/* ============================================================
   ScherCore Lernportal – gemeinsames Design für alle Seiten
   Theme-System: mehrere Farbschemen über [data-theme] auf <html>
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Space+Grotesk:wght@600;700&display=swap');

:root{
  /* ---- Theme: warm (Standard) ---- */
  --core-bg:#F3EEE3;
  --core-surface:#FFFFFF;
  --core-surface-alt:#FBF8F2;
  --core-ink:#1B1B18;
  --core-ink-soft:#6B6459;
  --core-border:#E4DDCE;
  --core-navy:#16233D;
  --core-navy-soft:#223252;
  --core-accent:#C1652F;
  --core-accent-hover:#A4501F;
  --core-accent-soft:rgba(193,101,47,0.12);

  /* Feste Semantik-Farben (unabhängig vom Theme) */
  --good:#1E8E5A;
  --bad:#D23B3B;
}

:root[data-theme="midnight"]{
  --core-bg:#0B0E14;
  --core-surface:#141922;
  --core-surface-alt:#1B212C;
  --core-ink:#F1F3F7;
  --core-ink-soft:#9AA3B2;
  --core-border:#2A3140;
  --core-navy:#05070B;
  --core-navy-soft:#10151E;
  --core-accent:#5EA8FF;
  --core-accent-hover:#3D8DE8;
  --core-accent-soft:rgba(94,168,255,0.15);
}

:root[data-theme="ocean"]{
  --core-bg:#EEF5F6;
  --core-surface:#FFFFFF;
  --core-surface-alt:#E3EEF0;
  --core-ink:#142A2E;
  --core-ink-soft:#587075;
  --core-border:#CFE1E3;
  --core-navy:#0E2E38;
  --core-navy-soft:#163E4A;
  --core-accent:#1D7A8C;
  --core-accent-hover:#14606F;
  --core-accent-soft:rgba(29,122,140,0.12);
}

:root[data-theme="sunset"]{
  --core-bg:#FBEFE7;
  --core-surface:#FFFFFF;
  --core-surface-alt:#F7E2D5;
  --core-ink:#2B1B14;
  --core-ink-soft:#8A6A57;
  --core-border:#EED9C8;
  --core-navy:#3A1F1B;
  --core-navy-soft:#4E2C24;
  --core-accent:#FF6B4A;
  --core-accent-hover:#E5522F;
  --core-accent-soft:rgba(255,107,74,0.14);
}

:root[data-theme="forest"]{
  --core-bg:#EEF3EC;
  --core-surface:#FFFFFF;
  --core-surface-alt:#E1EAE0;
  --core-ink:#16241A;
  --core-ink-soft:#5C6E5D;
  --core-border:#D6E2D3;
  --core-navy:#1B2E1F;
  --core-navy-soft:#24402A;
  --core-accent:#2F6B4F;
  --core-accent-hover:#22553D;
  --core-accent-soft:rgba(47,107,79,0.13);
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background:var(--core-bg);
  color:var(--core-ink);
  min-height:100vh;
  transition:background .2s ease, color .2s ease;
}

a{color:inherit;}
h1,h2,h3{ font-family:'Space Grotesk', 'Inter', sans-serif; }

/* ---------- App-Bar (auf allen Seiten) ---------- */
.app-bar{
  background:var(--core-navy);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:12px 24px;
  gap:16px;
  flex-wrap:wrap;
  position:sticky;
  top:0;
  z-index:100;
  box-shadow:0 2px 12px rgba(0,0,0,0.25);
}

.app-bar-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-family:'Space Grotesk', sans-serif;
  font-size:15px;
  letter-spacing:0.3px;
  white-space:nowrap;
}

.app-bar-brand .mark{
  width:26px;
  height:26px;
  background:var(--core-accent);
  border-radius:8px;
  position:relative;
  flex-shrink:0;
}
.app-bar-brand .mark::before{
  content:'';
  position:absolute;
  top:50%; left:50%;
  width:9px; height:9px;
  background:#fff;
  border-radius:50%;
  transform:translate(-50%,-50%);
}

