/* ==========================================================================
   Summit Vent Solutions — Main Stylesheet
   Built with care. No frameworks, no bloat.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Brand palette */
  --color-primary-900: #0a2e44;
  --color-primary-800: #0f3d5c;
  --color-primary-700: #14506f;
  --color-primary-600: #1a6388;
  --color-primary-500: #2076a3;
  --color-primary-100: #e6f0f6;

  --color-accent-600:  #e07b1a;
  --color-accent-500:  #f08c2e;
  --color-accent-100:  #fdf0e1;

  --color-success-600: #1f8a4c;
  --color-success-100: #e6f5ec;

  --color-neutral-0:   #ffffff;
  --color-neutral-50:  #f7f9fb;
  --color-neutral-100: #eef2f5;
  --color-neutral-200: #dbe3ea;
  --color-neutral-300: #b9c4cf;
  --color-neutral-500: #6b7a87;
  --color-neutral-700: #3a4754;
  --color-neutral-900: #131c25;

  /* Semantic */
  --bg-page:        var(--color-neutral-0);
  --bg-muted:       var(--color-neutral-50);
  --bg-elevated:    var(--color-neutral-0);
  --text-primary:   var(--color-neutral-900);
  --text-secondary: var(--color-neutral-700);
  --text-muted:     var(--color-neutral-500);
  --border:         var(--color-neutral-200);
  --link:           var(--color-primary-700);
  --link-hover:     var(--color-primary-500);

  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
                  Roboto, sans-serif;

  --fs-xs:   0.8125rem;  /* 13 */
  --fs-sm:   0.9375rem;  /* 15 */
  --fs-base: 1rem;       /* 16 */
  --fs-lg:   1.125rem;   /* 18 */
  --fs-xl:   1.375rem;   /* 22 */
  --fs-2xl:  1.75rem;    /* 28 */
  --fs-3xl:  2.25rem;    /* 36 */
  --fs-4xl:  3rem;       /* 48 */
  --fs-5xl:  3.75rem;    /* 60 */

  --lh-tight:  1.15;
  --lh-snug:   1.3;
  --lh-normal: 1.55;
  --lh-loose:  1.7;

  /* Spacing scale (8pt grid) */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.5rem;
  --space-6:  2rem;
  --space-7:  2.5rem;
  --space-8:  3rem;
  --space-10: 4rem;
  --space-12: 5rem;
  --space-16: 7rem;

  /* Layout */
  --container-max:  1200px;
  --container-pad:  1.25rem;

  /* Effects */
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --radius-xl:  24px;

  --shadow-sm:  0 1px 2px rgba(15, 61, 92, 0.06),
                0 1px 3px rgba(15, 61, 92, 0.08);
  --shadow-md:  0 4px 8px rgba(15, 61, 92, 0.06),
                0 8px 16px rgba(15, 61, 92, 0.08);
  --shadow-lg:  0 10px 20px rgba(15, 61, 92, 0.08),
                0 20px 40px rgba(15, 61, 92, 0.12);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

/* --------------------------------------------------------------------------
   2. Reset & base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--text-primary);
  background-color: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
svg,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover,
a:focus-visible {
  color: var(--link-hover);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-primary-500);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-4);
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--lh-tight);
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.25rem, 4.5vw, var(--fs-5xl)); }
h2 { font-size: clamp(1.75rem, 3vw, var(--fs-3xl)); }
h3 { font-size: var(--fs-2xl); }
h4 { font-size: var(--fs-xl); }
h5 { font-size: var(--fs-lg); }
h6 { font-size: var(--fs-base); }

p {
  margin: 0 0 var(--space-4);
}

ul, ol {
  margin: 0 0 var(--space-4);
  padding-left: 1.25rem;
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: var(--space-8) 0;
}

::selection {
  background-color: var(--color-primary-700);
  color: #fff;
}

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

.section {
  padding-block: clamp(3rem, 6vw, 5.5rem);
}

.section--muted {
  background-color: var(--bg-muted);
}

.section--dark {
  background-color: var(--color-primary-900);
  color: var(--color-neutral-100);
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: #fff;
}

.grid {
  display: grid;
  gap: var(--space-5);
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 900px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

.text-center { text-align: center; }
.muted       { color: var(--text-muted); }
.eyebrow {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-600);
  margin-bottom: var(--space-3);
}

/* --------------------------------------------------------------------------
   4. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.85rem 1.5rem;
  font-family: inherit;
  font-size: var(--fs-base);
  font-weight: 600;
  line-height: 1;
  text-align: center;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: transform var(--transition-fast),
              background-color var(--transition-fast),
              border-color var(--transition-fast),
              box-shadow var(--transition-fast),
              color var(--transition-fast);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background-color: var(--color-accent-600);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background-color: var(--color-accent-500);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background-color: var(--color-primary-800);
  color: #fff;
}

