/* ============================================================
   Productivity Habits — Lernplattform
   Page-specific styles. Builds on assets/site.css (shared tokens +
   components). Do not redefine tokens here — add to site.css if a
   new token is truly needed everywhere.
   ============================================================ */

/* ----------------------------------------------------------
   Password gate — full-screen overlay shown until the correct
   password is entered. Removed from the DOM flow (display:none)
   once unlocked, so it never affects layout or scroll.
   ---------------------------------------------------------- */
.gate {
  position: fixed; inset: 0; z-index: 500;
  display: flex; align-items: center; justify-content: center;
  background: var(--blue-authoritarian); color: var(--on-dark);
  padding: var(--space-5);
}
.gate[hidden] { display: none; }
.gate-card {
  width: 100%; max-width: 380px;
  padding: var(--space-8) var(--space-6);
  text-align: center;
}
.gate-card svg { height: 34px; width: auto; margin-inline: auto; margin-bottom: var(--space-6); }
.gate-card h1 { font-size: var(--text-xl); line-height: var(--leading-snug); margin-bottom: var(--space-2); }
.gate-card p.lead { font-size: var(--text-base); margin: 0 0 var(--space-6); color: var(--on-dark-muted); }
.gate-form { display: flex; flex-direction: column; gap: var(--space-4); }
.gate-input {
  width: 100%; padding: 14px 16px; border-radius: var(--radius-md);
  border: 1px solid var(--line-dark); background: rgba(255,255,255,.06);
  color: var(--on-dark); font-size: var(--text-base); text-align: center;
  letter-spacing: .08em;
}
.gate-input::placeholder { color: var(--on-dark-faint); letter-spacing: normal; }
.gate-input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.gate-form .btn { justify-content: center; }
.gate-error {
  font-size: var(--text-sm); color: var(--tile); min-height: 1.2em; margin: 0;
}
.gate-error[hidden] { visibility: hidden; }

/* ----------------------------------------------------------
   Static bilingual text blocks — wrap German copy in .lang-de,
   English copy in .lang-en; body.lang-is-de / .lang-is-en (set by
   lernplattform.js) decides which one is visible.
   ---------------------------------------------------------- */
body.lang-is-de .lang-en { display: none; }
body.lang-is-en .lang-de { display: none; }

/* ----------------------------------------------------------
   Language switch — a full-width bar above everything else,
   deliberately more prominent than the small nav-level toggle
   used on the main site.
   ---------------------------------------------------------- */
.langbar {
  position: sticky; top: 0; z-index: 110; height: 52px;
  background: var(--accent-ink); color: var(--white);
  padding: 0 var(--pad);
  display: flex; align-items: center;
}
.langbar-inner {
  width: 100%; max-width: var(--maxw); margin-inline: auto;
  display: flex; align-items: center; justify-content: center; gap: var(--space-3);
}
.langbar-label { font-size: var(--text-sm); font-weight: 500; opacity: .9; margin-right: var(--space-2); }
.langbtn {
  border: 1px solid rgba(255,255,255,.4); background: transparent; color: var(--white);
  font-size: var(--text-sm); font-weight: 700; letter-spacing: .04em;
  padding: 6px 16px; border-radius: var(--radius-pill); cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.langbtn:hover { border-color: var(--white); }
.langbtn.active { background: var(--white); color: var(--accent-ink); border-color: var(--white); }
.langbtn:focus-visible { outline: 2px solid var(--white); outline-offset: 2px; }

/* the fixed .nav sits below the langbar, not at the very top */
body.has-langbar .nav { top: 52px; }
html { scroll-padding-top: 148px; }

/* this page's nav has no hamburger/mobile panel (just one link) — keep it visible */
@media (max-width: 1024px) {
  .navgroup .btn { display: inline-flex; }
  .nav-toggle { display: none; }
}
@media (max-width: 460px) {
  .navgroup { gap: var(--space-3); }
  .navgroup > span { display: none; }
}

