/* ==========================================================================
   Upright Integrity — styles.css
   Design tokens, reset, typography, and shared components.
   ========================================================================== */

:root {
  /* Color palette — navy + white + warm accent */
  --color-navy: #1E3A5F;
  --color-navy-dark: #142A47;
  --color-navy-light: #2F5283;
  --color-white: #FFFFFF;
  --color-gray-50: #F4F6F9;
  --color-gray-100: #E6EAF0;
  --color-gray-300: #B8C0CC;
  --color-gray-600: #5B6876;
  --color-gray-900: #1A1F26;
  --color-accent: #C08A2E;        /* warm brass — adjust after logo review */
  --color-accent-dark: #9C6E22;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.75rem;
  --line-tight: 1.2;
  --line-normal: 1.6;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;

  /* Layout */
  --container-max: 1200px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.14);
}

/* Reset + base */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-normal);
  color: var(--color-gray-900);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: var(--color-navy); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--color-navy-dark); }
button { font: inherit; }

/* Typography */
h1, h2, h3, h4 { margin: 0 0 var(--space-4); line-height: var(--line-tight); color: var(--color-navy); }
h1 { font-size: var(--font-size-4xl); font-weight: 800; }
h2 { font-size: var(--font-size-3xl); font-weight: 700; }
h3 { font-size: var(--font-size-2xl); font-weight: 700; }
h4 { font-size: var(--font-size-xl); font-weight: 600; }
p { margin: 0 0 var(--space-4); }

/* Layout primitives */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}
.section { padding: var(--space-16) 0; }
.section--alt { background: var(--color-gray-50); }
.section--navy { background: var(--color-navy); color: var(--color-white); }
.section--navy h1, .section--navy h2, .section--navy h3 { color: var(--color-white); }

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: all 0.15s ease;
}
.btn--primary { background: var(--color-accent); color: var(--color-white); }
.btn--primary:hover { background: var(--color-accent-dark); color: var(--color-white); }
.btn--secondary { background: transparent; color: var(--color-white); border-color: var(--color-white); }
.btn--secondary:hover { background: var(--color-white); color: var(--color-navy); }
.btn--outline { background: transparent; color: var(--color-navy); border-color: var(--color-navy); }
.btn--outline:hover { background: var(--color-navy); color: var(--color-white); }
.btn--lg { padding: var(--space-4) var(--space-8); font-size: var(--font-size-lg); }
.btn:focus-visible,
a:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; pointer-events: none; }

/* Visually hidden (a11y) */
.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;
}

/* Mobile adjustments */
@media (max-width: 640px) {
  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }
  .section { padding: var(--space-12) 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   Site header + nav
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-100);
  box-shadow: var(--shadow-sm);
}
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-6);
  padding: var(--space-4) var(--space-6);
  max-width: var(--container-max);
  margin: 0 auto;
}
.site-header__brand {
  display: flex; align-items: center; gap: var(--space-3);
  text-decoration: none; color: var(--color-navy); font-weight: 700;
  font-size: var(--font-size-lg);
}
.site-header__brand img { width: 48px; height: 48px; object-fit: contain; }
.site-nav { display: flex; align-items: center; gap: var(--space-6); }
.site-nav a { text-decoration: none; color: var(--color-gray-900); font-weight: 500; }
.site-nav a:hover, .site-nav a.active { color: var(--color-navy); }
.site-nav__cta { margin-left: var(--space-4); }
.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer; padding: var(--space-2);
}
.nav-toggle__bar {
  display: block; width: 24px; height: 2px; background: var(--color-navy); margin: 5px 0;
  transition: all 0.2s ease;
}

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute; top: 100%; right: 0; left: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--color-white);
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--color-gray-100);
    display: none;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: var(--space-3) 0; border-bottom: 1px solid var(--color-gray-100); }
  .site-nav__cta { margin-left: 0; margin-top: var(--space-3); }
}

/* ==========================================================================
   Site footer
   ========================================================================== */
.site-footer {
  background: var(--color-navy-dark); color: var(--color-gray-100);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--space-16);
}
.site-footer a { color: var(--color-white); }
.site-footer__grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-8); margin-bottom: var(--space-8);
}
.site-footer__col h4 { color: var(--color-white); font-size: var(--font-size-base); text-transform: uppercase; letter-spacing: 0.05em; }
.site-footer__col ul { list-style: none; padding: 0; margin: 0; }
.site-footer__col li { margin-bottom: var(--space-2); }
.site-footer__bottom {
  border-top: 1px solid var(--color-navy-light);
  padding-top: var(--space-6);
  font-size: var(--font-size-sm);
  color: var(--color-gray-300);
  text-align: center;
}

