/* ========================================
   DART CHARGE UK — Editorial White Page
   Vanilla HTML / CSS Custom Properties
   ======================================== */

:root {
  /* Color palette — dark road/infrastructure theme */
  --color-bg: #f7f6f3;
  --color-bg-alt: #eef0ec;
  --color-primary: #0f1923;
  --color-primary-dark: #080f15;
  --color-accent: #f0a500;
  --color-accent-light: #f5c842;
  --color-text: #1a1a1a;
  --color-text-light: #4a5568;
  --color-border: #d1ccc3;
  --color-card: #ffffff;
  --color-card-2: #f8f9fa;
  --color-dark-bg: #0f1923;
  --color-dark-card: #1a2530;

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1.25rem;
  --space-lg: 2rem;
  --space-xl: 3.5rem;
  --space-2xl: 5rem;

  /* Border */
  --radius: 8px;
  --radius-lg: 14px;

  /* Transitions */
  --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

/* ========================================
   HEADER
   ======================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(15, 25, 35, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding: 0 var(--space-lg);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.header-brand {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.header-brand-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.01em;
}

.header-brand-tagline {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  font-weight: 600;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.header-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  transition: color var(--transition);
}

.header-nav a:hover { color: var(--color-accent); }

.header-cta {
  background: var(--color-accent);
  color: var(--color-primary-dark) !important;
  padding: 0.5rem 1.25rem;
  border-radius: 6px;
  font-weight: 700 !important;
  font-size: 0.8rem !important;
  transition: background var(--transition) !important;
}

.header-cta:hover { background: var(--color-accent-light) !important; }

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}

.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all 0.3s;
}

/* Mobile menu */
.mobile-nav {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  background: var(--color-primary-dark);
  padding: var(--space-md) var(--space-lg) var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.08);
  z-index: 99;
}

.mobile-nav.open { display: block; }

.mobile-nav a {
  display: block;
  padding: 0.75rem 0;
  color: rgba(255,255,255,0.8);
  font-size: 0.95rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: color var(--transition);
}

.mobile-nav a:hover { color: var(--color-accent); }

/* ========================================
   HERO
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero.jpg');
  background-size: cover;
  background-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(8, 15, 21, 0.88) 0%,
    rgba(15, 25, 35, 0.65) 50%,
    rgba(8, 15, 21, 0.82) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px var(--space-lg) var(--space-xl);
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(240, 165, 0, 0.15);
  border: 1px solid rgba(240, 165, 0, 0.3);
  border-radius: 50px;
  padding: 0.35rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
}

.hero-heading {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  margin-bottom: var(--space-md);
  max-width: 700px;
}

.hero-heading .accent { color: var(--color-accent); }

.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.72);
  max-width: 520px;
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
}

.hero-meta-item svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-accent);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.hero-cta:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
}

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.4);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ========================================
   STATS BAR
   ======================================== */
.stats-bar {
  background: var(--color-primary);
  padding: var(--space-xl) var(--space-lg);
}

.stats-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.55);
}

/* ========================================
   INTRO SECTION
   ======================================== */
.intro-section {
  padding: var(--space-2xl) var(--space-lg);
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.intro-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.intro-heading {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.intro-text {
  font-size: 0.97rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
  line-height: 1.75;
}

.intro-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.875rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.intro-btn:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.intro-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.12);
  transition: transform 0.4s ease;
}

.intro-image:hover { transform: scale(1.02); }

.intro-image img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

/* ========================================
   ARTICLE GRID
   ======================================== */
.articles-section {
  padding: var(--space-2xl) var(--space-lg);
  background: var(--color-bg-alt);
}

.articles-section-header {
  max-width: 1200px;
  margin: 0 auto var(--space-xl);
  text-align: center;
}

.section-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.article-card {
  max-width: 1200px;
  margin: 0 auto var(--space-xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--color-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.07);
}

.article-card.reverse { direction: rtl; }
.article-card.reverse > * { direction: ltr; }

.article-image {
  position: relative;
  overflow: hidden;
}

.article-image img {
  width: 100%;
  height: 100%;
  min-height: 340px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.article-card:hover .article-image img { transform: scale(1.04); }

.article-category {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
}

.article-body {
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.article-meta {
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.article-title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.25;
  margin-bottom: var(--space-sm);
}

.article-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.article-expand {
  display: none;
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 1.75;
  margin-bottom: var(--space-md);
}

.article-expand.open { display: block; }

.article-read-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.6rem 0;
  border-bottom: 2px solid var(--color-accent);
  transition: all var(--transition);
  width: fit-content;
}

.article-read-btn:hover { color: var(--color-primary); border-color: var(--color-primary); }

/* ========================================
   TIPS SECTION
   ======================================== */
.tips-section {
  padding: var(--space-2xl) var(--space-lg);
  background: var(--color-primary);
}

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

.tips-header .section-label { color: var(--color-accent); }
.tips-header .section-heading { color: #fff; }

