/* WorkLifeSleep.com — design system
 * Triangle motif. Three pillars: Work (amber sunrise), Life (green growth), Sleep (indigo night).
 */

:root {
  --c-work: #d97706;
  --c-work-soft: #fef3c7;
  --c-work-deep: #92400e;

  --c-life: #16a34a;
  --c-life-soft: #dcfce7;
  --c-life-deep: #14532d;

  --c-sleep: #4f46e5;
  --c-sleep-soft: #e0e7ff;
  --c-sleep-deep: #312e81;

  --c-ink: #0f172a;
  --c-ink-soft: #334155;
  --c-mute: #64748b;
  --c-line: #e2e8f0;
  --c-line-soft: #f1f5f9;
  --c-bg: #fafaf7;
  --c-bg-card: #ffffff;
  --c-warm: #fdf6e3;

  --shadow-sm: 0 1px 2px rgba(15,23,42,.04), 0 1px 3px rgba(15,23,42,.06);
  --shadow-md: 0 4px 6px -1px rgba(15,23,42,.06), 0 10px 15px -3px rgba(15,23,42,.08);
  --shadow-lg: 0 10px 30px -5px rgba(15,23,42,.10), 0 20px 50px -10px rgba(15,23,42,.12);

  --radius-sm: 0.5rem;
  --radius: 0.875rem;
  --radius-lg: 1.5rem;

  --serif: 'Iowan Old Style', 'Charter', 'Source Serif Pro', Georgia, 'Times New Roman', serif;
  --sans:  -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', system-ui, sans-serif;

  --container: 1180px;
}

* { box-sizing: border-box; }
*:focus-visible { outline: 2px solid var(--c-sleep); outline-offset: 2px; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-ink);
  font: 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; display: block; }
a { color: var(--c-sleep); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

h1, h2, h3, h4 { font-family: var(--serif); color: var(--c-ink); margin: 0 0 .5em; line-height: 1.2; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 2.6vw, 2.125rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 700; }
h4 { font-size: 1rem; font-weight: 700; }
p  { margin: 0 0 1em; }

.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 1rem; top: 1rem; background: var(--c-ink); color: #fff; padding: .5rem .75rem; border-radius: var(--radius-sm); z-index: 100; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 1.25rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 250, 247, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--c-line);
}
.header-row { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.25rem; gap: 1rem; max-width: var(--container); margin: 0 auto; }

.brand { display: inline-flex; align-items: center; gap: .625rem; color: var(--c-ink); text-decoration: none; font-weight: 700; font-size: 1.125rem; }
.brand-mark { width: 36px; height: 32px; flex: none; }
.brand-text { letter-spacing: -.02em; }
.brand-sep  { color: var(--c-mute); margin: 0 .15em; font-weight: 400; }

.nav-main { display: flex; align-items: center; gap: 1.25rem; }
.nav-main a { color: var(--c-ink-soft); text-decoration: none; font-weight: 500; font-size: .95rem; transition: color .15s; }
.nav-main a:hover { color: var(--c-ink); }
.nav-pillar { position: relative; }
.nav-pillar::before { content: ''; display: inline-block; width: .5rem; height: .5rem; border-radius: 50%; margin-right: .375rem; vertical-align: middle; }
.nav-work::before  { background: var(--c-work); }
.nav-life::before  { background: var(--c-life); }
.nav-sleep::before { background: var(--c-sleep); }
.nav-sep { width: 1px; height: 1.25rem; background: var(--c-line); }
.nav-cta { background: var(--c-ink); color: #fff !important; padding: .5rem .875rem; border-radius: 999px; font-size: .875rem !important; }
.nav-cta:hover { background: var(--c-sleep); }