.app-bar-nav{
  display:flex;
  align-items:center;
  gap:4px;
  flex-wrap:wrap;
}

.app-bar-nav a{
  text-decoration:none;
  color:#cbd5e1;
  font-size:13px;
  font-weight:600;
  padding:8px 12px;
  border-radius:8px;
  transition:all .15s;
  white-space:nowrap;
  display:inline-flex;
  align-items:center;
  gap:7px;
}
.app-bar-nav a .nav-icon{ font-size:14px; line-height:1; }
.app-bar-nav a:hover{ background:rgba(255,255,255,0.1); color:#fff; }
.app-bar-nav a.active{ background:var(--core-accent); color:#fff; box-shadow:0 2px 8px rgba(0,0,0,0.25); }
.app-bar-nav a.external{ color:#f0c987; }

.nav-divider{
  width:1px;
  height:22px;
  background:rgba(255,255,255,0.16);
  margin:0 8px;
  flex-shrink:0;
}
@media (max-width:640px){ .nav-divider{ display:none; } }

.app-bar-nav button{
  background:transparent;
  border:1px solid rgba(255,255,255,0.3);
  color:#fff;
  font-size:12px;
  font-weight:700;
  padding:7px 14px;
  border-radius:8px;
  cursor:pointer;
  text-transform:uppercase;
  letter-spacing:0.4px;
  transition:all .15s;
  margin-left:6px;
}
.app-bar-nav button:hover{ background:var(--core-accent); border-color:var(--core-accent); }

/* ---------- Theme switcher ---------- */
.theme-switcher{
  display:flex;
  align-items:center;
  gap:6px;
  padding:4px 8px;
  border-radius:20px;
  background:rgba(255,255,255,0.06);
  margin-left:4px;
}
.theme-switcher button{
  width:18px; height:18px;
  border-radius:50%;
  border:2px solid rgba(255,255,255,0.25);
  cursor:pointer;
  padding:0;
  margin:0;
  transition:transform .15s, border-color .15s;
}
.theme-switcher button:hover{ transform:scale(1.15); }
.theme-switcher button.active{ border-color:#fff; }

/* ---------- Generic page container ---------- */
.page{
  max-width:1100px;
  margin:0 auto;
  padding:28px 20px 60px;
}

.page-head{ margin-bottom:24px; }
.page-head h1{
  font-size:26px;
  font-weight:700;
  margin:0 0 6px;
}
.page-head p{ margin:0; color:var(--core-ink-soft); font-size:14px; }

/* ---------- Card grid (Dashboard) ---------- */
.tool-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(240px, 1fr));
  gap:18px;
  margin-top:10px;
}

.tool-card{
  background:var(--core-surface);
  border:1px solid var(--core-border);
  border-radius:16px;
  padding:24px;
  text-decoration:none;
  color:var(--core-ink);
  display:flex;
  flex-direction:column;
  gap:10px;
  transition:transform .15s, box-shadow .15s, border-color .15s;
  position:relative;
  overflow:hidden;
}
.tool-card:hover{
  transform:translateY(-3px);
  box-shadow:0 12px 24px -8px rgba(0,0,0,0.18);
  border-color:var(--core-accent);
}
.tool-card .icon{ font-size:32px; }
.tool-card h3{ margin:0; font-size:17px; font-weight:700; }
.tool-card p{ margin:0; font-size:13px; color:var(--core-ink-soft); line-height:1.5; }
.tool-card .tag{
  position:absolute; top:16px; right:16px;
  font-size:10px; font-weight:800; text-transform:uppercase;
  letter-spacing:0.5px; color:var(--core-accent);
  background:var(--core-accent-soft);
  padding:3px 8px; border-radius:20px;
}
.tool-card.external{ border-style:dashed; }
.tool-card.external .tag{ color:#c68a2e; background:rgba(198,138,46,0.12); }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 20px;
  border-radius:10px;
  border:none;
  font-weight:800;
  font-size:13px;
  text-transform:uppercase;
  letter-spacing:0.5px;
  cursor:pointer;
  transition:all .15s;
  text-decoration:none;
}
.btn-primary{ background:var(--core-accent); color:#fff; }
.btn-primary:hover{ background:var(--core-accent-hover); }
.btn-secondary{ background:var(--core-surface-alt); color:var(--core-ink); border:1px solid var(--core-border); }
.btn-secondary:hover{ background:var(--core-border); }

