/* ============================================
   FROSTLINE FENCE — DESIGN SYSTEM
   ============================================ */

/* ============================================
   LIGHT MODE TOKENS
   ============================================ */
:root {
  /* Brand */
  --c-primary:      #2b2d2e;   /* charcoal */
  --c-accent:       #c97c2a;   /* amber */
  --c-accent-hover: #e0952f;
  --c-accent-light: #fdf3e7;

  /* Surfaces */
  --c-bg:           #f7f5f2;
  --c-bg-muted:     #eeebe6;
  --c-surface:      #ffffff;
  --c-border:       #d8d4ce;

  /* Text */
  --c-text:         #1c1c1c;
  --c-text-muted:   #5a5857;

  /* Feedback */
  --c-error:        #c0392b;
  --c-success:      #2a7a4b;

  /* Typography */
  --font-heading: 'Barlow', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  3.75rem;   /* 60px — section padding */
  --space-xl:  6rem;

  /* Shape */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Elevation */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);

  /* Layout */
  --content-width: 1100px;
  --narrow-width:  720px;
  --header-height: 68px;

  /* Motion */
  --ease: 0.2s ease;
}

/* ============================================
   DARK MODE TOKENS
   ============================================ */
@media (prefers-color-scheme: dark) {
  :root {
    --c-primary:      #38BDF8;   /* ice blue becomes the brand accent */
    --c-accent:       #38BDF8;
    --c-accent-hover: #7DD3FC;
    --c-accent-light: rgba(56,189,248,0.08);

    --c-bg:           #0F141C;   /* deep slate blue-gray */
    --c-bg-muted:     #0F141C;
    --c-surface:      #1A2332;   /* elevated surface */
    --c-border:       #2D3D52;

    --c-text:         #E2E8F0;   /* glacial off-white */
    --c-text-muted:   #94A3B8;   /* steel gray */

    --c-error:        #F87171;
    --c-success:      #34D399;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  }
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  /* offset anchors so fixed header doesn't cover them */
  scroll-padding-top: var(--header-height);
}

body {
  margin: 0;
  /* push content below fixed header */
  padding-top: var(--header-height);
  font-family: var(--font-body);
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background var(--ease), color var(--ease);
}

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

a {
  color: var(--c-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--ease);
}
a:hover { color: var(--c-accent-hover); }

h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 1rem;
  color: var(--c-text);
}

p  { margin: 0 0 1rem; }
ul, ol { margin: 0 0 1rem; padding-left: 1.5rem; }
li { margin-bottom: 0.4rem; }

/* ============================================
   SKIP LINK
   ============================================ */
.skip-link {
  position: fixed;
  top: -100%;
  left: 1rem;
  z-index: 10000;
  background: var(--c-accent);
  color: var(--c-bg);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  text-decoration: none;
  transition: top var(--ease);
}
.skip-link:focus { top: calc(var(--header-height) + 0.5rem); }

/* ============================================
   HEADER — FIXED, FULL WIDTH
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 9999;
  height: var(--header-height);
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  transition: box-shadow var(--ease), background var(--ease), border-color var(--ease);
}
.site-header.is-scrolled {
  box-shadow: 0 4px 24px rgba(0,0,0,0.15);
}

@media (prefers-color-scheme: dark) {
  .site-header.is-scrolled {
    box-shadow: 0 4px 24px rgba(0,0,0,0.5);
  }
}

.site-header__inner {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

/* Logo — left */
.site-header__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--c-text);
  text-decoration: none;
  letter-spacing: -0.01em;
  flex-shrink: 0;
  transition: color var(--ease);
}
.site-header__logo:hover { color: var(--c-accent); }
.site-header__logo-icon {
  width: 28px;
  height: 28px;
  color: var(--c-accent);
  flex-shrink: 0;
}

/* Nav — right */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-nav__link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--c-text-muted);
  text-decoration: none;
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius-sm);
  transition: color var(--ease), background var(--ease);
  white-space: nowrap;
}
.site-nav__link:hover {
  color: var(--c-text);
  background: var(--c-accent-light);
}
.site-nav__link.is-active {
  color: var(--c-accent);
  background: var(--c-accent-light);
}

