/* ==================== 1xbet Korea Mirror - Styles ==================== */
/* Colors inspired by 1xbet official brand: white + blue */

:root {
  --color-primary: #1a75d1;
  --color-primary-dark: #0e5aa8;
  --color-primary-light: #e8f2fc;
  --color-accent: #005bbb;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f9fd;
  --color-text: #1a2233;
  --color-text-muted: #4a5568;
  --color-border: #d6e4f2;
  --color-white: #ffffff;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(26, 117, 209, 0.08);
  --shadow-md: 0 4px 14px rgba(26, 117, 209, 0.12);
  --shadow-lg: 0 8px 24px rgba(26, 117, 209, 0.18);
  --max-width: 1140px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Malgun Gothic", "맑은 고딕",
    "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ==================== Header ==================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: 18px;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: -0.5px;
}

.logo-text {
  color: var(--color-primary-dark);
  font-weight: 700;
  font-size: 16px;
}

.site-nav {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: background 0.2s, color 0.2s;
}

.site-nav a:hover,
.site-nav a:focus {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

/* ==================== Hero ==================== */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: var(--color-white);
  padding: 72px 0 64px;
  text-align: center;
}

.hero-inner {
  max-width: 860px;
}

.hero h1 {
  font-size: clamp(26px, 4.4vw, 40px);
  line-height: 1.25;
  margin: 0 0 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: clamp(15px, 2.3vw, 18px);
  margin: 0 0 16px;
  opacity: 0.97;
  line-height: 1.7;
}

.hero-note {
  font-size: 15px;
  margin: 0 0 32px;
  opacity: 0.9;
  line-height: 1.7;
}

.cta-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.cta-hint {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

/* ==================== Buttons ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
  border: none;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
  min-height: 48px;
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-white);
  color: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover,
.btn-primary:focus {
  background: #f7fbff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  outline: none;
}

.btn-lg {
  padding: 18px 44px;
  font-size: 18px;
  min-height: 56px;
  border-radius: var(--radius-lg);
  min-width: 260px;
}

/* On light background sections, invert button colors */
.section .btn-primary,
.cta-block .btn-primary,
.cta-final .btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.section .btn-primary:hover,
.cta-block .btn-primary:hover,
.cta-final .btn-primary:hover {
  background: var(--color-primary-dark);
}

/* ==================== Sections ==================== */
.section {
  padding: 64px 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section h2 {
  font-size: clamp(22px, 3.4vw, 30px);
  margin: 0 0 20px;
  color: var(--color-primary-dark);
  font-weight: 800;
  letter-spacing: -0.3px;
}

.section p {
  color: var(--color-text);
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.75;
}

/* ==================== Grid & Cards ==================== */
.grid {
  display: grid;
  gap: 20px;
  margin-top: 28px;
}

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

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card h3 {
  margin: 0 0 12px;
  font-size: 18px;
  color: var(--color-primary-dark);
  font-weight: 700;
}

.card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-muted);
}

.steps {
  margin: 0;
  padding-left: 22px;
  color: var(--color-text-muted);
}

.steps li {
  margin-bottom: 10px;
  font-size: 15px;
  line-height: 1.7;
}

.notice {
  margin-top: 32px;
  padding: 22px 24px;
  background: var(--color-white);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.notice h3 {
  margin: 0 0 10px;
  color: var(--color-primary-dark);
  font-size: 17px;
}

.notice p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 15px;
  line-height: 1.7;
}

/* ==================== CTA Blocks ==================== */
.cta-block {
  background: var(--color-primary-light);
  padding: 56px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.cta-block-inner {
  text-align: center;
  max-width: 720px;
}

.cta-block h2 {
  font-size: clamp(22px, 3.4vw, 28px);
  color: var(--color-primary-dark);
  margin: 0 0 14px;
  font-weight: 800;
}

.cta-block p {
  color: var(--color-text);
  margin: 0 0 26px;
  font-size: 16px;
}

.cta-block .cta-hint,
.cta-final .cta-hint {
  display: block;
  margin-top: 14px;
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 500;
}

.cta-final {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-accent) 100%);
  color: var(--color-white);
  padding: 64px 0;
  text-align: center;
}

.cta-final-inner {
  max-width: 720px;
}

.cta-final h2 {
  color: var(--color-white);
  font-size: clamp(22px, 3.4vw, 30px);
  margin: 0 0 14px;
  font-weight: 800;
}

.cta-final p {
  color: rgba(255, 255, 255, 0.95);
  margin: 0 0 28px;
  font-size: 16px;
  line-height: 1.75;
}

.cta-final .btn-primary {
  background: var(--color-white);
  color: var(--color-primary-dark);
}

.cta-final .btn-primary:hover {
  background: #f7fbff;
}

.cta-final .cta-hint {
  color: rgba(255, 255, 255, 0.85);
}

/* ==================== FAQ ==================== */
.faq {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq details {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease;
}

.faq details[open] {
  box-shadow: var(--shadow-md);
}

.faq summary {
  cursor: pointer;
  padding: 18px 22px;
  font-weight: 700;
  color: var(--color-primary-dark);
  font-size: 16px;
  list-style: none;
  position: relative;
  padding-right: 48px;
  user-select: none;
}

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

.faq summary::after {
  content: "+";
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  color: var(--color-primary);
  font-weight: 700;
  transition: transform 0.2s ease;
}

.faq details[open] summary::after {
  content: "−";
}

.faq details p {
  margin: 0;
  padding: 0 22px 20px;
  color: var(--color-text-muted);
  font-size: 15px;
  line-height: 1.75;
}

/* ==================== Footer ==================== */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.95);
  padding: 40px 0 32px;
}

.footer-inner {
  text-align: center;
}

.footer-brand {
  margin: 0 0 10px;
  font-weight: 700;
  font-size: 16px;
  color: var(--color-white);
}

.footer-note {
  margin: 0 0 20px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.footer-nav {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.footer-nav a {
  color: var(--color-white);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: background 0.2s ease;
}

.footer-nav a:hover,
.footer-nav a:focus {
  background: rgba(255, 255, 255, 0.15);
}

/* ==================== Responsive - Mobile ==================== */
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  .header-inner {
    height: auto;
    padding: 12px 0;
    flex-direction: column;
    gap: 10px;
  }

  .site-nav {
    justify-content: center;
    width: 100%;
    gap: 4px;
  }

  .site-nav a {
    padding: 6px 10px;
    font-size: 14px;
  }

  .hero {
    padding: 48px 0 44px;
  }

  .hero-note {
    font-size: 14px;
  }

  .section {
    padding: 44px 0;
  }

  .cta-block,
  .cta-final {
    padding: 44px 0;
  }

  .grid-2 {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .card {
    padding: 20px;
  }

  .btn-lg {
    padding: 16px 28px;
    font-size: 16px;
    min-width: 100%;
    width: 100%;
    max-width: 340px;
  }

  .faq summary {
    padding: 16px 18px;
    padding-right: 44px;
    font-size: 15px;
  }

  .faq details p {
    padding: 0 18px 18px;
    font-size: 14.5px;
  }

  .footer-nav {
    gap: 4px;
  }
}

@media (max-width: 420px) {
  .hero h1 {
    font-size: 24px;
  }

  .section h2,
  .cta-block h2,
  .cta-final h2 {
    font-size: 22px;
  }

  .logo-text {
    font-size: 15px;
  }
}

/* ==================== Accessibility ==================== */
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}