.mobile-toggle { display: none; background: transparent; border: 0; padding: .5rem; cursor: pointer; }
.mobile-toggle span { display: block; width: 22px; height: 2px; background: var(--c-ink); margin: 5px 0; transition: all .2s; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .75rem 1.25rem; border-radius: 999px;
  background: var(--c-ink); color: #fff !important; text-decoration: none;
  font-weight: 600; font-size: .95rem; line-height: 1;
  border: 1px solid var(--c-ink); cursor: pointer;
  transition: transform .15s, background .15s, box-shadow .15s;
}
.btn:hover { transform: translateY(-1px); background: var(--c-sleep); border-color: var(--c-sleep); box-shadow: var(--shadow-md); }
.btn-light { background: #fff; color: var(--c-ink) !important; border-color: var(--c-line); }
.btn-light:hover { background: var(--c-warm); border-color: var(--c-ink); color: var(--c-ink) !important; }
.btn-work  { background: var(--c-work);  border-color: var(--c-work); }
.btn-life  { background: var(--c-life);  border-color: var(--c-life); }
.btn-sleep { background: var(--c-sleep); border-color: var(--c-sleep); }
.btn-lg { padding: 1rem 1.75rem; font-size: 1.0625rem; }

/* ---------- Hero (homepage) ---------- */
.hero {
  position: relative;
  padding: 4rem 0 5rem;
  background:
    radial-gradient(circle at 20% 0%, rgba(217,119,6,.10), transparent 50%),
    radial-gradient(circle at 80% 0%, rgba(79,70,229,.10), transparent 50%),
    radial-gradient(circle at 50% 100%, rgba(22,163,74,.08), transparent 50%);
  overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.hero h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); margin-bottom: 1.25rem; }
.hero h1 .accent-work  { color: var(--c-work); }
.hero h1 .accent-life  { color: var(--c-life); }
.hero h1 .accent-sleep { color: var(--c-sleep); }
.hero-lede { font-size: 1.1875rem; color: var(--c-ink-soft); max-width: 32rem; margin-bottom: 2rem; }
.hero-cta-row { display: flex; gap: .75rem; flex-wrap: wrap; }

/* The signature triangle SVG */
.triangle-svg { width: 100%; max-width: 460px; margin-left: auto; display: block; overflow: visible; }
.triangle-vertex { font: 700 14px var(--sans); }
.triangle-side   { font: 500 12px var(--sans); fill: var(--c-mute); }

/* Auto-stacking 3-column grid (homepage pillar cards, audit summary cards) */
.three-col-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; }
@media (max-width: 720px) {
  .three-col-grid { grid-template-columns: 1fr; }
}

/* ---------- Sections ---------- */
.section { padding: 4rem 0; }
.section-tight { padding: 2.5rem 0; }
.section-tinted { background: var(--c-warm); }

.kicker {
  display: inline-block; padding: .25rem .625rem;
  background: var(--c-line-soft); color: var(--c-ink-soft);
  font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em;
  border-radius: 999px;
}

.kicker-work  { background: var(--c-work-soft);  color: var(--c-work-deep); }
.kicker-life  { background: var(--c-life-soft);  color: var(--c-life-deep); }
.kicker-sleep { background: var(--c-sleep-soft); color: var(--c-sleep-deep); }

/* ---------- Card grids ---------- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.25rem; }
.card-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }

.card {
  display: block; padding: 1.5rem; background: var(--c-bg-card);
  border: 1px solid var(--c-line); border-radius: var(--radius);
  text-decoration: none; color: inherit;
  transition: transform .18s, box-shadow .18s, border-color .18s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--c-ink); }
.card h3 { margin: .5rem 0; font-size: 1.125rem; }
.card p  { color: var(--c-ink-soft); font-size: .9375rem; margin: 0; }
.card .kicker { margin-bottom: .5rem; }

.card-pillar-work  { border-top: 3px solid var(--c-work); }
.card-pillar-life  { border-top: 3px solid var(--c-life); }
.card-pillar-sleep { border-top: 3px solid var(--c-sleep); }
.card-pillar-cross { border-top: 3px solid var(--c-mute); }

/* Featured card (signature tool) */
.card-feature {
  background: linear-gradient(135deg, #1f2937 0%, #312e81 100%);
  color: #fff; padding: 2rem; border-radius: var(--radius-lg);
  border: 0;
}
.card-feature h3 { color: #fff; font-size: 1.5rem; }
.card-feature p  { color: rgba(255,255,255,.85); }

