/* ============================================
   POSH WASH — Global Styles
   Mobile-first, SEO-optimized, fast-loading
   ============================================ */

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

:root {
  /* Brand Colors */
  --blue-primary: #0084FF;
  --blue-secondary: #0EA1FD;
  --blue-accent: #009CFF;
  --blue-dark: #0062CC;
  --blue-deeper: #004A99;
  --navy: #0A1628;
  --navy-light: #162035;

  /* Neutrals */
  --white: #FFFFFF;
  --off-white: #F8FAFE;
  --gray-50: #F0F4FA;
  --gray-100: #E2E8F0;
  --gray-200: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-600: #475569;
  --gray-800: #1E293B;

  /* Functional */
  --text-primary: var(--navy);
  --text-secondary: var(--gray-600);
  --text-light: var(--gray-400);
  --bg-primary: var(--white);
  --bg-secondary: var(--off-white);
  --bg-blue: #EBF5FF;

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;

  /* Borders */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.06);
  --shadow-md: 0 4px 12px rgba(10, 22, 40, 0.08);
  --shadow-lg: 0 8px 30px rgba(10, 22, 40, 0.1);
  --shadow-xl: 0 16px 50px rgba(10, 22, 40, 0.12);
  --shadow-blue: 0 4px 20px rgba(0, 132, 255, 0.25);

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration: 0.3s;
}

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

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

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

h1 { font-size: clamp(2rem, 5vw, 3.25rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.6rem, 4vw, 2.5rem); letter-spacing: -0.02em; }
h3 { font-size: clamp(1.2rem, 3vw, 1.5rem); letter-spacing: -0.01em; }
h4 { font-size: 1.125rem; }

p { color: var(--text-secondary); line-height: 1.7; }
p + p { margin-top: var(--space-md); }

.text-center { text-align: center; }
.text-blue { color: var(--blue-primary); }
.text-white { color: var(--white); }

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

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

section {
  padding: var(--space-3xl) 0;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--duration) var(--ease);
  white-space: nowrap;
}

.btn--primary {
  background: var(--blue-primary);
  color: var(--white);
  box-shadow: var(--shadow-blue);
}

.btn--primary:hover {
  background: var(--blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(0, 132, 255, 0.35);
}

.btn--secondary {
  background: var(--white);
  color: var(--blue-primary);
  border: 2px solid var(--blue-primary);
}

.btn--secondary:hover {
  background: var(--bg-blue);
  transform: translateY(-2px);
}

.btn--white {
  background: var(--white);
  color: var(--blue-primary);
  box-shadow: var(--shadow-md);
}

.btn--white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--lg {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
}

/* --- Header / Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--duration) var(--ease);
}

.header--scrolled {
  border-bottom-color: var(--gray-100);
  box-shadow: var(--shadow-sm);
}

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

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--blue-primary);
  letter-spacing: -0.02em;
}

.header__logo img {
  height: 40px;
  width: 40px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.header__nav {
  display: none;
  align-items: center;
  gap: var(--space-xl);
}

.header__nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--duration) var(--ease);
}

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

.header__cta {
  display: none;
}

.header__menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.header__menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: all var(--duration) var(--ease);
}

.header__menu-btn.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.header__menu-btn.active span:nth-child(2) { opacity: 0; }
.header__menu-btn.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--white);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  transform: translateX(100%);
  transition: transform var(--duration) var(--ease);
  z-index: 999;
}

.mobile-menu.active { transform: translateX(0); }

.mobile-menu a {
  display: block;
  padding: var(--space-md) 0;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-primary);
  border-bottom: 1px solid var(--gray-100);
}

.mobile-menu .btn {
  margin-top: var(--space-md);
  width: 100%;
  text-align: center;
}

/* --- Hero --- */
.hero {
  padding: calc(72px + var(--space-3xl)) 0 var(--space-3xl);
  background: linear-gradient(180deg, var(--bg-blue) 0%, var(--white) 100%);
  overflow: hidden;
}

.hero__inner {
  display: grid;
  gap: var(--space-2xl);
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.5rem 1rem;
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
  width: fit-content;
}

