/*
 * Van Life UK — Apple-Quality Design System
 * Inspired by apple.com: generous whitespace, refined typography, subtle motion,
 * glass-blur nav, cinematic hero, refined cards.
 */

/* ═══════════════════ TOKENS ═══════════════════ */
:root {
  --nav-height: 48px;

  /* palette — Apple-esque dark / light */
  --black: #1d1d1f;
  --gray-900: #1d1d1f;
  --gray-700: #424245;
  --gray-600: #6e6e73;
  --gray-500: #86868b;
  --gray-400: #d2d2d7;
  --gray-200: #f5f5f7;
  --gray-100: #fbfbfd;
  --white: #ffffff;

  /* brand accent */
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --accent-light: rgba(0, 113, 227, 0.08);

  /* text */
  --text-primary: var(--black);
  --text-secondary: var(--gray-600);
  --text-tertiary: var(--gray-500);

  /* surface */
  --surface: var(--white);
  --surface-subtle: var(--gray-200);
  --surface-overlay: rgba(255,255,255,0.82);

  /* typography scale — SF-style */
  --fs-xs: 0.8rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.375rem;
  --fs-xl: 1.75rem;
  --fs-2xl: 2.5rem;
  --fs-3xl: 3.5rem;
  --fs-hero: clamp(2.8rem, 6vw, 4.5rem);

  /* spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* radii */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* transitions */
  --ease-apple: cubic-bezier(0.25, 0.1, 0.25, 1);
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --dur-fast: 180ms;
  --dur-normal: 300ms;
  --dur-slow: 500ms;

  /* widths */
  --max-w: 980px;
  --max-w-narrow: 720px;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--text-primary);
  background: var(--white);
  line-height: 1.5;
  letter-spacing: -0.01em;
}

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

/* ═══════════════════ TYPOGRAPHY ═══════════════════ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }

h1 a, h2 a, h3 a { color: inherit; }
h1 a:hover, h2 a:hover, h3 a:hover { color: var(--accent); }

p { margin-bottom: var(--space-md); line-height: 1.7; color: var(--gray-700); }

small { font-size: var(--fs-xs); color: var(--text-tertiary); }

.text-center { text-align: center; }
.text-small { font-size: var(--fs-sm); }
.text-muted { color: var(--text-tertiary); }
.text-accent { color: var(--accent); }

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

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

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

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

.section--alt {
  background: var(--gray-200);
}

/* ═══════════════════ NAVIGATION — Apple glass ═══════════════════ */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: var(--surface-overlay);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 0.5px solid rgba(0,0,0,0.08);
}

.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand {
  font-size: var(--fs-base);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

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

.nav__link {
  font-size: var(--fs-sm);
  color: var(--gray-700);
  transition: color var(--dur-fast) var(--ease-apple);
  position: relative;
}

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

.nav__link--active {
  color: var(--accent);
  font-weight: 500;
}

/* mobile hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: transform var(--dur-normal) var(--ease-apple);
}

@media (max-width: 768px) {
  .nav__toggle { display: flex; }

  .nav__links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0; right: 0;
    background: var(--surface-overlay);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    border-bottom: 0.5px solid rgba(0,0,0,0.08);
  }

  .nav__links.open { display: flex; }
}

/* ═══════════════════ SEARCH BAR ═══════════════════ */
.search {
  position: relative;
  max-width: 100%;
}

.search__input {
  width: 100%;
  height: 32px;
  padding: 0 var(--space-md) 0 32px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--gray-200);
  font-size: var(--fs-sm);
  color: var(--text-primary);
  transition: background var(--dur-fast) var(--ease-apple),
              box-shadow var(--dur-fast) var(--ease-apple);
}

.search__input::placeholder { color: var(--gray-500); }

.search__input:focus {
  outline: none;
  background: var(--white);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.search__icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-500);
  pointer-events: none;
  font-size: 14px;
}

.search-results {
  position: absolute;
  top: calc(100% + 4px);
  left: 0; right: 0;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 40px rgba(0,0,0,0.12);
  max-height: 400px;
  overflow-y: auto;
  z-index: 100;
  display: none;
}

.search-results.active { display: block; }

.search-results__item {
  display: block;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 0.5px solid var(--gray-200);
  transition: background var(--dur-fast) var(--ease-apple);
}

.search-results__item:last-child { border-bottom: none; }

.search-results__item:hover,
.search-results__item:focus {
  background: var(--gray-200);
  outline: none;
}

.search-results__item h4 {
  font-size: var(--fs-sm);
  margin-bottom: 2px;
}

.search-results__item small {
  font-size: var(--fs-xs);
  color: var(--gray-500);
}

.search-results__empty {
  padding: var(--space-lg);
  text-align: center;
  color: var(--gray-500);
  font-size: var(--fs-sm);
}

/* ═══════════════════ HERO — cinematic ═══════════════════ */
.hero {
  padding: var(--space-3xl) 0;
  text-align: center;
  background: linear-gradient(180deg, var(--gray-100) 0%, var(--white) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(0,113,227,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero__eyebrow {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
}

