/* ==========================================================================
   Enson Cleaning Services — styles.css
   Design system: CSS variables, mobile-first, light mode (+ optional dark)
   Typography inspired by Stripe / Vercel / Linear (system font stack)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design tokens (CSS variables)
   -------------------------------------------------------------------------- */
:root {
  /* Brand colours */
  --color-primary: #0e7ea8;          /* deep aqua blue */
  --color-primary-dark: #0a5f80;
  --color-primary-light: #e6f4f9;
  --color-accent: #16b8a6;           /* fresh teal */
  --color-accent-dark: #0e8d80;

  /* Gradients */
  --gradient-brand: linear-gradient(135deg, #0e7ea8 0%, #16b8a6 100%);
  --gradient-soft: linear-gradient(180deg, #f6fbfd 0%, #eef7fa 100%);
  --gradient-hero-overlay: linear-gradient(100deg, rgba(8, 47, 64, 0.82) 0%, rgba(8, 47, 64, 0.55) 55%, rgba(8, 47, 64, 0.25) 100%);

  /* Neutrals */
  --color-bg: #ffffff;
  --color-bg-alt: #f6f9fb;
  --color-surface: #ffffff;
  --color-border: #e3eaef;
  --color-text: #1a2b33;
  --color-text-muted: #5b7280;
  --color-text-invert: #ffffff;
  --color-footer-bg: #0d2530;
  --color-footer-text: #b9cbd4;

  /* Feedback */
  --color-success: #15803d;
  --color-success-bg: #ecfdf3;
  --color-error: #b91c1c;
  --color-error-bg: #fef2f2;

  /* Typography */
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.375rem;
  --text-2xl: 1.75rem;
  --text-3xl: 2.25rem;
  --text-4xl: 3rem;
  --leading-tight: 1.15;
  --leading-normal: 1.65;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(13, 37, 48, 0.06);
  --shadow-md: 0 4px 16px rgba(13, 37, 48, 0.08);
  --shadow-lg: 0 12px 40px rgba(13, 37, 48, 0.14);

  /* Layout */
  --container-max: 1140px;
  --header-height: 72px;

  /* Motion */
  --transition-fast: 160ms ease;
  --transition-base: 280ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* Optional dark mode — toggled by script.js via data-theme on <html> */
:root[data-theme="dark"] {
  --color-bg: #0d1a21;
  --color-bg-alt: #12232c;
  --color-surface: #14262f;
  --color-border: #24404c;
  --color-text: #e7f0f4;
  --color-text-muted: #93aab5;
  --color-primary-light: #123240;
  --gradient-soft: linear-gradient(180deg, #10202a 0%, #0d1a21 100%);
  --color-footer-bg: #091820;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.55);
}

/* --------------------------------------------------------------------------
   2. Base / reset
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

h1, h2, h3, h4 {
  line-height: var(--leading-tight);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Layout helpers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.section {
  padding-block: var(--space-8);
}

.section--alt {
  background: var(--color-bg-alt);
}

.section--gradient {
  background: var(--gradient-soft);
}

.section__header {
  max-width: 640px;
  margin: 0 auto var(--space-7);
  text-align: center;
}

.section__eyebrow {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-dark);
  margin-bottom: var(--space-3);
}

.section__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-3);
}

.section__lede {
  color: var(--color-text-muted);
  font-size: var(--text-lg);
}

/* --------------------------------------------------------------------------
   3. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.8rem 1.6rem;
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    background-color var(--transition-fast), color var(--transition-fast);
}

.btn--primary {
  background: var(--gradient-brand);
  color: var(--color-text-invert);
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-text-invert);
}

.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: currentColor;
}

.btn--ghost:hover {
  background: var(--color-primary-light);
}

.btn--light {
  background: var(--color-text-invert);
  color: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
}

.btn--light:hover {
  transform: translateY(-2px);
  color: var(--color-primary-dark);
}

/* --------------------------------------------------------------------------
   4. Header / navigation (sticky)
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.site-header__logo img {
  height: 44px;
  width: auto;
}

