/* ============================================
   CommunitEV Charging - Design System
   ============================================ */

/* Import Inter font from Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
  /* Colour Palette */
  --color-primary-blue: #0077B6;
  --color-primary-blue-light: #00A8E8;
  --color-primary-green: #00B377;
  --color-primary-green-light: #00D084;
  --color-dark-navy: #0A1929;
  --color-charcoal: #1A1A1A;
  --color-white: #FFFFFF;
  --color-grey-light: #F5F5F5;
  --color-grey-medium: #E0E0E0;
  --color-grey-dark: #666666;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  /* Font Sizes */
  --font-size-xs: 0.75rem;
  /* 12px */
  --font-size-sm: 0.875rem;
  /* 14px */
  --font-size-base: 1rem;
  /* 16px */
  --font-size-lg: 1.125rem;
  /* 18px */
  --font-size-xl: 1.25rem;
  /* 20px */
  --font-size-2xl: 1.5rem;
  /* 24px */
  --font-size-3xl: 1.875rem;
  /* 30px */
  --font-size-4xl: 2.25rem;
  /* 36px */
  --font-size-5xl: 3rem;
  /* 48px */
  --font-size-6xl: 3.75rem;
  /* 60px */

  /* Spacing Scale */
  --spacing-xs: 0.5rem;
  /* 8px */
  --spacing-sm: 1rem;
  /* 16px */
  --spacing-md: 1.5rem;
  /* 24px */
  --spacing-lg: 2rem;
  /* 32px */
  --spacing-xl: 3rem;
  /* 48px */
  --spacing-2xl: 4rem;
  /* 64px */
  --spacing-3xl: 6rem;
  /* 96px */

  /* Container */
  --container-max-width: 1280px;
  --container-padding: var(--spacing-md);

  /* Border Radius */
  --radius-sm: 0.375rem;
  /* 6px */
  --radius-md: 0.5rem;
  /* 8px */
  --radius-lg: 0.75rem;
  /* 12px */
  --radius-xl: 1rem;
  /* 16px */

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;

  /* Z-index */
  --z-header: 1000;
  --z-mobile-menu: 1100;
  --z-overlay: 900;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: 1.6;
  color: var(--color-charcoal);
  background-color: var(--color-white);
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Focus States for Accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid var(--color-primary-blue-light);
  outline-offset: 2px;
}

/* ============================================
   Typography
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-dark-navy);
}

h1 {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-extrabold);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--spacing-sm);
}

/* Responsive Typography */
@media (max-width: 768px) {
  h1 {
    font-size: var(--font-size-4xl);
  }

  h2 {
    font-size: var(--font-size-3xl);
  }

  h3 {
    font-size: var(--font-size-2xl);
  }
}

/* ============================================
   Layout Components
   ============================================ */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

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

.section--dark {
  background-color: var(--color-dark-navy);
  color: var(--color-white);
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4,
.section--dark h5,
.section--dark h6 {
  color: var(--color-white);
}

/* Ensure card titles in dark sections remain dark */
.section--dark .card__title {
  color: var(--color-dark-navy);
}

.section--grey {
  background-color: var(--color-grey-light);
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
  position: sticky;
  top: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: var(--z-header);
  transition: background-color var(--transition-base);
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--container-padding);
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.header__logo {
  height: 40px;
  width: auto;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.header__nav-list {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  margin: 0;
  padding: 0;
}

.header__nav-link {
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  color: var(--color-dark-navy);
  position: relative;
  padding: var(--spacing-xs) 0;
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary-blue);
  transition: width var(--transition-base);
}

.header__nav-link:hover::after,
.header__nav-link.active::after {
  width: 100%;
}

/* Mobile Menu Toggle */
.header__menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-xs);
  z-index: calc(var(--z-mobile-menu) + 10);
}

.header__menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--color-dark-navy);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.header__menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

.header__menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.header__menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .header__menu-toggle {
    display: flex;
  }

  .header__nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: var(--color-white);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    transition: right var(--transition-base);
    z-index: var(--z-mobile-menu);
  }

  .header__nav.active {
    right: 0;
  }

  .header__nav-list {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
  }

  .header__nav-link {
    font-size: var(--font-size-xl);
  }
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-white);
  overflow: hidden;
}

.hero--full {
  min-height: 85vh;
}

.hero__background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(10, 25, 41, 0.85) 0%, rgba(0, 119, 182, 0.75) 100%);
  z-index: 2;
}

.hero__content {
  position: relative;
  z-index: 3;
  max-width: 900px;
  padding: var(--spacing-xl) var(--container-padding);
}

.hero__heading {
  font-size: var(--font-size-6xl);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--spacing-md);
  color: var(--color-white);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero__subheading {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-regular);
  margin-bottom: var(--spacing-xl);
  color: var(--color-white);
  opacity: 0.95;
}

