/* ── DESIGN TOKENS ── */
:root{
  /* Dark mode (default) */
  --bg:#111111;
  --surface:#1a1a1a;
  --elevated:#222222;
  --card:#1e1e1e;
  --text:#f0f0f0;
  --text2:#999;
  --text3:#555;
  --green:#2ecc71;
  --green-dark:#27ae60;
  --accent:#2ecc71;
  --red:#e74c3c;
  --border:rgba(255,255,255,0.1);
  --border-solid:#2a2a2a;
  --grad:linear-gradient(135deg,#27ae60,#2ecc71);
  --nav-h:56px;
  --radius:12px;
  --radius-sm:8px;
  /* Legacy aliases */
  --dark:#111;--gray:#999;--light:#222;--white:#f0f0f0;
  --gd:#27ae60;--g1:#2ecc71;--g2:#27ae60;--g3:#1e8449;
}

/* ── LIGHT MODE ── */
body.light{
  --bg:#f5f5f5;--surface:#ebebeb;--elevated:#ffffff;--card:#ffffff;
  --text:#111111;--text2:#555;--text3:#aaa;
  --border:rgba(0,0,0,0.1);--border-solid:#ddd;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background:var(--bg);color:var(--text);
  font-size:14px;line-height:1.6;min-height:100vh;
}

/* ── NAVBAR ── */
.navbar{
  background:var(--surface);
  border-bottom:1px solid var(--border);
  padding:0 20px;
  display:flex;align-items:center;justify-content:space-between;
  height:var(--nav-h);position:sticky;top:0;z-index:200;
  padding-left:max(20px,env(safe-area-inset-left));
  padding-right:max(20px,env(safe-area-inset-right));
}
.navbar-brand{
  display:flex;align-items:center;gap:8px;
  text-decoration:none;font-weight:700;font-size:16px;
  color:var(--green);letter-spacing:.5px;
}
.navbar-brand img{height:28px;width:auto}
.navbar-nav{display:flex;gap:2px;align-items:center;flex-wrap:wrap}
.navbar-nav a{
  color:var(--text2);text-decoration:none;
  padding:6px 10px;border-radius:var(--radius-sm);
  font-size:13px;font-weight:500;transition:all .15s;white-space:nowrap;
}
.navbar-nav a:hover{color:var(--text);background:var(--elevated)}
.navbar-nav a.active{background:var(--green);color:#fff;font-weight:600}
.navbar-user{
  color:var(--text2);font-size:13px;padding:5px 10px;
  border-radius:var(--radius-sm);border:1px solid var(--border);
  white-space:nowrap;text-decoration:none;
}
.navbar-user:hover{border-color:var(--green);color:var(--green)}

/* Burger menu */
.burger-btn{
  display:none;flex-direction:column;gap:5px;cursor:pointer;
  background:none;border:none;padding:8px;border-radius:var(--radius-sm);
}
.burger-btn span{display:block;width:22px;height:2px;background:var(--text2);border-radius:2px;transition:all .2s;}
.burger-btn:hover span{background:var(--text)}
.mobile-menu{
  display:none;position:fixed;inset:0;z-index:199;
  background:rgba(0,0,0,0.6);backdrop-filter:blur(6px);
}
.mobile-menu.open{display:block}
.mobile-menu-panel{
  position:absolute;top:0;right:0;bottom:0;width:260px;
  background:var(--card);border-left:1px solid var(--border);
  padding:0;overflow-y:auto;
  transform:translateX(100%);transition:transform .25s cubic-bezier(0.4,0,0.2,1);
}
.mobile-menu.open .mobile-menu-panel{transform:translateX(0)}
.mobile-menu-header{
  padding:16px 20px;border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
}
.mobile-menu-header strong{color:var(--green);font-size:15px}
.mobile-menu-close{background:none;border:none;font-size:20px;cursor:pointer;color:var(--text2);padding:4px 8px}
.mobile-menu-panel a,.mobile-menu-panel button.menu-item{
  display:flex;align-items:center;gap:10px;
  padding:13px 20px;color:var(--text);
  text-decoration:none;font-size:14px;font-weight:500;
  border-bottom:1px solid var(--border);width:100%;
  background:none;border-top:none;border-left:none;border-right:none;
  cursor:pointer;text-align:left;
  transition:background .15s;
}
.mobile-menu-panel a:hover,.mobile-menu-panel button.menu-item:hover{background:var(--elevated)}
.mobile-menu-panel a.active{color:var(--green);font-weight:700}

