/* BUS-PLANER – eigene Seite, Farben wie auf der Startseite; hell/dunkel über data-theme am <html> */
:root,
:root[data-theme="dark"]{
--bg:#02070c;--panel:#07131e;--pop:#06111b;--field:#020a12;--line:rgba(41,155,215,.35);--accent:#299bd7;--accent2:#75d3ff;
--text:#e8f4fb;--muted:#9fb8c8;--ok:#3fb37f;--warn:#e9a23b;--bad:#ff5d73;
--soft:rgba(255,255,255,.04);--soft2:rgba(255,255,255,.09);--edge:rgba(255,255,255,.25);--edge2:rgba(255,255,255,.12);
--head:linear-gradient(135deg,rgba(3,10,18,.92),rgba(1,4,9,.92));--shadow:rgba(0,0,0,.55);
--canvas:radial-gradient(circle at 50% 40%,#0a1c2b,#03090f 75%);
color-scheme:dark;
}
:root[data-theme="light"]{
--bg:#eef3f7;--panel:#ffffff;--pop:#ffffff;--field:#f6f9fb;--line:rgba(41,155,215,.35);--accent:#1f86bf;--accent2:#136a9a;
--text:#0e2232;--muted:#526a7c;--ok:#23955f;--warn:#b8740f;--bad:#d63650;
--soft:rgba(14,34,50,.03);--soft2:rgba(14,34,50,.07);--edge:rgba(14,34,50,.22);--edge2:rgba(14,34,50,.1);
--head:linear-gradient(135deg,rgba(255,255,255,.94),rgba(238,243,247,.94));--shadow:rgba(14,34,50,.18);
--canvas:radial-gradient(circle at 50% 40%,#ffffff,#e3ebf1 75%);
color-scheme:light;
}
*{margin:0;padding:0;box-sizing:border-box;}
body{background:var(--bg);color:var(--text);font:15px/1.5 Arial,Helvetica,sans-serif;min-height:100vh;transition:background .25s,color .25s;}
button,input,select{font:inherit;color:inherit;}

.pl-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:18px;padding:10px clamp(16px,3vw,32px);background:var(--head);border-bottom:1px solid var(--accent);box-shadow:0 12px 28px var(--shadow);backdrop-filter:blur(8px);}
.pl-logo img{display:block;height:48px;width:auto;}
.pl-header h1{font:600 clamp(20px,2.4vw,28px)/1.1 "Blinker",Arial,sans-serif;letter-spacing:.04em;}
.pl-header h1 small{display:block;margin-top:3px;font:400 12px Arial,sans-serif;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);}
.pl-head-tools{margin-left:auto;display:flex;align-items:center;gap:10px;}
.pl-back{display:inline-flex;align-items:center;gap:10px;min-height:44px;padding:10px 18px;border:1px solid var(--edge);border-radius:6px;color:var(--text);text-decoration:none;font:600 14px Arial,sans-serif;transition:background .2s;}
.pl-back:hover{background:var(--soft2);}
.pl-theme{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--edge);border-radius:6px;background:var(--soft);font-size:17px;cursor:pointer;transition:background .2s;}
.pl-theme:hover{background:var(--soft2);}

/* Sprache: Flaggen-Auswahl */
.pl-lang{position:relative;}
.pl-lang-btn{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:8px 12px;border:1px solid var(--edge);border-radius:6px;background:var(--soft);font-size:14px;cursor:pointer;}
.pl-lang-btn:hover{background:var(--soft2);}
.pl-lang-btn .fa-chevron-down{font-size:10px;opacity:.6;}
.pl-flag{display:inline-block;width:24px;height:16px;border-radius:2px;overflow:hidden;box-shadow:0 0 0 1px var(--edge2);flex:none;}
.pl-flag svg{display:block;width:100%;height:100%;}
.pl-lang-list{position:absolute;top:calc(100% + 6px);right:0;z-index:40;min-width:190px;padding:6px;list-style:none;background:var(--pop);border:1px solid var(--line);border-radius:8px;box-shadow:0 22px 50px var(--shadow);}
.pl-lang-list[hidden]{display:none;}
.pl-lang-list button{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;border:0;border-radius:6px;background:none;font-size:14px;text-align:left;cursor:pointer;}
.pl-lang-list button:hover,.pl-lang-list button[aria-selected="true"]{background:var(--soft2);}
.pl-lang-list button[aria-selected="true"]{font-weight:bold;}

