/* ============================================================
   aufgaben.wipke.de – Design basiert auf diakovere checksheet
   Schrift: Segoe UI / system-ui | Farben: Indigo/Lila/Navy
============================================================ */

:root {
  /* Hintergrund */
  --bg-base:    #0f172a;
  --bg-surface: rgba(15,23,42,0.85);
  --bg-card:    rgba(15,23,42,0.75);
  --bg-hover:   rgba(30,64,175,0.5);
  --bg-active:  rgba(79,70,229,0.25);
  --bg-input:   rgba(15,23,42,0.72);

  /* Akzent */
  --accent:        #a855f7;
  --accent-bright: #c4b5fd;
  --accent-dark:   #7c3aed;
  --accent-subtle: rgba(168,85,247,0.2);

  /* Texte */
  --text-primary:   #f9fafb;
  --text-secondary: #e5e7eb;
  --text-muted:     #94a3b8;
  --text-accent:    #c7d2fe;

  /* Rahmen */
  --border:       rgba(148,163,184,0.5);
  --border-light: rgba(148,163,184,0.85);

  /* Prioritäten */
  --priority-none: #94a3b8;
  --priority-low:  #6366f1;
  --priority-med:  #f59e0b;
  --priority-high: #ef4444;

  /* Status */
  --status-open:      #e5e7eb;
  --status-progress:  #6366f1;
  --status-done:      #22c55e;
  --status-cancelled: #94a3b8;

  --success: #22c55e;
  --warning: #f59e0b;
  --danger:  #ef4444;

  /* Layout */
  --r-sm: 9px; --r-md: 14px; --r-lg: 18px; --r-xl: 24px;
  --sidebar-w: 260px; --detail-w: 720px; --t: 160ms ease;
}

*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { font-size: 14px; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: radial-gradient(circle at top left, #8b5cf6, #6366f1 40%, #0f172a 100%);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-bright); text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
input,textarea,select {
  font: inherit;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--r-sm);
  padding: .5rem .8rem;
  outline: none;
  transition: border-color var(--t), box-shadow var(--t);
  width: 100%;
}
input:focus,textarea:focus,select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(168,85,247,0.6);
  background: rgba(15,23,42,0.9);
}
input::placeholder,textarea::placeholder { color: rgba(148,163,184,0.9); }
select option { background: #1e293b; }
ul { list-style: none; }
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(148,163,184,0.4); border-radius: 99px; }

/* ── LOGIN ─────────────────────────────────────────────────── */
.login-page {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; overflow: auto;
}
.login-box {
  width: 100%; max-width: 440px;
  padding: 2.5rem 2rem;
  background: linear-gradient(135deg, rgba(15,23,42,0.8), rgba(30,64,175,0.75));
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  margin: 1rem;
  box-shadow: 0 24px 64px rgba(15,23,42,0.7);
  position: relative; overflow: hidden;
}
.login-box::before {
  content:''; position:absolute; inset:0;
  background: radial-gradient(circle at top left, rgba(251,191,36,0.18), transparent 55%);
  pointer-events: none;
}
.login-logo { display:flex; align-items:center; gap:.7rem; justify-content:center; margin-bottom:1.8rem; }
.login-logo .logo-icon {
  width:40px; height:40px;
  background: radial-gradient(circle at 30% 20%, #f9fafb, #a855f7);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; font-weight: 700; color: #111827;
  box-shadow: 0 0 0 2px rgba(248,250,252,0.7);
}
.login-logo h1 { font-size: 1.5rem; font-weight: 700; color: #fff; }
.login-subtitle { text-align:center; color: var(--text-muted); font-size:.9rem; margin-bottom:1.8rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display:block; font-size:.8rem; color: var(--text-secondary); margin-bottom:.3rem; font-weight:500; }
.form-error { color: var(--danger); font-size:.82rem; margin-top:.3rem; display:none; }
.form-error.show { display:block; }
.login-tabs { display:flex; gap:.5rem; margin-bottom:1.5rem; }
.login-tab {
  flex:1; padding:.5rem;
  background: rgba(15,23,42,0.6);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  color: var(--text-secondary); font-size:.9rem; font-weight:500;
  transition: all var(--t);
}
.login-tab.active {
  background: linear-gradient(to right, #4f46e5, #7c3aed);
  border-color: rgba(165,180,252,0.8); color:#fff;
}