/* ── LAYOUT ── */
.main{
  max-width:1100px;margin:28px auto;
  padding:0 max(16px,env(safe-area-inset-left));
  padding-right:max(16px,env(safe-area-inset-right));
}

/* ── CARDS ── */
.card{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius);padding:clamp(16px,3vw,24px);
  margin-bottom:clamp(12px,2vw,20px);
}
.card-title{
  font-size:15px;font-weight:700;color:var(--text);
  margin-bottom:16px;padding-bottom:12px;
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:8px;
}
.card-title::before{
  content:'';display:block;width:3px;height:16px;
  background:var(--green);border-radius:2px;flex-shrink:0;
}

/* ── BUTTONS ── */
.btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 16px;border-radius:var(--radius-sm);
  border:1px solid transparent;cursor:pointer;
  font-size:13px;font-weight:600;font-family:inherit;
  text-decoration:none;transition:all .15s;white-space:nowrap;
}
.btn-primary{background:var(--green);color:#fff;border-color:var(--green)}
.btn-primary:hover{background:var(--green-dark);border-color:var(--green-dark)}
.btn-secondary{background:var(--elevated);color:var(--text);border-color:var(--border)}
.btn-secondary:hover{border-color:var(--green);color:var(--green)}
.btn-danger{background:rgba(231,76,60,0.1);color:#e74c3c;border-color:rgba(231,76,60,0.3)}
.btn-danger:hover{background:#e74c3c;color:#fff;border-color:#e74c3c}
.btn-outline{background:transparent;border-color:var(--border);color:var(--text2)}
.btn-outline:hover{border-color:var(--green);color:var(--green)}
.btn-sm{padding:5px 11px;font-size:12px}
.btn-lg{padding:12px 24px;font-size:15px}

/* ── FORMS ── */
.form-section{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:14px;overflow:hidden}
.form-section-header{
  background:var(--elevated);color:var(--text);
  padding:9px 16px;font-size:11px;font-weight:700;
  letter-spacing:1px;text-transform:uppercase;
  border-bottom:1px solid var(--border);
  border-left:3px solid var(--green);
}
.form-section-body{padding:16px}
.form-row{display:flex;gap:12px}
.form-row .form-group{flex:1;min-width:0}
.form-group{margin-bottom:14px}
.form-group label{
  display:block;font-size:11px;font-weight:600;
  color:var(--text2);margin-bottom:5px;
  text-transform:uppercase;letter-spacing:.8px;
}
.form-group input,.form-group textarea,.form-group select{
  width:100%;padding:9px 12px;
  border:1px solid var(--border);border-radius:var(--radius-sm);
  font-size:14px;background:var(--elevated);color:var(--text);
  font-family:inherit;transition:border-color .15s;
}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{
  outline:none;border-color:var(--green);
  box-shadow:0 0 0 2px rgba(46,204,113,0.15);
}
.form-group input::placeholder,.form-group textarea::placeholder{color:var(--text3)}
.form-group textarea{resize:vertical;min-height:90px}
.form-group select option{background:var(--card);color:var(--text)}

/* Light mode form fields */
body.light .form-group input,body.light .form-group textarea,body.light .form-group select{background:#fff;color:#111;border-color:rgba(0,0,0,0.15)}
body.light .form-group select option{background:#fff;color:#111}
body.light select{color-scheme:light}
body.light input,body.light textarea{color-scheme:light}

