header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 120;
  overflow-x: clip;
  overflow-y: visible;
}

.header-hero {
  min-width: 1400px;
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center;
  display: block;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  pointer-events: none;
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.25));
}

.nav-bar {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  z-index: 3;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  cursor: pointer;
}
.logo img {
  height: 30px;
  width: auto;
  display: block;
  object-fit: contain;
  transition: none;
  box-shadow: none;
}
.logo:hover img { transform: none; box-shadow: none; }
.logo:active img { transform: none; box-shadow: none; }

.auth-banner {
  color: #000000;
  margin-left: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 36vw;
}

.nav {
  position: static;
  right: auto;
  top: auto;
  transform: none;
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav a {
  color: #000000;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-base), color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.nav a:hover,
.nav a:focus-visible {
  color: #000000;
  background: rgba(255, 255, 255, 0.14);
  transform: none;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.18);
}

.nav a:focus-visible {
  outline: none;
}

.nav-item {
  position: relative;
}

.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 224px;
  background: #ffffff;
  border: 1px solid #cbd5f5;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.12);
  border-radius: var(--radius-md);
  display: none;
  margin-top: 6px;
  z-index: 200;
}

.dropdown.show {
  display: block;
}

.dropdown-item {
  display: block;
  width: 100%;
  padding: 10px 14px;
  background: #ffffff;
  border: 0;
  text-align: left;
  color: #0f172a;
  cursor: pointer;
  white-space: nowrap;
}

.dropdown-item:hover {
  background: #f1f5f9;
  color: #0f172a;
}

.login-btn {
  padding: 0 30px;
  width: 100px;
  height: 32px;
  background: #ffffff;
  color: #000000;
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

.login-btn:hover,
.login-btn:focus-visible {
  background: #f2f2f2;
  color: #000000;
  border-color: rgba(0, 0, 0, 0.25);
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.18);
}

.login-btn:focus-visible {
  outline: none;
}

.burger {
  display: none;
  position: absolute;
  bottom: -20px;
  right: 16px;
  transform: translateY(-50%);
  background: transparent;
  border: 0;
  width: 40px;
  height: 40px;
  padding: 6px;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  transition: background var(--transition-base);
}

.burger span {
  display: block;
  height: 3px;
  background: #000000;
  border-radius: 2px;
  box-shadow: 0 1px 2px rgba(29, 39, 68, 0.12);
}

.burger:hover {
  background: rgba(47, 91, 168, 0.1);
}

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(29, 39, 68, 0.35);
  backdrop-filter: blur(10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 110;
}

.drawer {
  position: fixed;
  top: 0;
  right: -300px;
  width: 280px;
  height: 100vh;
  background: #ffffff;
  color: #0f172a;
  border-left: 1px solid #e2e8f0;
  box-shadow: -12px 0 32px rgba(15, 23, 42, 0.15);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 130;
}

.drawer-close {
  align-self: flex-end;
  width: 36px;
  height: 36px;
  background: #ffffff;
  border: 1px solid #94a3b8;
  color: #475569;
  border-radius: 4px;
  transition: background var(--transition-base), transform var(--transition-base), color var(--transition-base), border-color var(--transition-base);
  cursor: pointer;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.08);
}

.drawer-close::before,
.drawer-close::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}
.drawer-close::before { transform: rotate(45deg); }
.drawer-close::after  { transform: rotate(-45deg); }

.drawer-close:hover,
.drawer-close:focus-visible {
  background: #fee2e2;
  border-color: #fca5a5;
  color: #b91c1c;
}

.drawer-close:focus-visible {
  outline: none;
}

.drawer-auth-banner {
  background: #2563eb;
  color: #ffffff;
  padding: 14px 16px;
  border: none;
  border-radius: 6px;
  text-align: center;
  font-size: 13px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: none;
  background: transparent;
  border-radius: 0;
  overflow: visible;
}

.drawer-nav a,
.drawer-item > a {
  display: block;
  color: #0f172a;
  padding: 14px 16px;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  background: #f8fafc;
  font-size: 13px;
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

.drawer-nav a:hover,
.drawer-item > a:hover {
  color: #2563eb;
  background: #eff6ff;
  border-color: #bfdbfe;
}

