:root {
  --bg: #f8fafc;
  --bg-soft: #f1f5f9;
  --accent: #16a34a;
  --accent-soft: rgba(22, 163, 74, 0.1);
  --accent2: #0284c7;
  --text-main: #0f172a;
  --text-sub: #475569;
  --card-bg: rgba(255, 255, 255, 0.95);
  --border-soft: rgba(100, 116, 139, 0.2);
  --radius-xl: 20px;
  --shadow-soft: 0 24px 60px rgba(148,163,184,0.4);
  --transition-fast: 180ms ease-out;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Noto Sans KR', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(56,189,248,0.15), transparent 60%),
    radial-gradient(circle at bottom right, rgba(34,197,94,0.12), transparent 55%),
    var(--bg);
  color: var(--text-main);
  min-height: 100vh;
  transition: background 0.3s ease, color 0.3s ease;
}

a {
  color: inherit;
  text-decoration: none;
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  z-index: 20;
  background:
    radial-gradient(circle at top left, rgba(56,189,248,0.15), transparent 60%),
    radial-gradient(circle at bottom right, rgba(34,197,94,0.12), transparent 55%),
    #f8fafc;
  border-bottom: 1px solid var(--border-soft);
  transition: transform 0.3s ease-out;
  opacity: 1;
}

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pill-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  background: #ffffff;
  border: 1px solid rgba(100,116,139,0.3);
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  transition: all var(--transition-fast);
}

.pill-brand.status-active .pill-dot {
  background: #22c55e;
  box-shadow: 0 0 12px rgba(34,197,94,0.85);
}

.pill-brand.status-active {
  border-color: rgba(34,197,94,0.6);
}

.pill-brand.status-working .pill-dot {
  background: #eab308;
  box-shadow: 0 0 12px rgba(234,179,8,0.85);
}

.pill-brand.status-working {
  border-color: rgba(234,179,8,0.6);
}

.pill-brand.status-stopped .pill-dot {
  background: #ef4444;
  box-shadow: 0 0 12px rgba(239,68,68,0.85);
}

.pill-brand.status-stopped {
  border-color: rgba(239,68,68,0.6);
}


.nav-title {
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.02em;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-sub);
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-tag {
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.45);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ffffff;
}

.nav-tag span {
  font-size: 14px;
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 32px 20px 60px;
  margin-top: 60px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0,1.2fr);
  gap: 28px;
  margin-top: 12px;
}

.hero-mainTitle {
  font-size: 36px;
  line-height: 1.3;
  letter-spacing: -0.04em;
  margin-bottom: 14px;
}

.hero-mainTitle span.highlight-green {
  color: var(--accent);
}

.hero-mainTitle span.highlight-blue {
  color: var(--accent2);
}

.hero-sub {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 22px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.hero-badge {
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid rgba(100,116,139,0.25);
  font-size: 12px;
  color: var(--text-sub);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: radial-gradient(circle at top left, rgba(56,189,248,0.15), rgba(255,255,255,0.95));
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent2);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn-primary,
.btn-secondary {
  border: none;
  border-radius: 999px;
  padding: 15px 24px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  box-shadow: 0 14px 30px rgba(0,0,0,0.45);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #22c55e 0%, #38bdf8 45%, #6366f1 100%);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(15,23,42,0.9);
}

.btn-secondary {
  background: #ffffff;
  border: 1px solid rgba(100,116,139,0.3);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: #1e40af;
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-caption {
  font-size: 13px;
  color: var(--text-sub);
  margin-top: 10px;
}

.hero-card {
  margin-top: 4px;
  padding: 20px 18px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top right, rgba(56,189,248,0.2), transparent 55%),
    radial-gradient(circle at bottom left, rgba(34,197,94,0.22), transparent 55%),
    var(--card-bg);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-soft);
}

.hero-card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.hero-card-sub {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 20px;
  line-height: 1.7;
}

.hero-stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-stat {
  flex: 1;
  min-width: 130px;
  padding: 14px 14px 12px;
  border-radius: 16px;
  border: 1px solid rgba(148,163,184,0.45);
  background: rgba(15,23,42,0.9);
  font-size: 12px;
}

