/* beGin — Official Website Styles */

:root {
  --color-bg: #f4f7fa;
  --color-surface: #ffffff;
  --color-text: #1a2332;
  --color-text-muted: #5a6b7d;
  --color-primary: #4a6d8c;
  --color-primary-hover: #3a5870;
  --color-primary-light: #e8eef4;
  --color-border: #d8e0e8;
  --color-focus: #4a6d8c;
  --color-footer-bg: #2c3e50;
  --color-footer-text: #c8d4e0;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --max-width: 1080px;
  --header-height: 64px;
  --radius: 8px;
  --shadow-sm: 0 1px 3px rgba(26, 35, 50, 0.06);
  --shadow-md: 0 4px 12px rgba(26, 35, 50, 0.08);
  --transition: 0.15s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 200;
  padding: 0.5rem 1rem;
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

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

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
}

.logo:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Navigation */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 600;
}

.nav-toggle:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.25rem;
}

.site-nav a {
  display: block;
  padding: 0.5rem 0.875rem;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}

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

.site-nav a:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.site-nav a[aria-current="page"] {
  color: var(--color-primary);
  background: var(--color-primary-light);
  font-weight: 600;
}

/* Main content */
main {
  flex: 1;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.container-narrow {
  max-width: 720px;
}

/* Hero */
.hero {
  text-align: center;
  padding: 3rem 1.25rem 2.5rem;
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-bg) 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-icon {
  width: 96px;
  height: 96px;
  margin: 0 auto 1.25rem;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.hero-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  margin: 0 0 0.75rem;
  letter-spacing: -0.03em;
  color: var(--color-text);
}

.hero-tagline {
  font-size: clamp(1.0625rem, 2.5vw, 1.25rem);
  color: var(--color-text-muted);
  max-width: 540px;
  margin: 0 auto 1.75rem;
  line-height: 1.5;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.btn:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

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

.btn-disabled {
  background: var(--color-text-muted);
  color: #fff;
  cursor: default;
  opacity: 0.85;
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary-light);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* Sections */
.section {
  margin-bottom: 3rem;
}

.section:last-child {
  margin-bottom: 0;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 1.25rem;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.section-intro {
  color: var(--color-text-muted);
  margin: -0.5rem 0 1.5rem;
}

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.feature-card-icon {
  width: 44px;
  height: 44px;
  background: var(--color-primary-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.feature-card-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
}

.feature-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* Note modes */
.note-modes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.note-mode-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
}

.note-mode-card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--color-primary);
}

.note-mode-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.55;
}

.guide-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.guide-nav a {
  display: inline-block;
  padding: 0.375rem 0.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 500;
}

.guide-nav a:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.guide-nav a:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.guide-group-title {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin: 0 0 1rem;
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
}

.pricing-card-featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.pricing-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
}

.pricing-card .price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0.5rem 0 0;
}

.plan-price-alt {
  margin: 0.25rem 0 0;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
}

.plan-credits {
  margin: 1rem 0;
  padding: 0.625rem 0.75rem;
  background: var(--color-primary-light);
  border-radius: var(--radius);
  font-size: 0.9375rem;
  color: var(--color-text);
}

.plan-credits strong {
  font-size: 1.25rem;
  color: var(--color-primary);
}

.pricing-features {
  list-style: none;
  margin: 0;
  padding: 0;
  text-align: left;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.pricing-features li {
  padding: 0.375rem 0;
  border-bottom: 1px solid var(--color-border);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features li::before {
  content: "✓";
  color: var(--color-primary);
  font-weight: 600;
  margin-right: 0.5rem;
}

.credits-section {
  margin-top: 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.credits-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--color-text);
}

.credits-intro {
  margin: 0 0 1.25rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.credits-table-wrap {
  overflow-x: auto;
}

.credits-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.credits-table th,
.credits-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.credits-table th {
  background: var(--color-primary-light);
  color: var(--color-text);
  font-weight: 600;
}

.credits-table td:last-child,
.credits-table th:last-child {
  text-align: right;
  white-space: nowrap;
}

.credits-table tbody tr:last-child td {
  border-bottom: none;
}

.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;
}

.pricing-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.pricing-note {
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Page header (inner pages) */
.page-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 2.5rem 1.25rem 2rem;
}

.page-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.page-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.page-header p {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 600px;
}

/* Legal / prose content */
.prose h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
  color: var(--color-text);
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
}

.prose p,
.prose li {
  color: var(--color-text-muted);
}

.prose ul,
.prose ol {
  padding-left: 1.5rem;
}

.prose li {
  margin-bottom: 0.375rem;
}

.prose a {
  color: var(--color-primary);
}

.prose a:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: 2px;
}

.legal-notice {
  background: #fef9ec;
  border: 1px solid #e8dcc0;
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
  font-size: 0.9375rem;
  color: #5c4a1e;
}

.legal-notice strong {
  display: block;
  margin-bottom: 0.25rem;
}

.placeholder {
  background: var(--color-primary-light);
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
  font-family: ui-monospace, monospace;
  font-size: 0.875em;
  color: var(--color-primary);
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
}

.faq-item h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--color-text);
}

.faq-item p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* Guide steps */
.guide-section {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}

.guide-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.guide-section h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 1rem;
}

.guide-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: step;
}

.guide-steps li {
  position: relative;
  padding-left: 2.5rem;
  margin-bottom: 0.75rem;
  color: var(--color-text-muted);
  counter-increment: step;
}

.guide-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0.1rem;
  width: 1.75rem;
  height: 1.75rem;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.8125rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.guide-tip {
  background: var(--color-primary-light);
  border-radius: var(--radius);
  padding: 0.875rem 1rem;
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Contact box */
.contact-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.contact-box p {
  margin: 0 0 0.5rem;
  color: var(--color-text-muted);
}

.contact-box a {
  color: var(--color-primary);
  font-weight: 600;
}

/* Troubleshooting */
.troubleshoot-list {
  list-style: decimal;
  padding-left: 1.5rem;
}

.troubleshoot-list li {
  margin-bottom: 0.75rem;
  color: var(--color-text-muted);
}

/* Warning / info boxes */
.info-box {
  background: var(--color-surface);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}

.info-box p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.warning-box {
  background: #fef9ec;
  border-left: 4px solid #c9a227;
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}

.warning-box p {
  margin: 0;
  color: #5c4a1e;
  font-size: 0.9375rem;
}

/* 404 page */
.error-page {
  text-align: center;
  padding: 4rem 1.25rem;
}

.error-page h1 {
  font-size: 4rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 0.5rem;
}

.error-page h2 {
  font-size: 1.5rem;
  margin: 0 0 1rem;
}

.error-page p {
  color: var(--color-text-muted);
  margin: 0 0 1.5rem;
}

/* Footer */
.site-footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 2rem 1.25rem;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.5rem;
}

.footer-nav a {
  color: var(--color-footer-text);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition);
}

.footer-nav a:hover {
  color: #fff;
}

.footer-nav a:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
  border-radius: 2px;
}

.footer-copy {
  font-size: 0.8125rem;
  opacity: 0.85;
  margin: 0;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    display: none;
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    flex-direction: column;
    padding: 0.75rem;
  }

  .site-nav a {
    padding: 0.75rem 1rem;
  }

  .hero {
    padding: 2rem 1.25rem 1.75rem;
  }

  .container {
    padding: 1.5rem 1.25rem 2.5rem;
  }
}

@media (min-width: 769px) {
  .site-nav {
    display: block !important;
  }
}