/* ==========================================================================
   Lou's Delta Detailing - Premium Mobile Car Care Stylesheet
   Crafted specifically for East Bay & Contra Costa County, CA
   ========================================================================== */

:root {
  --color-primary: #0b132b;        /* Midnight Carbon */
  --color-primary-light: #1c2541;  /* Deep Navy */
  --color-accent: #0096c7;         /* California Hydro Blue */
  --color-accent-hover: #0077b6;   /* Rich Deep Blue */
  --color-accent-subtle: #e0f2fe;  /* Ice Blue Tint */
  --color-gold: #f59e0b;           /* Pro Finish Amber */
  --color-success: #10b981;        /* Emerald Gloss */
  
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;         /* Clean Studio Slate */
  --color-bg-dark: #070c18;
  --color-border: #e2e8f0;
  --color-border-subtle: #f1f5f9;
  --color-text: #334155;
  --color-text-dark: #0f172a;
  --color-text-muted: #64748b;
  --color-text-light: #f8fafc;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  --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-20: 5rem;
  
  --container-max: 1200px;
  --container-narrow: 860px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(11, 19, 43, 0.08), 0 2px 4px -2px rgba(11, 19, 43, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(11, 19, 43, 0.08), 0 4px 6px -4px rgba(11, 19, 43, 0.03);
  --shadow-xl: 0 20px 25px -5px rgba(11, 19, 43, 0.12), 0 8px 10px -6px rgba(11, 19, 43, 0.04);
  
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-dark);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.025em;
}

h1 { font-size: clamp(2.35rem, 4vw + 1rem, 3.6rem); }
h2 { font-size: clamp(1.85rem, 2.5vw + 0.75rem, 2.65rem); }
h3 { font-size: clamp(1.3rem, 1.5vw + 0.5rem, 1.8rem); }

p { margin-bottom: var(--space-4); }
p:last-child { margin-bottom: 0; }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.container-narrow { max-width: var(--container-narrow); }

/* Header Notice Bar */
.top-announcement {
  background-color: var(--color-primary);
  color: #94a3b8;
  font-size: 0.85rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.top-location-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #e2e8f0;
  font-weight: 500;
}

.top-phone-cta a {
  color: #38bdf8;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.top-phone-cta a:hover { color: #ffffff; }

/* Sticky Navbar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.85rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--color-primary);
  letter-spacing: -0.03em;
}

.brand-icon { width: 36px; height: 36px; color: var(--color-accent); }
.brand-accent { color: var(--color-accent); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  padding: var(--space-2) 0;
  position: relative;
}

.nav-link:hover, .nav-link.active { color: var(--color-accent); }
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2.5px;
  background-color: var(--color-accent);
  border-radius: var(--radius-full);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.85rem 1.65rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(0, 150, 199, 0.35);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(0, 150, 199, 0.45);
}

.btn-secondary {
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn-secondary:hover { background-color: #e2e8f0; }

.btn-lg { padding: 1.05rem 2.2rem; font-size: 1.05rem; }
.btn-sm { padding: 0.55rem 1.1rem; font-size: 0.875rem; }

/* Hero Section */
.hero {
  padding: var(--space-16) 0 var(--space-20);
  background: linear-gradient(180deg, #ffffff 0%, var(--color-bg-alt) 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 960px) {
  .hero-grid { grid-template-columns: 1.2fr 0.8fr; }
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 700;
  background-color: var(--color-accent-subtle);
  color: #0369a1;
  border: 1px solid rgba(0, 150, 199, 0.2);
}

.badge-gold {
  background-color: #fef3c7;
  color: #b45309;
  border-color: rgba(245, 158, 11, 0.25);
}

.hero-lead {
  font-size: 1.18rem;
  color: var(--color-text-muted);
  margin: var(--space-4) 0 var(--space-8);
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.trust-bullets {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  font-size: 0.925rem;
  font-weight: 700;
  color: var(--color-text-dark);
}

.bullet-item { display: flex; align-items: center; gap: 8px; }
.bullet-item svg { width: 22px; height: 22px; color: var(--color-accent); }

/* Quick Booking Card */
.hero-booking-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
  padding: var(--space-8);
}

.booking-header { margin-bottom: var(--space-6); text-align: center; }
.booking-header h3 { font-size: 1.45rem; margin-bottom: 4px; }
.booking-header p { font-size: 0.9rem; color: var(--color-text-muted); }

.form-group { margin-bottom: var(--space-4); }
.form-label { display: block; font-size: 0.875rem; font-weight: 700; color: var(--color-text-dark); margin-bottom: 6px; }
.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  font-size: 0.95rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: #ffffff;
  font-family: inherit;
}
.form-control:focus { outline: none; border-color: var(--color-accent); }

