/* ==========================================================
   NVIDIA Lucky Draw — Shared Theme
   品牌色：NVIDIA Green #76B900
   支援 dark / light 兩種主題（[data-theme="light"]）
   ========================================================== */
:root,
[data-theme="dark"]{
  --nv-green:#76b900;
  --nv-green-dark:#5a8f00;
  --nv-green-soft:rgba(118,185,0,.12);
  --bg:#0a0d08;
  --bg-2:#11160e;
  --panel:#161c12;
  --panel-2:#1e2618;
  --border:#2a3622;
  --border-strong:#3d4f30;
  --text:#e9f1e0;
  --text-strong:#ffffff;
  --text-dim:#a8baa0;
  --muted:#7d8f76;
  --input-bg:#0a0d08;
  --code-bg:#000;
  --hover-row:rgba(118,185,0,.04);
  --hover-nav:rgba(255,255,255,.03);
  --warn:#ffb347;
  --danger:#ff6b6b;
  --info:#4dc9ff;
  --shadow:0 6px 20px rgba(0,0,0,.45);
  --radius:8px;
  --radius-lg:12px;
}

/* ===== 白天主題 ===== */
[data-theme="light"]{
  --nv-green:#5a8f00;          /* 提高對比 */
  --nv-green-dark:#456b00;
  --nv-green-soft:rgba(118,185,0,.14);
  --bg:#f4f6f1;
  --bg-2:#ffffff;
  --panel:#ffffff;
  --panel-2:#f0f3ec;
  --border:#dde3d2;
  --border-strong:#b9c5a8;
  --text:#1a2410;
  --text-strong:#0d150a;
  --text-dim:#4a5a3c;
  --muted:#7a8870;
  --input-bg:#ffffff;
  --code-bg:#eef2e5;
  --hover-row:rgba(118,185,0,.08);
  --hover-nav:rgba(118,185,0,.08);
  --shadow:0 6px 20px rgba(60,80,40,.10);
  /* 警示／危險／資訊色：白天模式改用深色以確保對比 */
  --warn:#7a4800;
  --danger:#c0392b;
  --info:#1565a0;
}

/* 白天主題下的個別覆寫（針對原本寫死的 #fff / #000 / 深色背景） */
[data-theme="light"] .sidebar{background:#fafcf6}
[data-theme="light"] .sidebar .brand .name{color:var(--text-strong)}
[data-theme="light"] .sidebar nav a:hover{color:var(--text-strong)}
[data-theme="light"] .sidebar nav a.active{color:var(--text-strong)}
[data-theme="light"] .topbar .crumb b{color:var(--text-strong)}
[data-theme="light"] .content h1.page-title{color:var(--text-strong)}
[data-theme="light"] .card h3.card-title{color:var(--text-strong)}
[data-theme="light"] .stat .value{color:var(--text-strong)}
[data-theme="light"] .modal h3{color:var(--text-strong)}
[data-theme="light"] .tabs a.on,
[data-theme="light"] .tabs a:hover{color:var(--text-strong)}
[data-theme="light"] input[type=text],
[data-theme="light"] input[type=password],
[data-theme="light"] input[type=email],
[data-theme="light"] input[type=number],
[data-theme="light"] input[type=date],
[data-theme="light"] select,
[data-theme="light"] textarea{background:var(--input-bg)}
[data-theme="light"] code,
[data-theme="light"] kbd{background:var(--code-bg);color:#9be03c}
[data-theme="light"] .topbar .lang button.on,
[data-theme="light"] .topbar .theme-tg button.on{color:#fff}
[data-theme="light"] ::-webkit-scrollbar-thumb{background:#c5cfb6}
[data-theme="light"] ::-webkit-scrollbar-thumb:hover{background:#a8b894}
/* 白天模式：深森綠 + 白色字，與淡色頁面形成對比 */
[data-theme="light"] .btn.primary{background:#2e6b00;border-color:#245500;color:#fff;font-weight:700;letter-spacing:.5px}
[data-theme="light"] .btn.primary:hover{background:#3a8600;border-color:#2e6b00;color:#fff}
/* 蓋掉 demo 頁中寫死的 inline color:#fff（白底時不可見） */
[data-theme="light"] [style*="color:#fff"],
[data-theme="light"] [style*="color: #fff"]{color:var(--text-strong) !important}
/* 蓋掉 inline 寫死的進度條 / 黑色內島背景（白天主題變成淺色記號） */
[data-theme="light"] [style*="background:#0a0d08"],
[data-theme="light"] [style*="background: #0a0d08"],
[data-theme="light"] [style*="background:#000"],
[data-theme="light"] [style*="background: #000"]{background:var(--panel-2) !important}
/* 白天主題下 code/kbd 改為淺背景 + 深綠字 */
[data-theme="light"] code,
[data-theme="light"] kbd{background:var(--code-bg);color:var(--nv-green-dark);border:1px solid var(--border)}

