/* =============================================================
   ERTK — Erie Right to Know, Inc.
   style.css — Single shared stylesheet
   ============================================================= */

/* ── Custom Properties ───────────────────────────────────────── */
:root {
  /* Primary palette */
  --color-primary: #1C75BC;
  --color-primary-hover: #155D96;
  --color-secondary: #B6B9BD;

  /* Backgrounds */
  --color-bg: #FFFFFF;
  --color-surface: #F4F5F6;
  --color-dark: #1A1A1A;
  --color-dark-surface: #222222;

  /* Text */
  --color-text: #1A1A1A;
  --color-text-muted: #5A5D61;
  --color-text-on-dark: #F4F5F6;
  --color-text-on-dark-muted: #B6B9BD;

  /* Accent / Border */
  --color-accent: #1C75BC;
  --color-accent-hover: #155D96;
  --color-border: #B6B9BD;
  --color-border-light: #E0E1E3;

  /* Typography */
  --font-heading: 'Arial', 'Helvetica Neue', Helvetica, sans-serif;
  --font-body: 'Arial', 'Helvetica Neue', Helvetica, sans-serif;

  /* Spacing */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 32px;
  --space-lg: 64px;
  --space-xl: 96px;
  --space-section: 80px;

  /* Layout */
  --max-width: 1100px;
  --transition-speed: 0.3s;
  --border-radius: 4px;
  --border-radius-card: 8px;
}

/* ── Reset / Base ────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-speed);
}

a:hover {
  color: var(--color-primary-hover);
}

ul, ol {
  list-style: none;
}

/* ── Skip to Content ─────────────────────────────────────────── */
.skip-to-content {
  position: absolute;
  top: -100px;
  left: var(--space-sm);
  background: var(--color-primary);
  color: #fff;
  padding: 10px 18px;
  border-radius: var(--border-radius);
  font-weight: 700;
  z-index: 9999;
  transition: top 0.2s;
}

.skip-to-content:focus {
  top: var(--space-sm);
}

/* ── Typography ──────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-text);
}

h1 { font-size: 40px; line-height: 1.2; }
h2 { font-size: 28px; line-height: 1.3; }
h3 { font-size: 22px; line-height: 1.3; }

p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

/* ── Layout Helpers ──────────────────────────────────────────── */
.container {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-sm);
  padding-right: var(--space-sm);
}

.section-pad {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
}

.bg-white   { background-color: var(--color-bg); }
.bg-surface { background-color: var(--color-surface); }
.bg-dark    { background-color: var(--color-dark); }

.text-center { text-align: center; }

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition-speed),
              color var(--transition-speed),
              border-color var(--transition-speed),
              box-shadow var(--transition-speed);
  line-height: 1.2;
}

.btn:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}

/* Primary */
.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

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

/* Secondary — on light backgrounds */
.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background-color: rgba(28, 117, 188, 0.1);
  color: var(--color-primary);
}

/* Secondary — on dark backgrounds */
.btn-secondary-dark {
  background-color: transparent;
  color: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.9);
  padding: 11px 26px;
}

.btn-secondary-dark:hover,
.btn-secondary-dark:focus {
  background-color: rgba(255, 255, 255, 0.1);
  color: #fff;
}

/* Button group spacing */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
}

/* ── Navigation ──────────────────────────────────────────────── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-bg);
  transition: box-shadow var(--transition-speed);
}

.site-nav.scrolled {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 92px;
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo img {
  display: block;
  max-height: 100px;
  width: auto;
  height: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 400;
  color: var(--color-text);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-speed), border-color var(--transition-speed);
}

.nav-links a:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.nav-links a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--border-radius);
}

.nav-toggle:focus-visible {
  outline: 3px solid var(--color-primary);
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-speed), opacity var(--transition-speed);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav overlay */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(26, 26, 26, 0.55);
  z-index: 999;
}

.nav-overlay.open {
  display: block;
}

/* Mobile nav drawer */
.nav-mobile {
  display: none;
  position: fixed;
  top: 0;
  right: -300px;
  width: 280px;
  height: 100%;
  background-color: var(--color-bg);
  z-index: 1001;
  padding: 80px var(--space-md) var(--space-md);
  flex-direction: column;
  gap: 0;
  transition: right var(--transition-speed);
  overflow-y: auto;
}

.nav-mobile.open {
  right: 0;
}

.nav-mobile a {
  display: flex;
  align-items: center;
  font-size: 16px;
  font-weight: 400;
  color: var(--color-text);
  text-decoration: none;
  padding: 0 var(--space-sm);
  min-height: 52px;
  border-bottom: 1px solid var(--color-border-light);
  transition: color var(--transition-speed), background-color var(--transition-speed);
}