.site-nav__cta { margin-left: 0.75rem; }

/* Hamburger toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
  transition: border-color var(--ease);
}
.nav-toggle:hover { border-color: var(--c-accent); }
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--ease), color var(--ease),
              border-color var(--ease), box-shadow var(--ease),
              transform 0.15s ease;
  line-height: 1;
}
.btn:focus-visible {
  outline: 3px solid var(--c-accent);
  outline-offset: 3px;
}
.btn:active { transform: translateY(1px); }

/* Primary — accent filled */
.btn--primary {
  background: var(--c-accent);
  color: #0F141C;
  border-color: var(--c-accent);
  font-weight: 800;
}
.btn--primary:hover {
  background: var(--c-accent-hover);
  border-color: var(--c-accent-hover);
  color: #0F141C;
  box-shadow: 0 4px 16px rgba(201,124,42,0.35);
}

@media (prefers-color-scheme: dark) {
  .btn--primary:hover {
    box-shadow: 0 4px 16px rgba(56,189,248,0.35);
  }
}

/* Outline — bordered */
.btn--outline {
  background: transparent;
  color: var(--c-text);
  border-color: var(--c-border);
}
.btn--outline:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
  background: var(--c-accent-light);
}

/* Hero variant — white-border on dark bg (light mode hero only) */
.hero .btn--outline {
  color: rgba(255,255,255,0.9);
  border-color: rgba(255,255,255,0.4);
  background: transparent;
}
.hero .btn--outline:hover {
  border-color: rgba(255,255,255,0.9);
  color: #ffffff;
  background: rgba(255,255,255,0.08);
}

@media (prefers-color-scheme: dark) {
  .hero .btn--outline {
    color: var(--c-text-muted);
    border-color: var(--c-border);
  }
  .hero .btn--outline:hover {
    border-color: var(--c-accent);
    color: var(--c-accent);
    background: var(--c-accent-light);
  }
}

/* White — for use inside green/dark sections in light mode */
.btn--white {
  background: #ffffff;
  color: var(--c-primary);
  border-color: #ffffff;
}
.btn--white:hover {
  background: var(--c-bg);
  color: var(--c-primary);
  box-shadow: var(--shadow-md);
}

@media (prefers-color-scheme: dark) {
  .btn--white {
    background: var(--c-accent);
    color: #0F141C;
    border-color: var(--c-accent);
  }
  .btn--white:hover {
    background: var(--c-accent-hover);
    border-color: var(--c-accent-hover);
  }
}

.btn--sm  { font-size: 0.875rem; padding: 0.5rem 1rem; }
.btn--lg  { font-size: 1.05rem;  padding: 0.875rem 2rem; }

/* ============================================
   LAYOUT HELPERS
   ============================================ */
.container {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.container--narrow { max-width: var(--narrow-width); }
.center { text-align: center; }

.section { padding: var(--space-lg) 0; }

/* Light mode section backgrounds */
.section--light  { background: var(--c-surface); }
.section--muted  { background: var(--c-bg-muted); }
.section--green  { background: var(--c-primary); }   /* charcoal in light mode */

/* Dark mode section backgrounds */
@media (prefers-color-scheme: dark) {
  .section--light  { background: var(--c-bg); }
  .section--muted  { background: var(--c-surface); }
  .section--green  { background: var(--c-surface); border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border); }
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-md);
}
.section__title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 0.5rem;
}
.section__title--light { color: #ffffff; }
@media (prefers-color-scheme: dark) {
  .section__title--light { color: var(--c-text); }
}
.section__subtitle { color: var(--c-text-muted); font-size: 1.05rem; margin: 0 0 1.5rem; }
.section__subtitle--light { color: rgba(255,255,255,0.82); }
@media (prefers-color-scheme: dark) {
  .section__subtitle--light { color: var(--c-text-muted); }
}
.section__cta { text-align: center; margin-top: var(--space-md); }

