/* ============ Design tokens ============ */
:root{
  --bg:#f2f5f9;
  --bg-elevated:#ffffff;
  --sidebar-bg:#0f2138;
  --sidebar-bg-active:#16314f;
  --sidebar-text:#c9d6e6;
  --sidebar-text-active:#ffffff;
  --text:#182233;
  --text-muted:#65728a;
  --border:#e3e8f0;
  --primary:#145da0;
  --primary-dark:#0d3d6b;
  --primary-light:#e7f1fb;
  --accent:#1fae7a;
  --accent-light:#e4f7ef;
  --warning:#c98a12;
  --warning-light:#fbf0da;
  --danger:#d5484d;
  --danger-light:#fbe7e8;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow:0 4px 18px rgba(15,33,56,.07);
  --shadow-lg:0 12px 32px rgba(15,33,56,.14);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

[data-theme="dark"]{
  --bg:#0b1220;
  --bg-elevated:#111b2d;
  --sidebar-bg:#070d18;
  --sidebar-bg-active:#111e33;
  --sidebar-text:#8b9bb4;
  --sidebar-text-active:#ffffff;
  --text:#e7ecf5;
  --text-muted:#8a97ac;
  --border:#20304a;
  --primary:#4c9fe0;
  --primary-dark:#2f7fc0;
  --primary-light:#12293f;
  --accent:#33c98f;
  --accent-light:#0f3327;
  --warning:#e0ac4c;
  --warning-light:#3a2f13;
  --danger:#e97b7f;
  --danger-light:#3a1c1e;
  --shadow:0 4px 18px rgba(0,0,0,.35);
  --shadow-lg:0 16px 40px rgba(0,0,0,.5);
}

*,*::before,*::after{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  transition:background .2s ease,color .2s ease;
}
svg{width:20px;height:20px;fill:currentColor;flex:none}
button{font-family:inherit}
select,input,textarea{font-family:inherit;font-size:.92rem}

/* ============ Layout ============ */
.app{display:flex;min-height:100vh}

.sidebar{
  width:264px;
  flex:none;
  background:var(--sidebar-bg);
  color:var(--sidebar-text);
  display:flex;
  flex-direction:column;
  padding:20px 16px;
  position:sticky;
  top:0;
  height:100vh;
  z-index:30;
}
.brand{display:flex;align-items:center;gap:12px;padding:8px 8px 20px}
.brand-logo{width:38px;height:38px;border-radius:10px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{color:#fff;font-size:1.05rem;letter-spacing:.5px}
.brand-text span{font-size:.72rem;color:var(--sidebar-text)}

.nav{display:flex;flex-direction:column;gap:4px;flex:1;margin-top:8px}
.nav-item{
  display:flex;align-items:center;gap:12px;
  background:none;border:none;color:var(--sidebar-text);
  padding:11px 12px;border-radius:var(--radius-sm);
  font-size:.93rem;cursor:pointer;text-align:left;
  transition:background .15s ease,color .15s ease;
  position:relative;
}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-item.active{background:var(--sidebar-bg-active);color:var(--sidebar-text-active)}
.nav-item.active svg{fill:var(--accent)}
.nav-badge{
  margin-left:auto;background:var(--accent);color:#04241a;
  font-size:.68rem;font-weight:700;border-radius:20px;
  padding:1px 7px;
}

.sidebar-footer{display:flex;flex-direction:column;gap:12px;padding-top:12px;border-top:1px solid rgba(255,255,255,.08)}
.theme-toggle{
  align-self:flex-start;background:rgba(255,255,255,.06);border:none;color:var(--sidebar-text);
  border-radius:20px;padding:6px;cursor:pointer;display:flex;gap:2px;
}
.theme-toggle svg{width:18px;height:18px;padding:2px}
.theme-toggle .icon-moon{display:none}
[data-theme="dark"] .theme-toggle .icon-sun{display:none}
[data-theme="dark"] .theme-toggle .icon-moon{display:block}
.theme-toggle:hover{background:rgba(255,255,255,.14)}

.profile-card{display:flex;align-items:center;gap:10px}
.avatar{
  width:38px;height:38px;border-radius:50%;background:var(--primary);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:.82rem;flex:none;
}
.profile-info{display:flex;flex-direction:column;line-height:1.25;overflow:hidden}
.profile-info strong{font-size:.85rem;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.profile-info span{font-size:.72rem;color:var(--sidebar-text)}

