/* Design System for Brentwood Slab Leak Repair
   Warm East Contra Costa Coastal-Delta Palette & Precise Technical Clarity
   Zero hash symbols allowed across all properties
*/

:root {
  --color-brand-midnight: rgb(15, 34, 64);
  --color-brand-navy: rgb(24, 52, 94);
  --color-brand-cyan: rgb(14, 165, 233);
  --color-brand-ice: rgb(240, 249, 255);
  --color-accent-amber: rgb(217, 119, 6);
  --color-accent-amber-hover: rgb(180, 83, 9);
  --color-text-primary: rgb(27, 38, 59);
  --color-text-secondary: rgb(71, 85, 105);
  --color-text-muted: rgb(100, 116, 139);
  --color-text-light: rgb(248, 250, 252);
  --color-bg-page: rgb(248, 250, 252);
  --color-bg-white: rgb(255, 255, 255);
  --color-bg-soft: rgb(241, 245, 249);
  --color-bg-highlight: rgb(254, 243, 199);
  --color-border-card: rgb(226, 232, 240);
  --color-border-subtle: rgb(238, 242, 246);
  --color-border-callout: rgb(252, 211, 77);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 9999px;
  --shadow-sm: 0 1px 3px rgba(15, 34, 64, 0.06);
  --shadow-md: 0 4px 14px rgba(15, 34, 64, 0.08);
  --shadow-lg: 0 12px 28px rgba(15, 34, 64, 0.12);
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --max-content-width: 1180px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  color: var(--color-text-primary);
  background-color: var(--color-bg-page);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 74px;
}

@media (min-width: 820px) {
  body {
    padding-bottom: 0;
  }
}

a {
  color: var(--color-brand-navy);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}

a:hover, a:focus {
  color: var(--color-accent-amber);
}

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

/* Header & Navigation */
.header-wrapper {
  background-color: var(--color-bg-white);
  border-bottom: 1px solid var(--color-border-card);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-link {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo-img {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.brand-text-block {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-brand-midnight);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.brand-subtitle {
  font-size: 0.78rem;
  color: var(--color-accent-amber);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-desktop {
  display: none;
}

@media (min-width: 992px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: 22px;
  }
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-primary);
  text-decoration: none;
  padding: 8px 0;
  position: relative;
  transition: color 0.15s ease;
}

.nav-link:hover, .nav-link:focus, .nav-link.active {
  color: var(--color-brand-navy);
}

.nav-dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-toggle {
  background: none;
  border: none;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-primary);
  cursor: pointer;
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.dropdown-toggle:hover {
  color: var(--color-brand-navy);
}

.dropdown-arrow {
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  margin-top: -3px;
  transition: transform 0.2s ease;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--color-bg-white);
  min-width: 260px;
  border: 1px solid var(--color-border-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 10px 0;
  display: none;
  z-index: 1010;
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu {
  display: block;
}

.dropdown-item {
  display: block;
  padding: 9px 18px;
  color: var(--color-text-primary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background-color 0.15s, color 0.15s;
}

.dropdown-item:hover, .dropdown-item:focus {
  background-color: var(--color-bg-soft);
  color: var(--color-accent-amber);
}

.header-cta-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-header-call {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-accent-amber);
  color: var(--color-text-light);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: background-color 0.2s, transform 0.1s;
}

.btn-header-call:hover, .btn-header-call:focus {
  background-color: var(--color-accent-amber-hover);
  color: var(--color-text-light);
}

.menu-toggle-btn {
  display: inline-flex;
  flex-direction: column;
  justify-content: space-around;
  width: 38px;
  height: 38px;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border-card);
  border-radius: var(--radius-sm);
  padding: 8px 7px;
  cursor: pointer;
}

@media (min-width: 992px) {
  .menu-toggle-btn {
    display: none;
  }
}

.menu-bar {
  width: 100%;
  height: 2px;
  background-color: var(--color-brand-midnight);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

/* Mobile Nav Drawer */
.mobile-nav-panel {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-bg-white);
  padding: 20px;
  overflow-y: auto;
  z-index: 999;
  border-top: 1px solid var(--color-border-card);
}

.mobile-nav-panel.open {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mobile-nav-link {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-brand-midnight);
  text-decoration: none;
  display: block;
  padding: 8px 4px;
}

.mobile-sub-list {
  list-style: none;
  padding-left: 16px;
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-left: 2px solid var(--color-border-card);
}

.mobile-sub-link {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  text-decoration: none;
}

/* Page Layout Components */
.page-container {
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Hero Section */
.hero-block {
  background: linear-gradient(135deg, var(--color-brand-midnight) 0%, var(--color-brand-navy) 100%);
  color: var(--color-text-light);
  padding: 56px 0 60px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}

@media (min-width: 860px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

.hero-badge {
  display: inline-block;
  background-color: rgba(217, 119, 6, 0.2);
  color: rgb(253, 230, 138);
  border: 1px solid rgba(253, 230, 138, 0.4);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 18px;
}