.btn--secondary:hover,
.btn--secondary:focus-visible {
  background-color: var(--color-primary-700);
  color: #fff;
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-primary-800);
  border-color: var(--color-primary-800);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background-color: var(--color-primary-800);
  color: #fff;
}

.btn--ghost-light {
  background-color: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}

.btn--ghost-light:hover,
.btn--ghost-light:focus-visible {
  background-color: #fff;
  color: var(--color-primary-900);
}

.btn--lg {
  padding: 1.05rem 1.85rem;
  font-size: var(--fs-lg);
}

.btn--block {
  width: 100%;
}

/* --------------------------------------------------------------------------
   5. Header & navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  padding-block: var(--space-3);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-primary-900);
  font-weight: 800;
  font-size: var(--fs-lg);
  letter-spacing: -0.01em;
}

.brand:hover,
.brand:focus-visible {
  color: var(--color-primary-700);
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg,
              var(--color-primary-700),
              var(--color-primary-500));
  color: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-text small {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  display: inline-block;
  padding: var(--space-2) var(--space-1);
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--color-primary-800);
}

.nav-list a.active {
  color: var(--color-primary-800);
  font-weight: 600;
}

.nav-list a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background-color: var(--color-accent-600);
  border-radius: 1px;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  color: var(--color-primary-900);
}

.header-cta .icon {
  width: 18px;
  height: 18px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.nav-toggle .bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-primary-900);
  position: relative;
  transition: background-color var(--transition-fast);
}

.nav-toggle .bar::before,
.nav-toggle .bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background-color: var(--color-primary-900);
  transition: transform var(--transition-base);
}

.nav-toggle .bar::before { top: -7px; }
.nav-toggle .bar::after  { top: 7px; }

body.nav-open .nav-toggle .bar { background-color: transparent; }
body.nav-open .nav-toggle .bar::before {
  transform: translateY(7px) rotate(45deg);
}
body.nav-open .nav-toggle .bar::after {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }

  .primary-nav {
    position: absolute;
    inset: 100% 0 auto 0;
    background-color: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
  }

  body.nav-open .primary-nav {
    max-height: 70vh;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-3) var(--container-pad);
  }

  .nav-list li { border-top: 1px solid var(--border); }
  .nav-list li:first-child { border-top: 0; }
  .nav-list a {
    display: block;
    padding: var(--space-4) 0;
  }

  .header-cta .label { display: none; }
}

/* --------------------------------------------------------------------------
   6. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 20%,
      rgba(32, 118, 163, 0.20),
      transparent 55%),
    radial-gradient(circle at 85% 75%,
      rgba(224, 123, 26, 0.18),
      transparent 50%),
    linear-gradient(135deg,
      var(--color-primary-900) 0%,
      var(--color-primary-700) 100%);
  color: #fff;
  padding-block: clamp(4rem, 9vw, 7rem);
}

.hero h1 {
  color: #fff;
  max-width: 18ch;
}

.hero p.lead {
  font-size: var(--fs-lg);
  color: rgba(255, 255, 255, 0.85);
  max-width: 56ch;
  line-height: var(--lh-loose);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-8);
  align-items: center;
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.9);
}

.trust-item .check {
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: var(--color-success-600);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Hero card visual */
.hero-card {
  position: relative;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow-lg);
}

.hero-card h3 {
  color: #fff;
  margin-bottom: var(--space-2);
}

.hero-card .quote-cta {
  margin-top: var(--space-5);
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.85);
}

.hero-card .quote-cta strong {
  color: var(--color-accent-500);
  font-size: var(--fs-2xl);
  display: block;
  margin-top: var(--space-1);
  font-weight: 800;
}

.hero-card ul {
  list-style: none;
  padding: 0;
  margin: var(--space-5) 0 0;
  display: grid;
  gap: var(--space-3);
}

.hero-card li {
  display: flex;
  gap: var(--space-3);
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.9);
  line-height: var(--lh-snug);
}

.hero-card li .ico {
  flex: 0 0 24px;
  color: var(--color-accent-500);
}

/* --------------------------------------------------------------------------
   7. Page header (for non-home pages)
   -------------------------------------------------------------------------- */
.page-header {
  background:
    linear-gradient(135deg,
      var(--color-primary-900) 0%,
      var(--color-primary-700) 100%);
  color: #fff;
  padding-block: clamp(3rem, 6vw, 5rem);
}

.page-header h1 {
  color: #fff;
  margin-bottom: var(--space-3);
}

.page-header p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 65ch;
  font-size: var(--fs-lg);
}

.breadcrumbs {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: var(--space-4);
}