/* ── BUTTONS ────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap:.4rem;
  padding: .45rem 1rem;
  border-radius: 14px;
  font-size: .85rem; font-weight: 500;
  transition: all var(--t); white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(to right, #4f46e5, #7c3aed);
  color: #fff;
  border: 1px solid rgba(165,180,252,0.8);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(79,70,229,0.55);
}
.btn-ghost {
  background: transparent; color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: rgba(15,23,42,0.6); color: var(--text-primary); }
.btn-danger { background: transparent; color: var(--danger); border: 1px solid transparent; }
.btn-danger:hover { background: rgba(239,68,68,.1); border-color: var(--danger); }
.btn-icon { padding: .4rem; border-radius: var(--r-sm); }
.btn-full { width: 100%; padding: .7rem; font-size: .95rem; }
.btn:disabled { opacity: .4; cursor: not-allowed; }

/* ── APP LAYOUT ─────────────────────────────────────────────── */
.app-layout { display: flex; height: 100vh; overflow: hidden; }

/* ── SIDEBAR ────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  background: linear-gradient(to bottom, rgba(15,23,42,0.92), rgba(30,64,175,0.85));
  backdrop-filter: blur(16px);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 4px 0 20px rgba(15,23,42,0.5);
}
.sidebar-header {
  padding: 1rem 1rem .8rem;
  display: flex; align-items: center; gap: .6rem;
  border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.sidebar-logo {
  width: 32px; height: 32px;
  background: radial-gradient(circle at 30% 20%, #f9fafb, #a855f7);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-weight: 700; color: #111827;
}
.sidebar-title { font-size: .95rem; font-weight: 700; color: #fff; flex: 1; }
.sidebar-nav { flex: 1; overflow-y: auto; padding: .5rem 0; }
.sidebar-section { padding: .2rem 0; }
.sidebar-section-label {
  padding: .45rem 1rem .25rem;
  display: flex; align-items: center; justify-content: space-between;
  font-size: .68rem; font-weight: 700; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: .1em;
}
.sidebar-section-label .sec-actions { display:flex; gap:.2rem; opacity:0; transition: opacity var(--t); }
.sidebar-section-label:hover .sec-actions { opacity: 1; }
.sec-btn {
  padding: .2rem .35rem; border-radius: var(--r-sm);
  color: var(--text-muted); font-size: .78rem; font-weight: 700; transition: all var(--t);
}
.sec-btn:hover { background: rgba(255,255,255,.1); color: #fff; }

.nav-item {
  display: flex; align-items: center; gap: .6rem;
  padding: .5rem 1rem;
  color: var(--text-secondary); font-size: .88rem; font-weight: 500;
  cursor: pointer; transition: all var(--t); position: relative; user-select: none;
}
.nav-item:hover { background: rgba(255,255,255,.06); color: #fff; }
.nav-item.active {
  background: rgba(129,140,248,0.18);
  color: var(--accent-bright); font-weight: 600;
}
.nav-item.active::before {
  content:''; position: absolute; left:0; top:0; bottom:0;
  width: 3px; background: var(--accent);
  border-radius: 0 2px 2px 0;
}
.nav-item .nav-icon { font-size: .9rem; width: 20px; text-align: center; flex-shrink: 0; }
.nav-item .nav-label { flex:1; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.nav-item .nav-count {
  font-size: .7rem; font-weight: 700;
  background: rgba(129,140,248,0.25); color: var(--accent-bright);
  padding: .1rem .45rem; border-radius: 99px; flex-shrink: 0;
}
.nav-item .nav-dot { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }
.nav-item .nav-actions { display: none; gap:.1rem; margin-left:.2rem; }
.nav-item:hover .nav-actions { display: flex; }
.nav-action-btn {
  padding: .15rem .3rem; border-radius: 4px;
  font-size: .7rem; color: var(--text-muted); transition: all var(--t);
}
.nav-action-btn:hover { background: rgba(255,255,255,.1); color: #fff; }