/* ---------- Article (essay/guide) ---------- */
.article {
  max-width: 44rem; margin: 0 auto; padding: 3rem 1.25rem;
}
.article-header { margin-bottom: 2rem; }
.article-meta { display: flex; gap: .75rem; align-items: center; color: var(--c-mute); font-size: .875rem; margin-bottom: 1rem; }
.article-title { font-size: clamp(2rem, 4vw, 2.875rem); margin-bottom: .75rem; }
.article-dek { font-size: 1.1875rem; color: var(--c-ink-soft); line-height: 1.55; margin-bottom: 1.5rem; }
.article-byline { display: flex; align-items: center; gap: .875rem; padding: 1rem 0; border-top: 1px solid var(--c-line); border-bottom: 1px solid var(--c-line); }
.article-byline-avatar { width: 48px; height: 48px; border-radius: 50%; background: var(--c-warm); display: grid; place-items: center; font-family: var(--serif); font-weight: 700; color: var(--c-ink); font-size: 1.125rem; flex: none; }
.article-byline-name { font-weight: 600; }
.article-byline-bio { color: var(--c-mute); font-size: .875rem; line-height: 1.4; margin: .125rem 0 0; }

.prose { font-family: var(--serif); font-size: 1.1875rem; line-height: 1.7; color: var(--c-ink); }
.prose p { margin: 0 0 1.25em; }
.prose h2 { font-size: 1.625rem; margin-top: 2.25em; margin-bottom: .5em; }
.prose h3 { font-size: 1.25rem; margin-top: 1.75em; }
.prose ul, .prose ol { padding-left: 1.5em; margin: 0 0 1.25em; }
.prose li { margin-bottom: .375em; }
.prose blockquote {
  margin: 2em 0; padding: .25em 1.25em;
  border-left: 4px solid var(--c-sleep); background: var(--c-sleep-soft);
  font-style: italic; color: var(--c-ink-soft); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.prose code { background: var(--c-line-soft); padding: .15em .35em; border-radius: 4px; font-size: .9em; }
.prose hr { border: 0; height: 1px; background: var(--c-line); margin: 2.5em 0; }
.prose a { color: var(--c-sleep); }

/* ---------- Author byline footer block ---------- */
.author-card {
  margin: 3rem 0 0; padding: 1.5rem;
  background: var(--c-bg-card); border: 1px solid var(--c-line); border-radius: var(--radius);
  display: flex; gap: 1rem;
}
.author-card-avatar { width: 64px; height: 64px; border-radius: 50%; background: var(--c-warm); flex: none; display: grid; place-items: center; font-family: var(--serif); font-weight: 700; font-size: 1.5rem; }
.author-card h4 { margin: 0 0 .25rem; }
.author-card p { color: var(--c-ink-soft); margin: 0 0 .5rem; font-size: .9375rem; }

/* ---------- Pillar hub ---------- */
.pillar-hero { padding: 4rem 0 3rem; }
.pillar-hero-work  { background: linear-gradient(180deg, var(--c-work-soft), var(--c-bg)); }
.pillar-hero-life  { background: linear-gradient(180deg, var(--c-life-soft), var(--c-bg)); }
.pillar-hero-sleep { background: linear-gradient(180deg, var(--c-sleep-soft), var(--c-bg)); }
.pillar-hero h1 { font-size: clamp(2.25rem, 4.5vw, 3.5rem); }
.pillar-hero-lede { font-size: 1.1875rem; max-width: 36rem; color: var(--c-ink-soft); }

/* ---------- Forms ---------- */
.form { display: grid; gap: 1rem; }
.form-row { display: grid; gap: .375rem; }
.form-row label { font-weight: 600; font-size: .9375rem; }
.form-row input, .form-row textarea, .form-row select {
  width: 100%; padding: .75rem .875rem; font: inherit;
  border: 1px solid var(--c-line); border-radius: var(--radius-sm); background: #fff;
}
.form-row input:focus, .form-row textarea:focus { border-color: var(--c-sleep); outline: 0; box-shadow: 0 0 0 3px rgba(79,70,229,.15); }
.form-row textarea { min-height: 200px; resize: vertical; }
.form-help { color: var(--c-mute); font-size: .8125rem; }
.form-error { background: #fee2e2; color: #991b1b; padding: .75rem 1rem; border-radius: var(--radius-sm); font-size: .9375rem; }
.form-success { background: var(--c-life-soft); color: var(--c-life-deep); padding: .75rem 1rem; border-radius: var(--radius-sm); font-size: .9375rem; }