.hero-stat-label {
  color: var(--text-sub);
  margin-bottom: 6px;
}

.hero-stat-value {
  font-size: 20px;
  font-weight: 700;
}

.hero-stat-pill {
  margin-top: 8px;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 11px;
  background: var(--accent-soft);
  color: #bbf7d0;
  display: inline-block;
}

.section-header {
  position: relative;
  padding-left: 16px;
  margin-top: 42px;
  margin-bottom: 20px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.section-header::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 4px;
  background: var(--accent);
  border-radius: 2px;
}

.section-caption {
  font-size: 14px;
  color: var(--text-sub);
  margin-top: 6px;
  line-height: 1.6;
}

.grid {
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: 14px;
}

.card {
  padding: 20px 20px 18px;
  border-radius: 18px;
  background: var(--card-bg);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-soft);
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
  border-color: var(--accent);
  background: #ffffff;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
}

.card-body {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
}

.step-grid {
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: 12px;
  margin-top: 6px;
}

.step-card {
  padding: 18px 18px 16px;
  border-radius: 18px;
  background: var(--card-bg);
  border: 1px solid var(--border-soft);
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  transition: background 0.3s ease, border 0.3s ease;
}

.step-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent2);
  margin-bottom: 6px;
}

.step-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}

.faq-item {
  border-radius: 18px;
  background: var(--card-bg);
  border: 1px solid var(--border-soft);
  font-size: 14px;
  overflow: hidden;
  margin-bottom: 14px;
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: rgba(148,163,184,0.5);
}

.faq-q {
  font-weight: 600;
  padding: 20px 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  user-select: none;
  transition: background var(--transition-fast);
  font-size: 15px;
}

.faq-q:hover {
  background: rgba(56,189,248,0.08);
}

.faq-q::after {
  content: '▼';
  font-size: 11px;
  color: var(--text-sub);
  margin-left: auto;
  transition: transform var(--transition-fast);
}

.faq-q-text {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.faq-q-text code {
  padding: 2px 7px;
  border-radius: 6px;
  background: #e5e7eb;
  border: 1px solid #d1d5db;
  color: #111827;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
  font-size: 0.92em;
}

.faq-item.active .faq-q::after {
  transform: rotate(180deg);
}

.faq-a {
  color: var(--text-sub);
  line-height: 1.8;
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.faq-item.active .faq-a {
  max-height: 700px;
  padding: 20px 24px 24px;
}

.faq-a b {
  font-weight: 700;
  color: var(--text-main);
}

.faq-a ul,
.faq-a ol {
  margin: 8px 0 0;
  padding-left: 18px;
}

.faq-a li + li {
  margin-top: 4px;
}

.faq-a code {
  padding: 2px 7px;
  border-radius: 6px;
  background: #e5e7eb;
  border: 1px solid #d1d5db;
  color: #111827;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
  font-size: 0.92em;
}

.cmd-code {
  display: inline-block;
  padding: 2px 7px !important;
  border-radius: 6px !important;
  background: #e5e7eb !important;
  border: 1px solid #d1d5db !important;
  color: #111827 !important;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace !important;
  font-size: 0.92em;
  line-height: 1.2;
}

.faq-a a {
  color: var(--accent2);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.apply-box {
  margin-top: 28px;
  padding: 22px 20px;
  border-radius: 18px;
  background:
    radial-gradient(circle at top left, rgba(56,189,248,0.15), transparent 55%),
    radial-gradient(circle at bottom right, rgba(34,197,94,0.15), transparent 55%),
    rgba(255,255,255,0.98);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-soft);
  font-size: 14px;
  line-height: 1.7;
  transition: background 0.3s ease, border 0.3s ease;
}

.apply-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.apply-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 10px;
}

.footer {
  margin-top: 60px;
  font-size: 13px;
  color: var(--text-sub);
  text-align: center;
  border-top: 1px solid rgba(148,163,184,0.25);
  padding-top: 32px;
  padding-bottom: 32px;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 6px;
}

/* Navigation Menu Styles */
.nav-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  transition: color var(--transition-fast);
}

