/**
 * Calvin shell layout — top LTR chrome + hover dropdowns.
 * Does not change app logic; only presentation of existing markup.
 */

/* ---------- Public header: Calvin top bar ---------- */
.site-header {
  background: #151515 !important;
  border-bottom: none !important;
  box-shadow: none !important;
}
.site-header .brand,
.site-header .brand .brand-name,
.site-header .nav-link,
.site-header .nav a,
.site-header .nav-quiet,
.site-header .link-btn {
  color: #fff !important;
}
.site-header .brand .brand-e { color: #C1292E !important; }
.site-header .brand .brand-tld { color: rgba(255,255,255,.55) !important; }
.site-header .nav a:hover,
.site-header .nav-link:hover,
.site-header .link-btn:hover {
  color: rgba(255,255,255,.75) !important;
  transform: none !important;
}
.site-header .header-inner {
  max-width: 1400px;
  width: min(1400px, calc(100% - 48px));
  margin: 0 auto;
  padding: 0;
  min-height: 72px;
}
.site-header .brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.site-header .nav .btn {
  background: #fff !important;
  color: #000 !important;
  border: 0.2rem solid #fff !important;
}
.site-header .nav .btn:hover {
  background: transparent !important;
  color: #fff !important;
  border-color: #fff !important;
}
.site-header .nav-toggle span { background: #fff; }
.site-header .nav-toggle { border-color: rgba(255,255,255,.25); background: transparent; }

.site-body main { background: #fff; }
.site-footer { background: #eff0f0 !important; }

/* Public content: wide LTR bricks */
.container {
  width: min(1200px, calc(100% - 48px)) !important;
}
.why-grid,
.seo-learning-grid,
.steps-grid,
.steps-modern,
.feature-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)) !important;
  gap: 0 !important;
  border-top: 1px solid #eee;
  border-left: 1px solid #eee;
}
.why-card,
.seo-learning-card,
.step-card,
.feature-card {
  border-radius: 0 !important;
  border: 1px solid #eee !important;
  border-top: none !important;
  border-left: none !important;
  box-shadow: none !important;
  margin: 0 !important;
  background: #fff !important;
  transition: background .3s ease-in-out !important;
}
.why-card:hover,
.seo-learning-card:hover,
.step-card:hover,
.feature-card:hover {
  background: #eff0f0 !important;
  transform: none !important;
  border-color: #eee !important;
}

/* ---------- Admin / parent: top horizontal shell ---------- */
@media (min-width: 961px) {
  .panel-body {
    display: flex !important;
    flex-direction: column !important;
    grid-template-columns: none !important;
    min-height: 100vh;
    background: #eff0f0;
  }

  .panel-body > .admin-mobile-bar,
  .panel-body > .admin-sidebar-overlay {
    display: none !important;
  }

  .panel-body > .sidebar {
    position: sticky !important;
    top: 0;
    z-index: 200;
    left: auto !important;
    width: 100% !important;
    max-width: none !important;
    height: auto !important;
    max-height: none !important;
    min-height: 72px;
    display: flex !important;
    flex-direction: row !important;
    align-items: stretch !important;
    gap: 8px !important;
    padding: 0 20px !important;
    overflow: visible !important;
    background: #151515 !important;
    border-right: none !important;
    border-bottom: 1px solid rgba(255,255,255,.06);
    box-shadow: none !important;
  }

  .sidebar-head {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    padding: 0 12px 0 0;
    margin: 0;
  }
  .sidebar-close-btn { display: none !important; }
  .sidebar .brand {
    color: #fff !important;
    font-family: "DM Serif Display", "DM Serif Text", Georgia, serif !important;
    font-weight: 400 !important;
    display: inline-flex;
    align-items: center;
    gap: 10px;
  }
  .sidebar .brand .brand-name { color: #fff !important; }
  .sidebar .brand .brand-e { color: #C1292E !important; }
  .sidebar .brand .brand-tld { color: rgba(255,255,255,.5) !important; }
  .sidebar .brand-admin {
    color: rgba(255,255,255,.45) !important;
    letter-spacing: .18em;
  }