/* ---------- Footer ---------- */
.site-footer{
  text-align:center;
  padding:24px 20px 40px;
  font-size:12.5px;
  color:var(--core-ink-soft);
}
.site-footer a{
  color:var(--core-accent);
  font-weight:700;
  text-decoration:none;
}
.site-footer a:hover{ text-decoration:underline; }

@media (max-width:640px){
  .app-bar{ padding:10px 14px; }
  .app-bar-nav{ gap:2px; }
  .app-bar-nav a{ padding:7px 9px; font-size:12px; }
}

/* ---------- Mobile Hamburger-Navigation ---------- */
.nav-toggle{
  display:none;
  background:rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.2);
  color:#fff;
  width:40px; height:40px;
  border-radius:10px;
  font-size:18px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
}

@media (max-width:900px){
  .nav-toggle{ display:flex; }
  .app-bar{ position:sticky; }
  .app-bar-search{ order:3; flex-basis:100%; }
  .app-bar-nav{
    display:none;
    flex-direction:column;
    align-items:stretch;
    width:100%;
    gap:2px;
    background:var(--core-navy-soft);
    border-radius:12px;
    padding:10px;
    margin-top:8px;
    order:4;
  }
  .app-bar-nav.open{ display:flex; }
  .app-bar-nav a, .app-bar-nav button{ width:100%; justify-content:flex-start; margin-left:0; }
  .app-bar-nav a{ padding:12px 14px; font-size:14px; min-height:44px; }
  .nav-divider{ display:none; }
  .theme-switcher, .account-widget{ width:100%; margin-left:0; justify-content:flex-start; }
  .theme-switcher{ justify-content:center; padding:8px; }
  .account-widget-btn{ width:100%; justify-content:center; }
}

/* ---------- Globale Suche ---------- */
.app-bar-search{ position:relative; flex:1; min-width:160px; max-width:340px; }
.app-bar-search input{
  width:100%; padding:9px 14px; border-radius:20px; border:1px solid rgba(255,255,255,0.18);
  background:rgba(255,255,255,0.07); color:#fff; font-size:13px; font-family:inherit; min-height:36px;
}
.app-bar-search input::placeholder{ color:#9aa7bd; }
.app-bar-search input:focus{ outline:none; border-color:var(--core-accent); background:rgba(255,255,255,0.12); }
.search-results{
  position:absolute; top:calc(100% + 8px); left:0; right:0;
  background:var(--core-surface); color:var(--core-ink); border:1px solid var(--core-border);
  border-radius:12px; box-shadow:0 20px 40px -12px rgba(0,0,0,0.35); overflow:hidden; z-index:200;
  max-height:60vh; overflow-y:auto;
}
.search-results[hidden]{ display:none; }
.search-results .group-label{ font-size:10.5px; font-weight:800; text-transform:uppercase; letter-spacing:0.5px; color:var(--core-ink-soft); padding:10px 14px 4px; }
.search-results a{
  display:flex; flex-direction:column; gap:2px; padding:9px 14px; text-decoration:none; color:var(--core-ink);
}
.search-results a:hover{ background:var(--core-surface-alt); }
.search-results a .r-title{ font-size:13px; font-weight:600; }
.search-results a .r-sub{ font-size:11.5px; color:var(--core-ink-soft); }
.search-results .empty{ padding:14px; font-size:12.5px; color:var(--core-ink-soft); text-align:center; }

