/* =========================================================
   Agile AI University — Portal Site Styles
   INSTITUTIONAL · GOVERNANCE-ALIGNED · SAFE
   SINGLE SOURCE OF TRUTH (FINAL)
   ========================================================= */

/* =====================
   GLOBAL THEME VARIABLES
   ===================== */

:root {
  --bg: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --card: #ffffff;
  --card-muted: #f9fafb;
  --border: #e5e7eb;

  --primary: #111827;
  --secondary: #6b7280;
  --accent: #0a66c2;
  --success: #065f46;

  /* Action colors (light) */
  --action-primary-bg: #111827;
  --action-primary-text: #ffffff;
  --action-secondary-bg: #f3f4f6;
  --action-secondary-text: #1f2937;
}

/* =====================
   DARK THEME (CALIBRATED)
   ===================== */

[data-theme="dark"] {
  --bg: #0b1220;
  --text: #e5e7eb;
  --muted: #a1a1aa;
  --card: #111827;
  --card-muted: #0f172a;
  --border: #1f2937;

  --primary: #e5e7eb;
  --secondary: #9ca3af;
  --accent: #60a5fa;
  --success: #34d399;

  /* Action colors (dark) */
  --action-primary-bg: #ffffff;
  --action-primary-text: #0b1220;
  --action-secondary-bg: #1f2937;
  --action-secondary-text: #e5e7eb;
}

/* =====================
   BASE
   ===================== */

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a {
  color: var(--text);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* =====================
   LAYOUT
   ===================== */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

main {
  padding: 40px 20px;
}

/* =====================
   HEADER
   ===================== */

.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 20px;
  padding: 16px 0;
  margin: 0;
}

.nav-list li {
  position: relative;
}

.nav-list > li > a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}

/* =====================
   SUBMENUS
   ===================== */

.has-submenu > .submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--card);
  border: 1px solid var(--border);
  min-width: 240px;
  padding: 8px 0;
  z-index: 1000;
}

.has-submenu:hover > .submenu {
  display: block;
}

.submenu a {
  display: block;
  padding: 8px 14px;
  font-size: 13px;
  color: var(--text);
}

.submenu a:hover {
  background: var(--card-muted);
}

/* =====================
   MOBILE NAV
   ===================== */

.hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  color: var(--text);
}

@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    border-top: 1px solid var(--border);
  }

  .nav-list.mobile-open {
    display: flex;
  }

  .has-submenu > .submenu {
    position: static;
    border: none;
  }
}

/* =====================
   TYPOGRAPHY
   ===================== */

h1, h2, h3, h4, h5 {
  color: var(--text);
}

/* =====================
   BUTTONS (GLOBAL)
   ===================== */

.btn {
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  line-height: 1;
  transition: background 0.15s ease, border-color 0.15s ease;
}

/* Primary */
.btn.primary {
  background: var(--action-primary-bg);
  color: var(--action-primary-text);
  border-color: var(--action-primary-bg);
}

/* Secondary */
.btn.secondary {
  background: var(--action-secondary-bg);
  color: var(--action-secondary-text);
  border: 1px solid var(--border);
}

/* =====================
   PORTAL ASSERTIONS
   ===================== */

.portal-assertion {
  background: var(--card-muted);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: 10px;
  padding: 16px 18px;
  margin-top: 20px;
}

/* =====================
   SECTIONS
   ===================== */

.section {
  margin-top: 32px;
  max-width: 760px;
}

/* =====================
   CREDENTIAL GRID
   ===================== */

.credentials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 14px;
}

/* =====================
   CREDENTIAL CARD (FINAL FIX)
   ===================== */

.credential-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);

  /* 🔒 OPTION-1: Equal-height card normalization */
  display: flex;
  flex-direction: column;
}

[data-theme="dark"] .credential-card {
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.45);
}

/* Badge */
.credential-badge {
  display: inline-block;
  margin-bottom: 10px;
  padding: 4px 10px;
  font-size: 0.75rem;
  border-radius: 20px;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--accent);
}

