/*
Theme Name: Channel Monitor Dashboard
Author: Independent implementation
Description: A collection-filtered horizontal board of vertical YouTube channel video feeds, with a front-end Add Channel form.
Version: 1.3.0
Requires at least: 6.0
Requires PHP: 7.4
License: GPL-2.0-or-later
Text Domain: channel-monitor-dashboard
*/
:root{color-scheme:light;--cmd-bg:#f6f7f9;--cmd-card:#fff;--cmd-ink:#1e293b;--cmd-muted:#6d7481;--cmd-line:#e1e5eb;--cmd-accent:#2267e8;--cmd-accent-fade:#eaf1ff}
*{box-sizing:border-box}
body{margin:0;background:var(--cmd-bg);color:var(--cmd-ink);font:14px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif}
button,input,select{font:inherit}
button{cursor:pointer}
a{color:inherit;text-decoration:none}
a:hover{color:var(--cmd-accent)}
[hidden]{display:none!important}
:focus-visible{outline:3px solid #8fb5ff!important;outline-offset:2px}
.cmd-app{width:100%;min-height:100vh;display:flex;flex-direction:column;padding:0 22px 10px;overflow:hidden}
.cmd-topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;height:86px;flex-shrink:0}
.cmd-brand{display:flex;align-items:center;gap:12px;min-width:0}
.cmd-brand-icon{width:43px;height:43px;background:#2769eb;color:#fff;border-radius:12px;display:grid;place-items:center;font-size:26px;font-weight:bold;flex-shrink:0}
.cmd-brand-name{font-size:20px;font-weight:750;letter-spacing:-.025em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cmd-brand-caption{font-size:12px;color:var(--cmd-muted)}
.cmd-button{border:1px solid transparent;border-radius:8px;padding:10px 16px;min-height:40px;font-weight:650;display:inline-flex;align-items:center;justify-content:center;gap:8px;white-space:nowrap}
.cmd-button-primary{background:var(--cmd-accent);color:#fff}
.cmd-button-primary:hover{background:#1856c7;color:#fff}
.cmd-button-secondary{background:#f2f4f7;color:#394150;border-color:#e5e7eb}
.cmd-button:disabled{cursor:wait;opacity:.65}
.cmd-filterbar{flex-shrink:0;display:flex;align-items:end;gap:22px;background:#fff;border:1px solid var(--cmd-line);border-radius:12px;padding:15px 17px;margin-bottom:14px}
.cmd-filter-group{width:min(340px,40%);flex-shrink:0}
.cmd-filter-group label{display:block;text-transform:uppercase;letter-spacing:.055em;font-size:11px;font-weight:800;color:var(--cmd-muted);margin:0 0 7px}
.cmd-filter-group select,.cmd-form-field input,.cmd-form-field select{display:block;width:100%;height:44px;background:#fff;border:1px solid #d6dce5;border-radius:8px;padding:0 12px;color:var(--cmd-ink)}
.cmd-filter-group select:focus,.cmd-form-field :is(input,select):focus{outline:2px solid #adc6fc;outline-offset:1px;border-color:var(--cmd-accent)}
.cmd-collection-overview{display:flex;flex-direction:column;justify-content:center;min-width:0;flex:1;padding-bottom:4px;gap:4px}
.cmd-collection-overview strong{font-size:16px;font-weight:750;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cmd-collection-overview span{font-size:12px;color:var(--cmd-muted)}
.cmd-nav{display:flex;gap:8px;align-items:center;padding-bottom:2px}
.cmd-icon-button{width:40px;height:40px;border:1px solid var(--cmd-line);border-radius:9px;background:#fff;color:#4b5563;display:grid;place-items:center;font-size:24px;line-height:1}
.cmd-icon-button:hover:not(:disabled){background:#edf3ff;border-color:#c3d5f9;color:#145acf}
.cmd-icon-button:disabled{opacity:.35;cursor:default}
.cmd-board-wrap{flex:1;min-height:0;display:flex;flex-direction:column;position:relative}
.cmd-placeholder{min-height:300px;height:calc(100vh - 248px);background:#fff;border:1px dashed #ccd5e2;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:30px}
.cmd-placeholder-illustration{color:#b0bdcf;font-size:42px;letter-spacing:8px}
.cmd-placeholder h1{margin:12px 0 6px;font-size:21px;letter-spacing:-.02em}
.cmd-placeholder p{max-width:525px;margin:5px auto;color:var(--cmd-muted)}