/* ── CHECKBOXES ── */
.checkbox-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.checkbox-grid-2{grid-template-columns:repeat(2,1fr)}
.checkbox-item{
  display:flex;align-items:center;gap:8px;
  padding:8px 11px;border:1px solid var(--border);
  border-radius:var(--radius-sm);cursor:pointer;
  transition:all .15s;user-select:none;
  color:var(--text2);font-size:13px;
}
.checkbox-item:hover{border-color:var(--green);color:var(--text)}
.checkbox-item input[type=checkbox]{display:none}
.checkmark{
  width:18px;height:18px;border:1.5px solid var(--text3);
  border-radius:4px;flex-shrink:0;display:flex;
  align-items:center;justify-content:center;
  font-size:11px;font-weight:bold;color:#fff;transition:all .15s;
}
.checkbox-item.checked .checkmark{background:var(--green);border-color:var(--green)}
.checkbox-item.checked{border-color:rgba(46,204,113,0.4);background:rgba(46,204,113,0.05);color:var(--text)}
.zeit-row{display:flex;align-items:center;gap:8px;padding:8px 11px;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text2);font-size:13px}
.zeit-row.checked{border-color:rgba(46,204,113,0.4);background:rgba(46,204,113,0.05);color:var(--text)}
.zeit-row .zeit-input{flex:1;border:none;border-bottom:1px solid var(--border);background:transparent;padding:2px 4px;font-size:13px;color:var(--text)}
.zeit-row .zeit-input:focus{outline:none;border-bottom-color:var(--green)}

/* ── TABLE ── */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius);border:1px solid var(--border)}
table{width:100%;border-collapse:collapse;font-size:13px;min-width:500px}
th{background:var(--elevated);color:var(--text2);padding:10px 14px;text-align:left;font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:.8px;border-bottom:1px solid var(--border);white-space:nowrap}
td{padding:10px 14px;border-bottom:1px solid var(--border);color:var(--text)}
tr:last-child td{border-bottom:none}
tr:hover td{background:rgba(255,255,255,0.02)}
body.light tr:hover td{background:rgba(0,0,0,0.02)}

/* ── BADGES ── */
.badge{display:inline-block;padding:3px 9px;border-radius:4px;font-size:11px;font-weight:600}
.badge-green{background:rgba(46,204,113,0.15);color:#2ecc71;border:1px solid rgba(46,204,113,0.3)}
.badge-gray{background:rgba(255,255,255,0.07);color:var(--text2);border:1px solid var(--border)}
.badge-red{background:rgba(231,76,60,0.12);color:#e74c3c;border:1px solid rgba(231,76,60,0.25)}
.badge-yellow{background:rgba(241,196,15,0.12);color:#f1c40f;border:1px solid rgba(241,196,15,0.25)}

/* ── PROGRESS ── */
.progress-bar-wrap{background:var(--elevated);border-radius:4px;height:5px;overflow:hidden;margin-top:4px}
.progress-bar{height:5px;border-radius:4px;background:var(--green);transition:width .3s}

/* ── PHASE CARDS ── */
.phase-card{border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 16px;margin-bottom:8px;background:var(--elevated)}
.phase-card.phase-green{border-color:rgba(46,204,113,0.35);background:rgba(46,204,113,0.05)}
.phase-card.phase-yellow{border-color:rgba(241,196,15,0.25);background:rgba(241,196,15,0.04)}
.phase-card.phase-red{border-color:rgba(231,76,60,0.25);background:rgba(231,76,60,0.04)}

/* ── TODO ── */
.todo-item{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--border)}
.todo-item:last-child{border-bottom:none}
.todo-item input[type=checkbox]{width:16px;height:16px;cursor:pointer;accent-color:var(--green);flex-shrink:0}
.todo-item label{cursor:pointer;font-size:14px;flex:1;color:var(--text)}
.todo-item.done label{text-decoration:line-through;color:var(--text3)}

/* ── OVERVIEW ── */
.overview-header{display:grid;grid-template-columns:90px 1fr repeat(3,80px) 110px;gap:8px;padding:10px 16px;font-weight:600;font-size:11px;color:var(--text2);border-bottom:2px solid var(--border);background:var(--elevated);text-transform:uppercase;letter-spacing:.8px}
.ov-row-main{display:grid;grid-template-columns:90px 1fr repeat(3,80px) 110px;gap:8px;padding:10px 16px 4px;align-items:center}
.ov-row-actions{padding:4px 16px 12px;display:flex;gap:6px;flex-wrap:wrap;align-items:center}

