/* ==========================================================================
   AnalyzeMouseDPI — Shared Stylesheet
   Pure CSS, no frameworks. Clean light aesthetic with a purple accent.
   Used by every page on the site for a consistent look and feel.
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root {
  --bg:            #f4f3fb;   /* light lavender page background */
  --bg-soft:       #f5f6fb;   /* inputs, stages, subtle fills */
  --bg-card:       #ffffff;   /* cards / surfaces */
  --bg-card-hover: #faf9ff;
  --border:        #e7e8f2;
  --border-soft:   #eef0f7;

  --text:          #1c1b2e;   /* near-black headings/body */
  --text-muted:    #656b80;
  --text-faint:    #969cb0;

  --accent:        #7b5cff;   /* primary purple */
  --accent-hover:  #6a48f5;
  --accent-2:      #5b8def;   /* secondary blue (gradients) */
  --accent-soft:   rgba(123, 92, 255, 0.10);
  --danger:        #ef4d68;
  --warn:          #f4a833;
  --good:          #22b07d;

  --radius:        16px;
  --radius-sm:     11px;
  --shadow:        0 12px 30px rgba(28, 27, 46, 0.08);
  --maxw:          1120px;
  --gap:           24px;

  --font: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  --mono: "SF Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
/* Larger base type across the whole site (everything scales from this). */
html { scroll-behavior: smooth; font-size: 18px; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, canvas { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; margin: 0 0 0.5em; }
h1 { font-size: clamp(1.9rem, 4vw, 2.8rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); letter-spacing: -0.01em; }
h3 { font-size: 1.2rem; }
p  { margin: 0 0 1em; color: var(--text-muted); }
ul, ol { color: var(--text-muted); }
code { font-family: var(--mono); background: var(--bg-soft); padding: 0.1em 0.4em; border-radius: 5px; font-size: 0.9em; color: var(--accent); }

/* ---------- Layout helpers ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.section  { padding: 64px 0; }
.section-sm { padding: 40px 0; }
.center { text-align: center; }
.muted { color: var(--text-muted); }
.lead { font-size: 1.2rem; color: var(--text-muted); max-width: 60ch; }
.grid { display: grid; gap: var(--gap); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 1.15rem; color: var(--text);
  letter-spacing: -0.02em;
}
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; color: #fff; font-weight: 900;
  font-size: 1rem;
}
.brand span b { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 6px; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  color: var(--text-muted); font-weight: 600; font-size: 1rem;
  padding: 8px 12px; border-radius: 8px; transition: all 0.15s;
}
.nav-links a:hover { color: var(--accent); background: var(--accent-soft); text-decoration: none; }
.nav-links a.active { color: var(--accent); }
/* The CTA button in the nav is an <a>; keep its label white over the purple fill. */
.nav-links a.btn-primary { color: #fff; }
.nav-links a.btn-primary:hover { color: #fff; background: var(--accent-hover); }
.nav-toggle {
  display: none; background: none; border: 1px solid var(--border);
  color: var(--text); border-radius: 8px; padding: 8px 10px; cursor: pointer;
  font-size: 1.1rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 700; font-size: 1rem; cursor: pointer;
  padding: 12px 22px; border-radius: 10px; border: 1px solid transparent;
  transition: transform 0.08s, background 0.15s, border 0.15s;
  text-decoration: none; line-height: 1;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 8px 18px rgba(123, 92, 255, 0.28); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-ghost { background: var(--bg-card); color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.btn-block { width: 100%; }
.btn-lg { padding: 15px 30px; font-size: 1.05rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
  box-shadow: 0 1px 3px rgba(28, 27, 46, 0.05);
}
.card-link { display: block; transition: border 0.18s, box-shadow 0.18s, transform 0.12s; color: inherit; }
.card-link:hover { border-color: rgba(123, 92, 255, 0.5); text-decoration: none; transform: translateY(-4px); box-shadow: 0 18px 36px rgba(28, 27, 46, 0.10); }
.card-icon {
  width: 46px; height: 46px; border-radius: 13px; background: var(--accent-soft);
  display: grid; place-items: center; margin-bottom: 16px; color: var(--accent);
}