.scrim{
  display:none;position:fixed;inset:0;background:rgba(6,12,22,.5);z-index:25;
}

.main{flex:1;min-width:0;display:flex;flex-direction:column}

.topbar{
  display:flex;align-items:center;gap:16px;
  padding:16px 28px;
  background:var(--bg-elevated);
  border-bottom:1px solid var(--border);
  position:sticky;top:0;z-index:20;
}
.burger{display:none;background:none;border:none;color:var(--text);cursor:pointer;padding:4px}
.page-title{font-size:1.25rem;margin:0;flex:1}
.topbar-actions{display:flex;align-items:center;gap:12px}

.search-box{
  display:flex;align-items:center;gap:8px;
  background:var(--bg);border:1px solid var(--border);border-radius:20px;
  padding:8px 14px;min-width:240px;
}
.search-box svg{width:16px;height:16px;color:var(--text-muted)}
.search-box input{border:none;background:none;outline:none;color:var(--text);width:100%}

.content{padding:24px 28px 60px;flex:1}

.view{display:none}
.view.active{display:flex;flex-direction:column;gap:20px}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  border:none;border-radius:var(--radius-sm);
  padding:10px 16px;font-size:.88rem;font-weight:600;
  cursor:pointer;transition:transform .1s ease,box-shadow .15s ease,background .15s ease;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);box-shadow:var(--shadow)}
.btn-ghost{background:none;color:var(--text-muted);border:1px solid var(--border)}
.btn-ghost:hover{background:var(--bg)}
.btn:active{transform:scale(.97)}
.icon-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:6px;border-radius:50%}
.icon-btn:hover{background:var(--bg);color:var(--text)}
.link-btn{background:none;border:none;color:var(--primary);font-weight:600;font-size:.82rem;cursor:pointer}
.link-btn:hover{text-decoration:underline}

/* ============ Cards ============ */
.card{
  background:var(--bg-elevated);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:20px 22px;box-shadow:var(--shadow);
}
.card-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.card-header.wrap{flex-wrap:wrap}
.card-header h2{margin:0;font-size:1.02rem}
.text-muted{color:var(--text-muted);font-size:.82rem}

/* ============ Stat cards ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat-card{
  background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:18px 20px;display:flex;flex-direction:column;gap:4px;box-shadow:var(--shadow);
}
.stat-label{font-size:.78rem;color:var(--text-muted);font-weight:600;text-transform:uppercase;letter-spacing:.4px}
.stat-value{font-size:1.9rem;font-weight:700;color:var(--primary)}
.stat-hint{font-size:.76rem;color:var(--text-muted)}

.dash-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:20px;align-items:start}

/* ============ Project mini list (dashboard) ============ */
.project-mini-list{display:flex;flex-direction:column;gap:14px}
.project-mini{display:flex;align-items:center;gap:12px}
.project-mini .dot{width:9px;height:9px;border-radius:50%;flex:none}
.project-mini-body{flex:1;min-width:0}
.project-mini-body strong{display:block;font-size:.88rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.progress-track{height:6px;border-radius:6px;background:var(--bg);margin-top:6px;overflow:hidden}
.progress-fill{height:100%;border-radius:6px;background:var(--primary)}
.project-mini-pct{font-size:.78rem;color:var(--text-muted);font-variant-numeric:tabular-nums}

/* ============ Activity feed ============ */
.activity-feed{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px;max-height:340px;overflow:auto}
.activity-feed li{display:flex;gap:10px;font-size:.85rem}
.activity-feed .a-icon{
  width:30px;height:30px;border-radius:50%;flex:none;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);
}
.activity-feed .a-body strong{display:block;font-size:.85rem}
.activity-feed .a-time{color:var(--text-muted);font-size:.75rem}

/* ============ Project grid (full page) ============ */
.project-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.project-card{
  border:1px solid var(--border);border-radius:var(--radius-md);padding:18px;
  display:flex;flex-direction:column;gap:10px;background:var(--bg);
}
.project-card-top{display:flex;justify-content:space-between;align-items:flex-start;gap:8px}
.project-card h3{margin:0;font-size:.98rem}
.subsidiary-tag{font-size:.72rem;color:var(--primary);background:var(--primary-light);padding:2px 8px;border-radius:20px;font-weight:600;white-space:nowrap}
.project-card p{margin:0;font-size:.82rem;color:var(--text-muted)}
.project-card-footer{display:flex;justify-content:space-between;align-items:center;font-size:.78rem;color:var(--text-muted)}