*{box-sizing:border-box}
html,body{
  margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:"Segoe UI","Microsoft JhengHei","PingFang TC",system-ui,-apple-system,sans-serif;
  font-size:14.5px;line-height:1.55;-webkit-font-smoothing:antialiased;
  min-height:100vh;
}
a{color:var(--nv-green);text-decoration:none}
a:hover{color:#9be03c}

/* Layout: sidebar + main */
.layout{display:flex;min-height:100vh}
.sidebar{
  width:230px;background:#0d110a;border-right:1px solid var(--border);
  display:flex;flex-direction:column;
}
.sidebar .brand{
  padding:18px 20px;border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:10px;
}
.sidebar .brand .logo{
  width:32px;height:32px;background:var(--nv-green);border-radius:6px;
  display:flex;align-items:center;justify-content:center;color:#000;font-weight:900;font-size:18px;
}
.sidebar .brand .name{color:#fff;font-weight:600;font-size:15px;letter-spacing:.5px;line-height:1.2}
.sidebar .brand .name small{display:block;color:var(--muted);font-weight:400;font-size:11px;letter-spacing:1px}

.sidebar nav{flex:1;padding:14px 0;overflow-y:auto}
.sidebar nav .group-title{
  padding:14px 20px 6px;font-size:11px;letter-spacing:1.5px;color:var(--muted);text-transform:uppercase;
}
.sidebar nav a{
  display:flex;align-items:center;gap:10px;padding:9px 20px;color:var(--text-dim);
  border-left:3px solid transparent;font-size:13.5px;
}
.sidebar nav a:hover{background:var(--hover-nav);color:#fff}
.sidebar nav a.active{
  background:var(--nv-green-soft);border-left-color:var(--nv-green);color:#fff;font-weight:600;
}
.sidebar nav a .ic{width:18px;text-align:center;color:var(--nv-green);font-size:14px}

.sidebar .foot{
  padding:12px 20px;border-top:1px solid var(--border);font-size:11.5px;color:var(--muted);
}

/* Top bar */
.topbar{
  height:54px;background:var(--bg-2);border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;padding:0 24px;
}
.topbar .crumb{color:var(--text-dim);font-size:13px}
.topbar .crumb b{color:var(--text-strong);margin-left:4px}
.topbar .actions{display:flex;align-items:center;gap:14px}

/* 活動切換 chip */
.event-chip{
  display:flex;align-items:center;gap:8px;padding:6px 12px;
  background:var(--panel-2);border:1px solid var(--border);border-radius:8px;
  cursor:pointer;font-family:inherit;font-size:13px;color:var(--text-dim);
  max-width:280px;transition:all .15s;
}
.event-chip:hover{border-color:var(--nv-green-dark);color:var(--text-strong)}
.event-chip .ic{color:var(--nv-green);font-size:14px;flex-shrink:0}
.event-chip .name{
  color:var(--text-strong);font-weight:600;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;max-width:200px;
}
.event-chip.no-event .name{color:var(--warn);font-weight:500}
.event-chip.no-event{border-color:var(--warn)}
.event-chip .arrow{color:var(--text-dim);font-size:9px;flex-shrink:0}