.cmd-placeholder .cmd-placeholder-hint{font-size:12px;margin-top:16px;color:#8d96a5}
/* Horizontal scrolling is on the parent board. Vertical scrolling is inside each channel. */
.cmd-board{display:flex;gap:14px;flex-wrap:nowrap;overflow-x:auto;overflow-y:hidden;width:100%;height:calc(100vh - 266px);min-height:390px;max-height:1100px;scrollbar-color:#9cacc4 #e8ecf3;scrollbar-width:auto;scroll-snap-type:x proximity;overscroll-behavior-x:contain;padding:0 2px 10px 0}
.cmd-board::-webkit-scrollbar{height:13px}
.cmd-board::-webkit-scrollbar-track{background:#e5ebf2;border-radius:9px}
.cmd-board::-webkit-scrollbar-thumb{background:#9baabd;border:2px solid #e5ebf2;border-radius:9px}
.cmd-column{flex:0 0 333px;width:333px;min-width:0;height:100%;display:flex;flex-direction:column;overflow:hidden;scroll-snap-align:start;border:1px solid var(--cmd-line);border-radius:11px;background:var(--cmd-card);box-shadow:0 2px 5px rgba(20,30,60,.025)}
.cmd-col-heading{background:#fff;z-index:1;flex-shrink:0;padding:15px 15px 12px;border-bottom:1px solid var(--cmd-line)}
.cmd-col-top{display:flex;align-items:center;gap:10px}
.cmd-col-icon{width:36px;height:36px;border-radius:9px;background:#fbe9e9;display:grid;place-items:center;color:#c42424;font-size:19px;font-weight:bold;flex:0 0 36px}
.cmd-col-name-wrap{min-width:0;flex:1}
.cmd-col-name{font-size:15px;line-height:1.25;margin:0;font-weight:750;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cmd-col-label{margin-top:4px;color:var(--cmd-muted);font-size:11px}
.cmd-col-action{color:#758099;font-size:18px;padding:5px;flex-shrink:0}
.cmd-col-feed{flex:1;overflow-y:auto;overflow-x:hidden;scrollbar-color:#cad2dd #fff;scrollbar-width:thin;overscroll-behavior-y:contain}
.cmd-video{padding:12px 13px 14px;border-bottom:1px solid #eef0f3}
.cmd-video:last-child{border-bottom:0}
.cmd-video-img{display:block;aspect-ratio:16/9;width:100%;object-fit:cover;background:#f0f2f6;border-radius:7px}
.cmd-video-fallback{display:grid;place-items:center;color:#8190a4;font-size:32px}
.cmd-video-title{font-size:13px;font-weight:700;line-height:1.37;margin:8px 0 6px;overflow-wrap:anywhere}
.cmd-video-meta{display:flex;align-items:center;justify-content:space-between;gap:5px;color:var(--cmd-muted);font-size:11px}
.cmd-video-source{background:#f0f3f9;border-radius:5px;padding:3px 6px;font-weight:600}
.cmd-col-status{padding:20px 15px;text-align:center;color:var(--cmd-muted);font-size:12px}
.cmd-col-status strong{display:block;font-size:13px;color:var(--cmd-ink);margin-bottom:6px}
.cmd-load-more{display:block;width:calc(100% - 24px);margin:10px 12px 16px;border:1px solid #c4d4ee;border-radius:8px;background:#eff5ff;color:#2359b4;padding:9px 10px;font-weight:700;font-size:12px}
.cmd-scroll-rail{height:17px;margin:2px 0 0;border-radius:999px;background:#e3e8f0;position:relative;flex-shrink:0;touch-action:none;cursor:ew-resize;border:1px solid #d5dfeb}
.cmd-scroll-thumb{position:absolute;top:2px;bottom:2px;left:0;background:#869dbd;border-radius:999px;min-width:36px;box-shadow:inset 0 0 0 1px #7189ab}
.cmd-scroll-rail:hover .cmd-scroll-thumb,.cmd-scroll-rail:focus-visible .cmd-scroll-thumb{background:#4f7bc0}
.cmd-bottom-note{color:var(--cmd-muted);font-size:12px;min-height:31px;display:flex;align-items:center;justify-content:center;text-align:center;padding-top:4px}
.cmd-overlay{position:fixed;inset:0;z-index:10000;display:flex;align-items:center;justify-content:center;background:rgba(13,20,36,.53);padding:16px}
.cmd-modal{background:#fff;border-radius:13px;padding:23px;width:min(100%,495px);max-height:calc(100vh - 36px);overflow-y:auto;box-shadow:0 18px 60px rgba(0,0,0,.2)}
.cmd-modal-heading{display:flex;align-items:start;justify-content:space-between;gap:15px;margin-bottom:18px}
