/* ==========================================================================
   CHANGE HOME SERVICES — MARKETING SITE STYLES
   Built on design/tokens/tokens.css (tokens inlined below, single request).
   ========================================================================== */

/* ---------- 1. DESIGN TOKENS (from design/tokens/tokens.css) ---------- */
:root {
  --chs-color-accent-50:  #EBF1FE;
  --chs-color-accent-100: #D3E0FC;
  --chs-color-accent-200: #A8C2F9;
  --chs-color-accent-300: #7CA3F5;
  --chs-color-accent-400: #4A7CEF;
  --chs-color-accent-500: #1E5AE8;
  --chs-color-accent-600: #1849C4;
  --chs-color-accent-700: #1339A0;
  --chs-color-accent-800: #0F2E7D;
  --chs-color-accent-900: #0A1F57;

  --chs-color-charcoal-50:  #F4F5F6;
  --chs-color-charcoal-100: #E7E9EB;
  --chs-color-charcoal-200: #D1D5D9;
  --chs-color-charcoal-300: #AEB4BB;
  --chs-color-charcoal-400: #848C95;
  --chs-color-charcoal-500: #5D6670;
  --chs-color-charcoal-600: #444C56;
  --chs-color-charcoal-700: #313842;
  --chs-color-charcoal-800: #21262E;
  --chs-color-charcoal-900: #14171C;

  --chs-color-greige-50:  #FBFAF8;
  --chs-color-greige-100: #F5F2EE;
  --chs-color-greige-200: #EDE8E1;
  --chs-color-greige-300: #E1D9CE;
  --chs-color-greige-400: #C9BEAE;
  --chs-color-greige-500: #A89C87;

  --chs-color-white: #FFFFFF;

  --chs-color-success-bg:    #E4F5EA;
  --chs-color-success-solid: #1E9E4C;
  --chs-color-success-text:  #17753A;
  --chs-color-warning-bg:    #FCF1DA;
  --chs-color-warning-solid: #E0951A;
  --chs-color-warning-text:  #94620D;
  --chs-color-error-bg:      #FBE7E6;
  --chs-color-error-solid:   #D33B2C;
  --chs-color-error-text:    #A6291D;

  --chs-surface-app-bg:        var(--chs-color-greige-50);
  --chs-surface-card:          var(--chs-color-white);
  --chs-surface-card-alt:      var(--chs-color-greige-100);
  --chs-surface-sunken:        var(--chs-color-greige-200);
  --chs-surface-dark:          var(--chs-color-charcoal-900);
  --chs-surface-border:        var(--chs-color-greige-300);
  --chs-surface-border-strong: var(--chs-color-charcoal-200);

  --chs-text-primary:   var(--chs-color-charcoal-900);
  --chs-text-secondary: var(--chs-color-charcoal-600);
  --chs-text-muted:     var(--chs-color-charcoal-400);
  --chs-text-inverse:   var(--chs-color-white);
  --chs-text-link:      var(--chs-color-accent-600);

  --chs-space-1: 4px;  --chs-space-2: 8px;   --chs-space-3: 12px;
  --chs-space-4: 16px; --chs-space-5: 20px;  --chs-space-6: 24px;
  --chs-space-8: 32px; --chs-space-10: 40px; --chs-space-12: 48px;
  --chs-space-16: 64px; --chs-space-20: 80px; --chs-space-24: 96px;

  --chs-radius-sm: 8px; --chs-radius-md: 12px; --chs-radius-lg: 16px;
  --chs-radius-xl: 20px; --chs-radius-full: 999px;

  --chs-font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --chs-font-family-display: 'Fraunces', Georgia, 'Times New Roman', serif;

  --chs-shadow-sm: 0 2px 6px rgba(20,23,28,.07), 0 1px 2px rgba(20,23,28,.05);
  --chs-shadow-md: 0 6px 16px rgba(20,23,28,.09), 0 2px 4px rgba(20,23,28,.06);
  --chs-shadow-lg: 0 12px 28px rgba(20,23,28,.12), 0 4px 8px rgba(20,23,28,.06);
  --chs-shadow-focus: 0 0 0 4px rgba(30,90,232,.28);