/* ============================================
   HERO
   ============================================ */
.hero {
  background: var(--c-primary);
  background-image: linear-gradient(145deg, #2b2d2e 0%, #3d3f41 100%);
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Subtle fence-grid texture */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Crect x='28' y='0' width='4' height='60' fill='rgba(255,255,255,0.025)'/%3E%3Crect x='0' y='14' width='60' height='4' fill='rgba(255,255,255,0.025)'/%3E%3Crect x='0' y='40' width='60' height='4' fill='rgba(255,255,255,0.025)'/%3E%3C/svg%3E");
  pointer-events: none;
}

@media (prefers-color-scheme: dark) {
  .hero {
    background: var(--c-bg);
    background-image: linear-gradient(145deg, #0F141C 0%, #141D2B 100%);
    border-bottom: 1px solid var(--c-border);
  }
  .hero::before { opacity: 0.5; }
}

.hero__content {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
}

.hero__eyebrow {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.9);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.15);
  margin-bottom: 1.5rem;
}
@media (prefers-color-scheme: dark) {
  .hero__eyebrow {
    background: rgba(56,189,248,0.08);
    color: var(--c-accent);
    border-color: rgba(56,189,248,0.2);
  }
}

.hero__title {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
@media (prefers-color-scheme: dark) {
  .hero__title { color: var(--c-text); }
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.8);
  max-width: 580px;
  margin: 0 auto 2.25rem;
  line-height: 1.6;
}
@media (prefers-color-scheme: dark) {
  .hero__subtitle { color: var(--c-text-muted); }
}

.hero__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.hero__phone {
  color: rgba(255,255,255,0.65);
  font-size: 0.9rem;
  margin: 0;
}
.hero__phone a { color: rgba(255,255,255,0.9); font-weight: 600; text-decoration: none; }
.hero__phone a:hover { color: #ffffff; }
@media (prefers-color-scheme: dark) {
  .hero__phone { color: var(--c-text-muted); }
  .hero__phone a { color: var(--c-accent); }
  .hero__phone a:hover { color: var(--c-accent-hover); }
}

/* ============================================
   PAGE HERO (inner pages)
   ============================================ */
.page-hero {
  background: var(--c-primary);
  background-image: linear-gradient(145deg, #2b2d2e 0%, #3d3f41 100%);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
}
@media (prefers-color-scheme: dark) {
  .page-hero {
    background: var(--c-surface);
    background-image: none;
    border-bottom: 1px solid var(--c-border);
  }
}

.page-hero__title {
  font-size: clamp(2rem, 5vw, 3rem);
  color: #ffffff;
  margin-bottom: 0.75rem;
}
.page-hero__subtitle {
  color: rgba(255,255,255,0.82);
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}
@media (prefers-color-scheme: dark) {
  .page-hero__title    { color: var(--c-text); }
  .page-hero__subtitle { color: var(--c-text-muted); }
}

/* ============================================
   SERVICE CARDS (full — /services/ page)
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
}

.service-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--ease), transform var(--ease), border-color var(--ease);
}
.service-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--c-accent);
}

.service-card__icon { font-size: 2rem; line-height: 1; }
.service-card__name {
  font-size: 1.15rem;
  margin: 0;
}
.service-card__desc {
  color: var(--c-text-muted);
  font-size: 0.95rem;
  margin: 0;
  flex: 1;
  line-height: 1.6;
}
.service-card__features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.service-card__features li {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  padding-left: 1.25rem;
  position: relative;
  margin: 0;
  line-height: 1.5;
}
.service-card__features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--c-accent);
  font-weight: 800;
}
.service-card__ideal {
  font-size: 0.83rem;
  color: var(--c-text-muted);
  margin: 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--c-border);
  line-height: 1.5;
}
.service-card .btn--outline {
  align-self: flex-start;
  margin-top: auto;
}

/* ============================================
   SERVICES OVERVIEW (homepage — compact)
   ============================================ */
.services-overview {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: var(--space-sm);
}

