/* ==========================================================================
   Bucket List Polar Destinations - stylesheet
   Editorial photo-led theme
   ========================================================================== */

:root {
  --color-bg:         #F7F5EF;
  --color-surface:    #FFFFFF;
  --color-surface-2:  #F0EDE3;
  --color-border:     #E2DECE;
  --color-text:       #16202C;
  --color-muted:      #5C6B78;
  --color-accent:     #1F6FEB;
  --color-accent-bg:  #EAF1FE;
  --color-aurora:     #1C7A5A;
  --color-aurora-bg:  #E9F5EF;
  --color-gold:       #93691A;
  --color-gold-bg:    #FBF1DC;
  --color-brand:      #0B3D91;
  --color-brand-bg:   #EAF1FE;
  --color-verified:   #1E8E3E;
  --color-header-bg:  #0B1524;
  --color-header-text: #EAF0F8;
  --radius:           10px;
  --font-sans:        'Space Grotesk', 'Inter', sans-serif;
  --font-body:        'Inter', sans-serif;
  --max-width:        1180px;
  --shadow-card: 0 1px 2px rgba(22,32,44,0.04), 0 8px 24px rgba(22,32,44,0.06);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, dl, dd, dt, ol, ul, figure { margin: 0; }
ul[class], ol[class] { padding: 0; list-style: none; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-family: var(--font-sans);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-text);
}

h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); font-weight: 700; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin-bottom: 20px; }
h3 { font-size: 1.3rem; margin-bottom: 10px; }
h4 { font-size: 1.05rem; margin-bottom: 8px; }

p { margin-bottom: 16px; color: var(--color-text); }
p:last-child { margin-bottom: 0; }

.section-lede {
  color: var(--color-muted);
  font-size: 1.05rem;
  max-width: 760px;
  margin-bottom: 24px;
}

section { padding: 72px 0; border-bottom: 1px solid var(--color-border); }
section:last-of-type { border-bottom: none; }

a.inline-link, p a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
a.inline-link:hover, p a:hover { color: var(--color-brand); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-header-bg);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
  gap: 24px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-header-text);
  white-space: nowrap;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: flex-end;
}

.site-nav a {
  font-size: 0.92rem;
  color: rgba(234, 240, 248, 0.7);
  font-weight: 500;
}
.site-nav a:hover { color: #fff; }

.independence-bar {
  background: #0F1D30;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  font-size: 0.82rem;
  color: rgba(234, 240, 248, 0.65);
  text-align: center;
  padding: 8px 0;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: #fff;
}

.hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8,13,22,0.45) 0%, rgba(8,13,22,0.55) 40%, rgba(8,13,22,0.7) 70%, rgba(8,13,22,0.95) 100%);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  padding: 90px 0 56px;
}

.hero__content h1 { color: #fff; }

.hero__eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #B9E6D2;
  background: rgba(28, 122, 90, 0.35);
  border: 1px solid rgba(185, 230, 210, 0.4);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.hero__subtitle {
  font-size: 1.15rem;
  color: rgba(234, 240, 248, 0.85);
  max-width: 680px;
  margin-top: 20px;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero__ctas a {
  border: 1px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(6px);
  color: #fff;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-size: 0.92rem;
  font-weight: 500;
}
.hero__ctas a:hover { border-color: #fff; background: rgba(255,255,255,0.18); }

.hero__credit {
  position: absolute;
  right: 12px;
  bottom: 8px;
  z-index: 2;
  font-size: 0.68rem;
  color: rgba(255,255,255,0.55);
}
.hero__credit a { color: rgba(255,255,255,0.75); text-decoration: underline; }

/* ---------- Stat chips ---------- */
.stat-chips {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-top: 40px;
  position: relative;
  z-index: 2;
}

.stat-chip {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.22);
  backdrop-filter: blur(6px);
  border-radius: var(--radius);
  padding: 16px 16px;
}

.stat-chip__value {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.3rem;
  color: #fff;
  display: block;
  margin-bottom: 4px;
}