  --chs-touch-comfortable: 48px;
  --chs-touch-large: 56px;
  --chs-transition-base: 200ms ease;
}

/* ---------- 2. BASE ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--chs-font-family-base);
  font-size: 17px;
  line-height: 1.6;
  color: var(--chs-text-primary);
  background: var(--chs-surface-app-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: var(--chs-text-link); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: none; box-shadow: var(--chs-shadow-focus); border-radius: var(--chs-radius-sm);
}

h1, h2, h3 { line-height: 1.15; margin: 0 0 var(--chs-space-4); }
h1 {
  font-family: var(--chs-font-family-display);
  font-weight: 600;
  font-size: clamp(34px, 6vw, 56px);
  letter-spacing: -0.01em;
}
h2 {
  font-family: var(--chs-font-family-display);
  font-weight: 600;
  font-size: clamp(26px, 4vw, 38px);
}
h3 { font-size: 20px; font-weight: 700; }
p { margin: 0 0 var(--chs-space-4); }
.lead { font-size: 20px; color: var(--chs-text-secondary); }
.muted { color: var(--chs-text-muted); }
.center { text-align: center; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 var(--chs-space-5); }
.container--narrow { max-width: 760px; }
section { padding: var(--chs-space-20) 0; }
section.tight { padding: var(--chs-space-12) 0; }
.section-alt { background: var(--chs-color-greige-100); }
.section-dark { background: var(--chs-surface-dark); color: var(--chs-text-inverse); }
.section-dark h2 { color: var(--chs-text-inverse); }
.section-dark p { color: var(--chs-color-charcoal-200); }

.eyebrow {
  display: inline-block;
  font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--chs-color-accent-600);
  margin-bottom: var(--chs-space-3);
}
.section-dark .eyebrow { color: var(--chs-color-accent-300); }

/* ---------- 3. BUTTONS ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: var(--chs-touch-comfortable);
  padding: 0 var(--chs-space-6);
  border-radius: var(--chs-radius-md);
  border: 2px solid transparent;
  font-family: var(--chs-font-family-base);
  font-size: 17px; font-weight: 600; text-decoration: none; cursor: pointer;
  transition: background var(--chs-transition-base), border-color var(--chs-transition-base);
}
.btn--primary { background: var(--chs-color-accent-500); color: var(--chs-text-inverse); }
.btn--primary:hover { background: var(--chs-color-accent-600); }
.btn--primary:active { background: var(--chs-color-accent-700); }
.btn--secondary {
  background: transparent; color: var(--chs-color-accent-700);
  border-color: var(--chs-color-accent-300);
}
.btn--secondary:hover { background: var(--chs-color-accent-50); }
.btn--inverse { background: var(--chs-color-white); color: var(--chs-color-accent-800); }
.btn--inverse:hover { background: var(--chs-color-greige-100); }
.btn--lg { min-height: var(--chs-touch-large); padding: 0 var(--chs-space-8); font-size: 18px; }
.btn-row { display: flex; gap: var(--chs-space-4); flex-wrap: wrap; }
.btn-note { font-size: 14px; color: var(--chs-text-muted); margin-top: var(--chs-space-3); }
.section-dark .btn-note { color: var(--chs-color-charcoal-300); }

/* ---------- 4. HEADER / NAV ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(251,250,248,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--chs-surface-border);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 68px; gap: var(--chs-space-4);
}
.nav__logo img { height: 100px; width: auto; max-width: 70vw; object-fit: contain; display: block; }
.nav__links {
  display: flex; align-items: center; gap: var(--chs-space-6);
  list-style: none; margin: 0; padding: 0;
}
.nav__links a:not(.btn) {
  color: var(--chs-text-primary); text-decoration: none; font-weight: 500; font-size: 16px;
  padding: var(--chs-space-2) 0;
}
.nav__links a:not(.btn):hover { color: var(--chs-color-accent-600); }
.nav__toggle {
  display: none; background: none; border: 0; cursor: pointer;
  padding: var(--chs-space-2); min-height: 44px; min-width: 44px;
}
.nav__toggle span {
  display: block; width: 24px; height: 2px; background: var(--chs-text-primary);
  margin: 5px 0; transition: transform var(--chs-transition-base);
}