  .sidebar nav {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap;
    align-items: stretch;
    gap: 0 !important;
    flex: 1 1 auto;
    min-width: 0;
    /* overflow-x:auto clips dropdowns in browsers — keep fully visible */
    overflow: visible !important;
  }

  /* Top-level links */
  .sidebar nav > a {
    display: inline-flex !important;
    align-items: center;
    white-space: nowrap;
    height: 72px;
    padding: 0 14px !important;
    margin: 0 !important;
    border-radius: 0 !important;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    color: #fff !important;
    font-weight: 600;
    font-size: 14px;
    line-height: 1.2;
    transition: color .3s ease-in-out, background .3s ease-in-out !important;
  }
  .sidebar nav > a:hover,
  .sidebar nav > a.active {
    background: transparent !important;
    color: rgba(255,255,255,.75) !important;
    transform: none !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }
  .sidebar nav > a::before,
  .sidebar nav > a::after {
    display: none !important;
  }

  /* Dropdown groups — Calvin hover open */
  .sidebar-group {
    position: relative !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
    border-radius: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    display: block !important;
    flex: 0 0 auto;
  }
  .sidebar-group:hover,
  .sidebar-group.is-open,
  .sidebar-group.is-open > .sidebar-group-toggle {
    background: transparent !important;
    box-shadow: none !important;
    border: none !important;
    color: #fff !important;
  }
  .sidebar-group-toggle {
    height: 72px;
    padding: 0 18px 0 14px !important;
    border-radius: 0 !important;
    background: transparent !important;
    color: #fff !important;
    font-size: 14px !important;
    font-weight: 600 !important;
    white-space: nowrap;
    transform: none !important;
    text-shadow: none !important;
    overflow: visible !important;
  }
  .sidebar-group-toggle:hover,
  .sidebar-group:hover > .sidebar-group-toggle {
    background: transparent !important;
    color: rgba(255,255,255,.8) !important;
    transform: none !important;
    text-shadow: none !important;
  }
  .sidebar-group-toggle::after {
    content: "" !important;
    position: absolute !important;
    inset: auto !important;
    right: 6px !important;
    top: 50% !important;
    width: 5px !important;
    height: 5px !important;
    margin-top: -3px;
    border: none !important;
    border-bottom: 1px solid #fff !important;
    border-right: 1px solid #fff !important;
    background: transparent !important;
    transform: rotate(45deg) !important;
    transition: transform .3s !important;
    opacity: 1 !important;
  }
  .sidebar-group:hover > .sidebar-group-toggle::after,
  .sidebar-group:focus-within > .sidebar-group-toggle::after {
    transform: rotate(225deg) !important;
  }
  .sidebar-group-toggle > span { position: relative; z-index: 1; }
  .sidebar-group-chevron { display: none !important; }