.hero__badge span { color: var(--blue-primary); font-weight: 600; }

.hero__content { max-width: 600px; }

.hero__title {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.hero__title span {
  display: block;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(1.05rem, 2.5vw, 1.2rem);
  margin-bottom: var(--space-xl);
  max-width: 500px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.hero__image {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__image img {
  max-height: 420px;
  width: auto;
  filter: drop-shadow(0 20px 40px rgba(0, 132, 255, 0.15));
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-2xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--gray-100);
}

.hero__stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--blue-primary);
}

.hero__stat-label {
  font-size: 0.8125rem;
  color: var(--text-light);
  margin-top: var(--space-xs);
}

/* --- Trust Bar --- */
.trust-bar {
  padding: var(--space-2xl) 0;
  background: var(--white);
  border-top: 1px solid var(--gray-50);
  border-bottom: 1px solid var(--gray-50);
}

.trust-bar__label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-light);
  text-align: center;
  margin-bottom: var(--space-lg);
}

.trust-bar__items {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-lg) var(--space-2xl);
}

.trust-bar__item {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--gray-400);
  white-space: nowrap;
}

/* --- Services Section --- */
.services { background: var(--bg-secondary); }

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header p {
  max-width: 560px;
  margin: var(--space-md) auto 0;
  font-size: 1.0625rem;
}

.section-label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blue-primary);
  margin-bottom: var(--space-sm);
}

.services__grid {
  display: grid;
  gap: var(--space-lg);
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--duration) var(--ease);
  border: 1px solid var(--gray-100);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-primary);
}

.service-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--bg-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}

.service-card h3 {
  margin-bottom: var(--space-sm);
}

.service-card p {
  font-size: 0.9375rem;
  margin-bottom: var(--space-lg);
}

.service-card__link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--blue-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.service-card__link::after {
  content: '\2192';
  transition: transform var(--duration) var(--ease);
}

.service-card:hover .service-card__link::after {
  transform: translateX(4px);
}

/* --- Why Posh Wash --- */
.why-us { background: var(--white); }

.why-us__grid {
  display: grid;
  gap: var(--space-xl);
}

.why-us__item {
  display: flex;
  gap: var(--space-lg);
}

.why-us__number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--bg-blue);
  color: var(--blue-primary);
  font-weight: 800;
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.why-us__item h3 { margin-bottom: var(--space-xs); }
.why-us__item p { font-size: 0.9375rem; }

/* --- Trusted Section (Supercar credibility) --- */
.trusted {
  background: var(--navy);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.trusted::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 132, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.trusted h2 { color: var(--white); }
.trusted p { color: var(--gray-200); }

.trusted__content {
  max-width: 600px;
}

.trusted__vehicles {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

.trusted__vehicle {
  padding: 0.5rem 1.125rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-200);
}

.trusted__bottom {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 1.0625rem;
  color: var(--white);
  font-weight: 500;
}

/* --- How It Works --- */
.how-it-works { background: var(--bg-secondary); }

.steps {
  display: grid;
  gap: var(--space-xl);
  counter-reset: step;
}

.step {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.step__number {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-secondary));
  color: var(--white);
  font-weight: 800;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-blue);
}

.step h3 { margin-bottom: var(--space-xs); }
.step p { font-size: 0.9375rem; }

/* --- Areas / Suburbs --- */
.areas { background: var(--white); }

.areas__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.area-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: all var(--duration) var(--ease);
  border: 1px solid transparent;
}

.area-link::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--blue-primary);
  flex-shrink: 0;
}

.area-link:hover {
  background: var(--bg-blue);
  border-color: var(--blue-primary);
  color: var(--blue-primary);
}

.areas__also {
  margin-top: var(--space-xl);
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
}

.areas__also h4 {
  margin-bottom: var(--space-sm);
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.areas__also p {
  font-size: 0.875rem;
  line-height: 1.8;
}

/* --- Tropical / Climate --- */
.tropical {
  background: linear-gradient(135deg, var(--blue-primary) 0%, var(--blue-deeper) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.tropical::before {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.tropical h2 { color: var(--white); }

.tropical__subtitle {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.0625rem;
  max-width: 560px;
  margin-bottom: var(--space-2xl);
}