.badge{font-size:.72rem;font-weight:700;padding:3px 10px;border-radius:20px;white-space:nowrap}
.badge-laufend{background:var(--primary-light);color:var(--primary)}
.badge-planung{background:var(--warning-light);color:var(--warning)}
.badge-abgeschlossen{background:var(--accent-light);color:var(--accent)}

/* ============ Requests ============ */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap}
.filter-bar select{
  border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 10px;
  background:var(--bg-elevated);color:var(--text);
}
.request-list{display:flex;flex-direction:column;gap:12px}
.request-item{border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;background:var(--bg)}
.request-summary{
  display:flex;align-items:center;gap:12px;padding:14px 16px;cursor:pointer;
}
.request-id{font-size:.72rem;color:var(--text-muted);font-variant-numeric:tabular-nums;flex:none;width:64px}
.request-summary-body{flex:1;min-width:0}
.request-summary-body strong{display:block;font-size:.9rem;margin-bottom:2px}
.request-meta{display:flex;gap:8px;flex-wrap:wrap;font-size:.75rem;color:var(--text-muted)}
.request-summary .chevron{transition:transform .18s ease;color:var(--text-muted);flex:none}
.request-item.open .chevron{transform:rotate(180deg)}

.status-pill{font-size:.72rem;font-weight:700;padding:3px 10px;border-radius:20px;white-space:nowrap;flex:none}
.status-neu{background:var(--danger-light);color:var(--danger)}
.status-in-bearbeitung{background:var(--warning-light);color:var(--warning)}
.status-erledigt{background:var(--accent-light);color:var(--accent)}

.priority-tag{font-size:.72rem;font-weight:600;padding:2px 8px;border-radius:6px}
.priority-hoch{background:var(--danger-light);color:var(--danger)}
.priority-mittel{background:var(--warning-light);color:var(--warning)}
.priority-niedrig{background:var(--bg-elevated);color:var(--text-muted);border:1px solid var(--border)}

.request-detail{display:none;padding:0 16px 18px;border-top:1px solid var(--border)}
.request-item.open .request-detail{display:block}
.thread{display:flex;flex-direction:column;gap:10px;margin:14px 0}
.thread-msg{max-width:80%;padding:10px 14px;border-radius:12px;font-size:.85rem;line-height:1.4}
.thread-msg.customer{align-self:flex-end;background:var(--primary);color:#fff;border-bottom-right-radius:2px}
.thread-msg.team{align-self:flex-start;background:var(--bg-elevated);border:1px solid var(--border);border-bottom-left-radius:2px}
.thread-msg .meta{display:block;font-size:.68rem;opacity:.75;margin-top:4px}
.request-status-row{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-top:8px}
.status-actions{display:flex;gap:8px}
.status-actions button{
  font-size:.76rem;border:1px solid var(--border);background:var(--bg-elevated);color:var(--text-muted);
  border-radius:20px;padding:5px 12px;cursor:pointer;
}
.status-actions button.active{background:var(--primary);border-color:var(--primary);color:#fff}
.reply-row{display:flex;gap:8px;margin-top:10px}
.reply-row input{flex:1;border:1px solid var(--border);border-radius:20px;padding:9px 14px;background:var(--bg-elevated);color:var(--text)}
.reply-row button{border:none;background:var(--primary);color:#fff;border-radius:20px;padding:9px 16px;font-size:.8rem;font-weight:600;cursor:pointer}
.reply-row button:hover{background:var(--primary-dark)}

.empty-state{text-align:center;color:var(--text-muted);padding:30px 0;font-size:.88rem}

/* ============ Forms (shared) ============ */
.form-row{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.form-row label{font-size:.8rem;font-weight:600;color:var(--text-muted)}
.form-row.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.form-row.two-col > div{display:flex;flex-direction:column;gap:6px}
input[type=text],input[type=search],textarea,select{
  border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:10px 12px;background:var(--bg-elevated);color:var(--text);outline:none;
  transition:border-color .15s ease;
}
input[type=text]:focus,textarea:focus,select:focus{border-color:var(--primary)}
textarea{resize:vertical;font-family:inherit}