.hero h1 {
  font-size: var(--fs-hero);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: var(--space-lg);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero p {
  font-size: var(--fs-lg);
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto var(--space-xl);
  line-height: 1.5;
}

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

/* ═══════════════════ BUTTONS ═══════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 var(--space-lg);
  font-size: var(--fs-sm);
  font-weight: 500;
  border-radius: 980px;
  transition: all var(--dur-fast) var(--ease-apple);
  white-space: nowrap;
}

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

.btn--primary:hover {
  background: var(--accent-hover);
  transform: scale(1.03);
}

.btn--secondary {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}

.btn--secondary:hover {
  background: var(--accent-light);
  transform: scale(1.03);
}

.btn--link {
  color: var(--accent);
  padding: 0;
  height: auto;
}

.btn--link::after {
  content: ' ›';
  font-size: 1.1em;
  transition: transform var(--dur-fast) var(--ease-apple);
}

.btn--link:hover::after {
  transform: translateX(3px);
}

.btn--large {
  height: 48px;
  padding: 0 var(--space-2xl);
  font-size: var(--fs-base);
}

/* ═══════════════════ SECTION HEADERS ═══════════════════ */
.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-header h2 {
  font-size: var(--fs-2xl);
  margin-bottom: var(--space-sm);
}

.section-header p {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

/* ═══════════════════ CATEGORY CARDS — Apple-style grid ═══════════════════ */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.category-card {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  border: 0.5px solid rgba(0,0,0,0.06);
  transition: all var(--dur-normal) var(--ease-apple);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
  border-color: transparent;
}

.category-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: var(--space-md);
  font-weight: 700;
}

.category-card__icon--starter { background: #e8f5e9; color: #2e7d32; }
.category-card__icon--power   { background: #fff3e0; color: #e65100; }
.category-card__icon--camping  { background: #e3f2fd; color: #1565c0; }
.category-card__icon--conversions { background: #f3e5f5; color: #7b1fa2; }
.category-card__icon--gear     { background: #fce4ec; color: #c62828; }
.category-card__icon--insurance { background: #e0f7fa; color: #00838f; }
.category-card__icon--seasonal { background: #fff8e1; color: #f57f17; }

.category-card h3 {
  font-size: var(--fs-md);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.category-card p {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  flex-grow: 1;
}

.category-card__count {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  font-weight: 500;
  padding-top: var(--space-sm);
  border-top: 0.5px solid var(--gray-200);
}

/* ═══════════════════ START HERE ═══════════════════ */
.start-here {
  max-width: var(--max-w-narrow);
  margin: 0 auto;
}

.start-here ol {
  counter-reset: start-counter;
  padding: 0;
}

.start-here li {
  counter-increment: start-counter;
  padding: var(--space-md) 0;
  border-bottom: 0.5px solid var(--gray-200);
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  transition: background var(--dur-fast) var(--ease-apple);
}

.start-here li::before {
  content: counter(start-counter);
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gray-200);
  color: var(--gray-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-sm);
  font-weight: 600;
  transition: all var(--dur-fast) var(--ease-apple);
}

.start-here li:hover::before {
  background: var(--accent);
  color: var(--white);
}

.start-here li a {
  font-weight: 500;
  color: var(--text-primary);
  transition: color var(--dur-fast) var(--ease-apple);
  font-size: var(--fs-md);
  line-height: 1.4;
}

.start-here li a:hover { color: var(--accent); }

.start-here li p {
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ═══════════════════ ARTICLE CARDS ═══════════════════ */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.article-card {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 0.5px solid rgba(0,0,0,0.06);
  overflow: hidden;
  transition: all var(--dur-normal) var(--ease-apple);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.article-card__body {
  padding: var(--space-md);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.article-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.article-card__tag {
  font-size: var(--fs-xs);
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 980px;
  background: var(--accent-light);
  color: var(--accent);
}

.article-card__title {
  font-size: var(--fs-md);
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: var(--space-sm);
}

.article-card__title a {
  color: var(--text-primary);
  transition: color var(--dur-fast) var(--ease-apple);
}

.article-card__title a:hover { color: var(--accent); }

.article-card__excerpt {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.55;
  flex-grow: 1;
}

.article-card__footer {
  padding: var(--space-sm) var(--space-md);
  border-top: 0.5px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.article-card__read {
  font-size: var(--fs-sm);
  color: var(--accent);
  font-weight: 500;
}

/* ═══════════════════ CATEGORY PAGE / ARTICLE LIST ═══════════════════ */
.article-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.article-list__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  border-bottom: 0.5px solid var(--gray-200);
  transition: background var(--dur-fast) var(--ease-apple);
}

.article-list__item:first-child { padding-top: 0; }
.article-list__item:last-child { border-bottom: none; }

.article-list__number {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--gray-400);
  border: 1px solid var(--gray-400);
  border-radius: 50%;
  margin-top: 2px;
}