.services-overview__item {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.25rem;
  text-align: center;
  transition: box-shadow var(--ease), transform var(--ease), border-color var(--ease);
}
.services-overview__item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--c-accent);
}

.services-overview__icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.6rem;
  line-height: 1;
}
.services-overview__name {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.35rem;
}
.services-overview__desc {
  font-size: 0.83rem;
  color: var(--c-text-muted);
  margin: 0;
  line-height: 1.5;
}

/* ============================================
   WHY US
   ============================================ */
.why-us {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.why-us__list {
  list-style: none;
  padding: 0;
  margin: var(--space-md) 0 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.why-us__list li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  margin: 0;
  padding-left: 1rem;
  border-left: 3px solid var(--c-accent);
}
.why-us__list li strong {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: #ffffff;
}
.why-us__list li span {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.5;
}
@media (prefers-color-scheme: dark) {
  .why-us__list li strong { color: var(--c-text); }
  .why-us__list li span   { color: var(--c-text-muted); }
}

.why-us__cta {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  text-align: center;
}
@media (prefers-color-scheme: dark) {
  .why-us__cta {
    background: rgba(56,189,248,0.04);
    border-color: var(--c-border);
  }
}

.why-us__cta > p:first-child {
  color: rgba(255,255,255,0.8);
  font-size: 1rem;
  margin-bottom: 1.25rem;
}
@media (prefers-color-scheme: dark) {
  .why-us__cta > p:first-child { color: var(--c-text-muted); }
}
.why-us__phone { margin-top: 1rem; font-size: 0.9rem; }
.why-us__phone a { color: white; font-weight: 600; text-decoration: none; }
@media (prefers-color-scheme: dark) {
  .why-us__phone a { color: var(--c-accent); }
}

/* ============================================
   SERVICE AREAS
   ============================================ */
.service-areas { text-align: center; }

.area-list {
  list-style: none;
  padding: 0;
  margin: var(--space-sm) auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  max-width: 660px;
}
.area-list li {
  background: var(--c-accent-light);
  color: var(--c-text);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--c-border);
  margin: 0;
}
@media (prefers-color-scheme: dark) {
  .area-list li {
    background: rgba(56,189,248,0.06);
    border-color: var(--c-border);
    color: var(--c-text);
  }
}
.area-list--large li { font-size: 0.95rem; padding: 0.5rem 1.1rem; }

.area-note {
  color: var(--c-text-muted);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

/* ============================================
   PROSE (about page)
   ============================================ */
.prose {
  max-width: var(--narrow-width);
  margin: 0 auto;
}
.prose h2 {
  font-size: 1.5rem;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--c-border);
}
.prose h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}
.prose ul { list-style: none; padding: 0; }
.prose ul li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--c-border);
  line-height: 1.6;
}
.prose ul li:last-child { border-bottom: none; }

/* ============================================
   CONTACT
   ============================================ */
.contact-cta {
  text-align: center;
  padding: var(--space-lg);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
}
.contact-cta__icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.contact-cta h2 { font-size: 1.75rem; margin-bottom: 0.75rem; }
.contact-cta p  { color: var(--c-text-muted); max-width: 48ch; margin: 0 auto 1.5rem; }

.contact-meta {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}
.contact-meta__item {
  flex: 1;
  padding: 1.25rem;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
}
.contact-meta__label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  margin-bottom: 0.35rem;
}
.contact-meta__value { font-weight: 600; color: var(--c-text); }

.area-grid h3 { margin-bottom: 1rem; }
.area-list--grid {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.5rem;
}
.area-list--grid li {
  padding: 0.5rem 0.75rem;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--c-text-muted);
}

@media (max-width: 600px) {
  .contact-meta { flex-direction: column; }
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--c-primary);
  color: rgba(255,255,255,0.8);
  padding: var(--space-lg) 0 0;
}
@media (prefers-color-scheme: dark) {
  .site-footer {
    background: #0a0e14;
    border-top: 1px solid var(--c-border);
    color: var(--c-text-muted);
  }
}

.site-footer__inner {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-md);
}