/* ---------- Outline icons (replace emoji) ---------- */
.ic { width: 24px; height: 24px; display: inline-block; vertical-align: middle; }
.ic-side { width: 18px; height: 18px; display: inline-block; vertical-align: -4px; margin-right: 9px; }
.card h3 { color: var(--text); margin-bottom: 6px; }
.card p { margin-bottom: 0; font-size: 1rem; }
.card .kw { font-size: 0.8rem; color: var(--text-faint); margin-top: 10px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: 80px 0 64px;
  text-align: center;
  background:
    radial-gradient(900px 400px at 50% -10%, rgba(123, 92, 255, 0.14), transparent),
    radial-gradient(700px 360px at 50% 0%, rgba(91, 141, 239, 0.10), transparent);
}
.hero h1 { max-width: 20ch; margin-left: auto; margin-right: auto; }
.hero .lead { margin: 0 auto 28px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent-soft); color: var(--accent);
  font-weight: 600; font-size: 0.85rem; padding: 6px 14px; border-radius: 999px;
  margin-bottom: 18px; border: 1px solid rgba(123, 92, 255, 0.25);
}

/* ---------- Tool page layout ---------- */
.tool-shell { display: grid; grid-template-columns: 240px 1fr; gap: 32px; align-items: start; }
.tool-side { position: sticky; top: 84px; }
.tool-side h4 { color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.75rem; margin: 0 0 12px; }
.tool-side ul { list-style: none; margin: 0 0 24px; padding: 0; }
.tool-side li { margin-bottom: 2px; }
.tool-side a {
  display: block; color: var(--text-muted); font-weight: 600; font-size: 0.92rem;
  padding: 8px 12px; border-radius: 8px;
}
.tool-side a:hover { background: var(--accent-soft); color: var(--accent); text-decoration: none; }
.tool-side a.active { background: var(--accent-soft); color: var(--accent); }

.tool-panel { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.tool-stage {
  background: var(--bg-soft); border: 1px solid var(--border-soft); border-radius: var(--radius-sm);
  min-height: 280px; display: grid; place-items: center; position: relative;
  user-select: none; touch-action: none;
}
.tool-stage canvas { border-radius: var(--radius-sm); }

/* readout / stats */
.readout { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 14px; margin-top: 20px; }
.stat { background: var(--bg-soft); border: 1px solid var(--border-soft); border-radius: var(--radius-sm); padding: 16px 18px; }
.stat .label { font-size: 0.78rem; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.05em; }
.stat .value { font-size: 1.7rem; font-weight: 800; color: var(--text); font-variant-numeric: tabular-nums; }
.stat .value small { font-size: 0.9rem; font-weight: 600; color: var(--text-muted); }
.stat.good .value { color: var(--good); }
.stat.warn .value { color: var(--warn); }
.stat.bad  .value { color: var(--danger); }

/* form controls */
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-muted); margin-bottom: 6px; }
.input, select.input {
  width: 100%; background: var(--bg-soft); border: 1px solid var(--border);
  color: var(--text); border-radius: 9px; padding: 11px 13px; font-size: 1rem;
  font-family: var(--font);
}
.input:focus, select.input:focus { outline: none; border-color: var(--accent); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* ---------- Performance report ---------- */
.score-ring { display: grid; place-items: center; gap: 4px; }
.score-num { font-size: 3.6rem; font-weight: 900; line-height: 1; font-variant-numeric: tabular-nums; }
.score-grade { font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; font-size: 0.85rem; }
.report-row { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; border-bottom: 1px solid var(--border-soft); }
.report-row:last-child { border-bottom: none; }
.bar { height: 8px; background: var(--bg-soft); border-radius: 99px; overflow: hidden; flex: 1; margin: 0 16px; }
.bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent-2), var(--accent)); border-radius: 99px; }

