/* Ledger Hardware Wallet Review - Modern multi-language site */
:root {
  --color1: #00ffd4;
  --color2: #68ffa9;
  --color3: #00221a;
  --color4: #717977;
  --color5: #e2e2e2;
  --bg-dark: #001a14;
  --bg-card: #002821;
  --border-subtle: rgba(0, 255, 212, 0.15);
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-display: 'Segoe UI', system-ui, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 8px 32px rgba(0,0,0,0.3);
  --transition: 0.25s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color5);
  background: var(--bg-dark);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  color: var(--color1);
  margin: 0 0 1rem;
}

h2 {
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  color: var(--color2);
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

h3 {
  font-size: clamp(1.1rem, 2.5vw, 1.25rem);
  color: var(--color1);
  margin: 1.75rem 0 0.75rem;
}

p {
  margin: 0 0 1rem;
  color: var(--color5);
}

a {
  color: var(--color1);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color2);
}

.color1 { color: #00ffd4; }
.color2 { color: #68ffa9; }
.color3 { color: #00221a; }
.color4 { color: #717977; }
.color5 { color: #e2e2e2; }

/* Layout */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */
.site-header {
  background: linear-gradient(180deg, var(--bg-card) 0%, transparent 100%);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color1);
}

.nav-main {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  align-items: center;
}

.nav-main a {
  color: var(--color5);
  font-size: 0.95rem;
}

.nav-main a:hover {
  color: var(--color1);
}

.lang-switcher {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.lang-switcher a {
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  font-size: 0.85rem;
  background: rgba(0,255,212,0.1);
  color: var(--color1);
}

.lang-switcher a:hover,
.lang-switcher a.active {
  background: rgba(0,255,212,0.2);
  color: var(--color2);
}

/* Hero / intro block */
.hero-block {
  padding: 2.5rem 0;
  background: linear-gradient(135deg, var(--bg-card) 0%, transparent 50%);
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
}

.hero-block h1 {
  margin-top: 0;
}

/* Content blocks */
.content-block {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

.content-block h2:first-child,
.content-block h3:first-child {
  margin-top: 0;
}

/* Images in content - not very large */
.content-block img,
article img {
  max-width: 100%;
  height: auto;
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius);
  border: 1px solid var(--border-subtle);
  margin: 1rem 0;
  display: block;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.95rem;
  background: rgba(0,0,0,0.2);
  border-radius: var(--radius);
  overflow: hidden;
}

th, td {
  padding: 0.65rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

th {
  background: rgba(0,255,212,0.08);
  color: var(--color2);
  font-weight: 600;
}

tr:last-child td {
  border-bottom: none;
}

/* Lists */
ul, ol {
  margin: 0 0 1rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.35rem;
}

/* FAQ */
.faq-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.faq-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  overflow: hidden;
  background: var(--bg-card);
}

.faq-question {
  width: 100%;
  padding: 1rem 1.25rem;
  text-align: left;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color2);
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  transition: background var(--transition);
}

.faq-question:hover {
  background: rgba(0,255,212,0.06);
}

.faq-question::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--color1);
  flex-shrink: 0;
}

.faq-item.is-open .faq-question::after {
  content: '−';
}

.faq-answer {
  padding: 0 1.25rem 1rem;
  display: none;
  color: var(--color5);
}

.faq-item.is-open .faq-answer {
  display: block;
}

.faq-answer p {
  margin: 0 0 0.5rem;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

/* Footer */
.site-footer {
  margin-top: 3rem;
  padding: 2rem 0;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-card);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
  align-items: flex-start;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
}

.footer-nav a {
  color: var(--color4);
  font-size: 0.9rem;
}

.footer-nav a:hover {
  color: var(--color1);
}

.footer-lang {
  display: flex;
  gap: 0.5rem;
}

.footer-lang a {
  color: var(--color4);
  font-size: 0.9rem;
}

.copyright {
  font-size: 0.85rem;
  color: var(--color4);
  width: 100%;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

/* Main content area */
main {
  padding: 1.5rem 0 3rem;
  min-height: 50vh;
}

/* Internal link blocks */
.internal-links {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  background: rgba(0,255,212,0.06);
  border-radius: var(--radius);
  border-left: 4px solid var(--color1);
}

/* Mobile menu toggle for small screens */
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color1);
  color: var(--color1);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-main {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-main.is-open {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .lang-switcher {
    margin-left: 0;
  }

  .content-block {
    padding: 1.25rem 1rem;
  }

  table {
    font-size: 0.85rem;
  }

  th, td {
    padding: 0.5rem 0.6rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  body {
    font-size: 15px;
  }
}

/* Skip link for a11y */
.skip-link {
  position: absolute;
  top: -3rem;
  left: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--color3);
  color: var(--color1);
  z-index: 200;
  border-radius: 6px;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0.5rem;
}