.cmd-modal-heading h2{font-size:20px;letter-spacing:-.02em;margin:0}
.cmd-modal-heading p{color:var(--cmd-muted);font-size:13px;margin:5px 0 0}
.cmd-close{height:32px;width:32px;font-size:22px}
.cmd-form-field{margin-bottom:16px}
.cmd-form-field label{font-size:13px;font-weight:750;display:block;margin-bottom:7px}
.cmd-form-field small{color:var(--cmd-muted);font-size:11px;display:block;margin-top:5px}
.cmd-form-field label span{color:#cb253a}
.cmd-form-status{font-size:12px;min-height:18px;color:#bb3d3d;margin:0 0 8px}
.cmd-form-status.is-success{color:#17754e}
.cmd-form-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:8px}
.cmd-login-notice p{color:var(--cmd-muted);margin:6px 0 18px}
body.cmd-modal-open{overflow:hidden}
@media(max-width:800px){.cmd-app{padding:0 12px 8px}.cmd-topbar{height:75px}.cmd-filterbar{flex-wrap:wrap;gap:12px}.cmd-filter-group{width:100%}.cmd-collection-overview{max-width:calc(100% - 104px)}.cmd-nav{margin-left:auto}.cmd-board{height:calc(100dvh - 289px);min-height:350px}.cmd-placeholder{height:calc(100dvh - 268px)}.cmd-column{flex-basis:302px;width:302px}}
@media(max-width:490px){.cmd-app{padding:0 9px 6px}.cmd-brand-name{font-size:15px}.cmd-brand-caption{font-size:10px}.cmd-brand-icon{width:35px;height:35px;font-size:20px}.cmd-button{font-size:12px;padding:8px 11px}.cmd-topbar{height:70px;gap:8px}.cmd-filterbar{padding:12px;gap:10px}.cmd-collection-overview strong{font-size:14px}.cmd-collection-overview span{font-size:11px}.cmd-board{height:calc(100dvh - 284px);min-height:320px;gap:9px}.cmd-placeholder{height:calc(100dvh - 263px)}.cmd-column{flex-basis:min(91vw,350px);width:min(91vw,350px)}.cmd-scroll-rail{height:17px;margin:2px 0 0;border-radius:999px;background:#e3e8f0;position:relative;flex-shrink:0;touch-action:none;cursor:ew-resize;border:1px solid #d5dfeb}
.cmd-scroll-thumb{position:absolute;top:2px;bottom:2px;left:0;background:#869dbd;border-radius:999px;min-width:36px;box-shadow:inset 0 0 0 1px #7189ab}
.cmd-scroll-rail:hover .cmd-scroll-thumb,.cmd-scroll-rail:focus-visible .cmd-scroll-thumb{background:#4f7bc0}
.cmd-bottom-note{font-size:10px}}

/* Version 1.3: YouTube Videos-tab inspired independently scrollable channel columns */
.cmd-column{flex-basis:395px;width:395px}
.cmd-col-heading{padding:14px 15px 0}
.cmd-col-icon{background:#fff0f0;color:#e31b23;border-radius:50%}
.cmd-col-tabs{display:flex;align-items:center;gap:18px;color:#818895;margin-top:13px;font-size:12px;font-weight:700}
.cmd-col-tabs span{display:inline-block;padding:0 1px 10px}
.cmd-col-tabs .cmd-col-tab-active{color:#191d25;border-bottom:3px solid #1f2530}
.cmd-player-container{position:relative;aspect-ratio:16/9;background:#0d1016;border-radius:10px;overflow:hidden}
.cmd-player-preview{display:block;width:100%;height:100%;border:0;background:#131821;padding:0;position:relative;cursor:pointer}
.cmd-video-img{width:100%;height:100%;border-radius:0;object-fit:cover}
.cmd-player-preview:hover .cmd-play-icon{background:#ee232b;transform:translate(-50%,-50%) scale(1.06)}
.cmd-play-icon{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:grid;place-items:center;width:56px;height:39px;border-radius:12px;background:rgba(13,16,22,.8);color:#fff;font-size:20px;transition:.15s}
.cmd-player-frame{width:100%;height:100%;border:0}
.cmd-player-close{position:absolute;right:5px;top:5px;width:29px;height:29px;border:0;border-radius:50%;background:rgba(0,0,0,.8);color:white;z-index:3;font-size:21px}
.cmd-video-title{font-size:14px;margin:10px 0 7px}
.cmd-video-actions{display:flex;justify-content:flex-end;color:var(--cmd-accent);font-size:11px;font-weight:650;margin-top:8px}
.cmd-video-actions a:hover{text-decoration:underline}
@media(max-width:800px){.cmd-column{flex-basis:340px;width:340px}}
@media(max-width:490px){.cmd-column{flex-basis:min(91vw,370px);width:min(91vw,370px)}}