.stat-chip__label {
  font-size: 0.82rem;
  color: rgba(234, 240, 248, 0.75);
}

.stat-chip-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 28px 0;
}

.stat-chip-row .stat-chip {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}

.stat-chip-row .stat-chip__value { color: var(--color-brand); }
.stat-chip-row .stat-chip__label { color: var(--color-muted); }

/* ---------- Anchor nav ---------- */
.anchor-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.18);
  position: relative;
  z-index: 2;
}

.anchor-nav a {
  font-size: 0.85rem;
  color: rgba(234, 240, 248, 0.75);
  border: 1px solid rgba(255,255,255,0.28);
  border-radius: 999px;
  padding: 6px 14px;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.anchor-nav a:hover,
.anchor-nav a.is-active {
  color: #fff;
  border-color: #fff;
  background: rgba(255,255,255,0.12);
}

/* ---------- Criteria list ---------- */
.criteria-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

.criteria-list li {
  counter-increment: crit;
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius);
  padding: 20px 20px 20px 56px;
}

.criteria-list {
  counter-reset: crit;
}

.criteria-list li::before {
  content: counter(crit);
  position: absolute;
  left: 16px;
  top: 20px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-aurora-bg);
  color: var(--color-aurora);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.criteria-list strong { color: var(--color-text); font-family: var(--font-sans); display: block; margin-bottom: 4px; }

/* ---------- Destination cards ---------- */
.destination-list {
  counter-reset: dest;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.destination-card {
  counter-increment: dest;
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.destination-card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-surface-2);
}

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

.destination-card__number {
  position: absolute;
  left: 14px;
  top: 14px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(11,21,36,0.72);
  color: #fff;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.destination-card__body {
  padding: 22px 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.destination-card h3 { margin-bottom: 6px; }

.destination-tag {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--color-gold);
  background: var(--color-gold-bg);
  border: 1px solid rgba(147, 105, 26, 0.25);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
  align-self: flex-start;
}

.destination-card p:last-child { color: var(--color-muted); font-size: 0.96rem; }

/* ---------- Highlights list ---------- */
.highlights-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}
.highlights-list li:last-child { border-bottom: none; }
.highlights-list strong { font-family: var(--font-sans); color: var(--color-text); }

/* ---------- Comparison block ---------- */
.comparison-block {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin: 28px 0;
}

.comparison-arctic, .comparison-antarctica {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.comparison-photo {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

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

.comparison-arctic .comparison-body,
.comparison-antarctica .comparison-body { padding: 22px; }

.comparison-arctic h4 { color: var(--color-aurora); }
.comparison-antarctica h4 { color: var(--color-accent); }

.comparison-arctic ul, .comparison-antarctica ul { display: flex; flex-direction: column; gap: 10px; }
.comparison-arctic li, .comparison-antarctica li {
  padding-left: 16px;
  position: relative;
  font-size: 0.95rem;
}
.comparison-arctic li::before, .comparison-antarctica li::before {
  content: "-";
  position: absolute;
  left: 0;
  color: var(--color-muted);
}

/* ---------- Operator spotlight ---------- */
.featured-operator {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  margin: 20px 0 32px;
}

.featured-operator__media {
  position: relative;
  min-height: 320px;
}

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

.featured-operator__content { padding: 32px; }

.featured-operator__label {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-brand);
  background: var(--color-brand-bg);
  border: 1px solid rgba(11, 61, 145, 0.3);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.featured-operator h2, .featured-operator h3 { margin-bottom: 10px; }

.featured-operator__tagline {
  color: var(--color-muted);
  font-size: 1.05rem;
  margin-bottom: 24px;
}

.featured-operator__specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px 28px;
  margin-bottom: 28px;
}

.featured-operator__specs dt {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  margin-bottom: 4px;
}

.featured-operator__specs dd {
  font-size: 0.98rem;
  color: var(--color-text);
}