.project-item { padding-left: 1.8rem; }
.folder-group {}
.folder-header {
  display: flex; align-items: center; gap: .4rem;
  padding: .38rem .8rem .38rem 1rem;
  cursor: pointer; transition: background var(--t);
}
.folder-header:hover { background: rgba(255,255,255,.06); }
.folder-icon { font-size: .85rem; flex-shrink: 0; }
.folder-name { font-size: .85rem; font-weight: 600; color: var(--text-secondary); flex: 1; }
.folder-toggle { font-size: .65rem; color: var(--text-muted); transition: transform var(--t); flex-shrink: 0; }
.folder-toggle.open { transform: rotate(90deg); }
.folder-projects { padding-left: .5rem; }

.sidebar-footer {
  padding: .7rem; border-top: 1px solid var(--border); flex-shrink: 0;
  background: rgba(15,23,42,0.4);
}
.user-card {
  display: flex; align-items: center; gap: .65rem;
  padding: .5rem .65rem; border-radius: var(--r-md);
  cursor: pointer; transition: background var(--t);
}
.user-card:hover { background: rgba(255,255,255,.06); }
.user-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: radial-gradient(circle at 30% 20%, #f9fafb, #a855f7);
  display: flex; align-items: center; justify-content: center;
  font-size: .85rem; font-weight: 700; color: #111827; flex-shrink: 0;
}
.user-info { flex: 1; min-width: 0; }
.user-name { font-size: .85rem; font-weight: 600; color: #fff; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.user-role { font-size: .72rem; color: var(--text-muted); }

/* ── MAIN CONTENT ───────────────────────────────────────────── */
.main-content { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0; }
.content-header {
  padding: .85rem 1.5rem .75rem;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: .8rem; flex-shrink: 0;
  background: linear-gradient(to right, rgba(15,23,42,0.9), rgba(30,64,175,0.8));
  backdrop-filter: blur(16px);
  box-shadow: 0 4px 16px rgba(15,23,42,0.4);
}
.content-header h2 { font-size: 1.1rem; font-weight: 700; color: #fff; flex: 1; }
.header-actions { display: flex; gap: .4rem; align-items: center; }
.view-toggle {
  display: flex;
  background: rgba(15,23,42,0.6);
  border: 1px solid var(--border); border-radius: var(--r-md);
  padding: .2rem; gap: .1rem;
}
.view-btn {
  padding: .3rem .6rem; border-radius: var(--r-sm);
  font-size: .78rem; color: var(--text-muted); transition: all var(--t);
}
.view-btn.active { background: linear-gradient(to right, #4f46e5, #7c3aed); color: #fff; }
.view-btn:hover:not(.active) { color: var(--text-secondary); }
.search-bar { position: relative; }
.search-bar input { padding-left: 2.1rem; width: 220px; font-size: .83rem; }
.search-icon {
  position: absolute; left: .65rem; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); font-size: .85rem; pointer-events: none;
}

/* ── CONTEXT MENU ───────────────────────────────────────────── */
.ctx-menu {
  position: fixed;
  background: linear-gradient(135deg, rgba(15,23,42,0.95), rgba(30,64,175,0.9));
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-light);
  border-radius: var(--r-md); min-width: 170px; z-index: 500;
  box-shadow: 0 12px 40px rgba(15,23,42,0.65); overflow: hidden; display: none;
}
.ctx-menu.show { display: block; }
.ctx-item {
  display: flex; align-items: center; gap: .6rem;
  padding: .5rem .9rem; font-size: .85rem; color: var(--text-secondary);
  cursor: pointer; transition: all var(--t);
}
.ctx-item:hover { background: rgba(255,255,255,.08); color: #fff; }
.ctx-item.danger { color: var(--danger); }
.ctx-divider { height: 1px; background: var(--border); margin: .2rem 0; }