/* dropdown (Trades) */
.nav__item--dropdown { position: relative; }
.nav__dropbtn {
  background: none; border: 0; cursor: pointer;
  font: inherit; font-weight: 500; font-size: 16px; color: var(--chs-text-primary);
  padding: var(--chs-space-2) 0; min-height: 44px;
  display: inline-flex; align-items: center; gap: 6px;
}
.nav__dropbtn::after { content: "▾"; font-size: 12px; }
.nav__dropdown {
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%);
  background: var(--chs-surface-card); border: 1px solid var(--chs-surface-border);
  border-radius: var(--chs-radius-md); box-shadow: var(--chs-shadow-md);
  list-style: none; margin: 0; padding: var(--chs-space-2);
  min-width: 190px; display: none;
}
.nav__item--dropdown.open .nav__dropdown { display: block; }
.nav__dropdown a {
  display: block; padding: var(--chs-space-2) var(--chs-space-4);
  border-radius: var(--chs-radius-sm); white-space: nowrap;
}
.nav__dropdown a:hover { background: var(--chs-color-accent-50); }

/* ---------- 5. HERO ---------- */
.hero { padding: var(--chs-space-24) 0 var(--chs-space-20); }
.hero .lead { max-width: 640px; }
.hero--center { text-align: center; }
.hero--center .lead, .hero--center .btn-row { margin-left: auto; margin-right: auto; justify-content: center; }

/* ---------- 6. CARDS & GRIDS ---------- */
.grid { display: grid; gap: var(--chs-space-6); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--chs-surface-card);
  border: 1px solid var(--chs-surface-border);
  border-radius: var(--chs-radius-lg);
  padding: var(--chs-space-8);
  box-shadow: var(--chs-shadow-sm);
}
.card h3 { margin-top: 0; }
.card--flat { box-shadow: none; }
.card__num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: var(--chs-radius-full);
  background: var(--chs-color-accent-50); color: var(--chs-color-accent-700);
  font-weight: 800; font-size: 18px; margin-bottom: var(--chs-space-4);
}
.check-list { list-style: none; padding: 0; margin: 0 0 var(--chs-space-4); }
.check-list li {
  padding-left: 30px; position: relative; margin-bottom: var(--chs-space-3);
}
.check-list li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  color: var(--chs-color-success-solid); font-weight: 800;
}

/* big-number stat */
.stat { text-align: center; }
.stat__value {
  font-family: var(--chs-font-family-display);
  font-size: clamp(34px, 5vw, 48px); font-weight: 600;
  color: var(--chs-color-accent-700); display: block;
}
.section-dark .stat__value { color: var(--chs-color-accent-300); }
.stat__label { font-size: 15px; color: var(--chs-text-secondary); }
.section-dark .stat__label { color: var(--chs-color-charcoal-300); }

/* ---------- 7. PRICING ---------- */
.price-card { display: flex; flex-direction: column; }
.price-card--featured { border: 2px solid var(--chs-color-accent-500); box-shadow: var(--chs-shadow-lg); position: relative; }
.price-card__badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--chs-color-accent-500); color: #fff;
  font-size: 13px; font-weight: 700; padding: 3px 14px; border-radius: var(--chs-radius-full);
  white-space: nowrap;
}
.price-card__price { font-size: 44px; font-weight: 800; line-height: 1; }
.price-card__price small { font-size: 16px; font-weight: 500; color: var(--chs-text-muted); }
.price-card__annual { font-size: 14px; color: var(--chs-text-muted); margin-bottom: var(--chs-space-4); }
.price-card .btn { margin-top: auto; }

.addon-table { width: 100%; border-collapse: collapse; background: var(--chs-surface-card); border-radius: var(--chs-radius-lg); overflow: hidden; border: 1px solid var(--chs-surface-border); }
.addon-table th, .addon-table td { text-align: left; padding: var(--chs-space-4) var(--chs-space-5); border-bottom: 1px solid var(--chs-surface-border); }
.addon-table tr:last-child td { border-bottom: 0; }
.addon-table th { background: var(--chs-color-greige-100); font-size: 14px; text-transform: uppercase; letter-spacing: .05em; color: var(--chs-text-secondary); }
.addon-table td:last-child { font-weight: 700; white-space: nowrap; }