.featured-operator__link {
  display: inline-block;
  background: var(--color-brand);
  color: #fff;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-size: 0.95rem;
}
.featured-operator__link:hover { background: #092c6b; }

@media (max-width: 820px) {
  .featured-operator { grid-template-columns: 1fr; }
  .featured-operator__media { min-height: 220px; }
}

/* ---------- Planning steps ---------- */
.planning-steps {
  counter-reset: step;
  display: flex;
  flex-direction: column;
  margin-top: 28px;
}

.planning-steps li {
  counter-increment: step;
  position: relative;
  padding: 16px 0 16px 44px;
  border-left: 2px solid var(--color-border);
  margin-left: 15px;
}

.planning-steps li:last-child { border-left: 2px solid transparent; }

.planning-steps li::before {
  content: counter(step);
  position: absolute;
  left: -15px;
  top: 14px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--color-accent-bg);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.planning-steps strong { color: var(--color-text); font-family: var(--font-sans); display: block; margin-bottom: 4px; }

/* ---------- Mistakes list ---------- */
.mistakes-list li {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-gold);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 14px;
}

.mistakes-list strong {
  display: block;
  font-family: var(--font-sans);
  color: var(--color-text);
  margin-bottom: 8px;
}

.mistakes-list .correction {
  display: block;
  color: var(--color-muted);
  font-size: 0.92rem;
}

/* ---------- FAQ ---------- */
.faq-list details {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
}

.faq-list summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 20px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq-list summary::-webkit-details-marker { display: none; }

.faq-list summary::after {
  content: "+";
  font-size: 1.3rem;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-list details[open] summary::after { transform: rotate(45deg); }

.faq-list .faq-answer {
  padding: 0 20px 20px;
  color: var(--color-muted);
}

/* ---------- Market data / verified facts ---------- */
.verified-fact {
  font-size: 0.85rem;
  color: var(--color-muted);
  border-left: 2px solid var(--color-verified);
  padding-left: 10px;
  margin-top: 8px;
}

/* ---------- CTA final ---------- */
.final-cta {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}

/* ---------- Table (methodology) ---------- */
.criteria-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.95rem;
  box-shadow: var(--shadow-card);
}

.criteria-table th, .criteria-table td {
  border: 1px solid var(--color-border);
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
}

.criteria-table th {
  background: var(--color-surface-2);
  font-family: var(--font-sans);
  color: var(--color-brand);
}

.criteria-table td { background: var(--color-surface); }

/* ---------- Photo credits ---------- */
.credits-list {
  font-size: 0.85rem;
  color: var(--color-muted);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.credits-list a { color: var(--color-muted); text-decoration: underline; }
.credits-list a:hover { color: var(--color-accent); }

/* ---------- Back link ---------- */
.back-link {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--color-accent);
  font-size: 0.92rem;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-header-bg);
  color: rgba(234, 240, 248, 0.85);
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  margin-bottom: 28px;
}

.footer-grid strong { font-family: var(--font-sans); display: block; margin-bottom: 10px; color: #fff; }
.footer-grid p { color: rgba(234, 240, 248, 0.6); font-size: 0.92rem; max-width: 480px; }

.footer-grid nav { display: flex; flex-direction: column; gap: 8px; }
.footer-grid nav a { color: rgba(234, 240, 248, 0.7); font-size: 0.92rem; }
.footer-grid nav a:hover { color: #fff; }

.footer-legal {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 20px;
  font-size: 0.8rem;
  color: rgba(234, 240, 248, 0.5);
}

/* ---------- Simple pages (about / privacy / methodology) ---------- */
.page-header {
  padding: 56px 0 8px;
}

.page-intro {
  color: var(--color-muted);
  font-size: 1.1rem;
  max-width: 700px;
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .site-header .container { flex-wrap: wrap; }
  .site-nav { gap: 12px; }
  .footer-grid { grid-template-columns: 1fr; }
  section { padding: 48px 0; }
  .hero { min-height: 560px; }
}