/* ---------- Blog ---------- */
.post { max-width: 760px; margin: 0 auto; }
.post h1 { margin-bottom: 12px; }
.post .meta { color: var(--text-faint); font-size: 0.9rem; margin-bottom: 28px; }
.post h2 { margin-top: 1.6em; }
.post p, .post li { font-size: 1.1rem; }
.post img { border-radius: var(--radius-sm); margin: 1.5em 0; border: 1px solid var(--border); }
.callout {
  background: var(--accent-soft); border: 1px solid rgba(123,92,255,0.25);
  border-left: 3px solid var(--accent); border-radius: var(--radius-sm);
  padding: 16px 20px; margin: 1.5em 0;
}
.callout p:last-child { margin-bottom: 0; }
.faq dt { font-weight: 700; color: var(--text); margin-top: 1.1em; }
.faq dd { margin: 0.3em 0 0; color: var(--text-muted); }
.tag { display: inline-block; background: var(--accent-soft); border: 1px solid transparent; color: var(--accent); font-size: 0.8rem; font-weight: 700; padding: 4px 12px; border-radius: 99px; }

.post-card { display: flex; flex-direction: column; height: 100%; }
.post-card .tag { align-self: flex-start; margin-bottom: 12px; }
.post-card h3 { margin-bottom: 8px; }
.post-card p { flex: 1; }
.post-card .more { color: var(--accent); font-weight: 600; font-size: 0.9rem; margin-top: 10px; }

/* ---------- Section headings ---------- */
.section-head { text-align: center; max-width: 60ch; margin: 0 auto 40px; }
.section-head h2 { margin-bottom: 10px; }
.section-head p { margin: 0; }
.eyebrow { color: var(--accent); font-weight: 700; font-size: 0.82rem; letter-spacing: 0.1em; text-transform: uppercase; display: block; margin-bottom: 10px; }

/* ---------- Upsell banner ---------- */
.upsell {
  background: linear-gradient(120deg, rgba(123,92,255,0.12), rgba(91,141,239,0.12));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 32px; display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.upsell h3 { margin-bottom: 4px; }
.upsell p { margin: 0; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border-soft); background: var(--bg-soft);
  padding: 48px 0 32px; margin-top: 64px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; }
.footer-grid h5 { color: var(--text); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; margin: 0 0 14px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 8px; }
.footer-grid a { color: var(--text-muted); font-size: 0.92rem; }
.footer-grid a:hover { color: var(--text); }
.footer-brand p { font-size: 0.92rem; max-width: 34ch; }
.footer-bottom { border-top: 1px solid var(--border-soft); margin-top: 32px; padding-top: 24px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--text-faint); font-size: 0.85rem; }

/* ---------- Misc ---------- */
.list-check { list-style: none; padding: 0; margin: 0; }
.list-check li { position: relative; padding-left: 28px; margin-bottom: 10px; color: var(--text-muted); }
.list-check li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 800; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-sm); }
table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border-soft); }
th { color: var(--text); font-weight: 700; background: var(--bg-soft); }
td { color: var(--text-muted); }
.hint { font-size: 0.85rem; color: var(--text-faint); }
.divider { height: 1px; background: var(--border-soft); margin: 40px 0; border: 0; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* ---------- Responsive ---------- */
/* Let grid/flex children shrink instead of forcing the track wider than the
   viewport (prevents horizontal overflow on narrow screens). */
.tool-shell > * { min-width: 0; }

@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .tool-shell { grid-template-columns: 1fr; }
  .tool-side { position: static; }
  .tool-side ul { display: flex; flex-wrap: wrap; gap: 6px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: var(--bg-soft); border-bottom: 1px solid var(--border);
    padding: 12px; box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .row { grid-template-columns: 1fr; }
  .section { padding: 44px 0; }
  .upsell { flex-direction: column; align-items: flex-start; }
  /* Report rows: name + score on top, full-width bar underneath */
  .report-row { flex-wrap: wrap; }
  .report-row > span { min-width: 0 !important; flex: 1; }
  .report-row .bar { flex-basis: 100%; order: 3; margin: 8px 0 0; }
}