.hero-title {
  font-size: 2.15rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 18px;
  color: var(--color-text-light);
  letter-spacing: -0.02em;
}

@media (min-width: 600px) {
  .hero-title {
    font-size: 2.75rem;
  }
}

.hero-lead {
  font-size: 1.12rem;
  line-height: 1.6;
  color: rgb(226, 232, 240);
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.btn-primary-call {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: var(--color-accent-amber);
  color: var(--color-text-light);
  font-size: 1.1rem;
  font-weight: 800;
  padding: 15px 28px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(217, 119, 6, 0.35);
  transition: background-color 0.15s, transform 0.1s;
}

.btn-primary-call:hover, .btn-primary-call:focus {
  background-color: var(--color-accent-amber-hover);
  color: var(--color-text-light);
}

.hero-tel-note {
  font-size: 0.85rem;
  color: rgb(203, 213, 225);
}

.hero-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-media img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  display: block;
}

/* Breadcrumbs */
.breadcrumbs-bar {
  background-color: var(--color-bg-soft);
  border-bottom: 1px solid var(--color-border-card);
  padding: 12px 0;
  font-size: 0.85rem;
}

.breadcrumbs-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.breadcrumbs-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
}

.breadcrumbs-item a {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.breadcrumbs-item a:hover {
  text-decoration: underline;
  color: var(--color-brand-navy);
}

.breadcrumbs-sep {
  color: var(--color-text-muted);
}

/* Main Content Sections */
.main-article {
  padding: 50px 0 60px;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

@media (min-width: 900px) {
  .content-grid {
    grid-template-columns: 2fr 1fr;
  }
}

.content-flow h2 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-brand-midnight);
  margin: 36px 0 16px;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.content-flow h2:first-child {
  margin-top: 0;
}

.content-flow h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-brand-navy);
  margin: 26px 0 12px;
  line-height: 1.35;
}

.content-flow p {
  font-size: 1.02rem;
  margin-bottom: 18px;
  color: var(--color-text-primary);
  line-height: 1.7;
}

.content-flow ul, .content-flow ol {
  margin: 16px 0 24px 24px;
}

.content-flow li {
  margin-bottom: 10px;
  font-size: 1rem;
  color: var(--color-text-primary);
}

/* Technical Specification Callout Box */
.tech-callout-box {
  background-color: var(--color-bg-white);
  border-left: 5px solid var(--color-accent-amber);
  border-top: 1px solid var(--color-border-card);
  border-right: 1px solid var(--color-border-card);
  border-bottom: 1px solid var(--color-border-card);
  padding: 24px 26px;
  border-radius: var(--radius-sm);
  margin: 32px 0;
  box-shadow: var(--shadow-sm);
}

.tech-callout-box h3 {
  margin-top: 0;
  color: var(--color-brand-midnight);
  font-size: 1.22rem;
  margin-bottom: 10px;
}

.tech-callout-box p:last-child {
  margin-bottom: 0;
}

/* Urgent Action Box */
.urgent-action-box {
  background-color: rgb(254, 242, 242);
  border: 1px solid rgb(254, 202, 202);
  border-left: 5px solid rgb(220, 38, 38);
  padding: 22px 24px;
  border-radius: var(--radius-sm);
  margin: 32px 0;
}

.urgent-action-box h3 {
  color: rgb(153, 27, 27);
  margin-top: 0;
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.urgent-action-box p {
  color: rgb(127, 29, 29);
  font-size: 0.98rem;
  margin-bottom: 10px;
}

.urgent-action-box ul {
  color: rgb(127, 29, 29);
  margin-bottom: 0;
}

/* Call-to-Action Inline Box */
.cta-banner-box {
  background: linear-gradient(135deg, var(--color-brand-midnight) 0%, rgb(30, 64, 115) 100%);
  color: var(--color-text-light);
  padding: 34px 30px;
  border-radius: var(--radius-md);
  margin: 40px 0;
  box-shadow: var(--shadow-md);
  text-align: center;
}

.cta-banner-box h3 {
  color: var(--color-text-light);
  font-size: 1.55rem;
  font-weight: 800;
  margin-top: 0;
  margin-bottom: 12px;
}

.cta-banner-box p {
  color: rgb(226, 232, 240);
  max-width: 640px;
  margin: 0 auto 22px;
  font-size: 1.02rem;
}

.cta-banner-phone {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: var(--color-accent-amber);
  color: var(--color-text-light);
  font-size: 1.25rem;
  font-weight: 800;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  transition: background-color 0.15s, transform 0.1s;
}

.cta-banner-phone:hover, .cta-banner-phone:focus {
  background-color: var(--color-accent-amber-hover);
  color: var(--color-text-light);
}

/* Service Detail Cards Grid */
.service-cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin: 34px 0;
}