/* ── ALERTS ── */
.alert{padding:11px 14px;border-radius:var(--radius-sm);margin-bottom:14px;font-size:13px}
.alert-success{background:rgba(46,204,113,0.1);color:#2ecc71;border:1px solid rgba(46,204,113,0.3)}
.alert-error{background:rgba(231,76,60,0.1);color:#e74c3c;border:1px solid rgba(231,76,60,0.3)}

/* ── STATS ── */
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:20px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;text-align:center;border-top:3px solid var(--green)}
.stat-card .stat-num{font-size:32px;font-weight:700;color:var(--green);line-height:1}
.stat-card .stat-label{font-size:11px;color:var(--text2);margin-top:4px;text-transform:uppercase;letter-spacing:.8px}

/* ── HERO ── */
.hero-buttons{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:24px 0}
.hero-btn{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:clamp(20px,4vw,32px) 20px;text-align:center;cursor:pointer;text-decoration:none;color:var(--text);transition:all .2s;display:block}
.hero-btn:hover{border-color:var(--green);transform:translateY(-2px);box-shadow:0 6px 20px rgba(46,204,113,0.15)}
.hero-icon{font-size:clamp(28px,5vw,40px);margin-bottom:10px;display:block}
.hero-label{font-size:clamp(14px,2.5vw,16px);font-weight:700}
.hero-sub{font-size:12px;color:var(--text2);margin-top:4px}

/* ── ADMIN ── */
.admin-layout{display:flex;gap:20px}
.admin-sidebar{width:190px;flex-shrink:0}
.admin-sidebar .sidebar-item{display:block;padding:9px 13px;border-radius:var(--radius-sm);color:var(--text2);text-decoration:none;font-size:13px;margin-bottom:3px;transition:all .15s;border:1px solid transparent}
.admin-sidebar .sidebar-item:hover{color:var(--text);background:var(--elevated);border-color:var(--border)}
.admin-sidebar .sidebar-item.active{background:rgba(46,204,113,0.1);border-color:rgba(46,204,113,0.3);color:var(--green);font-weight:600}
.admin-content{flex:1;min-width:0}

/* ── FORM ACTIONS ── */
.form-actions{display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap;padding:clamp(12px,2vw,16px);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);position:sticky;bottom:12px;z-index:100;box-shadow:0 4px 20px rgba(0,0,0,.4)}

/* ── SIGNATURE CANVAS ── */
.sig-canvas-wrap{background:#fff;border:2px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;cursor:crosshair}
.sig-canvas-wrap canvas{display:block;width:100%;touch-action:none}
.sig-preview{max-height:50px;border:1px solid var(--border);border-radius:6px;margin-top:6px}

/* ── THEME TOGGLE ── */
.theme-toggle{
  width:36px;height:20px;border-radius:20px;
  border:1px solid var(--border);background:var(--elevated);
  cursor:pointer;padding:0;position:relative;
  transition:background .25s;flex-shrink:0;
}
.theme-toggle::after{
  content:'';position:absolute;top:2px;left:2px;
  width:14px;height:14px;border-radius:50%;
  background:var(--green);
  transition:transform .25s cubic-bezier(0.34,1.56,0.64,1);
}
body.light .theme-toggle::after{transform:translateX(16px)}
body.light .theme-toggle{background:#e0e0e0;border-color:rgba(0,0,0,0.15)}