.nav-mobile a:hover,
.nav-mobile a.active {
  color: var(--color-primary);
  background-color: var(--color-surface);
}

/* ── Hero Section ────────────────────────────────────────────── */
.hero {
  position: relative;
  background-color: var(--color-dark);
  background-image: url('../images/ertk-hero-safety-worker.png');
  background-size: cover;
  background-position: center;
  color: var(--color-text-on-dark);
  padding-top: 120px;
  padding-bottom: 120px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(26, 26, 26, 0.85), rgba(26, 26, 26, 0.85));
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero h1 {
  color: #fff;
  margin-bottom: var(--space-sm);
}

.hero .subheadline {
  font-size: 18px;
  color: var(--color-text-on-dark);
  line-height: 1.6;
  margin-bottom: var(--space-md);
  max-width: 680px;
}

.hero .trust-markers {
  font-size: 14px;
  color: var(--color-text-on-dark-muted);
  margin-top: var(--space-sm);
  letter-spacing: 0.03em;
}

/* Hero — non-homepage variant (no background image) */
.hero-inner {
  background-image: none;
  background-color: var(--color-dark);
  padding-top: 80px;
  padding-bottom: 80px;
}

.hero-inner::before {
  display: none;
}

/* ── Problem Section ─────────────────────────────────────────── */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.problem-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius-card);
  padding: var(--space-md);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: box-shadow var(--transition-speed);
}

.problem-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

/* ── How It Works ────────────────────────────────────────────── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.step-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  font-family: var(--font-heading);
  flex-shrink: 0;
}

.step-item h3 {
  color: var(--color-text);
}

/* ── Services Overview ───────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.service-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius-card);
  padding: var(--space-md);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: box-shadow var(--transition-speed), transform var(--transition-speed);
  text-decoration: none;
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.service-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  transform: translateY(-2px);
  color: var(--color-text);
}

.service-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.service-card-full {
  grid-column: 1 / -1;
}

/* ── About Section ───────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-lg);
  align-items: center;
}

.about-grid.reverse {
  grid-template-columns: 380px 1fr;
}

.about-grid.reverse .about-photo {
  order: -1;
}

.about-photo img {
  border-radius: var(--border-radius-card);
  width: 100%;
  height: auto;
}

/* ── FAQ Accordion ───────────────────────────────────────────── */
.faq-list {
  margin-top: var(--space-lg);
}

.faq-item {
  border-bottom: 1px solid var(--color-border-light);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border-light);
}

.faq-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  transition: color var(--transition-speed);
}

.faq-trigger:hover {
  color: var(--color-primary);
}

.faq-trigger:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

.faq-indicator {
  flex-shrink: 0;
  font-size: 22px;
  font-weight: 400;
  color: var(--color-text-muted);
  line-height: 1;
  transition: transform var(--transition-speed);
  user-select: none;
}

.faq-item.open .faq-indicator {
  transform: rotate(45deg);
}

.faq-body {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-body-inner {
  padding-bottom: var(--space-sm);
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.6;
}

/* ── Final CTA Section ───────────────────────────────────────── */
.cta-section {
  background-color: var(--color-dark);
  color: var(--color-text-on-dark);
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
  text-align: center;
}

.cta-section h2 {
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-sm);
}

.cta-section p {
  color: var(--color-text-on-dark-muted);
  font-size: 18px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-md);
}

.cta-section .serving-note {
  font-size: 14px;
  color: var(--color-text-on-dark-muted);
  margin-top: var(--space-md);
}

.cta-section .btn-group {
  justify-content: center;
}

/* ── Section Headlines ───────────────────────────────────────── */
.section-headline {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.section-headline.light {
  color: var(--color-text-on-dark);
}

.section-intro {
  font-size: 16px;
  color: var(--color-text-muted);
  max-width: 700px;
  margin-bottom: var(--space-md);
}

/* ── Regulatory Areas List ───────────────────────────────────── */
.regulatory-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.regulatory-item {
  padding: var(--space-sm) var(--space-sm) var(--space-sm) var(--space-md);
  border-left: 3px solid var(--color-primary);
  background-color: var(--color-bg);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.regulatory-item strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.regulatory-item p {
  font-size: 15px;
  color: var(--color-text-muted);
  margin: 0;
}

/* ── Generic Content Blocks ──────────────────────────────────── */
.content-block {
  max-width: 800px;
}

.content-block h2 {
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.content-block p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
}