.breadcrumbs a {
  color: rgba(255, 255, 255, 0.85);
}

.breadcrumbs a:hover {
  color: #fff;
}

.breadcrumbs span[aria-hidden="true"] {
  margin-inline: 0.5rem;
  opacity: 0.6;
}

/* --------------------------------------------------------------------------
   8. Cards
   -------------------------------------------------------------------------- */
.card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--transition-base),
              box-shadow var(--transition-base),
              border-color var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-100);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary-100);
  color: var(--color-primary-800);
  margin-bottom: var(--space-4);
}

.card h3 {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-2);
}

.card p {
  color: var(--text-secondary);
  margin-bottom: 0;
  line-height: var(--lh-loose);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: var(--space-4);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   9. Service list / detail
   -------------------------------------------------------------------------- */
.service-row {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: var(--space-5);
  align-items: start;
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--border);
}

.service-row:last-child { border-bottom: 0; }

.service-row .number {
  font-size: var(--fs-2xl);
  font-weight: 800;
  color: var(--color-accent-600);
  line-height: 1;
}

.service-row h3 {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-2);
}

.service-row p {
  color: var(--text-secondary);
  margin-bottom: var(--space-3);
}

.service-row ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2) var(--space-4);
}

.service-row li {
  position: relative;
  padding-left: 1.4rem;
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

.service-row li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-primary-500);
}

@media (max-width: 720px) {
  .service-row {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  .service-row ul {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   10. Stats strip
   -------------------------------------------------------------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  text-align: center;
}

.stats .stat-num {
  display: block;
  font-size: clamp(2rem, 4vw, var(--fs-4xl));
  font-weight: 800;
  color: var(--color-accent-600);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stats .stat-label {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

@media (max-width: 700px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
}

/* --------------------------------------------------------------------------
   11. Testimonials
   -------------------------------------------------------------------------- */
.testimonial {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.testimonial .stars {
  color: var(--color-accent-600);
  margin-bottom: var(--space-3);
  font-size: var(--fs-lg);
  letter-spacing: 0.05em;
}

.testimonial blockquote {
  margin: 0 0 var(--space-5);
  font-size: var(--fs-base);
  line-height: var(--lh-loose);
  color: var(--text-primary);
  flex: 1;
}

.testimonial cite {
  font-style: normal;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}

.testimonial cite .avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg,
    var(--color-primary-600),
    var(--color-primary-500));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--fs-base);
  flex: 0 0 44px;
}

.testimonial cite .name {
  display: block;
  font-weight: 700;
  color: var(--text-primary);
  font-style: normal;
}

.testimonial cite .role {
  display: block;
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   12. CTA banner
   -------------------------------------------------------------------------- */
.cta-banner {
  background:
    linear-gradient(135deg,
      var(--color-primary-900) 0%,
      var(--color-primary-800) 100%);
  color: #fff;
  border-radius: var(--radius-xl);
  padding: clamp(2rem, 5vw, 3.5rem);
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-6);
  align-items: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle,
    rgba(224, 123, 26, 0.4),
    transparent 70%);
  pointer-events: none;
}

.cta-banner h2 {
  color: #fff;
  margin-bottom: var(--space-3);
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 0;
  font-size: var(--fs-lg);
  position: relative;
  z-index: 1;
}

.cta-banner .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: flex-end;
  position: relative;
  z-index: 1;
}

@media (max-width: 800px) {
  .cta-banner {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .cta-banner .cta-actions {
    justify-content: flex-start;
  }
}

/* --------------------------------------------------------------------------
   13. About page
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}

@media (max-width: 880px) {
  .about-grid { grid-template-columns: 1fr; }
}

.about-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    linear-gradient(135deg,
      var(--color-primary-800),
      var(--color-primary-600));
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow-lg);
}

.about-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 30%,
      rgba(255, 255, 255, 0.15),
      transparent 50%),
    radial-gradient(circle at 70% 70%,
      rgba(224, 123, 26, 0.25),
      transparent 55%);
}

.about-visual .badge {
  position: absolute;
  bottom: var(--space-5);
  left: var(--space-5);
  background-color: rgba(255, 255, 255, 0.95);
  color: var(--text-primary);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-size: var(--fs-sm);
  font-weight: 600;
  max-width: 80%;
}

.about-visual .badge strong {
  display: block;
  color: var(--color-accent-600);
  font-size: var(--fs-2xl);
  font-weight: 800;
  margin-bottom: var(--space-1);
}

.value-list {
  list-style: none;
  padding: 0;
  margin: var(--space-5) 0 0;
  display: grid;
  gap: var(--space-4);
}

.value-list li {
  display: flex;
  gap: var(--space-4);
  align-items: start;
}

.value-list .ico {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-100);
  color: var(--color-primary-800);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.value-list h4 {
  margin-bottom: var(--space-1);
  font-size: var(--fs-lg);
}