/* ---------- Profil / Avatar ---------- */
.avatar-circle{
  width:88px; height:88px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  font-family:'Space Grotesk', sans-serif; font-weight:700; font-size:32px; color:#fff; flex-shrink:0;
  box-shadow:0 8px 20px -6px rgba(0,0,0,0.3);
}
.avatar-circle.small{ width:32px; height:32px; font-size:14px; }
.color-swatch-row{ display:flex; flex-wrap:wrap; gap:10px; margin-top:6px; }
.color-swatch{
  width:32px; height:32px; border-radius:50%; border:2px solid transparent; cursor:pointer; padding:0;
}
.color-swatch.active{ border-color:var(--core-ink); box-shadow:0 0 0 2px var(--core-surface), 0 0 0 4px var(--core-ink); }
.profil-card{
  background:var(--core-surface); border:1px solid var(--core-border); border-radius:16px; padding:26px;
  max-width:560px; margin:0 0 20px;
}
.profil-card h3{ margin:0 0 16px; font-size:16px; }
.profil-head{ display:flex; align-items:center; gap:18px; margin-bottom:22px; }
.profil-head .info strong{ display:block; font-size:16px; }
.profil-head .info span{ font-size:12.5px; color:var(--core-ink-soft); }
.field{ margin-bottom:16px; }
.field label{ display:block; font-size:11px; font-weight:700; text-transform:uppercase; letter-spacing:0.4px; color:var(--core-ink-soft); margin-bottom:6px; }
.field input{
  width:100%; padding:12px 14px; border:1px solid var(--core-border); border-radius:10px;
  font-size:14px; font-family:inherit; color:var(--core-ink); background:var(--core-surface-alt); min-height:44px;
}
.field input:focus{ outline:none; border-color:var(--core-accent); }

/* ---------- Gamification (Dashboard) ---------- */
.gam-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(220px, 1fr));
  gap:14px;
  margin-bottom:14px;
}
.gam-card{
  background:var(--core-surface);
  border:1px solid var(--core-border);
  border-radius:14px;
  padding:16px 18px;
}
.gam-card-head{ display:flex; align-items:baseline; justify-content:space-between; gap:10px; margin-bottom:10px; }
.gam-label{ font-weight:700; font-size:14px; }
.gam-sub{ font-size:12px; color:var(--core-ink-soft); }
.gam-bar{ height:8px; border-radius:6px; background:var(--core-surface-alt); overflow:hidden; }
.gam-bar-fill{ height:100%; background:var(--core-accent); border-radius:6px; transition:width .4s ease; }
.gam-bar-fill.goal{ background:var(--good); }
.gam-motivation{
  font-size:13px; color:var(--core-ink-soft); background:var(--core-surface-alt);
  border:1px solid var(--core-border); border-radius:12px; padding:12px 16px; margin-bottom:14px; line-height:1.5;
}
.badge-row{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:26px; }
.badge-chip{
  width:40px; height:40px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  font-size:18px; background:var(--core-surface-alt); border:1px solid var(--core-border);
  opacity:0.35; filter:grayscale(1);
}
.badge-chip.unlocked{ opacity:1; filter:none; background:var(--core-accent-soft); border-color:var(--core-accent); }

/* ---------- XP-Toast ---------- */
.gam-toast{
  position:fixed; bottom:24px; left:50%; transform:translate(-50%, 20px);
  background:var(--core-navy); color:#fff; font-weight:700; font-size:13px;
  padding:10px 18px; border-radius:24px; box-shadow:0 12px 30px -8px rgba(0,0,0,0.4);
  opacity:0; transition:opacity .25s ease, transform .25s ease; z-index:500; pointer-events:none;
}
.gam-toast.show{ opacity:1; transform:translate(-50%, 0); }