@media (min-width: 680px) {
  .service-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.service-card {
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border-card);
  border-radius: var(--radius-md);
  padding: 26px 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.15s, box-shadow 0.15s;
}

.service-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: rgb(203, 213, 225);
}

.service-card-tag {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-accent-amber);
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.service-card h3 {
  margin-top: 0;
  font-size: 1.22rem;
  color: var(--color-brand-midnight);
  margin-bottom: 10px;
}

.service-card p {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  flex-grow: 1;
  margin-bottom: 16px;
}

.service-card-link {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--color-brand-navy);
  text-decoration: underline;
  margin-top: auto;
}

/* Step Progression Display */
.workflow-steps-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin: 28px 0;
}

.workflow-step-item {
  display: flex;
  gap: 18px;
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border-card);
  padding: 20px 22px;
  border-radius: var(--radius-md);
}

.workflow-step-num {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  background-color: var(--color-brand-midnight);
  color: var(--color-text-light);
  font-weight: 800;
  font-size: 1.15rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.workflow-step-body h4 {
  font-size: 1.12rem;
  color: var(--color-brand-midnight);
  margin-bottom: 6px;
}

.workflow-step-body p {
  font-size: 0.96rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
  line-height: 1.55;
}

/* FAQs Section */
.faq-block {
  margin: 40px 0;
}

.faq-card {
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border-card);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
}

.faq-question-btn {
  width: 100%;
  background: none;
  border: none;
  padding: 18px 22px;
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-brand-midnight);
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}

.faq-question-btn:hover {
  background-color: var(--color-bg-soft);
}

.faq-icon-indicator {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-accent-amber);
  transition: transform 0.2s ease;
}

.faq-question-btn[aria-expanded="true"] .faq-icon-indicator {
  transform: rotate(45deg);
}

.faq-answer-pane {
  padding: 0 22px 20px;
  font-size: 0.98rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  display: none;
}

.faq-answer-pane.show {
  display: block;
}

/* Sidebar Styles */
.sidebar-panel {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.sidebar-box {
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border-card);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  box-shadow: var(--shadow-sm);
}

.sidebar-box h4 {
  font-size: 1.15rem;
  color: var(--color-brand-midnight);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-border-subtle);
}

.sidebar-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sidebar-link {
  font-size: 0.94rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  display: block;
  padding: 6px 0;
  border-bottom: 1px dotted var(--color-border-card);
  transition: color 0.15s, padding-left 0.15s;
}

.sidebar-link:hover {
  color: var(--color-accent-amber);
  padding-left: 4px;
}

.sidebar-contact-card {
  background: linear-gradient(135deg, var(--color-brand-navy) 0%, var(--color-brand-midnight) 100%);
  color: var(--color-text-light);
  border-radius: var(--radius-md);
  padding: 26px 20px;
  text-align: center;
}

.sidebar-contact-card h4 {
  color: var(--color-text-light);
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.sidebar-contact-card p {
  font-size: 0.92rem;
  color: rgb(226, 232, 240);
  margin-bottom: 18px;
}

.btn-sidebar-call {
  display: inline-block;
  background-color: var(--color-accent-amber);
  color: var(--color-text-light);
  font-weight: 800;
  font-size: 1rem;
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  text-decoration: none;
}

.btn-sidebar-call:hover {
  background-color: var(--color-accent-amber-hover);
  color: var(--color-text-light);
}

/* Footer */
.footer-site {
  background-color: var(--color-brand-midnight);
  color: rgb(203, 213, 225);
  padding: 56px 0 30px;
  border-top: 4px solid var(--color-accent-amber);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  margin-bottom: 40px;
}

@media (min-width: 600px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
  }
}

.footer-col h5 {
  color: var(--color-text-light);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-col p {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 14px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer-col li a {
  color: rgb(203, 213, 225);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.15s;
}

.footer-col li a:hover {
  color: var(--color-accent-amber);
  text-decoration: underline;
}

.footer-bottom-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 24px;
  font-size: 0.84rem;
  color: rgb(148, 163, 184);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

@media (min-width: 768px) {
  .footer-bottom-bar {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

/* Mobile Sticky Bar */
.sticky-mobile-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-brand-midnight);
  border-top: 2px solid var(--color-accent-amber);
  padding: 10px 16px;
  z-index: 1020;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.2);
}

@media (min-width: 820px) {
  .sticky-mobile-bar {
    display: none;
  }
}

.sticky-bar-text {
  font-size: 0.82rem;
  color: rgb(226, 232, 240);
  font-weight: 600;
  line-height: 1.3;
}

.sticky-bar-btn {
  background-color: var(--color-accent-amber);
  color: var(--color-text-light);
  font-weight: 800;
  font-size: 0.95rem;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  white-space: nowrap;
}

.sticky-bar-btn:hover {
  background-color: var(--color-accent-amber-hover);
  color: var(--color-text-light);
}

/* Accessibility Utilities */
.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;
}