.value-list p {
  margin: 0;
  color: var(--text-secondary);
  font-size: var(--fs-sm);
}

/* --------------------------------------------------------------------------
   14. Service areas
   -------------------------------------------------------------------------- */
.area-list {
  columns: 2;
  column-gap: var(--space-6);
  list-style: none;
  padding: 0;
  margin: var(--space-5) 0 0;
}

.area-list li {
  break-inside: avoid;
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-base);
  color: var(--text-secondary);
}

.area-list li::before {
  content: "";
  flex: 0 0 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent-600);
}

@media (max-width: 600px) {
  .area-list { columns: 1; }
}

.area-feature {
  background: linear-gradient(135deg,
    var(--color-primary-100),
    #fff);
  border: 1px solid var(--color-primary-100);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  height: 100%;
}

.area-feature h3 {
  color: var(--color-primary-900);
  margin-bottom: var(--space-3);
  font-size: var(--fs-xl);
}

.area-feature p {
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   15. Contact form
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-8);
  align-items: start;
}

@media (max-width: 880px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.contact-info {
  background-color: var(--bg-muted);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid var(--border);
}

.contact-info h2 {
  font-size: var(--fs-2xl);
}

.contact-info ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-4);
}

.contact-info li {
  display: flex;
  gap: var(--space-3);
  align-items: start;
}

.contact-info .ico {
  flex: 0 0 40px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-800);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.contact-info .label {
  display: block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.contact-info .value {
  display: block;
  font-weight: 600;
  color: var(--text-primary);
}

.contact-info .value a {
  color: inherit;
}

.form {
  background-color: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.form h2 {
  font-size: var(--fs-2xl);
}

.form-row {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.form-row.two-col {
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

@media (max-width: 600px) {
  .form-row.two-col { grid-template-columns: 1fr; }
}

.form label {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.form input,
.form select,
.form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: inherit;
  font-size: var(--fs-base);
  color: var(--text-primary);
  background-color: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
}

.form input:hover,
.form select:hover,
.form textarea:hover {
  border-color: var(--color-primary-500);
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px var(--color-primary-100);
}

.form textarea {
  resize: vertical;
  min-height: 130px;
}

.form-help {
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

.form-success {
  display: none;
  padding: var(--space-4);
  margin-bottom: var(--space-5);
  background-color: var(--color-success-100);
  color: var(--color-success-600);
  border: 1px solid var(--color-success-600);
  border-radius: var(--radius-md);
  font-weight: 600;
}

.form-success.is-visible { display: block; }

/* --------------------------------------------------------------------------
   16. Map embed wrapper
   -------------------------------------------------------------------------- */
.map-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.map-wrap iframe {
  width: 100%;
  height: 380px;
  border: 0;
  display: block;
}

/* --------------------------------------------------------------------------
   17. FAQ
   -------------------------------------------------------------------------- */
.faq {
  display: grid;
  gap: var(--space-3);
}

.faq details {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  transition: border-color var(--transition-fast);
}

.faq details[open] {
  border-color: var(--color-primary-500);
}

.faq summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  color: var(--text-primary);
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--color-primary-100);
  color: var(--color-primary-800);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  transition: transform var(--transition-base),
              background-color var(--transition-base);
}

.faq details[open] summary::after {
  content: "−";
  background-color: var(--color-primary-800);
  color: #fff;
}

.faq p {
  margin: var(--space-3) 0 0;
  color: var(--text-secondary);
  line-height: var(--lh-loose);
}

/* --------------------------------------------------------------------------
   18. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-primary-900);
  color: rgba(255, 255, 255, 0.75);
  padding-block: var(--space-10) var(--space-6);
}

.site-footer a {
  color: rgba(255, 255, 255, 0.85);
}

.site-footer a:hover {
  color: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-7);
}

@media (max-width: 880px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }
}

@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-grid h4 {
  color: #fff;
  font-size: var(--fs-base);
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.footer-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-2);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: #fff;
  font-weight: 800;
  font-size: var(--fs-lg);
  margin-bottom: var(--space-4);
}

.footer-brand .brand-mark {
  background: rgba(255, 255, 255, 0.1);
}

.footer-about {
  font-size: var(--fs-sm);
  line-height: var(--lh-loose);
  max-width: 38ch;
}

.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.6);
}

/* --------------------------------------------------------------------------
   19. Utilities / print
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-3);
  background-color: var(--color-primary-800);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  z-index: 100;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-3);
  color: #fff;
}

@media print {
  .site-header,
  .site-footer,
  .nav-toggle,
  .cta-banner,
  .hero-actions {
    display: none !important;
  }
  body { color: #000; background: #fff; }
  a { color: #000; text-decoration: underline; }
}