.site-footer__logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  color: #ffffff;
  text-decoration: none;
  display: block;
  margin-bottom: 0.5rem;
  transition: color var(--ease);
}
.site-footer__logo:hover { color: var(--c-accent); }
@media (prefers-color-scheme: dark) {
  .site-footer__logo { color: var(--c-text); }
}

.site-footer__tagline {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  margin: 0;
}
@media (prefers-color-scheme: dark) {
  .site-footer__tagline { color: var(--c-text-muted); }
}

.site-footer__heading {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 0.75rem;
}
@media (prefers-color-scheme: dark) {
  .site-footer__heading { color: var(--c-text-muted); }
}

.site-footer__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.site-footer__list li  { margin: 0; }
.site-footer__list a {
  color: rgba(255,255,255,0.72);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color var(--ease);
}
.site-footer__list a:hover { color: #ffffff; }
@media (prefers-color-scheme: dark) {
  .site-footer__list a { color: var(--c-text-muted); }
  .site-footer__list a:hover { color: var(--c-accent); }
}
.site-footer__contact li { font-size: 0.88rem; color: rgba(255,255,255,0.72); }
@media (prefers-color-scheme: dark) {
  .site-footer__contact li { color: var(--c-text-muted); }
}

.site-footer__bottom {
  max-width: var(--content-width);
  margin: var(--space-md) auto 0;
  padding: var(--space-sm) var(--space-md);
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.83rem;
  color: rgba(255,255,255,0.45);
}
.site-footer__bottom p { margin: 0; }
@media (prefers-color-scheme: dark) {
  .site-footer__bottom {
    border-top-color: var(--c-border);
    color: var(--c-text-muted);
  }
}

/* ============================================
   ERROR PAGE
   ============================================ */
.error-page {
  padding: var(--space-xl) var(--space-md);
  min-height: 60vh;
  display: flex;
  align-items: center;
}
.error-page__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  color: var(--c-accent);
}
.error-page__title   { font-size: 2rem; margin-bottom: 1rem; }
.error-page__message { color: var(--c-text-muted); margin-bottom: 2rem; }
.error-page__actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ============================================
   SCROLL REVEAL
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ============================================
   RESPONSIVE — TABLET  (≤ 900px)
   ============================================ */
@media (max-width: 900px) {
  .site-footer__inner { grid-template-columns: 1fr 1fr; }
  .site-footer__brand { grid-column: 1 / -1; }
  .why-us { grid-template-columns: 1fr; }
}

/* ============================================
   RESPONSIVE — MOBILE  (≤ 768px)
   ============================================ */
@media (max-width: 768px) {
  /* Show hamburger, hide desktop nav */
  .nav-toggle { display: flex; }

  .site-nav {
    /* drawer: slides down from header, full width */
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--c-surface);
    border-bottom: 2px solid var(--c-border);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-sm);
    gap: 0.25rem;
    box-shadow: var(--shadow-lg);
    z-index: 9998;
  }
  .site-nav.is-open { display: flex; }

  .site-nav__link {
    padding: 0.85rem 1rem;
    font-size: 1rem;
    border-radius: var(--radius-md);
  }
  .site-nav__cta { margin: 0.5rem 0 0; text-align: center; }

  /* Hero */
  .hero { padding: var(--space-lg) var(--space-sm); }
  .hero__actions { flex-direction: column; align-items: center; }
  .hero__actions .btn { width: 100%; max-width: 320px; }

  /* Grids */
  .services-grid     { grid-template-columns: 1fr; }
  .services-overview { grid-template-columns: 1fr 1fr; }

  /* Contact */
  .form-row       { grid-template-columns: 1fr; }
}

/* ============================================
   RESPONSIVE — SMALL MOBILE  (≤ 480px)
   ============================================ */
@media (max-width: 480px) {
  .container { padding: 0 var(--space-sm); }
  .section   { padding: var(--space-md) 0; }

  .hero { padding: var(--space-md) var(--space-sm); }

  .services-overview { grid-template-columns: 1fr; }

  .site-footer__inner { grid-template-columns: 1fr; }
}