/* ==========================================================================
   Home page
   ========================================================================== */
.hero {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
  color: var(--color-white);
  padding: var(--space-24) 0 var(--space-16);
  text-align: center;
}
.hero h1 { color: var(--color-white); margin-bottom: var(--space-6); }
.hero__lead { font-size: var(--font-size-xl); color: var(--color-gray-100); max-width: 700px; margin: 0 auto var(--space-8); }
.hero__ctas { display: flex; gap: var(--space-4); justify-content: center; flex-wrap: wrap; }
.hero__phone {
  display: block; margin-top: var(--space-8);
  font-size: var(--font-size-lg); color: var(--color-white);
}

.trust-bar {
  background: var(--color-accent); color: var(--color-navy-dark);
  text-align: center; padding: var(--space-4) var(--space-6);
  font-weight: 600; font-size: var(--font-size-base);
}

.service-split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-8); }
@media (max-width: 860px) { .service-split { grid-template-columns: 1fr; } }
.service-card {
  background: var(--color-white); border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-lg); padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column;
}
.service-card h3 { color: var(--color-navy); }
.service-card__list { margin: 0 0 var(--space-6); padding-left: var(--space-6); color: var(--color-gray-600); }
.service-card__link { margin-top: auto; }

.featured-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-4);
}
.featured-tile {
  position: relative; aspect-ratio: 4/3; border-radius: var(--radius-md);
  overflow: hidden; background: var(--color-gray-100);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-gray-600); font-size: var(--font-size-sm);
}
.featured-tile img { width: 100%; height: 100%; object-fit: cover; }

.why-us { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-8); }
@media (max-width: 860px) { .why-us { grid-template-columns: 1fr; } }
.why-us__item h3 { font-size: var(--font-size-xl); }

/* ==========================================================================
   Residential + Commercial pages — category/service blocks
   ========================================================================== */
.page-hero {
  background: var(--color-navy); color: var(--color-white);
  padding: var(--space-16) 0; text-align: center;
}
.page-hero h1 { color: var(--color-white); }
.page-hero p { color: var(--color-gray-100); max-width: 720px; margin: 0 auto; font-size: var(--font-size-lg); }

.category-block { margin-bottom: var(--space-16); }
.category-block:last-child { margin-bottom: 0; }
.category-block__header {
  display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-6);
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: var(--space-3); margin-bottom: var(--space-6);
}
.category-block__header h2 { margin: 0; }
.category-block__body { display: grid; grid-template-columns: 2fr 1fr; gap: var(--space-8); }
@media (max-width: 860px) { .category-block__body { grid-template-columns: 1fr; } }
.category-block__services {
  columns: 2; column-gap: var(--space-6);
  list-style: none; padding: 0; margin: 0;
}
@media (max-width: 540px) { .category-block__services { columns: 1; } }
.category-block__services li { padding: var(--space-2) 0; border-bottom: 1px solid var(--color-gray-100); break-inside: avoid; }
.category-block__photo {
  aspect-ratio: 4/3; border-radius: var(--radius-md); overflow: hidden; background: var(--color-gray-100);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-gray-600); font-size: var(--font-size-sm);
}
.category-block__photo img { width: 100%; height: 100%; object-fit: cover; }

.emergency-callout {
  background: #FDF4E6; border-left: 4px solid var(--color-accent);
  padding: var(--space-6) var(--space-8); border-radius: var(--radius-md);
  margin-bottom: var(--space-16);
}
.emergency-callout h3 { color: var(--color-navy-dark); margin-bottom: var(--space-2); }
.emergency-callout a { font-weight: 700; font-size: var(--font-size-xl); }

.inline-card {
  background: var(--color-gray-50); border-radius: var(--radius-md);
  padding: var(--space-6) var(--space-8); margin-bottom: var(--space-8);
}
.inline-card h3 { margin-bottom: var(--space-2); }
.inline-card p:last-child { margin-bottom: 0; }

/* Commercial service cards */
.commercial-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}
.commercial-card {
  background: var(--color-white); border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-md); padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.commercial-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.commercial-card h3 { margin-bottom: var(--space-3); font-size: var(--font-size-xl); }
.commercial-card p { color: var(--color-gray-600); margin: 0; }

/* ==========================================================================
   Projects page — filter + gallery + lightbox
   ========================================================================== */
.filter-tabs {
  display: flex; gap: var(--space-2); justify-content: center;
  margin-bottom: var(--space-8); flex-wrap: wrap;
}
.filter-tabs button {
  background: transparent; border: 2px solid var(--color-gray-300); color: var(--color-gray-600);
  padding: var(--space-2) var(--space-6); border-radius: 999px;
  font-weight: 600; cursor: pointer; transition: all 0.15s ease;
}
.filter-tabs button:hover { border-color: var(--color-navy); color: var(--color-navy); }
.filter-tabs button.is-active { background: var(--color-navy); border-color: var(--color-navy); color: var(--color-white); }