/* ── LIGHT MODE OVERRIDES ── */
body.light .card{background:#fff;border-color:rgba(0,0,0,0.08);box-shadow:0 1px 8px rgba(0,0,0,.06)}
body.light .form-section{background:#fff;border-color:rgba(0,0,0,0.08)}
body.light .form-section-header{background:#f8f8f8;border-color:rgba(0,0,0,0.08);color:#333}
body.light .navbar{background:#fff;border-color:rgba(0,0,0,0.1)}
body.light .navbar-nav a{color:#555}
body.light .navbar-nav a:hover{background:#f0f0f0;color:#111}
body.light .stat-card{background:#fff;border-color:rgba(0,0,0,0.08)}
body.light .hero-btn{background:#fff;border-color:rgba(0,0,0,0.1);color:#111}
body.light .btn-secondary{background:#f0f0f0;color:#333;border-color:rgba(0,0,0,0.12)}
body.light .btn-outline{border-color:rgba(0,0,0,0.15);color:#555}
body.light .checkbox-item{border-color:rgba(0,0,0,0.12);color:#444}
body.light .admin-sidebar .sidebar-item{color:#555}
body.light .admin-sidebar .sidebar-item:hover{background:#f0f0f0;color:#111}
body.light .form-actions{background:rgba(255,255,255,0.97);border-color:rgba(0,0,0,0.1)}
body.light .mobile-menu-panel{background:#fff;border-color:rgba(0,0,0,0.1)}
body.light .mobile-menu-panel a,body.light .mobile-menu-panel button.menu-item{border-color:rgba(0,0,0,0.07);color:#222}
body.light table th{background:#f5f5f5;color:#555;border-color:rgba(0,0,0,0.1)}
body.light td{border-color:rgba(0,0,0,0.07);color:#222}

/* ── RESPONSIVE TABLET ── */
@media(max-width:900px){
  .overview-header{display:none}
  .ov-row-main{grid-template-columns:1fr auto;gap:6px}
  .ov-date,.ov-liefertermin{display:none}
  .ov-ampel{display:flex;gap:6px}
  .admin-layout{flex-direction:column}
  .admin-sidebar{width:100%}
  .admin-sidebar .sidebar-nav{display:flex;flex-wrap:wrap;gap:6px}
  .admin-sidebar .sidebar-item{margin-bottom:0}
  .stats-grid{grid-template-columns:repeat(3,1fr)}
  .checkbox-grid{grid-template-columns:repeat(2,1fr)}
  /* Hide desktop nav on tablet/mobile, show burger */
  .navbar-nav{display:none!important}
  .burger-btn{display:flex!important}
}

/* ── RESPONSIVE MOBILE ── */
@media(max-width:600px){
  .stats-grid{grid-template-columns:1fr 1fr;gap:10px}
  .stat-card{padding:14px}
  .stat-card .stat-num{font-size:26px}
  .hero-buttons{grid-template-columns:1fr;gap:10px;margin:16px 0}
  .hero-btn{padding:16px;display:flex;align-items:center;text-align:left;gap:12px}
  .hero-icon{font-size:26px;margin-bottom:0;flex-shrink:0}
  .checkbox-grid{grid-template-columns:1fr}
  .checkbox-grid-2{grid-template-columns:1fr}
  .form-row{flex-direction:column;gap:0}
  .form-actions{bottom:0;border-radius:0;border-left:none;border-right:none;border-bottom:none;justify-content:stretch}
  .form-actions .btn{flex:1;justify-content:center}
  .main{padding:0 12px;margin:14px auto}
}

/* ── TOUCH DEVICES ── */
@media(hover:none)and(pointer:coarse){
  .btn{min-height:44px}
  .btn-sm{min-height:36px}
  .form-group input,.form-group select,.form-group textarea{font-size:16px}
  .checkbox-item{min-height:44px}
  .todo-item{min-height:44px}
  .navbar-nav a{padding:8px 10px}
  .btn:active{opacity:0.75}
}

/* ── PWA STANDALONE ── */
@media(display-mode:standalone){
  .navbar{padding-top:env(safe-area-inset-top);height:calc(var(--nav-h) + env(safe-area-inset-top))}
  .main{padding-bottom:calc(20px + env(safe-area-inset-bottom))}
  .form-actions{bottom:calc(12px + env(safe-area-inset-bottom))}
}

/* ── LANDSCAPE PHONE ── */
@media(max-height:500px)and(orientation:landscape){
  .hero-buttons{grid-template-columns:repeat(3,1fr);margin:10px 0}
  .hero-btn{padding:12px}
  .hero-icon{font-size:22px}
}