/* ===================================
   TREE SERVICE CANMORE — BASE
   Direction: rugged mountain-town craftsman (see DESIGN.md).
   Forest green + charcoal carry the brand; ember amber is reserved for CTAs.
   Never put white text on amber.
   =================================== */

:root {
  /* Colours (DESIGN.md) */
  --color-primary: #1f3a2b;
  --color-primary-dark: #142619;
  --color-primary-ink: #ffffff;
  --color-charcoal: #22252a;
  --color-accent: #d9822b;
  --color-accent-dark: #b5661a;
  --color-accent-ink: #22252a;
  --color-stone: #f3f1ec;
  --color-moss: #5f7a4f;
  --color-ink: #22252a;
  --color-body: #2b2e33;
  --color-text: #2b2e33;
  --color-muted: #5d636b;
  --color-line: #d9dcd2;
  --color-line-moss: rgba(95, 122, 79, 0.35);
  --color-bg: #fbfaf7;
  --color-bg-alt: #f3f1ec;
  --color-success: #2f6b3a;
  --color-error: #b91c1c;

  /* Typography */
  --font-heading: 'Oswald', 'Arial Narrow', system-ui, sans-serif;
  --font-body: 'Source Sans 3', system-ui, sans-serif;

  /* Scale */
  --fs-h1: clamp(2.375rem, 5vw, 3.75rem);
  --fs-h2: clamp(1.75rem, 3.5vw, 2.5rem);
  --fs-h3: clamp(1.25rem, 2vw, 1.5rem);
  --fs-body: 1.0625rem;
  --fs-small: 0.875rem;

  /* Spacing (8px base) */
  --s-1: 0.5rem;
  --s-2: 1rem;
  --s-3: 1.5rem;
  --s-4: 2rem;
  --s-5: 3rem;
  --s-6: 4rem;
  --s-7: 6rem;
  --s-8: 8rem;

  /* Layout */
  --container: 1200px;
  --container-narrow: 800px;
  --header-h: 72px;

  /* Shape: 6px on cards and buttons, no pills */
  --radius: 6px;
  --shadow-sm: 0 1px 2px rgba(20, 38, 25, 0.08);
  --shadow-md: 0 6px 18px rgba(20, 38, 25, 0.10);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 0.15s;
  --dur-med: 0.3s;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transform: none !important;
  }
}
body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--color-body);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img, picture, svg, video { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; }
a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
a:hover { text-decoration: none; }
:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.15;
  color: var(--color-charcoal);
  letter-spacing: 0.01em;
}
h1 { font-size: var(--fs-h1); font-weight: 700; margin-bottom: var(--s-3); }
h2 { font-size: var(--fs-h2); margin-bottom: var(--s-3); }
h3 { font-size: var(--fs-h3); font-weight: 600; margin-bottom: var(--s-2); }
h4 { font-size: 1.125rem; font-weight: 600; margin-bottom: var(--s-2); }

.overline {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--color-moss);
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--s-3);
}
.container-narrow { max-width: var(--container-narrow); }

section { padding-block: var(--s-6); }
@media (min-width: 768px) { section { padding-block: var(--s-7); } }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-1);
  padding: 0.875rem 1.75rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.0625rem;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}
.btn-primary:hover { background: var(--color-accent-dark); color: var(--color-accent-ink); }
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-secondary:hover { background: var(--color-primary); color: var(--color-primary-ink); }
.btn-call {
  background: var(--color-primary);
  color: var(--color-primary-ink);
  border-color: var(--color-primary);
}
.btn-call:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-primary);
  color: var(--color-primary-ink);
  border-bottom: 1px solid var(--color-primary-dark);
  height: var(--header-h);
}
.site-header > .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.site-header nav { display: none; gap: var(--s-3); }
.site-header nav a { text-decoration: none; font-weight: 600; color: var(--color-primary-ink); }
.site-header nav a:hover { color: var(--color-accent); }
@media (min-width: 768px) { .site-header nav { display: flex; } }

.header-call { display: inline-flex; align-items: center; gap: var(--s-1); padding: 0.625rem 1rem; background: var(--color-accent); color: var(--color-accent-ink); text-decoration: none; font-family: var(--font-heading); font-weight: 600; letter-spacing: 0.03em; border-radius: var(--radius); transition: background-color var(--dur-fast) var(--ease-out); }
.header-call:hover { background: var(--color-accent-dark); }
.header-call span { display: none; }
@media (min-width: 480px) { .header-call span { display: inline; } }

/* Hero */
.hero {
  background: var(--color-stone);
  padding-block: var(--s-5);
}
@media (min-width: 768px) {
  .hero { padding-block: var(--s-6); }
  .hero .container { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--s-5); align-items: center; }
}
.hero h1 { margin-bottom: var(--s-3); }
.hero .subhead { font-size: 1.25rem; color: var(--color-body); margin-bottom: var(--s-3); max-width: 52ch; }
.hero .trust-pill { display: inline-flex; align-items: center; gap: var(--s-1); padding: 0.5rem 1rem; background: var(--color-primary); color: var(--color-primary-ink); font-weight: 600; font-size: 0.875rem; margin-bottom: var(--s-3); border-radius: var(--radius); }

