right { display: flex; align-items: center; gap: 8px; }
.theme-toggle { display: flex; align-items: center; background: var(--bg3); border: 1.5px solid var(--border); border-radius: 50px; padding: 3px; gap: 2px; }
.tbtn { width: 30px; height: 30px; border-radius: 50px; border: none; background: transparent; cursor: pointer; font-size: 13px; display: flex; align-items: center; justify-content: center; transition: background var(--transition); color: var(--muted); }
.tbtn.act { background: var(--brand); color: #fff; }

/* ── BREADCRUMB ── */
.breadcrumb {
  max-width: 1100px; margin: 0 auto;
  padding: 14px 24px 0;
  font-size: var(--fs-small); color: var(--muted);
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
}
.breadcrumb a { color: var(--brand); font-weight: 600; }
.breadcrumb a:hover { text-decoration: underline; }

/* ── HERO ── */
.page-hero {
  max-width: 1100px; margin: 0 auto;
  padding: 52px 24px 44px;
}
.hero-inner {
  display: grid; grid-template-columns: 1fr 440px;
  gap: 48px; align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--brand-bg); color: var(--brand);
  border: 1px solid var(--brand-border); border-radius: 50px;
  padding: 4px 14px; font-size: var(--fs-small); font-weight: 700;
  letter-spacing: .07em; text-transform: uppercase; margin-bottom: 18px;
}
.page-hero h1 {
  font-size: var(--fs-h1); font-weight: 700;
  letter-spacing: -.04em; margin-bottom: 16px; max-width: 560px;
}
.page-hero h1 em { color: var(--brand); font-style: normal; }
.lead {
  font-size: var(--fs-body); color: var(--text2);
  max-width: 520px; margin-bottom: 28px; line-height: 1.7;
}
.hero-btns { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 32px; }
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--brand); color: white;
  padding: 11px 22px; border-radius: 9px;
  font-weight: 700; font-size: var(--fs-small);
  font-family: var(--sans);
  transition: opacity var(--transition), transform var(--transition);
  cursor: pointer; border: none;
}
.btn:hover { opacity: .88; transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text2);
}
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); opacity: 1; }
.hero-stats { display: flex; gap: 28px; flex-wrap: wrap; padding-top: 4px; border-top: 1px solid var(--border); }
.hero-stat .n { font-size: 1.45rem; font-weight: 700; color: var(--brand); letter-spacing: -.04em; }
.hero-stat .l { font-size: var(--fs-small); color: var(--muted); font-weight: 600; margin-top: 1px; }

/* ── MINI PREVIEW WHEEL ── */
.hero-wheel-wrap {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
#heroWheel { display: block; cursor: crosshair; max-width: 300px; width: 100%; }
.hero-wheel-result {
  display: flex; align-items: center; gap: 12px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 10px; padding: 12px 16px;
  box-shadow: var(--shadow); width: 100%;
}
.hw-swatch { width: 40px; height: 40px; border-radius: 8px; border: 1px solid var(--border); flex-shrink: 0; }
.hw-vals { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.hw-vals span { font-family: var(--mono); font-size: .78rem; color: var(--text2); }
.hw-vals span b { color: var(--brand); }

/* ── TOOL SECTION ── */
.tool-section { background: var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.tool-inner { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* Tab bar */
.tab-bar { display: flex; border-bottom: 1px solid var(--border); overflow-x: auto; scrollbar-width: none; }
.tab-bar::-webkit-scrollbar { display: none; }
.tab-btn {
  display: flex; align-items: center; gap: 7px;
  padding: 14px 18px; font-size: var(--fs-nav); font-weight: 700;
  color: var(--muted); border: none; background: none; cursor: pointer;
  border-bottom: 3px solid transparent; margin-bottom: -1px;
  transition: color var(--transition), border-color var(--transition);
  white-space: nowrap; font-family: var(--sans);
}
.tab-btn svg { width: 17px; height: 17px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.tab-btn.active { color: var(--brand); border-bottom-color: var(--brand); }
.tab-btn:hover:not(.active) { color: var(--text); }
.tab-pane { display: none; padding: 32px 0; }
.tab-pane.active { display: block; }

/* ── MAIN WHEEL LAYOUT ── */
.wheel-layout {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px; align-items: start;
}
.wheel-canvas-wrap {
  position: relative; display: flex;
  flex-direction: column; align-items: center; gap: 14px;
}
#mainWheel { display: block; cursor: crosshair; width: 340px; height: 340px; }
.wheel-cursor-info {
  font-size: var(--fs-small); color: var(--muted);
  text-align: center; font-weight: 600;
}

