/* V30.3 Classic presentation layer. Application logic remains in app.js. */
:root{--classic-blue:#3478f6;--classic-purple:#7158d9;--classic-green:#24a06b;--classic-red:#df4967;--classic-shadow:0 12px 34px rgba(52,68,116,.10)}
body{background:radial-gradient(circle at 8% 0%,rgba(129,105,230,.13),transparent 27rem),linear-gradient(135deg,#f8f5ff 0%,#f3f7ff 48%,#f7fbff 100%)}
.shell{grid-template-columns:260px minmax(0,1fr)}
.sidebar{background:linear-gradient(180deg,rgba(255,255,255,.98),rgba(248,246,255,.96));box-shadow:8px 0 30px rgba(71,67,118,.07);padding:22px 15px}
.brand{margin:0 8px 24px;padding:11px;border-radius:16px;background:linear-gradient(135deg,#f0eaff,#f8fbff)}
.mark{background:linear-gradient(135deg,var(--classic-purple),#9879ef);box-shadow:0 8px 20px rgba(113,88,217,.25)}
.nav-label{padding:0 12px;margin-top:8px;font-weight:800;color:#8a82a2}
.nav a{padding:11px 12px;margin:2px 0;border:1px solid transparent;border-radius:11px}
.nav a:hover{transform:translateX(2px);background:#f2effc;border-color:#e8e0fa}
.nav a.active{background:linear-gradient(90deg,#ede7ff,#f7f5ff);box-shadow:inset 3px 0 var(--classic-purple);border-color:#e1d7fa}
.nav i{width:27px;height:27px;display:grid;place-items:center;border-radius:8px;background:#f1eef8;color:#6757a6}
.nav a.active i{background:#7560d9;color:#fff}
.classic-nav-section{font-size:10px;letter-spacing:1.35px;color:#9991ad;font-weight:800;padding:17px 12px 6px}
.topbar{position:sticky;top:0;z-index:8;padding:12px 24px;background:rgba(255,255,255,.88);backdrop-filter:blur(18px);box-shadow:0 5px 20px rgba(51,62,105,.06)}
.topbar .actions{row-gap:6px}.topbar button,.topbar select{background:#fff}
.content{padding:22px 25px 36px;max-width:none}
.page-head{padding:18px 21px;margin-bottom:18px;border:1px solid rgba(218,215,239,.85);border-radius:17px;background:rgba(255,255,255,.78);box-shadow:var(--classic-shadow)}
.page-head h1{font-size:25px}.eyebrow{margin-bottom:6px}
.panel{border-color:#e2e5f0;border-radius:16px;box-shadow:var(--classic-shadow);padding:18px;background:rgba(255,255,255,.94)}
.cards{gap:13px}.stat{position:relative;overflow:hidden;border:0;border-radius:16px;box-shadow:var(--classic-shadow);min-height:135px}
.stat:after{content:"";position:absolute;right:-25px;bottom:-35px;width:95px;height:95px;border-radius:50%;background:rgba(255,255,255,.22)}
.stat:nth-child(1){background:linear-gradient(135deg,#f0ecff,#fff);border-left:4px solid var(--classic-purple)}
.stat:nth-child(2){background:linear-gradient(135deg,#e7f8f0,#fff);border-left:4px solid var(--classic-green)}
.stat:nth-child(3){background:linear-gradient(135deg,#e7f3ff,#fff);border-left:4px solid var(--classic-blue)}
.stat:nth-child(4){background:linear-gradient(135deg,#fff0f2,#fff);border-left:4px solid var(--classic-red)}
.stat b{font-size:34px}.stat-icon{box-shadow:0 6px 14px rgba(71,75,120,.12)}
.toolbar{padding:11px;border-radius:12px;background:#f7f8fc;border:1px solid #e7e9f2;margin-bottom:14px}
.toolbar .field{min-width:145px}.toolbar .field input{min-width:140px}
button{transition:.16s ease;border-radius:10px}button:hover{transform:translateY(-1px)}
button.primary{background:linear-gradient(135deg,#6d5bd1,#8875e4);box-shadow:0 7px 16px rgba(109,91,209,.22)}
button.danger{background:#fff4f6;border-color:#ffd3dc}
.table-wrap{max-height:70vh;background:#fff;box-shadow:inset 0 0 0 1px rgba(231,233,242,.4)}
th{background:#f3f4f9;color:#595f75;font-weight:800}tbody tr:nth-child(even){background:#fbfbfd}
td{padding:11px 12px}.badge{border-radius:999px;padding:5px 9px}
.classic-tools{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin-left:auto}.classic-tools button.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.classic-summary{display:flex;gap:9px;flex-wrap:wrap;margin:0 0 14px}.classic-summary span{padding:7px 11px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:12px;font-weight:700;box-shadow:0 4px 12px rgba(55,64,99,.06)}
.classic-quick{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:-4px 0 18px}.classic-quick a{display:flex;align-items:center;gap:10px;padding:13px 15px;background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:13px;box-shadow:0 8px 20px rgba(55,64,99,.07);font-weight:800;color:var(--text)}
.classic-quick a:hover{border-color:var(--accent);transform:translateY(-1px)}.classic-quick i{font-style:normal;font-size:20px}
.classic-view-tabs{display:flex;gap:6px;flex-wrap:wrap;padding:7px;border-radius:12px;background:#f4f4f9;margin-bottom:13px}.classic-view-tabs button{border:0;background:transparent;padding:8px 15px}.classic-view-tabs button.active{background:#fff;color:var(--accent);box-shadow:0 4px 13px rgba(58,66,104,.10)}
.device-card-mode .table-wrap{border:0;box-shadow:none;overflow:visible;max-height:none;background:transparent}.device-card-mode table,.device-card-mode tbody{display:block}.device-card-mode thead{display:none}.device-card-mode tbody{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.device-card-mode tr{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:17px;background:#fff!important;border:1px solid var(--line);border-radius:15px;box-shadow:var(--classic-shadow)}.device-card-mode td{display:block;border:0;padding:3px 5px;min-width:0}.device-card-mode td:first-child{grid-column:1/-1;font-size:15px;border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:3px}.device-card-mode td:last-child{grid-column:1/-1;text-align:right}
.month-card{box-shadow:0 8px 20px rgba(55,64,99,.07)}dialog{border-radius:18px;box-shadow:0 35px 110px rgba(21,31,69,.35)}.modal-head{position:sticky;top:-24px;background:var(--surface);padding:15px 0 12px;z-index:3;border-bottom:1px solid var(--line)}
.form-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.field.full{grid-column:1/-1}.chat-box{min-height:330px;background:#fafafe;border:1px solid var(--line);border-radius:14px;padding:12px}.sidebar-foot{border-top:1px solid var(--line);margin-top:auto}
body[data-theme=original] .panel,body[data-theme=original] .page-head,body[data-theme=original] .stat,body[data-theme=original] .classic-quick a{background:rgba(255,254,245,.88);backdrop-filter:blur(15px)}body[data-theme=dark] .toolbar,body[data-theme=dark] .classic-view-tabs,body[data-theme=dark] .chat-box{background:#192132}body[data-theme=dark] tbody tr:nth-child(even){background:#242e42}
@media(max-width:1250px){.device-card-mode tbody{grid-template-columns:repeat(2,minmax(0,1fr))}.form-grid{grid-template-columns:1fr 1fr}.classic-quick{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){.shell{display:block}.classic-quick{grid-template-columns:1fr 1fr}.device-card-mode tbody{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.page-head{padding:15px}.classic-nav-section{display:none}}