/* 活動選擇對話框 */
#ld-event-picker{
  border:none;border-radius:12px;padding:0;background:transparent;
  max-width:560px;width:92vw;box-shadow:0 24px 64px rgba(0,0,0,.7);
}
#ld-event-picker::backdrop{background:rgba(0,0,0,.65);backdrop-filter:blur(3px)}
#ld-event-picker .ep-body{
  background:var(--panel);border:1px solid var(--border);border-radius:12px;
  padding:24px 26px 20px;color:var(--text);
}
#ld-event-picker .ep-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
#ld-event-picker .ep-head h3{margin:0;color:var(--text-strong);font-size:18px}
#ld-event-picker .ep-close{
  background:transparent;border:0;color:var(--muted);font-size:18px;cursor:pointer;
  width:30px;height:30px;border-radius:6px;
}
#ld-event-picker .ep-close:hover{background:var(--hover-row);color:var(--text-strong)}
#ld-event-picker .ep-desc{margin:0 0 16px;color:var(--text-dim);font-size:13px;line-height:1.6}
#ld-event-picker .ep-list{
  display:flex;flex-direction:column;gap:8px;max-height:60vh;overflow-y:auto;
  margin:0 -4px;padding:0 4px;
}
.ep-item{
  display:flex;align-items:center;gap:14px;padding:14px 16px;
  background:var(--panel-2);border:1px solid var(--border);border-radius:8px;
  cursor:pointer;font-family:inherit;text-align:left;transition:all .15s;
}
.ep-item:hover{border-color:var(--nv-green);background:var(--hover-row)}
.ep-item.on{border-color:var(--nv-green);background:var(--nv-green-soft)}
.ep-item-main{flex:1;min-width:0}
.ep-item-name{
  color:var(--text-strong);font-weight:600;font-size:14.5px;margin-bottom:4px;
  display:flex;align-items:center;gap:8px;
}
.ep-item-meta{color:var(--text-dim);font-size:12px}
.ep-item-id{color:var(--muted);font-size:11px;font-family:"Cascadia Code","Consolas",monospace}
.ep-badge{
  display:inline-block;padding:1px 8px;background:var(--nv-green);color:#000;
  border-radius:10px;font-size:10px;font-weight:600;letter-spacing:1px;
}
#ld-event-picker .ep-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--border);text-align:right}
#ld-event-picker .ep-foot a{color:var(--nv-green);text-decoration:none;font-size:12.5px}
#ld-event-picker .ep-foot a:hover{text-decoration:underline}

.topbar .lang{
  display:flex;border:1px solid var(--border);border-radius:6px;overflow:hidden;font-size:12px;
}
.topbar .lang button{
  background:transparent;border:0;color:var(--text-dim);padding:5px 10px;cursor:pointer;
}
.topbar .lang button.on{background:var(--nv-green);color:#000;font-weight:600}
.topbar .theme-tg{
  display:flex;border:1px solid var(--border);border-radius:6px;overflow:hidden;font-size:13px;
}
.topbar .theme-tg button{
  background:transparent;border:0;color:var(--text-dim);padding:5px 10px;cursor:pointer;
  display:flex;align-items:center;line-height:1;
}
.topbar .theme-tg button.on{background:var(--nv-green);color:#000}
.topbar .theme-tg button:hover:not(.on){color:var(--text-strong)}
.topbar .user{
  display:flex;align-items:center;gap:8px;color:var(--text-dim);font-size:13px;
}
.topbar .user .avatar{
  width:28px;height:28px;border-radius:50%;background:var(--nv-green);
  color:#000;font-weight:bold;display:flex;align-items:center;justify-content:center;font-size:12px;
}

/* Main */
.main{flex:1;display:flex;flex-direction:column;min-width:0}
.content{padding:22px 28px;flex:1}
.content h1.page-title{
  font-size:22px;margin:0 0 4px;color:#fff;font-weight:600;
}
.content .page-desc{color:var(--muted);font-size:13px;margin-bottom:22px}

/* Cards */
.card{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:18px 22px;margin-bottom:18px;
}
.card h3.card-title{
  margin:0 0 14px;font-size:15px;color:#fff;font-weight:600;
  display:flex;align-items:center;gap:8px;padding-bottom:12px;border-bottom:1px solid var(--border);
}
.card h3.card-title::before{
  content:"";width:3px;height:14px;background:var(--nv-green);border-radius:2px;display:inline-block;
}