.project-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
}
.project-tile {
  background: var(--color-white); border-radius: var(--radius-md); overflow: hidden;
  box-shadow: var(--shadow-sm); cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.project-tile:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.project-tile__photo {
  aspect-ratio: 4/3; background: var(--color-gray-100);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-gray-600); font-size: var(--font-size-sm);
}
.project-tile__photo img { width: 100%; height: 100%; object-fit: cover; }
.project-tile__meta { padding: var(--space-4) var(--space-6); }
.project-tile__meta h3 { font-size: var(--font-size-lg); margin-bottom: var(--space-1); }
.project-tile__meta p { margin: 0; color: var(--color-gray-600); font-size: var(--font-size-sm); }

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.88);
  display: none; align-items: center; justify-content: center;
  padding: var(--space-6); z-index: 100;
}
.lightbox.is-open { display: flex; }
.lightbox__inner {
  max-width: 90vw; max-height: 90vh; display: flex; flex-direction: column; align-items: center;
}
.lightbox__inner img { max-width: 100%; max-height: 80vh; border-radius: var(--radius-md); }
.lightbox__caption { color: var(--color-white); margin-top: var(--space-4); }
.lightbox__close {
  position: absolute; top: var(--space-4); right: var(--space-4);
  background: transparent; border: 2px solid var(--color-white); color: var(--color-white);
  width: 40px; height: 40px; border-radius: 50%; font-size: var(--font-size-xl); cursor: pointer;
}

/* About page */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); align-items: start; }
@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; } }
.about-map { aspect-ratio: 4/3; border-radius: var(--radius-md); overflow: hidden; background: var(--color-gray-100); border: 1px solid var(--color-gray-100); }
.about-map iframe { width: 100%; height: 100%; border: 0; }

.values-list {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6);
  margin-top: var(--space-8);
}
@media (max-width: 860px) { .values-list { grid-template-columns: 1fr; } }
.values-list__item { background: var(--color-gray-50); padding: var(--space-6); border-radius: var(--radius-md); }
.values-list__item h3 { font-size: var(--font-size-lg); margin-bottom: var(--space-2); }
.values-list__item p { margin: 0; color: var(--color-gray-600); }

.credentials {
  display: flex; gap: var(--space-6); flex-wrap: wrap;
  background: var(--color-gray-50); padding: var(--space-6) var(--space-8);
  border-radius: var(--radius-md); border-left: 4px solid var(--color-accent);
  margin-top: var(--space-8);
}
.credentials__item strong { display: block; color: var(--color-navy-dark); }
.credentials__item span { color: var(--color-gray-600); font-size: var(--font-size-sm); }

/* ==========================================================================
   Contact page + quote form
   ========================================================================== */
.contact-grid { display: grid; grid-template-columns: 1fr 2fr; gap: var(--space-12); align-items: start; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-info__item { margin-bottom: var(--space-6); }
.contact-info__item h3 { font-size: var(--font-size-base); text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-gray-600); margin-bottom: var(--space-2); }
.contact-info__item a { font-size: var(--font-size-xl); font-weight: 700; text-decoration: none; }

.form-field { margin-bottom: var(--space-4); }
.form-field label { display: block; margin-bottom: var(--space-2); font-weight: 600; }
.form-field input,
.form-field textarea,
.form-field select {
  width: 100%; padding: var(--space-3) var(--space-4);
  border: 2px solid var(--color-gray-100); border-radius: var(--radius-md);
  font: inherit; background: var(--color-white);
  transition: border-color 0.15s ease;
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none; border-color: var(--color-navy);
}
.form-field textarea { min-height: 140px; resize: vertical; }
.form-radios { display: flex; gap: var(--space-6); }
.form-radios label { font-weight: 400; display: flex; align-items: center; gap: var(--space-2); }
.form-radios input[type="radio"] { width: auto; }
.form-hp { position: absolute; left: -9999px; }

.form-thanks {
  background: #E8F4EA; border-left: 4px solid #2E7D32;
  padding: var(--space-6) var(--space-8); border-radius: var(--radius-md);
}

.form-fieldset { border: 0; padding: 0; margin: 0 0 var(--space-4); }
.form-fieldset legend { font-weight: 600; margin-bottom: var(--space-2); padding: 0; }
.form-thanks h3 { color: #1B5E20; margin-bottom: var(--space-2); }