  .sidebar-group-links {
    position: absolute !important;
    top: 100%;
    left: 0;
    z-index: 4000 !important;
    min-width: 260px;
    width: max-content;
    max-width: min(360px, 90vw);
    margin: 0 !important;
    padding: 12px 0 !important;
    background: #222222 !important;
    border: none !important;
    border-radius: 0 0 4px 4px !important;
    box-shadow: 0 12px 28px rgba(0,0,0,.28);
    flex-direction: column !important;
    gap: 0 !important;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translate3d(0, 12px, 0);
    transition: opacity .35s ease, transform .35s ease, visibility .35s;
  }
  /* Beat app.css [hidden]{display:none} and HTML hidden attribute */
  .sidebar-group-links,
  .sidebar-group-links[hidden] {
    display: flex !important;
  }
  .sidebar-group:hover > .sidebar-group-links,
  .sidebar-group:focus-within > .sidebar-group-links,
  .sidebar-group.is-hover > .sidebar-group-links {
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    transform: translate3d(0, 0, 0) !important;
  }
  .sidebar-group a {
    display: block !important;
    width: 100% !important;
    padding: .7rem 2rem .7rem 1.4rem !important;
    margin: 0 !important;
    border-radius: 0 !important;
    background: transparent !important;
    border: none !important;
    color: rgba(255,255,255,.7) !important;
    font-weight: 400 !important;
    font-size: 14px !important;
    white-space: nowrap;
    box-shadow: none !important;
    transform: none !important;
    text-shadow: none !important;
  }
  .sidebar-group a::before,
  .sidebar-group a::after {
    display: none !important;
  }
  .sidebar-group a:hover,
  .sidebar-group a.active {
    color: #fff !important;
    background: transparent !important;
    transform: none !important;
    box-shadow: none !important;
  }

  .sidebar-foot {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
    flex-shrink: 0;
    border-top: none !important;
    padding: 0 0 0 12px !important;
  }
  .sidebar-foot .sidebar-logout button,
  .panel-top-logout button {
    background: transparent;
    border: 1px solid rgba(255,255,255,.35);
    color: #fff;
    padding: 8px 14px;
    border-radius: 0;
    text-transform: uppercase;
    letter-spacing: .18em;
    font-size: 11px;
    cursor: pointer;
    transition: all .3s;
  }
  .sidebar-foot .sidebar-logout button:hover,
  .panel-top-logout button:hover {
    background: #fff;
    color: #000;
  }

  .sidebar-nav-home {
    flex-direction: column !important;
    align-items: flex-start !important;
    justify-content: center !important;
    gap: 2px !important;
  }
  .sidebar-nav-hint {
    display: none !important;
  }

  .panel-body > .panel-main {
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 20px 0 48px;
    background: #eff0f0;
    box-sizing: border-box;
  }
  .panel-top {
    background: #fff !important;
    border: 1px solid #eee !important;
    border-radius: 0 !important;
    margin: 0 auto 16px !important;
    padding: 18px 22px !important;
    width: min(1100px, calc(100% - 40px)) !important;
    max-width: 1100px !important;
    box-sizing: border-box !important;
  }
  .panel-top h1 {
    font-family: "DM Serif Text", Georgia, serif !important;
    font-weight: 400 !important;
    letter-spacing: -.01em;
  }
  .panel-body .panel-main > .page,
  .panel-body .panel-main > .flash,
  .panel-body .panel-main > .import-report {
    width: min(1100px, calc(100% - 40px)) !important;
    max-width: 1100px !important;
    margin-left: auto !important;
    margin-right: auto !important;
    box-sizing: border-box !important;
  }
  .panel-body .panel-main > .flash {
    margin-top: 0;
    margin-bottom: 12px;
  }
  .panel-body .panel-main > .page {
    margin-top: 0;
    background: #fff;
    border: 1px solid #eee;
    padding: 24px;
  }
  .dashboard-page {
    border: 1px solid #eee !important;
    border-radius: 0 !important;
    background: #fff !important;
  }
}

@media (min-width: 961px) {
  .panel-calvin .sidebar,
  .panel-calvin .sidebar nav,
  .panel-calvin .sidebar-group {
    overflow: visible !important;
  }
  .panel-calvin .sidebar-group-links,
  .panel-calvin .sidebar-group-links[hidden] {
    display: flex !important;
  }
}

/* Mobile: keep drawer, but Calvin dark + sharp */
@media (max-width: 960px) {
  .admin-mobile-bar {
    background: #151515 !important;
    box-shadow: none !important;
  }
  .sidebar {
    background: #151515 !important;
  }
  .sidebar-group {
    border-radius: 0 !important;
  }
  .panel-calvin .sidebar-group-links[hidden],
  .sidebar-group-links[hidden] {
    display: none !important;
  }