.tropical__grid {
  display: grid;
  gap: var(--space-lg);
}

.tropical__item {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  backdrop-filter: blur(10px);
}

.tropical__item h3 {
  color: var(--white);
  margin-bottom: var(--space-sm);
  font-size: 1.125rem;
}

.tropical__item p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9375rem;
}

/* --- FAQ --- */
.faq { background: var(--bg-secondary); }

.faq__list {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
}

.faq__item {
  background: var(--white);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  border: 1px solid var(--gray-100);
  overflow: hidden;
  transition: border-color var(--duration) var(--ease);
}

.faq__item.active { border-color: var(--blue-primary); }

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-lg) var(--space-xl);
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  gap: var(--space-md);
}

.faq__icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--bg-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  color: var(--blue-primary);
  transition: transform var(--duration) var(--ease);
}

.faq__item.active .faq__icon { transform: rotate(45deg); }

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
}

.faq__answer-inner {
  padding: 0 var(--space-xl) var(--space-xl);
}

.faq__answer-inner p { font-size: 0.9375rem; }

/* --- CTA Section --- */
.cta-section {
  background: var(--white);
  text-align: center;
}

.cta-section__inner {
  background: linear-gradient(135deg, var(--blue-primary) 0%, var(--blue-deeper) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl) var(--space-xl);
  position: relative;
  overflow: hidden;
}

.cta-section__inner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.cta-section h2 {
  color: var(--white);
  margin-bottom: var(--space-md);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.0625rem;
  max-width: 480px;
  margin: 0 auto var(--space-xl);
}

.cta-section__actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* --- Footer --- */
.footer {
  background: var(--navy);
  color: var(--gray-200);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__grid {
  display: grid;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer__brand {
  max-width: 300px;
}

.footer__brand-name {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: var(--space-md);
}

.footer__brand p {
  font-size: 0.875rem;
  color: var(--gray-400);
  line-height: 1.7;
}

.footer__heading {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--white);
  margin-bottom: var(--space-lg);
}

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

.footer__links a {
  font-size: 0.9375rem;
  color: var(--gray-400);
  transition: color var(--duration) var(--ease);
}

.footer__links a:hover { color: var(--white); }

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.9375rem;
  color: var(--gray-400);
  margin-bottom: var(--space-md);
}

.footer__contact-item strong {
  color: var(--gray-200);
  font-weight: 600;
}

.footer__bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.8125rem;
  color: var(--gray-400);
}

/* ============================================
   RESPONSIVE — Tablet (768px+)
   ============================================ */
@media (min-width: 768px) {
  section { padding: var(--space-4xl) 0; }

  .hero { padding: calc(72px + var(--space-4xl)) 0 var(--space-4xl); }
  .hero__inner { grid-template-columns: 1fr 1fr; gap: var(--space-3xl); }
  .hero__stats { grid-template-columns: repeat(3, 1fr); }

  .services__grid { grid-template-columns: repeat(2, 1fr); }

  .why-us__grid { grid-template-columns: repeat(2, 1fr); }

  .steps { grid-template-columns: repeat(3, 1fr); }
  .step { flex-direction: column; text-align: center; align-items: center; }

  .areas__grid { grid-template-columns: repeat(3, 1fr); }

  .tropical__grid { grid-template-columns: repeat(2, 1fr); }

  .footer__grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================
   RESPONSIVE — Desktop (1024px+)
   ============================================ */
@media (min-width: 1024px) {
  .header__nav { display: flex; }
  .header__cta { display: inline-flex; }
  .header__menu-btn { display: none; }

  .services__grid { grid-template-columns: repeat(3, 1fr); }

  .areas__grid { grid-template-columns: repeat(3, 1fr); }

  .tropical__grid { grid-template-columns: repeat(3, 1fr); }

  .footer__grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; }

  .cta-section__inner { padding: var(--space-4xl) var(--space-3xl); }
}

/* ============================================
   RESPONSIVE — Large Desktop (1200px+)
   ============================================ */
@media (min-width: 1200px) {
  .services__grid { grid-template-columns: repeat(3, 1fr); }
  .areas__grid { grid-template-columns: repeat(5, 1fr); }
}

/* --- Utility --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}