/* Stats grid */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin-bottom:20px}
.stat{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:16px 18px;position:relative;overflow:hidden;
}
.stat::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--nv-green);
}
.stat .label{color:var(--muted);font-size:12px;letter-spacing:.5px;margin-bottom:6px;text-transform:uppercase}
.stat .value{font-size:28px;font-weight:700;color:#fff;line-height:1.1}
.stat .delta{font-size:12px;color:var(--nv-green);margin-top:4px}
.stat .delta.down{color:var(--danger)}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius);
  border:1px solid var(--border-strong);background:var(--panel-2);color:var(--text);font-size:13px;
  cursor:pointer;font-family:inherit;transition:all .15s;
}
.btn:hover{background:var(--panel);border-color:var(--nv-green)}
/* 夜晴模式：鮮豠草綠 + 黑色字 */
.btn.primary{background:#76B900;color:#000;border-color:#76B900;font-weight:700;letter-spacing:.5px}
.btn.primary:hover{background:#8dd11a;border-color:#8dd11a;color:#000}
.btn.danger{background:transparent;border-color:#a84545;color:var(--danger)}
.btn.danger:hover{background:rgba(255,107,107,.1)}
.btn.ghost{background:transparent}
.btn.sm{padding:5px 12px;font-size:12px}
.btn-group{display:flex;gap:8px;flex-wrap:wrap}

/* Table */
.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
.tbl th,.tbl td{
  padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);vertical-align:middle;
}
.tbl th{
  color:var(--text-dim);font-weight:600;font-size:12px;letter-spacing:.5px;
  text-transform:uppercase;background:var(--panel-2);
}
.tbl tbody tr:hover{background:var(--hover-row)}
.tbl tbody tr:last-child td{border-bottom:none}

/* Badge */
.badge{
  display:inline-block;padding:2px 9px;border-radius:11px;font-size:11px;font-weight:600;
  background:var(--nv-green-soft);color:var(--nv-green);border:1px solid var(--nv-green-dark);
  letter-spacing:.3px;
}
.badge.gray{background:rgba(255,255,255,.06);color:var(--text-dim);border-color:var(--border)}
.badge.warn{background:rgba(255,179,71,.12);color:var(--warn);border-color:#a8762d}
.badge.danger{background:rgba(255,107,107,.12);color:var(--danger);border-color:#a84545}
.badge.info{background:rgba(77,201,255,.12);color:var(--info);border-color:#3a7a96}
/* 白天模式：badge 警示色調整為淺底深字 */
[data-theme="light"] .badge.warn{background:rgba(180,100,0,.10);border-color:#c47a20}
[data-theme="light"] .badge.danger{background:rgba(192,57,43,.10);border-color:#c0392b}
[data-theme="light"] .badge.info{background:rgba(21,101,160,.10);border-color:#1565a0}

/* Alert box（警示方塊） */
.alert-warn{
  padding:12px 14px;border-radius:6px;
  color:var(--warn);border:1px solid var(--warn);
  background:rgba(255,179,71,.08);
}
.alert-danger{
  padding:12px 14px;border-radius:6px;
  color:var(--danger);border:1px solid var(--danger);
  background:rgba(255,107,107,.08);
}
.alert-info{
  padding:12px 14px;border-radius:6px;
  color:var(--info);border:1px solid var(--info);
  background:rgba(77,201,255,.08);
}
/* 白天模式：邊框色加深，背景用淡底色 */
[data-theme="light"] .alert-warn{
  background:rgba(180,100,0,.08);
  border-color:rgba(122,72,0,.45);
}
[data-theme="light"] .alert-danger{
  background:rgba(192,57,43,.08);
  border-color:rgba(192,57,43,.45);
}
[data-theme="light"] .alert-info{
  background:rgba(21,101,160,.08);
  border-color:rgba(21,101,160,.45);
}