/* ── Penalty Callout ─────────────────────────────────────────── */
.penalty-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.penalty-card {
  background-color: var(--color-dark-surface);
  border-radius: var(--border-radius-card);
  padding: var(--space-md);
  text-align: center;
}

.penalty-card .amount {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  display: block;
  margin-bottom: var(--space-xs);
}

.penalty-card .label {
  font-size: 14px;
  color: var(--color-text-on-dark-muted);
}

/* ── Contact Page ────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
  margin-top: var(--space-lg);
}

.contact-info h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.contact-info p {
  color: var(--color-text-muted);
  font-size: 15px;
}

.contact-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.contact-phone-display {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.contact-address {
  font-style: normal;
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ── 404 Page ────────────────────────────────────────────────── */
.not-found {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xl) var(--space-sm);
}

.not-found h1 {
  font-size: 80px;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.not-found h2 {
  margin-bottom: var(--space-sm);
}

.not-found p {
  color: var(--color-text-muted);
  max-width: 500px;
  margin-bottom: var(--space-md);
}

/* ── Footer ──────────────────────────────────────────────────── */
.site-footer {
  background-color: var(--color-dark);
  color: var(--color-text-on-dark);
  padding-top: var(--space-lg);
  padding-bottom: var(--space-lg);
}

.footer-inner {
  display: grid;
  grid-template-columns: 200px 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.footer-logo img {
  width: 160px;
  height: auto;
  margin-bottom: var(--space-sm);
}

.footer-contact p {
  font-size: 14px;
  color: var(--color-text-on-dark-muted);
  line-height: 1.7;
  margin-bottom: 4px;
}

.footer-contact a {
  color: var(--color-text-on-dark-muted);
  text-decoration: none;
  transition: color var(--transition-speed);
}

.footer-contact a:hover {
  color: var(--color-text-on-dark);
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav a {
  font-size: 14px;
  color: var(--color-text-on-dark-muted);
  text-decoration: none;
  transition: color var(--transition-speed);
}

.footer-nav a:hover {
  color: var(--color-text-on-dark);
}

.footer-bottom {
  margin-top: var(--space-md);
  padding-top: var(--space-sm);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  color: var(--color-text-on-dark-muted);
}

/* ── Scroll Animation Base States ────────────────────────────── */
.anim {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.anim.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Delay helpers */
.anim-d1 { transition-delay: 0.1s; }
.anim-d2 { transition-delay: 0.2s; }
.anim-d3 { transition-delay: 0.3s; }
.anim-d4 { transition-delay: 0.4s; }
.anim-d5 { transition-delay: 0.5s; }

/* Hero-specific entrance */
.hero-anim {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.hero-anim.visible {
  opacity: 1;
  transform: translateY(0);
}

.hero-anim.anim-d1 { transition-delay: 0.15s; }
.hero-anim.anim-d2 { transition-delay: 0.3s; }
.hero-anim.anim-d3 { transition-delay: 0.45s; }

/* CTA button delayed entrance */
.cta-anim {
  transition-delay: 0.3s;
}

/* ── Responsive — Tablet (768px) ─────────────────────────────── */
@media (max-width: 768px) {
  :root {
    --space-section: 60px;
  }

  h1 { font-size: 28px; }
  h2 { font-size: 22px; }
  h3 { font-size: 18px; }

  .hero {
    padding-top: 80px;
    padding-bottom: 80px;
    background-position: center top;
  }

  .hero-inner {
    padding-top: 60px;
    padding-bottom: 60px;
  }

  .hero .subheadline {
    font-size: 16px;
  }

  .problem-grid {
    grid-template-columns: 1fr;
  }

  .steps-grid {
    grid-template-columns: 1fr;
  }

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

  .service-card-full {
    grid-column: auto;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-grid .about-photo {
    order: -1;
  }

  .about-grid.reverse .about-photo {
    order: -1;
  }

  .about-photo img {
    max-width: 320px;
    margin: 0 auto;
  }

  .regulatory-list {
    grid-template-columns: 1fr;
  }

  .penalty-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  /* Nav: show hamburger, hide desktop links */
  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-mobile {
    display: flex;
  }

}

/* ── Responsive — Mobile (375px) ─────────────────────────────── */
@media (max-width: 440px) {
  .hero .subheadline {
    font-size: 15px;
  }

  .btn {
    padding: 12px 22px;
    font-size: 15px;
  }

  .btn-group {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .contact-phone-display {
    font-size: 22px;
  }

}

/* ── Focus States ────────────────────────────────────────────── */
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 2px;
}