  .panel-body > .panel-main {
    padding: 14px 0 36px !important;
    width: 100% !important;
    max-width: 100% !important;
  }
  .panel-body .panel-main > .panel-top,
  .panel-body .panel-main > .page,
  .panel-body .panel-main > .flash,
  .panel-body .panel-main > .import-report {
    width: calc(100% - 24px) !important;
    max-width: 100% !important;
    margin-left: auto !important;
    margin-right: auto !important;
  }
  .panel-body .panel-main > .page {
    padding: 16px 14px !important;
  }
  .panel-top {
    flex-wrap: wrap;
    gap: 10px;
  }
  .table-scroll,
  .table {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .filter-bar,
  .page-actions,
  .form-card,
  .grid-2,
  .grid-3 {
    max-width: 100%;
  }
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 720px) {
  .site-header .header-inner {
    width: calc(100% - 24px);
  }
  .container {
    width: calc(100% - 24px) !important;
  }
  .why-grid,
  .seo-learning-grid,
  .steps-modern,
  .feature-grid {
    grid-template-columns: 1fr !important;
  }
  .dashboard-page .stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }
  .panel-top-right {
    width: 100%;
    align-items: flex-start !important;
  }
  .auth-card {
    width: calc(100% - 24px) !important;
    padding: 22px 16px !important;
  }
}

/* Test dual AI crop layout */
.ai-test-dual-hint { margin: 10px 0; }
.ai-test-zone-title {
  margin: 18px 0 8px;
  font-family: var(--display, inherit);
  font-size: 1.05rem;
  font-weight: 600;
  border-bottom: 1px solid var(--line, #eee);
  padding-bottom: 6px;
}
.ai-test-page-preview {
  margin: 10px 0 14px;
  padding: 10px;
  border: 1px solid var(--line, #eee);
  background: #fafafa;
}
.ai-test-page-preview img {
  display: block;
  max-width: 100%;
  max-height: 280px;
  margin-top: 8px;
  object-fit: contain;
}
.ai-rich-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 6px 0;
}
@media (min-width: 961px) {
  .panel-calvin .panel-main > .panel-top,
  .panel-calvin .panel-main > .page,
  .panel-calvin .panel-main > .flash,
  .panel-calvin .panel-main > .import-report {
    width: min(1100px, calc(100% - 40px)) !important;
    max-width: 1100px !important;
  }
}
@media (max-width: 960px) {
  .panel-calvin .panel-main > .panel-top,
  .panel-calvin .panel-main > .page,
  .panel-calvin .panel-main > .flash,
  .panel-calvin .panel-main > .import-report {
    width: calc(100% - 24px) !important;
    max-width: 100% !important;
  }
}

/* 2026 premium interaction restore */
.sidebar nav > a:hover,
.sidebar nav > a.active,
.sidebar-group:hover,
.sidebar-group.is-open,
.sidebar-group.is-hover {
  transform: translateX(4px) !important;
  box-shadow: 0 14px 28px rgba(17, 24, 39, .18) !important;
}

.sidebar-group:hover > .sidebar-group-toggle,
.sidebar-group.is-open > .sidebar-group-toggle,
.sidebar-group.is-hover > .sidebar-group-toggle {
  transform: translateX(4px) !important;
}

.sidebar-group-links {
  border-radius: 18px !important;
}

.why-card:hover,
.seo-learning-card:hover,
.step-card:hover,
.feature-card:hover,
.exam-hub-card:hover,
.child-row:hover,
.cta-panel:hover,
.stat:hover,
.ai-review-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: 0 18px 38px rgba(15, 23, 42, .12) !important;
}

.site-header .nav .btn:hover,
.btn:hover,
.btn:focus {
  transform: translateY(-2px) !important;
  box-shadow: 0 16px 30px rgba(15, 23, 42, .16) !important;
}