/* ============================================
   Knox Pressure Pros — Styles
   Rank & Rent: Pressure Washing Knoxville TN
   ============================================ */

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

:root {
  --primary: #0b3d6f;
  --primary-dark: #072a4d;
  --primary-light: #e8f0fa;
  --accent: #1a8cff;
  --accent-dark: #0d6edb;
  --accent-light: #d6ebff;
  --surface: #ffffff;
  --bg: #f5f8fc;
  --text: #1a1a2e;
  --text-muted: #5a6270;
  --text-light: #8a929e;
  --border: #dde4ed;
  --green: #22c55e;
  --amber: #f59e0b;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 100px;
  --shadow-sm: 0 1px 3px rgba(11,61,111,0.06);
  --shadow-md: 0 4px 16px rgba(11,61,111,0.08);
  --shadow-lg: 0 8px 32px rgba(11,61,111,0.12);
  --shadow-xl: 0 16px 48px rgba(11,61,111,0.16);
  --container-max: 1200px;
  --transition: 0.3s ease;
  --transition-fast: 0.15s ease;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: hidden; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'DM Sans', 'Inter', system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }

a { color: var(--accent); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--accent-dark); }

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

.container { max-width: var(--container-max); margin: 0 auto; padding: 0 1.5rem; }

section { padding: 5rem 0; }

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section-title { margin-bottom: 1rem; }
.section-subtitle { color: var(--text-muted); font-size: 1.1rem; max-width: 640px; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: 'DM Sans', 'Inter', system-ui, sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.5);
}
.btn-outline-white:hover {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}
.btn-outline:hover {
  background: var(--accent);
  color: #fff;
}

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--primary);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  z-index: 9999;
}
.skip-link:focus { top: 1rem; }

/* --- Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-md); }

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary);
  text-decoration: none;
}
.logo:hover { color: var(--primary); }

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.nav-links a:hover { color: var(--accent); background: var(--primary-light); }

.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--accent) !important;
}

.nav-dropdown { position: relative; }
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 220px;
  padding: 0.5rem 0;
  list-style: none;
  z-index: 100;
}
.nav-dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu a {
  display: block;
  padding: 10px 20px;
  font-size: 0.88rem;
  border-radius: 0;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* --- Urgency Banner --- */
.urgency-banner {
  background: var(--primary);
  color: #fff;
  text-align: center;
  padding: 10px 1rem;
  font-size: 0.88rem;
  font-weight: 500;
}
.urgency-banner a { color: var(--accent-light); text-decoration: underline; }

/* --- Hero --- */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(26,140,255,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 1rem;
}

.hero h1 { color: #fff; margin-bottom: 1.25rem; }
.hero h1 span { color: var(--accent-light); }

.hero-desc {
  font-size: 1.1rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.85);
  margin-bottom: 2rem;
  max-width: 560px;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.hero-trust-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.8);
}
.hero-trust-item svg { color: var(--green); flex-shrink: 0; }

.hero-image {
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-image-placeholder {
  width: 100%;
  max-width: 500px;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  border: 2px solid rgba(255,255,255,0.1);
}

/* --- Trust Bar --- */
.trust-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 0;
}
.trust-bar-inner {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.trust-bar-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
}
.trust-bar-item svg { color: var(--accent); }

/* --- Trust Badges --- */
.trust-badges {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  padding: 2rem 0;
}
.trust-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.trust-badge-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 0.75rem;
}
.trust-badge-icon.green { background: #dcfce7; color: #16a34a; }
.trust-badge-icon.blue { background: var(--accent-light); color: var(--accent); }
.trust-badge-icon.amber { background: #fef3c7; color: #d97706; }
.trust-badge-icon.purple { background: #f3e8ff; color: #9333ea; }
.trust-badge-label { font-size: 0.85rem; font-weight: 600; color: var(--text); }

/* --- Services Grid --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
  position: relative;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.service-card { text-align: left; }

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  color: var(--accent);
}

.service-card h3 { margin-bottom: 0.75rem; }
.service-card p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 1rem; }

.service-price {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--green);
  background: #f0fdf4;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 0.5rem;
}

.learn-more {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
}
.learn-more:hover { color: var(--accent-dark); }

.high-margin-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  background: var(--accent);
  color: #fff;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

/* --- Testimonials --- */
.testimonials { background: var(--primary-light); }
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.testimonial-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.testimonial-stars { color: var(--amber); font-size: 1.1rem; margin-bottom: 1rem; }
.testimonial-text { color: var(--text); font-size: 0.95rem; line-height: 1.7; margin-bottom: 1.25rem; font-style: italic; }
.testimonial-author { font-weight: 600; color: var(--primary); font-size: 0.9rem; }
.testimonial-location { color: var(--text-muted); font-size: 0.82rem; }