/* ---------- Kalender ---------- */
.cal-layout{ display:grid; grid-template-columns:1.6fr 1fr; gap:20px; align-items:start; }
@media (max-width:900px){ .cal-layout{ grid-template-columns:1fr; } }
.cal-main{ background:var(--core-surface); border:1px solid var(--core-border); border-radius:16px; padding:20px; }
.cal-nav{ display:flex; align-items:center; justify-content:space-between; margin-bottom:14px; }
.cal-nav h2{ font-size:17px; margin:0; }
.cal-nav .btn{ padding:8px 14px; min-height:36px; }
.cal-weekdays{ display:grid; grid-template-columns:repeat(7,1fr); gap:6px; font-size:11px; font-weight:700; text-transform:uppercase; letter-spacing:0.4px; color:var(--core-ink-soft); text-align:center; margin-bottom:6px; }
.cal-grid{ display:grid; grid-template-columns:repeat(7,1fr); gap:6px; }
.cal-cell{
  aspect-ratio:1/1; border-radius:10px; border:1px solid var(--core-border); background:var(--core-surface-alt);
  padding:6px; cursor:pointer; display:flex; flex-direction:column; gap:4px; transition:border-color .15s, background .15s;
  min-height:48px;
}
.cal-cell.empty{ border:none; background:none; cursor:default; }
.cal-cell:not(.empty):hover{ border-color:var(--core-accent); }
.cal-cell.today{ border-color:var(--core-accent); box-shadow:inset 0 0 0 1px var(--core-accent); }
.cal-cell.selected{ background:var(--core-accent-soft); }
.cal-daynum{ font-size:12.5px; font-weight:700; }
.cal-dots{ display:flex; gap:3px; flex-wrap:wrap; margin-top:auto; }
.cal-dot{ width:6px; height:6px; border-radius:50%; }
.cal-side{ display:flex; flex-direction:column; gap:16px; }
.cal-side .profil-card{ max-width:none; margin:0; }
@media (max-width:640px){ .cal-cell{ min-height:40px; padding:4px; } .cal-daynum{ font-size:11px; } }

/* ---------- Dokumente ---------- */
.doc-upload-row{ display:flex; gap:10px; flex-wrap:wrap; align-items:center; }
.doc-upload-row input[type="file"]{
  flex:1; min-width:200px; font-size:13px; color:var(--core-ink-soft);
  padding:9px 0;
}
.doc-card{
  background:var(--core-surface); border:1px solid var(--core-border); border-radius:16px;
  padding:20px; margin-bottom:16px;
}
.doc-card-head{ display:flex; align-items:flex-start; gap:14px; }
.doc-icon{ font-size:28px; flex-shrink:0; }
.doc-info{ flex:1; display:flex; flex-direction:column; gap:2px; }
.doc-info strong{ font-size:15px; }
.chip-row{ display:flex; flex-wrap:wrap; gap:6px; margin-top:8px; }
.chip{
  font-size:11.5px; font-weight:700; color:var(--core-accent); background:var(--core-accent-soft);
  padding:4px 10px; border-radius:20px;
}

/* ---------- Fächer & Farben ---------- */
.subject-row{
  display:flex; align-items:center; gap:10px; padding:9px 0; border-bottom:1px dashed var(--core-border);
}
.subject-row:last-child{ border-bottom:none; }
.subject-dot{ width:14px; height:14px; border-radius:50%; flex-shrink:0; }
.subject-name{ flex:1; font-size:13.5px; font-weight:600; }
.subject-mini-swatches{ display:flex; gap:4px; }
.subject-mini-swatch{ width:16px; height:16px; border-radius:50%; border:2px solid transparent; cursor:pointer; padding:0; }
.subject-mini-swatch.active{ border-color:var(--core-ink); }

/* ---------- Account widget (Cloud-Konto) ---------- */
.account-widget{ position:relative; margin-left:4px; }
.account-widget-btn{
  display:flex; align-items:center; gap:7px;
  background:rgba(255,255,255,0.06); border:1px solid rgba(255,255,255,0.18);
  color:#fff; font-size:12px; font-weight:700; padding:8px 13px; border-radius:20px;
  cursor:pointer; white-space:nowrap; min-height:36px;
}
.account-widget-btn:hover{ background:rgba(255,255,255,0.14); }
.account-widget-btn .dot{ width:8px; height:8px; border-radius:50%; background:#94a3b8; flex-shrink:0; }
.account-widget-btn .dot.on{ background:#34d399; }