/* The standard logo has dark text — swap to the reversed (white) version
   in dark mode so it stays legible */
:root[data-theme="dark"] .site-header__logo img {
  content: url("images/Enson-Logo-2017---rev.png");
}

.site-nav {
  display: none; /* mobile-first: hidden until toggled */
}

.site-nav.is-open {
  display: block;
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  padding: var(--space-4) var(--space-5) var(--space-5);
}

.site-nav__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-nav__link {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-weight: 500;
  color: var(--color-text);
}

.site-nav__link:hover,
.site-nav__link[aria-current="page"] {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.site-header__cta {
  display: none;
}

/* Theme toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--color-text);
  transition: background-color var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--color-bg-alt);
}

/* Hamburger */
.nav-toggle {
  background: none;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-text);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.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);
}

/* --------------------------------------------------------------------------
   5. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 520px;
  padding-block: var(--space-9);
  background-size: cover;
  background-position: center;
  color: var(--color-text-invert);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-hero-overlay);
}

.hero__content {
  position: relative;
  max-width: 640px;
}

.hero__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-4);
}

.hero__subtitle {
  font-size: var(--text-lg);
  opacity: 0.92;
  margin-bottom: var(--space-6);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Page-specific hero backgrounds (mapped from the original site) */
.hero--home         { background-image: url("images/iStock-479426370_2800.jpg"); }
.hero--cleaning     { background-image: url("images/iStock-804037390_2800.jpg"); }
.hero--gardening    { background-image: url("images/iStock-824030282_2800.jpg"); }
.hero--windows      { background-image: url("images/iStock-155379613_2400.jpg"); }
.hero--handyman     { background-image: url("images/iStock-115579328_2400.jpg"); }
.hero--housekeeping { background-image: url("images/iStock-637119558_2800.jpg"); }
.hero--services     { background-image: url("images/iStock-697888448_2800.jpg"); }
.hero--about        { background-image: url("images/iStock-875247422_2800.jpg"); }
.hero--quote        { background-image: url("images/iStock-539282637_2800.jpg"); }
.hero--connect      { background-image: url("images/Blurred-Lounge-Setting.jpg"); }
.hero--faq          { background-image: url("images/iStock-645057532_2800.jpg"); }

.hero--compact {
  min-height: 340px;
  padding-block: var(--space-8);
}

/* Trust badge strip under hero */
.trust-strip {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-5);
}

.trust-strip__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3) var(--space-6);
}

.trust-strip__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
}

.trust-strip__item img {
  width: 20px;
  height: 20px;
}

/* --------------------------------------------------------------------------
   6. Cards & grids
   -------------------------------------------------------------------------- */
.grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr; /* mobile-first */
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card__icon {
  width: 56px;
  height: 56px;
  margin-bottom: var(--space-4);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
}

.card__title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-2);
}

.card__text {
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.card__link {
  font-weight: 600;
}

/* Split (text + image) sections */
.split {
  display: grid;
  gap: var(--space-6);
  align-items: center;
  grid-template-columns: 1fr;
}

.split__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.split__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.split__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}

.split__text {
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

/* Checklist */
.checklist {
  list-style: none;
  display: grid;
  gap: var(--space-3);
  margin-block: var(--space-4);
}

.checklist li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 500;
}

.checklist img {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   7. Testimonials
   -------------------------------------------------------------------------- */
.testimonial {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.testimonial__quote {
  font-size: var(--text-lg);
  color: var(--color-text);
  font-style: italic;
}

.testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--gradient-brand);
  color: var(--color-text-invert);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.testimonial__name {
  font-weight: 600;
}

.testimonial__meta {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.stars {
  height: 18px;
  width: auto;
}

/* --------------------------------------------------------------------------
   8. FAQ accordion
   -------------------------------------------------------------------------- */
.accordion {
  max-width: 760px;
  margin-inline: auto;
  display: grid;
  gap: var(--space-3);
}

.accordion__group-title {
  font-size: var(--text-xl);
  margin: var(--space-6) 0 var(--space-2);
}

.accordion__item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
}

.accordion__chevron {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  transition: transform var(--transition-base);
  color: var(--color-primary);
}