/* ---------- 8. FORMS ---------- */
.form-card { background: var(--chs-surface-card); border: 1px solid var(--chs-surface-border); border-radius: var(--chs-radius-xl); padding: var(--chs-space-8); box-shadow: var(--chs-shadow-md); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--chs-space-4); }
.form-field { margin-bottom: var(--chs-space-5); }
.form-field label { display: block; font-weight: 600; font-size: 15px; margin-bottom: var(--chs-space-2); }
.form-field .optional { font-weight: 400; color: var(--chs-text-muted); }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; min-height: var(--chs-touch-comfortable);
  padding: var(--chs-space-3) var(--chs-space-4);
  font: inherit; font-size: 16px;
  border: 1px solid var(--chs-surface-border-strong);
  border-radius: var(--chs-radius-sm);
  background: var(--chs-color-white);
  color: var(--chs-text-primary);
}
.form-field textarea { min-height: 96px; resize: vertical; }
.form-consent { font-size: 14px; color: var(--chs-text-secondary); margin: var(--chs-space-4) 0; }
.form-status { display: none; padding: var(--chs-space-4); border-radius: var(--chs-radius-md); margin-top: var(--chs-space-4); font-weight: 500; }
.form-status--success { display: block; background: var(--chs-color-success-bg); color: var(--chs-color-success-text); }
.form-status--error { display: block; background: var(--chs-color-error-bg); color: var(--chs-color-error-text); }

/* ---------- 9. FAQ ---------- */
.faq-item { background: var(--chs-surface-card); border: 1px solid var(--chs-surface-border); border-radius: var(--chs-radius-md); margin-bottom: var(--chs-space-3); }
.faq-item summary {
  cursor: pointer; font-weight: 600; padding: var(--chs-space-5) var(--chs-space-6);
  list-style: none; position: relative; padding-right: 48px; min-height: 44px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: var(--chs-space-6); top: 50%; transform: translateY(-50%); font-size: 22px; color: var(--chs-color-accent-600); }
.faq-item[open] summary::after { content: "–"; }
.faq-item .faq-body { padding: 0 var(--chs-space-6) var(--chs-space-5); color: var(--chs-text-secondary); }

/* ---------- 10. FOOTER ---------- */
.site-footer { background: var(--chs-surface-dark); color: var(--chs-color-charcoal-300); padding: var(--chs-space-16) 0 var(--chs-space-8); font-size: 15px; }
.site-footer a { color: var(--chs-color-charcoal-200); text-decoration: none; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--chs-space-8); margin-bottom: var(--chs-space-10); }
.footer-grid h4 { color: #fff; font-size: 14px; text-transform: uppercase; letter-spacing: .06em; margin: 0 0 var(--chs-space-4); }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: var(--chs-space-2); }
.footer-logo img { height: 30px; width: auto; filter: brightness(0) invert(1); opacity: .9; }
.footer-bottom { border-top: 1px solid var(--chs-color-charcoal-700); padding-top: var(--chs-space-6); display: flex; justify-content: space-between; gap: var(--chs-space-4); flex-wrap: wrap; font-size: 13px; color: var(--chs-color-charcoal-400); }

/* ---------- 11. RESPONSIVE ---------- */
@media (max-width: 900px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  section { padding: var(--chs-space-12) 0; }
  .hero { padding: var(--chs-space-12) 0; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .nav__toggle { display: block; }
  .nav__links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--chs-surface-card); border-bottom: 1px solid var(--chs-surface-border);
    flex-direction: column; align-items: stretch; padding: var(--chs-space-4) var(--chs-space-5) var(--chs-space-6);
    gap: var(--chs-space-2); box-shadow: var(--chs-shadow-md);
  }
  .nav__links.open { display: flex; }
  .nav__links a:not(.btn), .nav__dropbtn { display: flex; min-height: 44px; align-items: center; }
  .nav__dropdown { position: static; transform: none; display: block; border: 0; box-shadow: none; padding-left: var(--chs-space-4); }
  .btn { width: 100%; }
  .btn-row .btn { width: 100%; }
  .nav__links .btn { width: auto; }
}