/* --- CTA Section --- */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  text-align: center;
  padding: 4rem 0;
}
.cta-section h2 { color: #fff; margin-bottom: 1rem; }
.cta-section p { color: rgba(255,255,255,0.85); margin-bottom: 2rem; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* --- Footer --- */
.footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.75);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}
.footer h4 { color: #fff; font-size: 1rem; margin-bottom: 1rem; }
.footer-about { font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 0.5rem; }
.footer-links a { color: rgba(255,255,255,0.7); font-size: 0.88rem; }
.footer-links a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
}

/* --- Contact Form --- */
.contact-form {
  display: grid;
  gap: 1.25rem;
  max-width: 600px;
}
.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--surface);
  transition: border-color var(--transition-fast);
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(26,140,255,0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }

/* --- FAQ --- */
.faq-list { max-width: 800px; margin: 2rem auto 0; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  background: var(--surface);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border: none;
  background: none;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  font-family: inherit;
}
.faq-question::after { content: '+'; font-size: 1.3rem; color: var(--accent); transition: transform var(--transition-fast); }
.faq-item.active .faq-question::after { content: '−'; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-answer-inner { padding: 0 1.5rem 1.25rem; color: var(--text-muted); font-size: 0.95rem; line-height: 1.7; }
.faq-item.active .faq-answer { max-height: 500px; }

/* --- Page Hero (inner pages) --- */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  padding: 4rem 0 3rem;
  text-align: center;
}
.page-hero h1 { color: #fff; margin-bottom: 1rem; }
.page-hero p { color: rgba(255,255,255,0.85); max-width: 600px; margin: 0 auto; font-size: 1.1rem; }

/* --- Breadcrumbs --- */
.breadcrumbs {
  padding: 1rem 0;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.breadcrumbs a { color: var(--accent); }
.breadcrumbs span { margin: 0 6px; }

/* --- Content sections --- */
.content-section { padding: 4rem 0; }
.content-section h2 { margin-bottom: 1.5rem; }
.content-section p { color: var(--text-muted); margin-bottom: 1rem; line-height: 1.8; }
.content-section ul { padding-left: 1.5rem; margin-bottom: 1rem; }
.content-section li { color: var(--text-muted); margin-bottom: 0.5rem; line-height: 1.7; }

/* --- Pricing Table --- */
.pricing-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: var(--surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
}
.pricing-table th {
  background: var(--primary);
  color: #fff;
  padding: 14px 20px;
  text-align: left;
  font-size: 0.9rem;
  font-weight: 600;
}
.pricing-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
  color: var(--text);
}
.pricing-table tr:last-child td { border-bottom: none; }
.pricing-table tr:nth-child(even) td { background: var(--bg); }

/* --- Sticky Mobile CTA --- */
.mobile-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: var(--accent);
  padding: 14px 1.5rem;
  text-align: center;
}
.mobile-cta a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #fff;
  font-size: 1.05rem;
  font-weight: 700;
  text-decoration: none;
}

/* --- 404 --- */
.error-page {
  text-align: center;
  padding: 6rem 1.5rem;
}
.error-page h1 { font-size: clamp(4rem, 10vw, 8rem); color: var(--accent); }
.error-page p { color: var(--text-muted); margin-bottom: 2rem; }

/* --- Location Grid --- */
.location-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}
.location-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  transition: all var(--transition);
}
.location-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}
.location-card h3 { margin-bottom: 0.5rem; font-size: 1.1rem; }
.location-card p { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 1rem; }

/* --- Two Column Layout --- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

/* --- Inline CTA Box --- */
.inline-cta {
  background: var(--primary-light);
  border: 2px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  margin: 2rem 0;
}
.inline-cta h3 { margin-bottom: 0.75rem; }
.inline-cta p { color: var(--text-muted); margin-bottom: 1.25rem; }

/* --- Responsive --- */
@media (max-width: 768px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-buttons { justify-content: center; }
  .hero-trust { justify-content: center; }
  .hero-image { display: none; }

  .menu-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
  }
  .nav-links.active { display: flex; }
  .nav-links a { padding: 12px 16px; }
  .dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    padding-left: 1rem;
  }
  .nav-dropdown:hover .dropdown-menu { display: block; }

  .footer-grid { grid-template-columns: 1fr; }
  .trust-bar-inner { gap: 1rem; }
  .trust-badges { gap: 0.75rem; }
  .two-col { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }

  .mobile-cta { display: block; }
  body { padding-bottom: 60px; }
  .footer { padding-bottom: 70px; }
}

@media (max-width: 480px) {
  .container { padding: 0 1rem; }
  section { padding: 3rem 0; }
  .hero { padding: 3rem 0 2.5rem; }
  .page-hero { padding: 3rem 0 2rem; }
}