.tips-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.tip-card {
  background: var(--color-dark-card);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid rgba(255,255,255,0.07);
  transition: transform 0.3s ease;
}

.tip-card:hover { transform: translateY(-4px); }

.tip-icon {
  width: 44px;
  height: 44px;
  background: rgba(240, 165, 0, 0.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.tip-icon svg { width: 22px; height: 22px; stroke: var(--color-accent); fill: none; }

.tip-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.tip-desc {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.65;
}

/* ========================================
   SEASONAL GUIDE
   ======================================== */
.seasonal-section {
  padding: var(--space-2xl) var(--space-lg);
  background: var(--color-bg-alt);
}

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

.seasonal-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.season-card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.07);
  transition: transform 0.3s ease;
}

.season-card:hover { transform: translateY(-4px); }

.season-header {
  padding: var(--space-md) var(--space-md) 0;
}

.season-icon { margin-bottom: 8px; }
.season-icon svg { width: 28px; height: 28px; }

.season-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.season-period {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-light);
}

.season-body {
  padding: var(--space-md);
}

.season-tips {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.season-tips li {
  font-size: 0.82rem;
  color: var(--color-text-light);
  padding-left: 1.2rem;
  position: relative;
  line-height: 1.5;
}

.season-tips li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ========================================
   NEWSLETTER
   ======================================== */
.newsletter-section {
  padding: var(--space-2xl) var(--space-lg);
  background: var(--color-primary-dark);
}

.newsletter-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.newsletter-left h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.newsletter-left p {
  color: rgba(255,255,255,0.6);
  font-size: 0.95rem;
  line-height: 1.7;
}

.newsletter-perks {
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.newsletter-perks li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.7);
}

.newsletter-perks li::before {
  content: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>");
  background: #16a34a;
  border-radius: 50%;
  width: 18px;
  height: 18px;
  padding: 2px;
  flex-shrink: 0;
}

.newsletter-form {
  background: var(--color-dark-card);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  border: 1px solid rgba(255,255,255,0.08);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: var(--space-sm);
}

.form-field label {
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.form-field input {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  color: #fff;
  font-family: inherit;
  font-size: 0.9rem;
  transition: border-color var(--transition);
}

.form-field input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-field input::placeholder { color: rgba(255,255,255,0.3); }

.consent-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: var(--space-md);
}

.consent-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent);
  margin-top: 2px;
  flex-shrink: 0;
}

.consent-row label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.5;
}

.form-submit {
  width: 100%;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.9rem;
  border-radius: var(--radius);
  transition: all var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.form-submit:hover { background: var(--color-accent-light); }

.form-success {
  display: none;
  text-align: center;
  padding: var(--space-lg);
}

.form-success.show { display: block; }

.form-success h3 {
  font-family: var(--font-display);
  color: #fff;
  font-size: 1.3rem;
  margin-bottom: 8px;
}

.form-success p {
  color: rgba(255,255,255,0.6);
  font-size: 0.875rem;
}

/* ========================================
   FAQ
   ======================================== */
.faq-section {
  padding: var(--space-2xl) var(--space-lg);
  background: var(--color-bg);
}

.faq-inner {
  max-width: 780px;
  margin: 0 auto;
}

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

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) 0;
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  gap: var(--space-md);
  transition: color var(--transition);
}

.faq-question:hover { color: var(--color-accent); }

.faq-question svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-accent);
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.faq-item.open .faq-question svg { transform: rotate(180deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-item.open .faq-answer { max-height: 400px; }

.faq-answer p {
  padding: 0 0 var(--space-md);
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.75;
}

/* ========================================
   FOOTER
   ======================================== */
.site-footer {
  background: var(--color-primary-dark);
  padding: var(--space-2xl) var(--space-lg) var(--space-lg);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand-name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.footer-brand-desc {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.65;
  margin-bottom: 0;
}

.footer-col h4 {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.footer-col ul { display: flex; flex-direction: column; gap: 10px; }

.footer-col ul a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}

.footer-col ul a:hover { color: var(--color-accent); }

.footer-disclaimer {
  max-width: 1200px;
  margin: var(--space-lg) auto 0;
  text-align: center;
}

.footer-disclaimer p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
  line-height: 1.65;
}

.footer-copy {
  max-width: 1200px;
  margin: var(--space-md) auto 0;
  text-align: center;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.25);
}

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

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
  .seasonal-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .header-nav { display: none; }
  .mobile-menu-btn { display: flex; }

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

  .intro-section { grid-template-columns: 1fr; }
  .intro-image { order: -1; }

  .article-card { grid-template-columns: 1fr; }
  .article-card.reverse { direction: ltr; }
  .article-image img { min-height: 240px; }

  .tips-grid { grid-template-columns: 1fr; }

  .seasonal-grid { grid-template-columns: 1fr; }

  .newsletter-inner { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr; }

  .hero-content { padding-top: 100px; }
}