.pl-main{padding:clamp(16px,3vw,32px) clamp(16px,3vw,50px);}
.pl-intro{max-width:860px;margin-bottom:20px;color:var(--muted);}
.pl-intro .ok{color:var(--ok);}
.pl-intro .bad{color:var(--bad);}

.pl-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:20px;align-items:start;}
.pl-box{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px;}
.pl-box + .pl-box{margin-top:16px;}
.pl-box h2{margin-bottom:12px;font:600 18px "Blinker",Arial,sans-serif;letter-spacing:.05em;text-transform:uppercase;color:var(--accent2);}
.pl-box[hidden]{display:none;}

/* Kategorie-Leiste: klappt beim Überfahren auf wie eine Navigation */
.pl-catbar{position:relative;z-index:15;display:flex;flex-wrap:wrap;gap:4px;margin-bottom:16px;padding:6px;background:var(--panel);border:1px solid var(--line);border-radius:10px;}
.pl-cat{position:relative;}
.pl-cat-btn{display:inline-flex;align-items:center;gap:9px;min-height:42px;padding:8px 14px;border:0;border-bottom:2px solid transparent;border-radius:6px 6px 0 0;background:none;font:600 14px Arial,sans-serif;cursor:pointer;transition:background .15s,border-color .15s;}
.pl-cat-btn > i:first-child{color:var(--c);}
.pl-cat-btn .fa-chevron-down{font-size:10px;opacity:.6;transition:transform .2s;}
.pl-cat:hover .pl-cat-btn,.pl-cat.open .pl-cat-btn,.pl-cat:focus-within .pl-cat-btn{background:var(--soft2);border-bottom-color:var(--c);}
.pl-cat:hover .fa-chevron-down,.pl-cat.open .fa-chevron-down{transform:rotate(180deg);}
.pl-drop{position:absolute;top:100%;left:0;display:grid;grid-template-columns:repeat(2,minmax(170px,1fr));gap:5px;width:max-content;max-width:calc(100vw - 32px);max-height:70vh;overflow-y:auto;padding:10px;background:var(--pop);border:1px solid var(--line);border-top:2px solid var(--c);border-radius:0 8px 8px 8px;box-shadow:0 22px 50px var(--shadow);opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .18s,transform .18s,visibility 0s .18s;}
.pl-cat:hover .pl-drop,.pl-cat.open .pl-drop,.pl-cat:focus-within .pl-drop{opacity:1;visibility:visible;transform:none;transition:opacity .18s,transform .18s;}
.pl-cat:nth-last-child(-n+3) .pl-drop{left:auto;right:0;border-radius:8px 0 8px 8px;}
.pl-item{display:flex;align-items:center;gap:9px;width:100%;padding:7px 9px;border:1px solid var(--edge2);border-left:3px solid var(--c);border-radius:6px;background:var(--soft);font-size:14px;text-align:left;cursor:grab;user-select:none;-webkit-user-select:none;transition:background .15s;}
.pl-item:hover{background:var(--soft2);}
.pl-item i{width:16px;text-align:center;color:var(--c);}
.pl-item small{margin-left:auto;padding-left:8px;font-size:11px;color:var(--muted);white-space:nowrap;}