/* ── RIGHT PANEL ── */
.wheel-panel {
  display: flex; flex-direction: column; gap: 16px;
}

/* Selected color */
.selected-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow);
}
.selected-swatch {
  height: 72px; border-radius: 9px; margin-bottom: 14px;
  background: #e8400a; border: 1px solid rgba(0,0,0,.06);
  cursor: pointer; transition: background .1s;
  display: flex; align-items: center; justify-content: center;
  font-size: var(--fs-small); font-weight: 700; color: rgba(255,255,255,.9);
  text-shadow: 0 1px 4px rgba(0,0,0,.4);
}
.panel-label {
  font-size: .68rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 8px;
}
.val-row { display: flex; align-items: center; gap: 9px; margin-bottom: 8px; }
.val-row:last-child { margin-bottom: 0; }
.val-row label {
  width: 52px; font-size: var(--fs-small); font-weight: 700;
  color: var(--muted); letter-spacing: .05em; text-transform: uppercase; flex-shrink: 0;
}
.val-row input {
  flex: 1; background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); border-radius: 7px; padding: 7px 10px;
  font-family: var(--mono); font-size: .82rem;
  transition: border-color var(--transition); min-width: 0;
}
.val-row input:focus { outline: none; border-color: var(--brand); }
.copy-btn {
  width: 32px; height: 32px; border-radius: 7px; border: 1px solid var(--border);
  background: var(--bg3); cursor: pointer;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  transition: background var(--transition), border-color var(--transition); color: var(--muted);
}
.copy-btn:hover { background: var(--brand); border-color: var(--brand); color: white; }
.copy-btn svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* Harmony type selector */
.harmony-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow);
}
.harmony-types {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 7px; margin-bottom: 14px;
}
.htype-btn {
  padding: 8px 10px; border-radius: 8px;
  border: 1.5px solid var(--border); background: var(--bg3);
  font-size: var(--fs-small); font-weight: 700; color: var(--text2);
  cursor: pointer; transition: all var(--transition);
  font-family: var(--sans); text-align: center;
}
.htype-btn:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-bg); }
.htype-btn.active { background: var(--brand); color: white; border-color: var(--brand); }

/* Harmony swatches */
.harmony-swatches {
  display: flex; gap: 8px; flex-wrap: wrap;
}
.harm-swatch {
  display: flex; flex-direction: column; align-items: center; gap: 5px;
  cursor: pointer; transition: transform var(--transition);
}
.harm-swatch:hover { transform: scale(1.06); }
.harm-dot {
  width: 42px; height: 42px; border-radius: 9px;
  border: 2px solid rgba(0,0,0,.08);
}
.harm-hex { font-family: var(--mono); font-size: .58rem; color: var(--muted); font-weight: 500; }

/* Quick tools card */
.quick-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow);
}
.qa-row { display: flex; gap: 7px; flex-wrap: wrap; }
.qa-btn {
  padding: 7px 13px; border-radius: 7px; border: 1px solid var(--border);
  background: var(--bg3); font-size: var(--fs-small); font-weight: 700;
  color: var(--text2); cursor: pointer; transition: all var(--transition); font-family: var(--sans);
}
.qa-btn:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-bg); }
.qa-btn.primary { background: var(--brand); color: white; border-color: var(--brand); }
.qa-btn.primary:hover { opacity: .88; }

/* ── HARMONY EXPLORER TAB ── */
.harmony-explorer {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
.explorer-wheel-wrap {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
#explorerWheel { display: block; cursor: crosshair; width: 100%; max-width: 320px; }
.explorer-panel { display: flex; flex-direction: column; gap: 14px; }
.harmony-result-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
}
.harmony-result-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  cursor: pointer; transition: transform var(--transition), box-shadow var(--transition);
}
.harmony-result-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.hrc-label {
  padding: 8px 12px; border-bottom: 1px solid var(--border);
  font-size: var(--fs-small); font-weight: 700; color: var(--muted);
  background: var(--bg2); font-family: var(--sans);
}
.hrc-swatches { display: flex; }
.hrc-sw { flex: 1; height: 48px; }