/* Form */
.form-row{display:grid;grid-template-columns:140px 1fr;gap:14px;align-items:center;margin-bottom:14px}
.form-row label{color:var(--text-dim);font-size:13px}
.form-row .req{color:var(--danger)}
input[type=text],input[type=password],input[type=email],input[type=number],
input[type=date],input[type=time],input[type=datetime-local],select,textarea{
  background:var(--input-bg);border:1px solid var(--border-strong);color:var(--text);
  padding:8px 12px;border-radius:6px;font-family:inherit;font-size:13.5px;width:100%;outline:none;
  color-scheme:dark;
}
[data-theme="light"] input[type=text],[data-theme="light"] input[type=password],
[data-theme="light"] input[type=email],[data-theme="light"] input[type=number],
[data-theme="light"] input[type=date],[data-theme="light"] input[type=time],
[data-theme="light"] input[type=datetime-local],[data-theme="light"] select,
[data-theme="light"] textarea{color-scheme:light}
input:focus,select:focus,textarea:focus{border-color:var(--nv-green);box-shadow:0 0 0 2px var(--nv-green-soft)}
.help{color:var(--muted);font-size:12px;margin-top:4px}

/* Toolbar */
.toolbar{
  display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:12px;flex-wrap:wrap;
}
@media(min-width:768px){
  .toolbar{flex-wrap:nowrap;}
}
.toolbar .search{
  flex:0 1 280px;position:relative;
}
.toolbar .search input{padding-left:32px}
.toolbar .search::before{
  content:"⌕";position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:14px;
}

/* Tabs */
.tabs{display:flex;border-bottom:1px solid var(--border);margin-bottom:18px;gap:4px}
.tabs a{
  padding:10px 18px;color:var(--text-dim);border-bottom:2px solid transparent;font-size:13px;
}
.tabs a.on{color:var(--text-strong);border-bottom-color:var(--nv-green);font-weight:600}
.tabs a:hover{color:var(--text-strong)}

/* Misc */
.flex{display:flex;align-items:center;gap:10px}
.flex.between{justify-content:space-between}
.muted{color:var(--muted)}
.text-green{color:var(--nv-green)}
hr{border:0;border-top:1px solid var(--border);margin:18px 0}
code,kbd{
  background:var(--code-bg);color:var(--nv-green);padding:2px 6px;border-radius:4px;
  font-family:"Cascadia Code","Consolas",monospace;font-size:12px;
}
::selection{background:var(--nv-green);color:#000}

/* Scrollbar */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#2a3622;border-radius:5px}
::-webkit-scrollbar-thumb:hover{background:#3d4f30}

/* Modal */
.modal-bg{
  position:fixed;inset:0;background:rgba(0,0,0,.7);display:none;align-items:center;justify-content:center;z-index:100;
}
.modal-bg.show{display:flex}
.modal{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:22px 24px;width:480px;max-width:90vw;box-shadow:var(--shadow);
}
.modal h3{margin:0 0 14px;color:#fff;font-size:16px}

/* 編輯用跳窗 (dialog element) */
dialog.dlg-form{
  border:none;border-radius:12px;padding:0;background:transparent;
  max-width:720px;width:94vw;
  box-shadow:0 24px 64px rgba(0,0,0,.7);
}
dialog.dlg-form::backdrop{background:rgba(0,0,0,.6);backdrop-filter:blur(3px)}
dialog.dlg-form .dlg-body{
  background:var(--panel);border:1px solid var(--border);border-radius:12px;
  padding:28px 28px 20px;color:var(--text);
}
dialog.dlg-form h3.dlg-title{
  margin:0 0 18px;color:var(--text-strong);font-size:17px;font-weight:700;
  border-bottom:1px solid var(--border);padding-bottom:12px;
}
dialog.dlg-form .dlg-footer{
  display:flex;justify-content:flex-end;gap:8px;
  margin-top:20px;border-top:1px solid var(--border);padding-top:16px;
}