/* Zeichenfläche */
.pl-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:10px;}
.pl-spacer{flex:1;}
.pl-zoom{display:inline-flex;}
.pl-zoom .pl-btn{border-radius:0;}
.pl-zoom .pl-btn:first-child{border-radius:6px 0 0 6px;}
.pl-zoom .pl-btn:last-child{border-radius:0 6px 6px 0;}
.pl-zoom .pl-btn + .pl-btn{margin-left:-1px;}
.pl-exmenu{position:relative;}
.pl-count{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;border-radius:10px;background:var(--accent);color:#fff;font-size:12px;}
.pl-chev{font-size:10px;opacity:.6;}
#exampleList button i{width:16px;text-align:center;color:var(--accent2);}
.pl-sep{height:1px;margin:4px 6px;background:var(--edge2);}
.pl-zoom-val{min-width:64px;justify-content:center;font-variant-numeric:tabular-nums;}
.pl-canvas{overflow:auto;max-height:80vh;overscroll-behavior:contain;background:var(--canvas);border:1px solid var(--line);border-radius:10px;padding:8px;}
.pl-canvas svg{display:block;width:100%;max-width:none;height:auto;touch-action:none;user-select:none;-webkit-user-select:none;}
.pl-canvas .pl-mod{cursor:grab;}
.pl-canvas .pl-mod:active{cursor:grabbing;}
.pl-canvas [data-handle]{cursor:nwse-resize;}
.pl-canvas [data-handle="color"]{cursor:pointer;}
.pl-hint{margin-top:10px;font-size:13px;color:var(--muted);}
/* 3D-Skizze unter dem Plan */
.pl-3d{margin-top:24px;}
.pl-3d h2{margin-bottom:10px;font:600 18px "Blinker",Arial,sans-serif;letter-spacing:.05em;text-transform:uppercase;color:var(--accent2);}
.pl-seg{display:inline-flex;flex-wrap:wrap;}
.pl-seg .pl-btn{border-radius:0;margin-left:-1px;}
.pl-seg .pl-btn:first-child{border-radius:6px 0 0 6px;margin-left:0;}
.pl-seg .pl-btn:last-child{border-radius:0 6px 6px 0;}
.pl-seg .pl-btn[aria-pressed="true"]{position:relative;z-index:1;background:rgba(117,211,255,.18);border-color:var(--accent2);color:var(--accent2);}
.pl-3d-view{position:relative;height:clamp(320px,42vw,640px);overflow:hidden;background:var(--canvas);border:1px solid var(--line);border-radius:10px;cursor:grab;touch-action:none;}
.pl-3d-view.drag{cursor:grabbing;}
.pl-3d-view canvas{display:block;width:100%;height:100%;}
.pl-3d-tip{position:absolute;z-index:2;padding:4px 8px;border:1px solid var(--line);border-radius:6px;background:var(--pop);font-size:13px;white-space:nowrap;pointer-events:none;transform:translate(-50%,calc(-100% - 12px));}
.pl-3d-tip[hidden]{display:none;}
.pl-3d-msg{display:none;}
.pl-3d-off{cursor:default;}
.pl-3d-off .pl-3d-msg{display:flex;align-items:center;justify-content:center;height:100%;padding:20px;text-align:center;color:var(--muted);}
kbd{display:inline-block;padding:0 5px;border:1px solid var(--edge);border-radius:4px;font:12px Arial,sans-serif;}

/* Knöpfe & Felder */
.pl-btn{display:inline-flex;align-items:center;gap:8px;min-height:38px;padding:7px 12px;border:1px solid var(--edge);border-radius:6px;background:var(--soft);font-size:14px;cursor:pointer;transition:background .15s,border-color .15s;}
.pl-btn:hover{background:rgba(117,211,255,.14);border-color:var(--accent2);}
.pl-btn:disabled{opacity:.4;cursor:default;background:none;border-color:var(--edge);}
.pl-btn.danger:hover{background:rgba(255,93,115,.16);border-color:var(--bad);}
.pl-actions{display:flex;flex-wrap:wrap;gap:8px;}
.pl-actions.col{flex-direction:column;}
.pl-actions.col .pl-btn{width:100%;}
.pl-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.pl-row-label{grid-template-columns:1fr auto;}
.pl-row[hidden],.pl-field[hidden]{display:none;}
.pl-row-rot .pl-actions{flex-wrap:nowrap;gap:6px;margin-top:4px;}
.pl-row-rot .pl-btn{flex:1;justify-content:center;padding:7px 6px;font-size:13px;}
.pl-field{display:block;margin-bottom:10px;font-size:12px;color:var(--muted);}
.pl-field input,.pl-field select{display:block;width:100%;margin-top:4px;padding:7px 9px;border:1px solid var(--edge);border-radius:6px;background:var(--field);font-size:14px;color:var(--text);}
.pl-field input:focus,.pl-field select:focus{outline:none;border-color:var(--accent2);}
.pl-check{display:inline-flex;align-items:center;gap:8px;font-size:14px;cursor:pointer;}
.pl-check input{accent-color:var(--accent);width:16px;height:16px;}
.pl-out{display:block;margin:4px 0 6px;font-size:14px;color:var(--accent2);}
.pl-mini{min-height:30px;padding:4px 10px;font-size:13px;}
.pl-check i{color:var(--accent2);}
.pl-range{display:block;margin-bottom:10px;font-size:14px;}
.pl-range output{float:right;color:var(--accent2);}
.pl-range input{display:block;width:100%;margin-top:6px;accent-color:var(--accent);}