/* Lead form card */
.lead-form {
  background: #fff;
  padding: var(--s-3);
  border: 1px solid var(--color-line-moss);
  border-top: 4px solid var(--color-primary);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}
.lead-form h2 { font-size: 1.5rem; margin-bottom: var(--s-3); }
.lead-form .form-row { display: grid; gap: var(--s-2); margin-bottom: var(--s-2); }
.lead-form label { display: block; font-weight: 600; font-size: 0.9375rem; margin-bottom: 0.25rem; color: var(--color-charcoal); }
.lead-form input, .lead-form select, .lead-form textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #c4c8bd;
  border-radius: var(--radius);
  background: #fff;
  font-size: 1rem;
  color: var(--color-text);
}
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus {
  outline: 3px solid rgba(217, 130, 43, 0.45);
  outline-offset: 1px;
  border-color: var(--color-primary);
}
.lead-form textarea { min-height: 100px; resize: vertical; }
.lead-form .btn { width: 100%; }
.lead-form .hp { position: absolute; left: -9999px; }
.lead-form .form-note { font-size: 0.8125rem; color: var(--color-muted); margin-top: var(--s-1); text-align: center; }

/* Trust bar: stone background, moss accents */
.trust-bar { background: var(--color-stone); color: var(--color-charcoal); padding-block: var(--s-3); border-block: 1px solid var(--color-line-moss); }
.trust-bar ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-2);
  text-align: center;
}
@media (min-width: 768px) { .trust-bar ul { grid-template-columns: repeat(5, 1fr); } }
.trust-bar li { font-weight: 600; font-size: 0.9375rem; }
.trust-bar li span { display: block; font-family: var(--font-heading); font-size: 1.375rem; color: var(--color-moss); margin-bottom: 0.25rem; }

/* Services grid */
.services-grid { display: grid; grid-template-columns: 1fr; gap: var(--s-3); }
@media (min-width: 640px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .services-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 640px) { .service-card--wide { grid-column: span 2; } }
.service-card {
  display: block;
  padding: var(--s-3);
  background: #fff;
  border: 1px solid var(--color-line-moss);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.service-card:hover { border-color: var(--color-moss); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.service-card h3 { margin-bottom: var(--s-2); }
.service-card .arrow { display: inline-block; margin-top: var(--s-2); font-family: var(--font-heading); font-weight: 600; letter-spacing: 0.03em; color: var(--color-primary); }
.service-card:hover .arrow { color: var(--color-accent-dark); }

/* Social proof */
.reviews { background: var(--color-bg-alt); }
.reviews-grid { display: grid; grid-template-columns: 1fr; gap: var(--s-3); }
@media (min-width: 768px) { .reviews-grid { grid-template-columns: repeat(3, 1fr); } }
.review-card--wide { grid-column: span 2; }
.review-card { background: #fff; padding: var(--s-3); border: 1px solid var(--color-line-moss); border-radius: var(--radius); }
.review-card .stars { color: var(--color-accent); font-size: 1.125rem; margin-bottom: var(--s-1); letter-spacing: 2px; }
.review-card blockquote { font-style: italic; margin-bottom: var(--s-2); }
.review-card cite { font-style: normal; font-weight: 700; display: block; }
.review-card cite span { display: block; font-weight: 400; font-size: 0.875rem; color: var(--color-muted); }

/* FAQ */
.faq details {
  border-bottom: 1px solid var(--color-line-moss);
  padding-block: var(--s-2);
}
.faq summary {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1875rem;
  color: var(--color-charcoal);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 2rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 0;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-moss);
}
.faq details[open] summary::after { content: '−'; }
.faq details p { margin-top: var(--s-2); }

/* Final CTA: forest green with amber button */
.cta-band {
  background: var(--color-primary);
  color: var(--color-primary-ink);
  text-align: center;
}
.cta-band h2 { color: var(--color-primary-ink); margin-bottom: var(--s-3); }
.cta-band p { font-size: 1.125rem; margin-bottom: var(--s-3); color: rgba(255, 255, 255, 0.88); }
.cta-band .btn-call { background: transparent; border-color: rgba(255, 255, 255, 0.85); }
.cta-band .btn-call:hover { background: var(--color-primary-ink); color: var(--color-primary); }

/* Footer: deep spruce */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.88);
  padding-block: var(--s-5) var(--s-3);
  font-size: 0.9375rem;
}
.site-footer a { color: #fff; }
.site-footer a:hover { color: var(--color-accent); }
.site-footer .footer-grid {
  display: grid;
  gap: var(--s-4);
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .site-footer .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}
.site-footer .footer-heading { color: #fff; margin-bottom: var(--s-2); font-size: 1rem; text-transform: uppercase; letter-spacing: 0.08em; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 0.5rem; }
.site-footer .footer-bottom {
  margin-top: var(--s-4);
  padding-top: var(--s-3);
  border-top: 1px solid rgba(255,255,255,0.15);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--s-2);
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.7);
}

/* Sticky mobile CTA */
.mobile-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding-bottom: env(safe-area-inset-bottom);
  background: var(--color-primary-dark);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}
.mobile-cta.visible { transform: translateY(0); }
.mobile-cta a {
  padding: 1rem;
  text-align: center;
  text-decoration: none;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 1rem;
  font-family: var(--font-heading);
}
.mobile-cta .call { background: var(--color-primary); color: var(--color-primary-ink); }
.mobile-cta .quote { background: var(--color-accent); color: var(--color-accent-ink); }
@media (min-width: 768px) { .mobile-cta { display: none; } }

/* Breadcrumbs */
.breadcrumbs {
  padding-block: var(--s-2);
  font-size: 0.875rem;
  color: var(--color-muted);
}
.breadcrumbs a { color: var(--color-muted); }
.breadcrumbs a:hover { color: var(--color-primary); }
.breadcrumbs span[aria-current] { color: var(--color-charcoal); font-weight: 600; }

/* Utility */
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.text-center { text-align: center; }
.mb-3 { margin-bottom: var(--s-3); }