/* Toast 通知 */
#ld-toast-container{
  position:fixed;bottom:28px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;
  z-index:10000;pointer-events:none;
}
.ld-toast{
  padding:11px 18px 11px 16px;border-radius:8px;font-size:13px;font-weight:600;
  box-shadow:0 4px 20px rgba(0,0,0,.55);max-width:480px;
  white-space:pre-line;text-align:left;pointer-events:none;
  animation:ld-toast-in .2s ease;
  background:#1e1e1e;color:#f0f0f0;
  border-left:4px solid #888;
}
.ld-toast.success{border-left-color:#76b900;background:#1a2200}
.ld-toast.error  {border-left-color:#ff6b6b;background:#2a0e0e}
.ld-toast.warn   {border-left-color:#ffb347;background:#271a00}
.ld-toast.info   {border-left-color:#60aaff;background:#0d1a2e}
@keyframes ld-toast-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* Confirm 對話框 */
#ld-confirm-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.72);
  display:flex;align-items:center;justify-content:center;z-index:9999;
}
#ld-confirm-box{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px 28px 20px;width:360px;max-width:90vw;box-shadow:var(--shadow);
}
#ld-confirm-msg{color:var(--text);margin:0 0 20px;font-size:15px;line-height:1.6}
#ld-confirm-footer{
  display:flex;justify-content:flex-end;gap:8px;
  border-top:1px solid var(--border);padding-top:16px;
}

/* Login page */
.login-wrap{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:
    radial-gradient(circle at 20% 30%,rgba(118,185,0,.15),transparent 50%),
    radial-gradient(circle at 80% 70%,rgba(118,185,0,.08),transparent 50%),
    var(--bg);
}
.login-box{
  width:380px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:36px 32px;box-shadow:var(--shadow);
}
.login-box .logo-big{
  width:56px;height:56px;background:var(--nv-green);border-radius:10px;color:#000;
  display:flex;align-items:center;justify-content:center;font-weight:900;font-size:30px;margin:0 auto 14px;
}
.login-box h1{text-align:center;color:#fff;margin:0 0 4px;font-size:20px}
.login-box .sub{text-align:center;color:var(--muted);margin-bottom:26px;font-size:13px;letter-spacing:1px}
.login-box .form-row{grid-template-columns:1fr;gap:6px}
.login-box .form-row label{font-size:12px;color:var(--text-dim)}
.login-box .btn{width:100%;justify-content:center;padding:11px}
.login-box .footer{text-align:center;color:var(--muted);font-size:12px;margin-top:24px}

/* Operator console */
.operator-wrap{
  display:grid;grid-template-columns:minmax(0,8fr) minmax(260px,2fr) minmax(260px,2fr);grid-template-rows:1fr;gap:20px;padding:22px;height:calc(100vh - 54px);
}
.op-left{min-height:0;overflow:hidden;}
.op-stage{
  background:linear-gradient(135deg,#000 0%,#0d1f00 50%,#000 100%);
  border:1px solid var(--nv-green-dark);border-radius:var(--radius-lg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;overflow:hidden;
  min-height:0;flex:0 0 auto;
  width:100%;aspect-ratio:16 / 9;
}
.op-stage::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 50% 50%,rgba(118,185,0,.1),transparent 70%);
}
.op-stage .stage-prize{position:relative;color:var(--muted);font-size:14px;margin-bottom:8px;letter-spacing:2px;text-transform:uppercase}
.op-stage .stage-prize-name{position:relative;color:#fff;font-size:32px;font-weight:600;margin-bottom:30px}
.op-stage .stage-name{
  position:relative;font-size:64px;font-weight:800;letter-spacing:4px;
  color:var(--nv-green);text-shadow:0 0 30px rgba(118,185,0,.5);
  font-family:"Segoe UI","Microsoft JhengHei",sans-serif;line-height:1.2;text-align:center;
}
.op-stage .stage-company{position:relative;color:#fff;font-size:22px;margin-top:14px;letter-spacing:2px;min-height:1.4em;transition:opacity .4s}
.op-controls{display:flex;flex-direction:column;gap:14px;min-height:0;height:100%;overflow:hidden;}
.op-recent-col{min-height:0;overflow:hidden;display:flex;flex-direction:column;}