.priority-select{display:flex;gap:8px}
.priority-select button{
  flex:1;border:1px solid var(--border);background:var(--bg-elevated);color:var(--text-muted);
  padding:9px 0;border-radius:var(--radius-sm);cursor:pointer;font-size:.85rem;font-weight:600;
}
.priority-select button.active{background:var(--primary);border-color:var(--primary);color:#fff}

/* ============ Feedback ============ */
.feedback-form{max-width:560px}
.star-input{display:flex;gap:6px}
.star-input button{background:none;border:none;cursor:pointer;padding:2px;color:var(--border);transition:transform .1s ease}
.star-input button:hover{transform:scale(1.15)}
.star-input button.filled{color:#f0ac1e}
.star-input svg{width:26px;height:26px}

.rating-bars{display:flex;flex-direction:column;gap:14px}
.rating-bar-row{display:flex;align-items:center;gap:12px}
.rating-bar-name{width:220px;flex:none;font-size:.85rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rating-bar-track{flex:1;height:8px;background:var(--bg);border-radius:8px;overflow:hidden}
.rating-bar-fill{height:100%;background:linear-gradient(90deg,var(--accent),#f0ac1e);border-radius:8px}
.rating-bar-value{width:70px;flex:none;text-align:right;font-size:.8rem;color:var(--text-muted);font-variant-numeric:tabular-nums}

.feedback-feed{display:flex;flex-direction:column;gap:14px}
.feedback-entry{border:1px solid var(--border);border-radius:var(--radius-md);padding:14px 16px;background:var(--bg)}
.feedback-entry-top{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:6px;flex-wrap:wrap}
.feedback-entry-top strong{font-size:.88rem}
.feedback-stars{color:#f0ac1e;display:flex;gap:2px}
.feedback-stars svg{width:15px;height:15px}
.feedback-entry p{margin:0;font-size:.85rem;color:var(--text)}
.feedback-entry-time{font-size:.72rem;color:var(--text-muted);margin-top:6px}

/* ============ Modal ============ */
.modal-backdrop{
  display:none;position:fixed;inset:0;background:rgba(6,12,22,.55);
  align-items:center;justify-content:center;z-index:50;padding:20px;
}
.modal-backdrop.open{display:flex}
.modal{
  background:var(--bg-elevated);border-radius:var(--radius-lg);width:100%;max-width:560px;
  box-shadow:var(--shadow-lg);max-height:90vh;overflow:auto;
  animation:pop .18s ease;
}
@keyframes pop{from{transform:scale(.96);opacity:0}to{transform:scale(1);opacity:1}}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 22px;border-bottom:1px solid var(--border)}
.modal-header h2{margin:0;font-size:1.05rem}
.modal-body{padding:20px 22px}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:6px}

/* ============ Toasts ============ */
.toast-container{position:fixed;bottom:20px;right:20px;display:flex;flex-direction:column;gap:10px;z-index:80}
.toast{
  background:var(--bg-elevated);border:1px solid var(--border);border-left:4px solid var(--primary);
  box-shadow:var(--shadow-lg);border-radius:var(--radius-sm);padding:12px 16px;
  font-size:.85rem;min-width:240px;max-width:320px;
  animation:slidein .2s ease;
}
.toast.success{border-left-color:var(--accent)}
.toast.info{border-left-color:var(--primary)}
@keyframes slidein{from{transform:translateX(30px);opacity:0}to{transform:translateX(0);opacity:1}}
.toast strong{display:block;margin-bottom:2px}
.toast span{color:var(--text-muted)}

/* ============ Responsive ============ */
@media (max-width:980px){
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .dash-grid{grid-template-columns:1fr}
}
@media (max-width:820px){
  .sidebar{position:fixed;left:0;top:0;transform:translateX(-100%);transition:transform .2s ease;box-shadow:var(--shadow-lg)}
  .sidebar.open{transform:translateX(0)}
  .scrim.show{display:block}
  .burger{display:flex}
  .search-box{min-width:0;flex:1}
  .topbar{padding:14px 16px}
  .content{padding:18px 16px 50px}
}
@media (max-width:560px){
  .stat-grid{grid-template-columns:1fr 1fr}
  .form-row.two-col{grid-template-columns:1fr}
  .topbar-actions{flex-wrap:wrap;gap:8px}
  .search-box{order:2;flex-basis:100%}
  .btn-primary span{display:none}
}