/* ---------- Tool UI ---------- */
.tool-shell { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 2rem; }
.slider-row { margin-bottom: 1.5rem; }
.slider-row label { display: flex; justify-content: space-between; font-weight: 600; margin-bottom: .375rem; }
.slider-row input[type="range"] { width: 100%; }
.score-display { font-family: var(--serif); font-size: 4rem; font-weight: 700; line-height: 1; }

/* ---------- Newsletter form ---------- */
.newsletter-form { display: grid; gap: .625rem; }
.newsletter-heading { font-family: var(--serif); font-size: 1.5rem; margin: 0 0 .25rem; color: var(--c-ink); }
.newsletter-tagline { color: var(--c-ink-soft); margin: 0 0 .25rem; font-size: .9375rem; }
.newsletter-input-row { display: flex; gap: .5rem; flex-wrap: wrap; }
.newsletter-input-row input[type=email] {
  flex: 1; min-width: 0;
  padding: .75rem .875rem; font: inherit;
  border: 1px solid var(--c-line); border-radius: var(--radius-sm); background: #fff;
}
.newsletter-input-row input[type=email]:focus { border-color: var(--c-sleep); outline: 0; box-shadow: 0 0 0 3px rgba(79,70,229,.15); }
.newsletter-input-row .btn { white-space: nowrap; }
.newsletter-msg { font-size: .875rem; min-height: 1.25em; }
.newsletter-msg.ok    { color: var(--c-life); }
.newsletter-msg.err   { color: #dc2626; }

/* When the form sits in the dark prefooter section: */
.prefooter .newsletter-input-row input[type=email] { background: rgba(255,255,255,.95); border-color: transparent; }
.prefooter .newsletter-msg.ok  { color: #86efac; }
.prefooter .newsletter-msg.err { color: #fca5a5; }

/* ---------- Prefooter ---------- */
.prefooter {
  background: linear-gradient(135deg, #0f172a 0%, #312e81 100%);
  color: #fff; padding: 4rem 0;
}
.prefooter-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 3rem; align-items: center; }
.prefooter h2 { color: #fff; font-size: 2rem; margin-bottom: .75rem; }
.prefooter p { color: rgba(255,255,255,.85); margin-bottom: 1.5rem; }
.prefooter .kicker { background: rgba(255,255,255,.1); color: rgba(255,255,255,.8); margin-bottom: .75rem; }
.prefooter-philosophy p:last-child { margin-bottom: 0; font-size: .9375rem; line-height: 1.6; }

/* ---------- Footer ---------- */
.site-footer { background: #0f172a; color: rgba(255,255,255,.8); padding: 3.5rem 0 1.5rem; }
.site-footer .brand { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; }
.footer-about { color: rgba(255,255,255,.6); font-size: .9375rem; margin-top: .75rem; max-width: 22rem; }
.site-footer h4 { color: #fff; font-size: .8125rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: .875rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: .5rem; }
.site-footer a { color: rgba(255,255,255,.7); text-decoration: none; font-size: .9375rem; }
.site-footer a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 2.5rem; padding-top: 1.5rem; color: rgba(255,255,255,.5); font-size: .875rem; }
.footer-divider { margin: 0 .5rem; }

/* ---------- AdSense placeholder ---------- */
.ad-slot {
  margin: 2.5rem auto; padding: .5rem 0; max-width: 728px; min-height: 90px;
  display: grid; place-items: center; color: var(--c-mute); font-size: .8125rem;
  border: 1px dashed var(--c-line); border-radius: var(--radius-sm);
}
.ad-slot:empty::before { content: 'advertisement'; }

/* ---------- Mobile ---------- */
@media (max-width: 1024px) {
  .mobile-toggle { display: block; }
  .nav-main {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--c-line); padding: .75rem 1.25rem;
    box-shadow: var(--shadow-md);
  }
  .nav-main.open { display: flex; }
  .nav-main a { padding: .75rem 0; border-bottom: 1px solid var(--c-line-soft); }
  .nav-sep { display: none; }
  .nav-cta { width: max-content; margin: .5rem 0; }
}

@media (max-width: 880px) {
  .hero-grid, .prefooter-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .card-grid-3 { grid-template-columns: 1fr; }
  .triangle-svg { max-width: 320px; margin: 0 auto; }
}

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr; }
  .article { padding: 2rem 1.25rem; }
}