/* ---------- Modal (Konto, Einstellungen) ---------- */
.sc-modal-overlay{
  position:fixed; inset:0; background:rgba(10,14,20,0.55);
  display:flex; align-items:center; justify-content:center; z-index:1000; padding:20px;
}
.sc-modal-overlay[hidden]{ display:none; }
.sc-modal{
  position:relative;
  background:var(--core-surface); color:var(--core-ink); border-radius:16px;
  width:100%; max-width:420px; max-height:90vh; overflow-y:auto; padding:26px;
  box-shadow:0 30px 60px -12px rgba(0,0,0,0.45);
}
.sc-modal h2{ font-size:18px; margin:0 0 6px; font-weight:700; }
.sc-modal p.sub{ font-size:12.5px; color:var(--core-ink-soft); margin:0 0 16px; line-height:1.55; }
.sc-modal label{ display:block; font-size:11px; font-weight:700; text-transform:uppercase; letter-spacing:0.4px; color:var(--core-ink-soft); margin:12px 0 4px; }
.sc-modal input{
  width:100%; padding:11px 12px; border:1px solid var(--core-border); border-radius:8px;
  font-size:14px; font-family:inherit; color:var(--core-ink); min-height:44px; background:var(--core-surface-alt);
}
.sc-modal input:focus{ outline:none; border-color:var(--core-accent); }
.sc-modal .row{ display:flex; gap:10px; margin-top:18px; }
.sc-modal .row .btn{ flex:1; min-height:44px; }
.sc-modal .close-x{
  position:absolute; top:14px; right:16px; background:none; border:none; font-size:20px;
  cursor:pointer; color:var(--core-ink-soft); line-height:1; padding:4px;
}
.sc-modal .tab-row{ display:flex; gap:6px; margin-bottom:6px; }
.sc-modal .tab-row button{
  flex:1; padding:9px; border-radius:8px; border:1px solid var(--core-border);
  background:var(--core-surface-alt); color:var(--core-ink); font-size:12px; font-weight:700;
  cursor:pointer; min-height:38px;
}
.sc-modal .tab-row button.active{ background:var(--core-accent); color:#fff; border-color:var(--core-accent); }
.sc-modal .msg{ font-size:12.5px; padding:10px 12px; border-radius:8px; margin-top:14px; line-height:1.5; }
.sc-modal .msg.ok{ background:rgba(30,142,90,0.12); color:var(--good); }
.sc-modal .msg.err{ background:rgba(210,59,59,0.12); color:var(--bad); }
.sc-modal .setup-note{
  font-size:11.5px; color:var(--core-ink-soft); background:var(--core-surface-alt);
  border:1px solid var(--core-border); border-radius:8px; padding:10px 12px; margin-top:16px; line-height:1.55;
}
.sc-modal .setup-note code{ background:rgba(0,0,0,0.06); padding:1px 4px; border-radius:4px; font-size:11px; }
.sc-modal .account-info{ font-size:13.5px; margin-bottom:4px; }
.sc-modal .account-info strong{ display:block; font-size:15px; margin-bottom:2px; }
.sc-modal .sync-list{ list-style:none; margin:14px 0 0; padding:0; font-size:12.5px; }
.sc-modal .sync-list li{ display:flex; justify-content:space-between; padding:6px 0; border-bottom:1px dashed var(--core-border); color:var(--core-ink-soft); }
.sc-modal .sync-list li:last-child{ border-bottom:none; }
.sc-modal .link-btn{ background:none; border:none; color:var(--bad); font-size:11.5px; font-weight:700; cursor:pointer; text-decoration:underline; padding:0; margin-top:14px; }