.drawer-submenu {
  display: flex;
  flex-direction: column;
}

.drawer-submenu[hidden] {
  display: none;
}

.drawer-submenu-item {
  background: none;
  border: 0;
  color: #475569;
  padding: 10px 0 10px 16px;
  text-align: left;
  cursor: pointer;
  white-space: nowrap;
}

.drawer-submenu-item:hover {
  color: #2563eb;
}

.drawer-login {
  margin-top: auto;
  background: #ffffff;
  color: #000000;
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
  padding: 12px 16px;
  cursor: pointer;
  font-size: 13px;
  text-align: center;
  transition: background var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.drawer-login:hover,
.drawer-login:focus-visible {
  background: #f2f2f2;
  border-color: rgba(0, 0, 0, 0.25);
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.18);
}

.drawer-login:focus-visible {
  outline: none;
}

body.menu-open .overlay {
  opacity: 0.8;
  pointer-events: auto;
}

body.menu-open .drawer {
  right: 0;
}

body.menu-open .burger span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

body.menu-open .burger span:nth-child(2) {
  opacity: 0;
}

body.menu-open .burger span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

body.menu-open .burger {
  display: none;
}

.login-modal {
  position: fixed;
  inset: 0;
  display: none;
  padding: 24px;
  background: rgba(15, 23, 42, 0.2);
  backdrop-filter: blur(8px);
  opacity: 0;
  z-index: 140;
  transition: opacity 0.3s ease;
}

.login-modal.show {
  display: grid;
  place-items: center;
  opacity: 1;
}

.modal-content {
  background: #f8fafc;
  border: 1px solid #94a3b8;
  color: #0f172a;
  padding: 32px;
  width: min(90%, 420px);
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: stretch;
  text-align: center;
  border-radius: 4px;
  box-shadow: 0 32px 70px rgba(15, 23, 42, 0.18);
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.login-modal.show .modal-content {
  opacity: 1;
  transform: scale(1);
}

.modal-close {
  align-self: flex-end;
  width: 36px;
  height: 36px;
  border: 1px solid #94a3b8;
  background: #ffffff;
  color: #475569;
  font-size: 20px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  border-radius: 4px;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.12);
}

.modal-close:hover,
.modal-close:focus-visible {
  background: #fee2e2;
  border-color: #fca5a5;
  color: #b91c1c;
}

body.modal-open {
  overflow: hidden;
}

.modal-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-btn {
  background: #2563eb;
  color: #ffffff;
  border: 1px solid rgba(37, 99, 235, 0.45);
  padding: 12px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--transition-base), color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28);
}

.modal-btn:hover,
.modal-btn:focus-visible {
  background: #1d4ed8;
  color: #ffffff;
  border-color: rgba(29, 78, 216, 0.6);
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.45);
}

.modal-btn:focus-visible {
  outline: none;
}

.login-option {
  background: #2563eb;
  color: #ffffff;
  border: 1px solid rgba(37, 99, 235, 0.45);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28);
}

.login-option:hover,
.login-option:focus-visible {
  background: #1d4ed8;
  border-color: rgba(29, 78, 216, 0.6);
  color: #ffffff;
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.45);
  transform: translateY(-1px);
}

.login-form,
.register-form,
.forgot-password-form {
  display: none;
  text-align: left;
}

.register-step {
  text-align: left;
}

.verification-info {
  font-size: 13px;
  color: #475569;
  margin-bottom: 16px;
  text-align: center;
  padding: 12px;
  background: #f1f5f9;
  border-radius: 4px;
  border: 1px solid #e2e8f0;
}

.field {
  margin-bottom: 12px;
}

.field input,
.field textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #94a3b8;
  background: #ffffff;
  color: #0f172a;
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
}

.field input::placeholder,
.field textarea::placeholder {
  color: #94a3b8;
}

.field input:focus-visible,
.field textarea:focus-visible {
  outline: none;
  border-color: #2563eb;
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.submit {
  background: #2563eb;
  color: #ffffff;
  border: 1px solid rgba(37, 99, 235, 0.45);
  padding: 12px;
  cursor: pointer;
  width: 100%;
  border-radius: var(--radius-sm);
  transition: background var(--transition-base), color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28);
}