.accordion__item.is-open .accordion__chevron {
  transform: rotate(180deg);
}

.accordion__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.accordion__content {
  padding: 0 var(--space-5) var(--space-5);
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   9. Forms
   -------------------------------------------------------------------------- */
.form-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-6);
  max-width: 720px;
  margin-inline: auto;
}

.form-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-field--full {
  grid-column: 1 / -1;
}

.form-field label {
  font-size: var(--text-sm);
  font-weight: 600;
}

.form-field input,
.form-field select,
.form-field textarea {
  font: inherit;
  color: var(--color-text);
  background: var(--color-bg);
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 20%, transparent);
}

.form-field textarea {
  min-height: 130px;
  resize: vertical;
}

.form-status {
  display: none;
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.form-status.is-success {
  display: block;
  background: var(--color-success-bg);
  color: var(--color-success);
}

.form-status.is-error {
  display: block;
  background: var(--color-error-bg);
  color: var(--color-error);
}

/* --------------------------------------------------------------------------
   10. CTA band
   -------------------------------------------------------------------------- */
.cta-band {
  background: var(--gradient-brand);
  color: var(--color-text-invert);
  border-radius: var(--radius-lg);
  padding: var(--space-7) var(--space-6);
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.cta-band__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-3);
}

.cta-band__text {
  opacity: 0.92;
  margin-bottom: var(--space-5);
  max-width: 560px;
  margin-inline: auto;
}

/* --------------------------------------------------------------------------
   11. Contact details block
   -------------------------------------------------------------------------- */
.contact-details {
  display: grid;
  gap: var(--space-4);
}

.contact-details__item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}

.contact-details__label {
  font-weight: 600;
  min-width: 84px;
}

/* Suburbs pill list (About page) */
.pill-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.pill-list li {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
}

:root[data-theme="dark"] .pill-list li {
  color: #9fd4e8;
}

/* --------------------------------------------------------------------------
   12. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding-block: var(--space-8) var(--space-6);
  margin-top: var(--space-8);
}

.site-footer__grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
  margin-bottom: var(--space-7);
}

.site-footer__logo img {
  height: 52px;
  width: auto;
  margin-bottom: var(--space-3);
}

.site-footer__tagline {
  font-style: italic;
  opacity: 0.85;
}

.site-footer h4 {
  color: var(--color-text-invert);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

.site-footer ul {
  list-style: none;
  display: grid;
  gap: var(--space-2);
}

.site-footer a {
  color: var(--color-footer-text);
}

.site-footer a:hover {
  color: var(--color-text-invert);
}

.site-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: var(--space-5);
  font-size: var(--text-sm);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
}

/* --------------------------------------------------------------------------
   13. Scroll-triggered animations (paired with IntersectionObserver in JS)
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 600ms cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Stagger children inside a revealed group */
.reveal-group > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 600ms cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal-group.is-visible > * {
  opacity: 1;
  transform: none;
}

.reveal-group.is-visible > *:nth-child(2) { transition-delay: 90ms; }
.reveal-group.is-visible > *:nth-child(3) { transition-delay: 180ms; }
.reveal-group.is-visible > *:nth-child(4) { transition-delay: 270ms; }
.reveal-group.is-visible > *:nth-child(5) { transition-delay: 360ms; }
.reveal-group.is-visible > *:nth-child(6) { transition-delay: 450ms; }

/* Respect users who prefer less motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal,
  .reveal-group > * {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* --------------------------------------------------------------------------
   14. Responsive breakpoints (mobile-first)
   -------------------------------------------------------------------------- */
@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: repeat(2, 1fr); }
  .hero__title { font-size: var(--text-4xl); }
}

@media (min-width: 900px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr 1fr; }
  .split--reverse .split__image { order: -1; }
  .section { padding-block: var(--space-9); }
  .section__title { font-size: var(--text-3xl); }

  /* Desktop nav */
  .nav-toggle { display: none; }
  .site-nav { display: block; }
  .site-nav__list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-1);
  }
  .site-nav__link { padding: var(--space-2) var(--space-3); }
  .site-header__cta { display: inline-flex; }

  .site-footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
  }
}