/* ----------------------------------------------------------
   Section sub-nav — quick jump to the three blocks
   ---------------------------------------------------------- */
.lp-subnav { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-6); }
.lp-subnav a {
  font-size: var(--text-sm); font-weight: 600; padding: 8px 16px;
  border: 1px solid var(--line-dark); border-radius: var(--radius-pill); color: var(--on-dark-muted);
  transition: border-color .15s ease, color .15s ease;
}
.lp-subnav a:hover { border-color: var(--accent); color: var(--on-dark); }

/* ----------------------------------------------------------
   Material cards
   ---------------------------------------------------------- */
.material-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); margin-top: var(--space-7); }
.mcard {
  display: flex; flex-direction: column; gap: var(--space-3); padding: var(--space-6);
  border: 1px solid var(--line-light); border-radius: var(--radius-lg); background: var(--white);
  transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}
.mcard:hover { border-color: var(--accent-ink); transform: translateY(-2px); box-shadow: 0 18px 40px -26px rgba(12,31,45,.4); }
.mcard .mc-kicker { font-size: var(--text-eyebrow); letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; font-weight: 600; color: var(--accent-ink); }
.mcard h3 { font-size: var(--text-lg); line-height: var(--leading-snug); margin: 0; }
.mcard .mc-go { margin-top: auto; display: inline-flex; align-items: center; gap: .45em; color: var(--accent-ink); font-weight: 600; font-size: var(--text-sm); }
.mcard .mc-go .arr { transition: transform .18s ease; }
.mcard:hover .mc-go .arr { transform: translateX(5px); }
.mcard.missing { opacity: .55; }
.mcard.missing .mc-go { color: var(--ink-faint); }
@media (max-width: 860px) { .material-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .material-grid { grid-template-columns: 1fr; } }

/* ----------------------------------------------------------
   Video / link cards
   ---------------------------------------------------------- */
.video-section + .video-section { margin-top: var(--space-8); }
.video-section h3 { font-size: var(--text-xl); margin-bottom: var(--space-5); }
.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.vcard { display: block; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line-dark); background: rgba(255,255,255,.03); transition: border-color .15s ease, transform .15s ease; }
.vcard:hover { border-color: var(--accent); transform: translateY(-2px); }
.vcard .thumb { position: relative; aspect-ratio: 16/9; background: var(--blue-supportive); overflow: hidden; }
.vcard .thumb img { width: 100%; height: 100%; object-fit: cover; }
.vcard .thumb::after {
  content: ""; position: absolute; inset: 0; margin: auto; width: 46px; height: 46px; border-radius: 50%;
  background: rgba(2,5,16,.55); border: 1px solid rgba(255,255,255,.6);
}
.vcard .thumb::before {
  content: ""; position: absolute; z-index: 1; top: 50%; left: 50%;
  transform: translate(-42%, -50%); border-style: solid; border-width: 8px 0 8px 13px;
  border-color: transparent transparent transparent var(--white);
}
.vcard .vc-body { padding: var(--space-4) var(--space-5) var(--space-5); }
.vcard .vc-title { font-size: var(--text-base); font-weight: 600; color: var(--on-dark); line-height: 1.4; }
@media (max-width: 860px) { .video-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .video-grid { grid-template-columns: 1fr; } }

/* small language badge on mixed-language sections */
.lang-badge {
  display: inline-block; font-size: .625rem; letter-spacing: .08em; text-transform: uppercase;
  font-weight: 700; padding: 2px 8px; border-radius: var(--radius-pill);
  background: rgba(255,255,255,.1); color: var(--on-dark-faint); margin-bottom: var(--space-2);
}
.lang-badge.inline { margin-bottom: 0; margin-right: var(--space-3); vertical-align: middle; }
.linklist .lang-badge.inline { background: var(--paper); color: var(--ink-faint); }

/* related/plain link cards (no thumbnail) */
.linklist { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-5); }
.linklist a {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  padding: var(--space-5) var(--space-6); border: 1px solid var(--line-light); border-radius: var(--radius-lg);
  background: var(--white); font-weight: 600; color: var(--ink); transition: border-color .15s ease, transform .15s ease;
}
.linklist a:hover { border-color: var(--accent-ink); transform: translateY(-2px); }
.linklist a .arr { color: var(--accent-ink); }