.back-to-login {
  background: #ffffff;
  color: #2563eb;
  border: 1px solid #2563eb;
  padding: 12px;
  cursor: pointer;
  width: 100%;
  border-radius: var(--radius-sm);
  transition: background var(--transition-base), color var(--transition-base), transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
  box-shadow: none;
}

.forgot-password-link {
  display: flex;
  justify-content: flex-end;
  margin: 12px 0 16px;
}

.forgot-password-link a {
  color: var(--color-accent);
}

.forgot-password-link a:hover {
  color: #1d4ed8;
}

.submit:hover,
.submit:focus-visible {
  background: #1d4ed8;
  border-color: rgba(29, 78, 216, 0.6);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.45);
  transform: translateY(-1px);
  color: #ffffff;
}

.back-to-login:hover,
.back-to-login:focus-visible {
  background: #f1f5f9;
  color: #002da8;
  border-color: #1d4ed8;
  transform: translateY(-1px);
  box-shadow: none;
}

.submit:focus-visible,
.back-to-login:focus-visible {
  outline: none;
}

@media (max-width: 1180px) {
  .nav-bar {
    display: flex;
    justify-content: space-between;
  }

  .nav {
    display: none;
  }

  .auth-banner {
    display: none;
  }

  .login-btn {
    display: none;
  }

  .burger {
    display: flex;
    position: static;
    transform: none;
  }
}

/* Site Info Modal (About / Terms) */
.site-info-modal {
  position: fixed;
  inset: 0;
  display: none;
  padding: 24px;
  background: rgba(15, 23, 42, 0.35);
  backdrop-filter: blur(8px);
  z-index: 150;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.site-info-modal.show {
  display: flex;
  opacity: 1;
}

.site-info-content {
  background: #ffffff;
  color: #0f172a;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  width: min(90vw, 1000px);
  height: 90vh;          /* 90% of viewport height */
  box-shadow: 0 32px 70px rgba(15, 23, 42, 0.18);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.site-info-modal.show .site-info-content {
  opacity: 1;
  transform: scale(1);
}

.site-info-close {
  margin: 12px 12px 0 auto;
}

.site-info-content h3 {
  margin: 0;
  padding: 0 24px 8px;
  border-bottom: 1px solid #e2e8f0;
  font-size: 20px;
  line-height: 1.4;
}

.site-info-body {
  padding: 16px 24px 24px;
  overflow: auto;
  flex: 1 1 auto;
}

.guide-videos-public {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.guide-video-public-card {
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 12px 14px 16px;
  background: #f8fafc;
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.12);
}

.guide-video-public-head {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 8px;
}

.guide-video-public-title {
  font-weight: 600;
  color: #0f172a;
}

.guide-video-public-meta {
  font-size: 13px;
  color: #64748b;
}

.guide-video-player {
  width: 100%;
  max-height: 360px;
  border-radius: 4px;
  background: #020617;
}

.guide-video-embed {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 6px;
  background: #020617;
  border: none;
}

.guide-video-link-wrapper {
  padding: 20px;
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
  border-radius: 6px;
  text-align: center;
}

.guide-video-link {
  display: inline-block;
  padding: 12px 24px;
  background: #2563eb;
  color: #fff;
  font-weight: 600;
  border-radius: 6px;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.2s ease;
}

.guide-video-link:hover {
  background: #1d4ed8;
  transform: translateY(-1px);
}

.guide-video-no-url {
  padding: 24px;
  background: #fef2f2;
  color: #991b1b;
  border-radius: 6px;
  text-align: center;
  font-size: 14px;
}

/* Word-like concise typography */
.site-info-body { font-size: 16px !important; line-height: 1.8; color: #0f172a; }
.site-info-body p,
.site-info-body li,
.site-info-body td,
.site-info-body th { font-size: 16px !important; }
.site-info-body h2 { margin: 16px 0 8px; font-size: 18px !important; font-weight: 600; border-bottom: 1px solid #e2e8f0; padding-bottom: 6px; }
.site-info-body h3 { margin: 14px 0 8px; font-size: 16px !important; font-weight: 600; color: #1f2937; }
.site-info-body p { margin: 0 0 12px; }
.site-info-body ul, .site-info-body ol { margin: 8px 0 12px 22px; }
.site-info-body li { margin-bottom: 6px; }


@media (max-width: 730px) {
  
}