/* ── PALETTE BUILDER TAB ── */
.palette-builder { display: flex; flex-direction: column; gap: 20px; }
.palette-strip-wrap {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow);
}
.palette-strip-display {
  display: flex; height: 72px; border-radius: 10px;
  overflow: hidden; box-shadow: var(--shadow); margin-bottom: 14px;
}
.ps-swatch {
  flex: 1; cursor: pointer; display: flex;
  align-items: flex-end; justify-content: center;
  padding-bottom: 6px; transition: flex .3s;
  position: relative;
}
.ps-swatch:hover { flex: 2; }
.ps-swatch span {
  font-size: .5rem; font-family: var(--mono);
  color: white; text-shadow: 0 1px 4px rgba(0,0,0,.8);
  opacity: 0; transition: opacity .2s;
}
.ps-swatch:hover span { opacity: 1; }
.palette-controls { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.pal-select {
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); border-radius: 7px; padding: 8px 12px;
  font-size: var(--fs-small); font-weight: 600; font-family: var(--sans);
}
.palette-cards {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(130px,1fr)); gap: 10px;
}
.pal-card {
  border-radius: 9px; overflow: hidden; border: 1px solid var(--border);
  box-shadow: var(--shadow); cursor: pointer; transition: transform var(--transition);
}
.pal-card:hover { transform: translateY(-2px); }
.pal-card .swatch { height: 54px; }
.pal-card .info { padding: 8px 10px; background: var(--card); }
.pal-card .info code { font-family: var(--mono); font-size: .74rem; color: var(--brand); display: block; }
.pal-card .info small { font-size: .7rem; color: var(--muted); }

/* ── CONTENT SECTIONS ── */
.content-section { max-width: 1100px; margin: 0 auto; padding: 60px 24px; }
.content-section h2 { font-size: var(--fs-h2); font-weight: 700; letter-spacing: -.04em; margin-bottom: 16px; }
.section-intro { font-size: var(--fs-body); color: var(--text2); max-width: 760px; line-height: 1.75; margin-bottom: 36px; }
.hr { border: none; border-top: 1px solid var(--border); margin: 0; }

/* ── FEATURES GRID ── */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 16px; }
.feature-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
  box-shadow: var(--shadow); transition: transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.feature-icon {
  width: 46px; height: 46px; border-radius: 11px;
  background: var(--brand-bg); display: flex;
  align-items: center; justify-content: center; margin-bottom: 14px;
}
.feature-icon svg { width: 22px; height: 22px; stroke: var(--brand); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.feature-card h3 { font-size: var(--fs-body); font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: var(--fs-small); color: var(--muted); line-height: 1.66; }

/* ── HOW IT WORKS ── */
.steps-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: 14px; }
.step-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow);
}
.step-num {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--brand); color: white;
  font-weight: 700; font-size: var(--fs-body);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--sans); margin-bottom: 14px;
}
.step-card h3 { font-size: var(--fs-body); font-weight: 700; margin-bottom: 7px; }
.step-card p { font-size: var(--fs-small); color: var(--muted); line-height: 1.65; }

/* ── HARMONY THEORY CARDS ── */
.harmony-theory-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(300px,1fr)); gap: 18px; }
.theory-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
}
.theory-preview { height: 60px; display: flex; }
.theory-preview div { flex: 1; }
.theory-body { padding: 18px 20px; }
.theory-body h3 { font-size: var(--fs-body); font-weight: 700; margin-bottom: 6px; }
.theory-body .angle { font-family: var(--mono); font-size: .78rem; color: var(--brand); font-weight: 600; margin-bottom: 8px; }
.theory-body p { font-size: var(--fs-small); color: var(--muted); line-height: 1.65; }
.theory-use { font-size: var(--fs-small); color: var(--brand); font-weight: 700; margin-top: 8px; }

/* ── TIPS ── */
.tips-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.tip-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow);
}
.tip-card h3 { font-size: var(--fs-body); font-weight: 700; margin-bottom: 8px; }
.tip-card p { font-size: var(--fs-small); color: var(--muted); line-height: 1.65; }
.tip-card ul { font-size: var(--fs-small); color: var(--muted); padding-left: 18px; margin-top: 6px; line-height: 1.8; }
.tip-card li { margin-bottom: 3px; }