.hero__cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .hero {
    min-height: 500px;
  }

  .hero__heading {
    font-size: var(--font-size-4xl);
  }

  .hero__subheading {
    font-size: var(--font-size-lg);
  }

  .hero__cta {
    flex-direction: column;
    align-items: center;
  }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-align: center;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
}

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

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

.btn--secondary {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn--secondary:hover {
  background-color: var(--color-white);
  color: var(--color-primary-blue);
}

.btn--large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

/* ============================================
   Cards
   ============================================ */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

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

.card__icon {
  width: 60px;
  height: 60px;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary-blue);
}

.card__title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
  color: var(--color-dark-navy);
}

.card__description {
  font-size: var(--font-size-base);
  color: var(--color-grey-dark);
  margin-bottom: var(--spacing-md);
}

.card__link {
  color: var(--color-primary-blue);
  font-weight: var(--font-weight-semibold);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.card__link:hover {
  color: var(--color-primary-blue-light);
}

/* Card Header with Icon */
.card__header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.card__header .card__icon {
  margin-bottom: 0;
  flex-shrink: 0;
}

.card__header .card__title {
  margin-bottom: 0;
}

/* ============================================
   Grid Layouts
   ============================================ */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

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

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

.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Steps/Process Section
   ============================================ */
.steps {
  display: flex;
  gap: var(--spacing-xl);
  align-items: flex-start;
}

.step {
  flex: 1;
  text-align: center;
}

.step__number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary-blue), var(--color-primary-blue-light));
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin: 0 auto var(--spacing-md);
}

.step__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
  color: var(--color-dark-navy);
}

.step__description {
  font-size: var(--font-size-base);
  color: var(--color-grey-dark);
}

@media (max-width: 768px) {
  .steps {
    flex-direction: column;
  }
}

/* ============================================
   Icon List
   ============================================ */
.icon-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.icon-list__item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.icon-list__icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  color: var(--color-primary-green);
}

.icon-list__content h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xs);
}

.icon-list__content p {
  font-size: var(--font-size-base);
  color: var(--color-grey-dark);
  margin: 0;
}

/* White text in dark sections */
.section--dark .icon-list__content h4,
.section--dark .icon-list__content p {
  color: var(--color-white);
}

/* ============================================
   CTA Strip
   ============================================ */
.cta-strip {
  background: linear-gradient(135deg, var(--color-dark-navy) 0%, var(--color-primary-blue) 100%);
  color: var(--color-white);
  text-align: center;
  padding: var(--spacing-2xl) var(--container-padding);
}

.cta-strip__heading {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--spacing-sm);
  color: var(--color-white);
}

.cta-strip__subheading {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
}

/* ============================================
   Forms
   ============================================ */
.form {
  max-width: 700px;
  margin: 0 auto;
}

.form__group {
  margin-bottom: var(--spacing-md);
}

.form__label {
  display: block;
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-xs);
  color: var(--color-dark-navy);
}

.form__input,
.form__textarea,
.form__select {
  width: 100%;
  padding: var(--spacing-sm);
  font-size: var(--font-size-base);
  font-family: inherit;
  border: 2px solid var(--color-grey-medium);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.form__input:focus,
.form__textarea:focus,
.form__select:focus {
  border-color: var(--color-primary-blue);
  outline: none;
}

.form__textarea {
  min-height: 150px;
  resize: vertical;
}

.form__checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-xs);
}

.form__checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: var(--font-weight-regular);
  cursor: pointer;
}

.form__checkbox {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.form__consent {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin: var(--spacing-md) 0;
}

.form__consent label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
}

.form__submit {
  width: 100%;
}

/* ============================================
   Breadcrumb
   ============================================ */
.breadcrumb {
  padding: var(--spacing-md) 0;
  font-size: var(--font-size-sm);
}

.breadcrumb__list {
  display: flex;
  list-style: none;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.breadcrumb__item:not(:last-child)::after {
  content: '/';
  color: var(--color-grey-dark);
}

.breadcrumb__link {
  color: var(--color-primary-blue);
}

.breadcrumb__link:hover {
  text-decoration: underline;
}

.breadcrumb__current {
  color: var(--color-grey-dark);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background-color: var(--color-dark-navy);
  color: var(--color-white);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

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

.footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer__section h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
  color: var(--color-white);
}

.footer__section p,
.footer__section a {
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-xs);
  color: rgba(255, 255, 255, 0.85);
}

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

.footer__links {
  list-style: none;
}

.footer__links li {
  margin-bottom: var(--spacing-xs);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center {
  text-align: center;
}

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

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

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mt-xl {
  margin-top: var(--spacing-xl);
}

.hidden {
  display: none;
}

@media (max-width: 768px) {
  .hidden-mobile {
    display: none;
  }
}

@media (min-width: 769px) {
  .hidden-desktop {
    display: none;
  }
}