/* Vehicle Class Selector Pills */
.vehicle-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.vehicle-pill {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-2);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-size: 0.85rem;
  font-weight: 700;
  background-color: var(--color-bg-alt);
}

.vehicle-pill.active {
  border-color: var(--color-accent);
  background-color: var(--color-accent-subtle);
  color: var(--color-accent-hover);
}

/* Section Common */
.section { padding: var(--space-16) 0; }
.section-alt { background-color: var(--color-bg-alt); }
.section-header { margin-bottom: var(--space-12); text-align: center; max-width: 740px; margin-left: auto; margin-right: auto; }
.section-subtitle { font-size: 1.125rem; color: var(--color-text-muted); margin-top: var(--space-3); }

/* Pricing & Packages Grid */
.packages-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}
@media (min-width: 768px) { .packages-grid { grid-template-columns: repeat(3, 1fr); } }

.package-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
}

.package-card.featured {
  border-color: var(--color-accent);
  box-shadow: 0 10px 25px -5px rgba(0, 150, 199, 0.2);
  transform: scale(1.03);
}

.featured-ribbon {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-accent);
  color: #ffffff;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.package-price {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--color-primary);
  margin: var(--space-4) 0 var(--space-2);
}

.package-price-sub { font-size: 0.85rem; color: var(--color-text-muted); font-weight: 500; }
.package-feature-list { list-style: none; margin: var(--space-6) 0 var(--space-8); display: flex; flex-direction: column; gap: var(--space-3); flex-grow: 1; }
.package-feature-item { display: flex; align-items: flex-start; gap: 8px; font-size: 0.925rem; color: var(--color-text); }
.package-feature-item svg { width: 18px; height: 18px; color: var(--color-accent); flex-shrink: 0; margin-top: 2px; }

/* Service Requirements Box */
.requirements-callout {
  background-color: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  margin-top: var(--space-12);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
@media (min-width: 768px) {
  .requirements-callout { flex-direction: row; align-items: center; justify-content: space-between; }
}

/* Service Area Coverage */
.coverage-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.coverage-chip {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-primary);
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}
@media (min-width: 768px) { .testimonials-grid { grid-template-columns: repeat(3, 1fr); } }

.testimonial-card {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.rating-stars { display: flex; gap: 4px; color: #f59e0b; margin-bottom: var(--space-4); }
.rating-stars svg { width: 18px; height: 18px; fill: currentColor; }
.testimonial-quote { font-size: 0.95rem; font-style: italic; color: var(--color-text); }
.testimonial-client { margin-top: var(--space-4); font-weight: 800; color: var(--color-primary); font-size: 0.95rem; }
.testimonial-neighborhood { font-size: 0.825rem; color: var(--color-text-muted); }

/* FAQ Accordion */
.faq-accordion { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--space-4); }
.faq-item { border: 1px solid var(--color-border); border-radius: var(--radius-md); background: #ffffff; overflow: hidden; }
.faq-item.active { border-color: var(--color-accent); }
.faq-header { width: 100%; background: none; border: none; padding: var(--space-5) var(--space-6); text-align: left; font-family: var(--font-heading); font-size: 1.05rem; font-weight: 700; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-icon { width: 20px; height: 20px; transition: transform var(--transition-normal); }
.faq-item.active .faq-icon { transform: rotate(180deg); color: var(--color-accent); }
.faq-body { max-height: 0; overflow: hidden; transition: max-height 300ms ease; padding: 0 var(--space-6); }
.faq-item.active .faq-body { padding-bottom: var(--space-5); color: var(--color-text-muted); font-size: 0.95rem; }

/* Footer */
.site-footer {
  background-color: var(--color-bg-dark);
  color: #94a3b8;
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}
@media (min-width: 640px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1.25fr; } }

.footer-brand .brand-logo { color: #ffffff; margin-bottom: var(--space-4); }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); }
.footer-links a { color: #94a3b8; }
.footer-links a:hover { color: #ffffff; }

.footer-contact-row { display: flex; gap: var(--space-3); margin-bottom: var(--space-3); font-size: 0.9rem; }
.footer-contact-row svg { width: 20px; height: 20px; color: var(--color-accent); flex-shrink: 0; }
.footer-contact-row a { color: #cbd5e1; font-weight: 700; }
.footer-contact-row a:hover { color: var(--color-accent); }

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: 0.85rem;
}
@media (min-width: 768px) { .footer-bottom { flex-direction: row; } }
.footer-bottom-links { display: flex; gap: var(--space-6); }
.footer-bottom-links a { color: #94a3b8; }
.footer-bottom-links a:hover { color: #ffffff; }