.article-list__content { flex-grow: 1; }

.article-list__title {
  font-size: var(--fs-md);
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.35;
}

.article-list__title a {
  color: var(--text-primary);
  transition: color var(--dur-fast) var(--ease-apple);
}

.article-list__title a:hover { color: var(--accent); }

.article-list__excerpt {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ═══════════════════ ARTICLE PAGE ═══════════════════ */
.article-page {
  max-width: var(--max-w-narrow);
  margin: 0 auto;
  padding: var(--space-xl) 0;
}

.article-page__header {
  margin-bottom: var(--space-xl);
}

.article-page__header h1 {
  font-size: var(--fs-2xl);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-md);
}

.article-page__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
  align-items: center;
}

.article-page__meta a {
  color: var(--accent);
  font-weight: 500;
}

.article-page__body {
  font-size: var(--fs-base);
  line-height: 1.75;
}

.article-page__body h2 {
  font-size: var(--fs-xl);
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.article-page__body h3 {
  font-size: var(--fs-lg);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.article-page__body p {
  margin-bottom: var(--space-lg);
  color: var(--gray-700);
}

.article-page__body ul,
.article-page__body ol {
  margin-bottom: var(--space-lg);
  padding-left: var(--space-lg);
}

.article-page__body li {
  margin-bottom: var(--space-sm);
  line-height: 1.65;
  color: var(--gray-700);
}

.article-page__body ul li { list-style: disc; }
.article-page__body ol li { list-style: decimal; }

.article-page__body blockquote {
  border-left: 3px solid var(--accent);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-xl) 0;
  background: var(--accent-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--gray-700);
}

.article-page__body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
  font-size: var(--fs-sm);
}

.article-page__body th,
.article-page__body td {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--gray-200);
}

.article-page__body th {
  font-weight: 600;
  color: var(--text-primary);
  background: var(--gray-100);
}

/* ═══════════════════ BREADCRUMB ═══════════════════ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--text-secondary);
  transition: color var(--dur-fast) var(--ease-apple);
}

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

.breadcrumb__sep {
  color: var(--gray-400);
  font-size: 0.75em;
}

/* ═══════════════════ TRUST PAGES ═══════════════════ */
.trust-content {
  max-width: var(--max-w-narrow);
  margin: 0 auto;
  padding: var(--space-2xl) 0;
}

.trust-content h1 {
  font-size: var(--fs-2xl);
  margin-bottom: var(--space-lg);
}

.trust-content h2 {
  font-size: var(--fs-xl);
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.trust-content p {
  margin-bottom: var(--space-md);
  color: var(--gray-700);
}

.trust-content ul {
  margin-bottom: var(--space-lg);
  padding-left: var(--space-lg);
}

.trust-content li {
  margin-bottom: var(--space-sm);
  line-height: 1.6;
  color: var(--gray-700);
}

.trust-content li::marker { color: var(--accent); }

/* ═══════════════════ FOOTER — Apple style ═══════════════════ */
.footer {
  background: var(--gray-200);
  padding: var(--space-2xl) 0 var(--space-lg);
  margin-top: var(--space-3xl);
  border-top: 0.5px solid var(--gray-400);
}

.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.footer__col h4 {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.footer__col ul { padding: 0; margin: 0; }

.footer__col li {
  margin-bottom: var(--space-xs);
}

.footer__col a {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  transition: color var(--dur-fast) var(--ease-apple);
}

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

.footer__bottom {
  padding-top: var(--space-lg);
  border-top: 0.5px solid var(--gray-400);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
}

.footer__bottom p {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  margin: 0;
  line-height: 1.5;
}

/* ═══════════════════ RESPONSIVE ═══════════════════ */
@media (max-width: 768px) {
  :root {
    --fs-3xl: 2.4rem;
    --fs-2xl: 1.8rem;
    --fs-xl: 1.4rem;
    --space-3xl: 56px;
    --space-2xl: 40px;
  }

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

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

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

  .hero__actions .btn {
    width: 100%;
    max-width: 320px;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .article-list__item {
    flex-direction: column;
    gap: var(--space-sm);
  }
}

/* ═══════════════════ ANIMATIONS ═══════════════════ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeInUp 0.5s var(--ease-apple) both;
}

.animate-in:nth-child(2) { animation-delay: 50ms; }
.animate-in:nth-child(3) { animation-delay: 100ms; }
.animate-in:nth-child(4) { animation-delay: 150ms; }
.animate-in:nth-child(5) { animation-delay: 200ms; }
.animate-in:nth-child(6) { animation-delay: 250ms; }
.animate-in:nth-child(7) { animation-delay: 300ms; }
.animate-in:nth-child(8) { animation-delay: 350ms; }

/* ═══════════════════ PRINT ═══════════════════ */
@media print {
  .nav, .footer, .search, .hero__actions { display: none !important; }
  body { color: #000; background: #fff; }
  .article-page__body p { color: #000; }
}