/* Stage (full screen) */
.stage-fs{
  position:fixed;inset:0;background:#000;display:flex;flex-direction:column;
  align-items:center;justify-content:center;overflow:hidden;
}
.stage-fs::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 30% 40%,rgba(118,185,0,.12),transparent 60%),
    radial-gradient(circle at 70% 60%,rgba(118,185,0,.08),transparent 60%);
}
.stage-fs .header{
  position:absolute;top:40px;left:0;right:0;text-align:center;
}
.stage-fs .event-name{color:var(--nv-green);font-size:18px;letter-spacing:6px;text-transform:uppercase}
.stage-fs .event-sub{color:var(--text-dim);font-size:14px;margin-top:6px;letter-spacing:2px}
.stage-fs .prize-block{position:relative;text-align:center;margin-bottom:50px}
.stage-fs .prize-label{color:var(--muted);font-size:18px;letter-spacing:8px;text-transform:uppercase;margin-bottom:14px}
.stage-fs .prize-title{color:#fff;font-size:48px;font-weight:600;letter-spacing:2px}
.stage-fs .winner-block{
  position:relative;text-align:center;min-height:200px;
}
.stage-fs .winner-name{
  font-size:120px;font-weight:900;letter-spacing:8px;
  color:var(--nv-green);text-shadow:0 0 60px rgba(118,185,0,.6);
  line-height:1.1;font-family:"Segoe UI","Microsoft JhengHei",sans-serif;
}
.stage-fs .winner-name.rolling{color:inherit;text-shadow:none;animation:roll 0.08s infinite}
@keyframes roll{
  0%{transform:translateY(-2px)}
  50%{transform:translateY(2px)}
  100%{transform:translateY(-2px)}
}
.stage-fs .winner-name.ready{color:inherit;text-shadow:none}
.stage-fs .winner-company{color:#fff;font-size:42px;margin-top:18px;letter-spacing:6px;opacity:0;transition:opacity .6s;min-height:1.4em}
.stage-fs .winner-company.show{opacity:1}
.stage-fs .footer{
  position:absolute;bottom:30px;left:0;right:0;text-align:center;color:var(--muted);font-size:13px;letter-spacing:3px;
}
.stage-fs .start-btn{
  padding:18px 60px;font-size:22px;letter-spacing:6px;font-weight:700;
}

/* Hub (demo index) */
.hub{padding:50px 28px;max-width:1200px;margin:0 auto}
.hub .hero{
  text-align:center;padding:40px 20px 50px;border-bottom:1px solid var(--border);margin-bottom:40px;
  background:radial-gradient(circle at 50% 50%,rgba(118,185,0,.08),transparent 70%);
}
.hub .hero h1{font-size:36px;color:#fff;margin:14px 0 8px;font-weight:600;letter-spacing:1px}
.hub .hero .tag{color:var(--nv-green);letter-spacing:3px;font-size:13px;text-transform:uppercase}
.hub .hero .sub{color:var(--text-dim);font-size:15px;margin-top:14px;max-width:600px;margin-left:auto;margin-right:auto}
.hub .section-title{
  color:var(--nv-green);font-size:13px;letter-spacing:3px;text-transform:uppercase;
  margin:36px 0 14px;font-weight:600;
}
.hub .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.hub .demo-card{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:22px;text-decoration:none;color:var(--text);display:block;transition:all .2s;position:relative;overflow:hidden;
}
.hub .demo-card:hover{
  border-color:var(--nv-green);transform:translateY(-2px);box-shadow:0 10px 30px rgba(118,185,0,.15);
}
.hub .demo-card .ic{
  width:42px;height:42px;border-radius:8px;background:var(--nv-green-soft);
  display:flex;align-items:center;justify-content:center;color:var(--nv-green);font-size:20px;margin-bottom:14px;
  border:1px solid var(--nv-green-dark);
}
.hub .demo-card h3{margin:0 0 6px;color:#fff;font-size:15.5px;font-weight:600}
.hub .demo-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.5}
.hub .demo-card .arrow{
  position:absolute;right:18px;top:22px;color:var(--nv-green);opacity:0;transition:opacity .2s;
}
.hub .demo-card:hover .arrow{opacity:1}