.nav-logo:hover {
  color: var(--accent2);
}

.nav-menu {
  display: flex;
  gap: 2px;
  align-items: center;
}

.nav-item {
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-sub);
  position: relative;
  display: inline-flex;
  align-items: center;
  transition: color var(--transition-fast);
}

.nav-item:hover {
  color: var(--text-main);
}

.nav-item.active {
  color: var(--accent);
}

.nav-item.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.nav-item-external {
  color: var(--text-sub);
  font-weight: 500;
}

.nav-item-external:hover {
  color: var(--text-main);
}

.nav-external-arrow {
  font-size: 0.8em;
  opacity: 0.7;
  margin-left: 4px;
  vertical-align: middle;
}

.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  padding: 6px;
  border-radius: 6px;
  background: transparent;
  border: 1px solid rgba(100,116,139,0.3);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--text-main);
  transition: all var(--transition-fast);
  margin-right: 8px;
}

.nav-toggle:hover {
  background: rgba(34,197,94,0.1);
  border-color: var(--accent);
}

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

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background:
      radial-gradient(circle at top left, rgba(56,189,248,0.15), transparent 60%),
      radial-gradient(circle at bottom right, rgba(34,197,94,0.12), transparent 55%),
      #f8fafc;
    border-bottom: 1px solid var(--border-soft);
    padding: 8px 0;
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-item {
    width: 100%;
    padding: 12px 20px;
    border-bottom: 1px solid rgba(148,163,184,0.15);
  }

  .nav-item.active::after {
    display: none;
  }

  .nav-item.active {
    background: rgba(34,197,94,0.1);
    border-left: 3px solid var(--accent);
    padding-left: 17px;
  }

}

/* Iframe Container */
.iframe-container {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  aspect-ratio: 640 / 1827;
}

.iframe-container iframe {
  width: 100%;
  height: 100%;
}

.footer-link {
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.command-category {
  margin-bottom: 32px;
}

.command-category-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}

.hidden {
  display: none;
}

.admin-command {
  background: linear-gradient(135deg, rgba(234,179,8,0.08), rgba(249,115,22,0.06));
  border-color: rgba(234,179,8,0.35);
}

.admin-command:hover {
  border-color: rgba(234,179,8,0.6);
  background: linear-gradient(135deg, rgba(234,179,8,0.12), rgba(249,115,22,0.08));
}

.admin-command .faq-q::before {
  content: '🔒 ';
  font-size: 12px;
  opacity: 0.8;
}

.btn-toggle-admin {
  padding: 12px 24px;
  border-radius: 999px;
  border: 2px #ffffff;
  background: rgba(255,255,255,0.95);
  color: var(--text-main);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 12px rgba(234,179,8,0.15);
}

.btn-toggle-admin:hover {
  background: rgba(234,179,8,0.1);
  border-color: rgba(234,179,8,0.6);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(234,179,8,0.25);
}

.btn-toggle-admin.active {
  background: linear-gradient(135deg, rgba(234,179,8,0.15), rgba(249,115,22,0.12));
  border-color: rgba(234,179,8,0.6);
}

.toggle-icon {
  font-size: 16px;
}

.toggle-text {
  letter-spacing: -0.01em;
}

.feature-item {
  background: linear-gradient(135deg, rgba(56,189,248,0.06), rgba(34,197,94,0.04));
  border-color: rgba(56,189,248,0.3);
}

.feature-item:hover {
  border-color: rgba(56,189,248,0.5);
  background: linear-gradient(135deg, rgba(56,189,248,0.08), rgba(34,197,94,0.06));
}

@media (min-width: 768px) {
  .hero-mainTitle {
    font-size: 42px;
  }

  .section-header {
    font-size: 24px;
  }

  .grid {
    grid-template-columns: repeat(2, minmax(0,1fr));
  }

  .step-grid {
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
}

@media (min-width: 1024px) {
  .wrap {
    padding-top: 40px;
    padding-bottom: 72px;
  }

  .hero-mainTitle {
    font-size: 46px;
  }

  .grid {
    grid-template-columns: repeat(4, minmax(0,1fr));
  }

  .step-grid {
    grid-template-columns: repeat(5, minmax(0,1fr));
  }
}