/* Farben: Kästchen und 256er-Palette */
.pl-swatch{display:block;width:38px;height:34px;margin-top:4px;border:2px solid var(--edge);border-radius:6px;cursor:pointer;box-shadow:inset 0 0 0 2px var(--panel);}
.pl-swatch:hover{border-color:var(--accent2);}
.pl-colors{display:grid;grid-template-columns:1fr auto;align-items:center;gap:6px 12px;margin-bottom:12px;font-size:14px;}
.pl-colors .pl-swatch{width:44px;height:28px;margin:0;}
.pl-colorpop{position:fixed;z-index:60;padding:10px;background:var(--pop);border:1px solid var(--line);border-radius:10px;box-shadow:0 22px 50px var(--shadow);}
.pl-colorpop[hidden]{display:none;}
.pl-colorpop-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px;font-size:13px;color:var(--muted);}
.pl-colorgrid{display:grid;grid-template-columns:repeat(16,16px);gap:2px;}
.pl-colorgrid button{width:16px;height:16px;border:0;border-radius:3px;cursor:pointer;box-shadow:inset 0 0 0 1px rgba(0,0,0,.15);}
.pl-colorgrid button:hover,.pl-colorgrid button:focus-visible{outline:2px solid var(--accent2);outline-offset:1px;position:relative;z-index:1;}
.pl-colorgrid button[aria-pressed="true"]{outline:2px solid var(--text);outline-offset:1px;}

/* Prüfung */
.pl-checks{list-style:none;margin:12px 0;display:grid;gap:6px;font-size:14px;}
.pl-checks li{display:flex;gap:8px;align-items:flex-start;}
.pl-checks li i{margin-top:3px;}
.pl-checks .ok i{color:var(--ok);}
.pl-checks .warn i{color:var(--warn);}
.pl-checks .bad i{color:var(--bad);}
.pl-legend{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px;font-size:12px;color:var(--muted);}
.pl-legend .sw{display:inline-block;width:14px;height:10px;border-radius:2px;}
.pl-legend .sw.ok{background:rgba(63,179,127,.5);}
.pl-legend .sw.bad{background:rgba(255,93,115,.6);margin-left:8px;}
.pl-stats{display:grid;grid-template-columns:1fr auto;gap:4px 12px;margin-top:12px;padding-top:12px;border-top:1px solid var(--edge2);font-size:13px;}
.pl-stats dt{color:var(--muted);}
.pl-stats dd{text-align:right;}
.pl-note{margin-bottom:12px;font-size:13px;color:var(--muted);}

.pl-toast{position:fixed;left:50%;bottom:24px;z-index:70;transform:translate(-50%,20px);padding:10px 18px;border:1px solid var(--accent);border-radius:8px;background:var(--pop);box-shadow:0 12px 30px var(--shadow);font-size:14px;opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;}
.pl-toast.show{opacity:1;transform:translate(-50%,0);}

@media (max-width:1000px){
.pl-layout{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:820px){
.pl-header{gap:10px;}
.pl-header h1 small{display:none;}
.pl-back span{display:none;}
.pl-back{padding:10px 14px;}
.pl-lang-btn .pl-lang-name{display:none;}
.pl-logo img{height:40px;}
.pl-toolbar .pl-btn span{display:none;}
.pl-cat-btn{padding:8px 10px;}
.pl-drop{position:fixed;top:auto;left:16px !important;right:16px !important;grid-template-columns:1fr 1fr;width:auto;border-radius:8px !important;}
}
@media (max-width:520px){
.pl-header h1{display:none;}
.pl-head-tools{gap:6px;}
}

/* Vorführmodus (planer.html?demo): nur die Zeichenfläche, bildschirmfüllend, ohne Bedienung */
.pl-demo body{min-height:0;overflow:hidden;background:#02070c;}
.pl-demo .pl-header,.pl-demo .pl-intro,.pl-demo .pl-catbar,.pl-demo .pl-toolbar,.pl-demo .pl-hint,.pl-demo .pl-panel,.pl-demo .pl-3d,.pl-demo .pl-toast,.pl-demo .pl-colorpop{display:none !important;}
.pl-demo .pl-main{padding:0;}
.pl-demo .pl-layout{display:block;}
.pl-demo .pl-canvas{display:flex;align-items:center;justify-content:center;height:100vh;max-height:none;overflow:hidden;padding:0;border:0;border-radius:0;pointer-events:none;}