/* ── PROSE ── */
.prose-section { max-width: 1100px; margin: 0 auto; padding: 60px 24px; }
.prose { max-width: 820px; }
.prose h2 { font-size: var(--fs-h2); font-weight: 700; letter-spacing: -.04em; margin-bottom: 14px; margin-top: 44px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: var(--fs-body); font-weight: 700; margin: 28px 0 8px; color: var(--brand); }
.prose p { font-size: var(--fs-body); color: var(--text2); margin-bottom: 16px; line-height: 1.79; }
.prose ul, .prose ol { font-size: var(--fs-body); color: var(--text2); padding-left: 22px; line-height: 1.82; margin-bottom: 16px; }
.prose li { margin-bottom: 5px; }
.prose strong { color: var(--text); font-weight: 700; }
.callout {
  background: var(--brand-bg); border-left: 4px solid var(--brand);
  border-radius: 0 9px 9px 0; padding: 16px 20px; margin: 22px 0;
  font-size: var(--fs-body); color: var(--text2); line-height: 1.72;
}
.callout strong { color: var(--brand); }

/* ── FAQ ── */
.faq-list { display: flex; flex-direction: column; gap: 9px; }
.faq-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.faq-q {
  width: 100%; text-align: left; background: none; border: none;
  cursor: pointer; padding: 17px 20px; font-size: var(--fs-body);
  font-weight: 700; color: var(--text);
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; transition: background var(--transition); font-family: var(--sans);
}
.faq-q:hover { background: var(--bg2); }
.faq-arr { font-size: .85rem; color: var(--muted); transition: transform .25s; flex-shrink: 0; }
.faq-q.open .faq-arr { transform: rotate(180deg); }
.faq-a { display: none; padding: 0 20px 16px; font-size: var(--fs-body); color: var(--text2); line-height: 1.76; }
.faq-a.show { display: block; }

/* ── RELATED TOOLS ── */
.related-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(200px,1fr)); gap: 14px; }
.related-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px;
  box-shadow: var(--shadow); display: flex; align-items: center;
  gap: 14px; transition: transform var(--transition), box-shadow var(--transition); cursor: pointer;
}
.related-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); color: var(--brand); }
.rc-icon { width: 42px; height: 42px; border-radius: 10px; background: var(--brand-bg); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.rc-icon svg { width: 20px; height: 20px; stroke: var(--brand); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.related-card h4 { font-size: var(--fs-nav); font-weight: 700; margin-bottom: 2px; }
.related-card p { font-size: var(--fs-small); color: var(--muted); }

/* ── FOOTER ── */
.ft-wrap { border-top: 1px solid var(--border); background: var(--bg2); }
footer { padding: 44px 24px 28px; max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit,minmax(160px,1fr)); gap: 28px; }
footer h4 { font-size: var(--fs-small); font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
footer ul { list-style: none; }
footer ul li { margin-bottom: 7px; }
footer ul li a { font-size: var(--fs-small); color: var(--muted); transition: color var(--transition); font-weight: 500; }
footer ul li a:hover { color: var(--brand); }
.ft-brand p { font-size: var(--fs-small); color: var(--muted); margin-top: 7px; max-width: 210px; line-height: 1.55; }
.ft-bottom { border-top: 1px solid var(--border); padding: 16px 24px; text-align: center; font-size: var(--fs-small); color: var(--muted); max-width: 1100px; margin: 0 auto; }

/* ── TOAST ── */
#toast { position: fixed; bottom: 22px; right: 22px; z-index: 9999; background: var(--text); color: var(--bg); border-radius: 9px; padding: 10px 16px; font-size: var(--fs-small); font-weight: 600; transform: translateY(60px); opacity: 0; transition: .28s; pointer-events: none; font-family: var(--sans); }
#toast.show { transform: translateY(0); opacity: 1; }

/* ── AD SLOT ── */
.ad-slot { max-width: 1100px; margin: 40px auto; padding: 0 24px; }
.ad-slot-inner { min-height: 90px; background: var(--bg2); border: 1px dashed var(--border); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; font-size: var(--fs-small); color: var(--muted); }

/* ── RESPONSIVE ── */
@media(max-width:960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-wheel-wrap { display: none; }
  .wheel-layout { grid-template-columns: 1fr; }
  #mainWheel { width: 280px; height: 280px; }
  .harmony-explorer { grid-template-columns: 1fr; }
  .tips-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  :root { --fs-h1: 36px; --fs-h2: 28px; --fs-body: 18px; }
}
@media(max-width:560px) {
  nav { padding: 0 16px; }
  .content-section { padding: 44px 16px; }
  .harmony-types { grid-template-columns: 1fr 1fr; }
  :root { --fs-h1: 30px; --fs-h2: 24px; }
}