/* Meta text */
.credential-meta {
  font-size: 13px;
  color: var(--muted);
}

.credential-validity strong {
  color: var(--success);
}

/* =====================
   🔒 HARD BUTTON FIX (MARKUP-AGNOSTIC)
   ===================== */

/* Force buttons onto their own row */
.credential-card .btn {
  display: inline-flex;
  align-items: center;
  margin-top: 14px;
  margin-right: 10px;
  white-space: nowrap;
}

/* Anchor actions to bottom for equal-height cards */
.credential-actions {
  margin-top: auto;
}

/* Prevent text collision */
.credential-card p {
  clear: both;
}

/* =====================
   FOOTER
   ===================== */

footer {
  margin-top: 60px;
  padding: 30px 20px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
  background: var(--bg);
}

/* =====================
   THEME TOGGLE
   ===================== */

.theme-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  padding: 6px 8px;
  border-radius: 6px;
  color: var(--text);
}

.theme-toggle:hover {
  background: rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .theme-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* =====================
   VISIBILITY
   ===================== */

.hidden {
  display: none !important;
}

/* =========================================================
   CREDENTIAL BADGE — CONTEXT-CORRECT UX ENHANCEMENT
   SAFE ADDITIVE EXTENSION (PORTAL ONLY)
   ========================================================= */

/* Tooltip on hover (screen only) */
.credential-badge[title] {
  position: relative;
  cursor: help;
}

@media (hover: hover) {
  .credential-badge[title]::after {
    content: attr(title);
    position: absolute;
    left: 0;
    top: 120%;
    white-space: nowrap;
    background: var(--text);
    color: var(--bg);
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 12px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-4px);
    transition: opacity 0.15s ease, transform 0.15s ease;
    z-index: 20;
  }

  .credential-badge[title]:hover::after {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Print / PDF: expand badge meaning explicitly */
@media print {
  .credential-badge[title]::after {
    content: " — " attr(title);
    position: static;
    opacity: 1;
    background: none;
    color: var(--text);
    padding: 0;
    font-size: 13px;
  }
}

/* =========================================================
   🧾 PRINT / PDF AUDIT — CREDENTIAL CARD INTEGRITY
   GOVERNANCE-SAFE · NON-INTERACTIVE · AUTHORITATIVE
   ========================================================= */

@media print {

  /* -----------------------------------------
     Force neutral light theme for print
     ----------------------------------------- */
  :root,
  [data-theme="dark"] {
    --bg: #ffffff;
    --text: #000000;
    --muted: #333333;
    --card: #ffffff;
    --card-muted: #ffffff;
    --border: #cccccc;

    --primary: #000000;
    --secondary: #000000;
    --accent: #000000;
    --success: #000000;

    --action-primary-bg: transparent;
    --action-primary-text: #000000;
    --action-secondary-bg: transparent;
    --action-secondary-text: #000000;
  }

  body {
    background: #ffffff !important;
    color: #000000 !important;
  }

  /* -----------------------------------------
     Expand badge meaning explicitly
     (no hover dependency)
     ----------------------------------------- */
  .credential-badge[title]::after {
    content: " — " attr(title);
    position: static;
    display: inline;
    opacity: 1;
    background: none;
    color: #000000;
    padding: 0;
    margin-left: 4px;
    font-size: 12px;
    font-weight: normal;
  }

  /* -----------------------------------------
     Remove visual interactivity from buttons
     ----------------------------------------- */
  .credential-card .btn {
    background: none !important;
    border: 1px solid #000000 !important;
    color: #000000 !important;
    box-shadow: none !important;
    cursor: default !important;
    pointer-events: none !important;
    text-decoration: none !important;
  }

  /* -----------------------------------------
     Show verification URL explicitly
     ----------------------------------------- */
  .credential-card a[href]::after {
    content: " (" attr(href) ")";
    font-size: 11px;
    word-break: break-all;
  }

  /* -----------------------------------------
     Preserve card structure & spacing
     ----------------------------------------- */
  .credential-card {
    page-break-inside: avoid;
    break-inside: avoid;
    box-shadow: none !important;
  }

  .credentials-grid {
    display: block;
  }

  .credential-card + .credential-card {
    margin-top: 20px;
  }

  /* -----------------------------------------
     Hide non-essential UI chrome
     ----------------------------------------- */
  header,
  footer,
  .theme-toggle,
  .hamburger,
  nav {
    display: none !important;
  }
}