:root{
  --c1:#0d1117;--c2:#161b22;--c3:#21262d;--c4:#30363d;
  --accent:#2ea043;--accent2:#1f6feb;--danger:#da3633;
  --text:#e6edf3;--muted:#8b949e;--radius:10px;--trans:.18s ease;
  --sidebar:300px;--header:56px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Segoe UI",system-ui,sans-serif;background:var(--c1);color:var(--text);min-height:100vh}

/* ===== LOGIN ===== */
.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;
  background:radial-gradient(ellipse at 30% 20%,#0f2027 0%,#203a43 50%,#2c5364 100%)}
.login-wrap{width:100%;max-width:420px;padding:1rem}
.login-box{background:rgba(22,27,34,.95);border:1px solid var(--c4);border-radius:18px;
  padding:2.5rem;backdrop-filter:blur(12px);box-shadow:0 24px 64px rgba(0,0,0,.5)}
.brand{text-align:center;margin-bottom:2rem}
.brand-icon{font-size:3.2rem;line-height:1;margin-bottom:.5rem}
.brand h1{font-size:2rem;font-weight:700;color:var(--text);letter-spacing:-1px}
.brand h1 span{color:var(--accent)}
.brand-sub{color:var(--muted);font-size:.9rem;margin-top:.25rem}
.field{margin-bottom:1.2rem}
.field label{display:block;font-size:.82rem;font-weight:600;color:var(--muted);margin-bottom:.45rem;text-transform:uppercase;letter-spacing:.06em}
.field input{width:100%;background:var(--c1);border:1.5px solid var(--c4);color:var(--text);
  border-radius:var(--radius);padding:.75rem 1rem;font-size:.95rem;transition:border-color var(--trans)}
.field input:focus{outline:none;border-color:var(--accent2);box-shadow:0 0 0 3px rgba(31,111,235,.15)}
.pass-wrap{position:relative}
.pass-wrap input{padding-right:3rem}
.eye-btn{position:absolute;right:.75rem;top:50%;transform:translateY(-50%);background:none;border:none;
  color:var(--muted);cursor:pointer;font-size:1rem;padding:.25rem;transition:color var(--trans)}
.eye-btn:hover{color:var(--text)}
.msg{padding:.6rem 1rem;border-radius:var(--radius);font-size:.88rem;margin-bottom:1rem}
.msg.error{background:rgba(218,54,51,.15);border:1px solid var(--danger);color:#ff7b7b}
.msg.success{background:rgba(46,160,67,.15);border:1px solid var(--accent);color:#56d364}
.hidden{display:none!important}
.btn-login{width:100%;padding:.8rem;background:var(--accent);color:#fff;border:none;
  border-radius:var(--radius);font-size:1rem;font-weight:600;cursor:pointer;
  transition:all var(--trans);display:flex;align-items:center;justify-content:center;gap:.5rem;margin-top:.5rem}
.btn-login:hover{background:#3fb954;transform:translateY(-1px);box-shadow:0 6px 20px rgba(46,160,67,.35)}
.btn-login:active{transform:translateY(0)}
.btn-login:disabled{opacity:.6;cursor:not-allowed;transform:none}
.spinner{width:18px;height:18px;border:2.5px solid rgba(255,255,255,.3);border-top-color:#fff;
  border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.login-footer{text-align:center;margin-top:1.5rem;color:var(--muted);font-size:.78rem}

/* ===== APP LAYOUT ===== */
.app-page{display:flex;flex-direction:column;height:100vh;overflow:hidden}
.app-header{height:var(--header);background:var(--c2);border-bottom:1px solid var(--c4);
  display:flex;align-items:center;justify-content:space-between;padding:0 1rem;flex-shrink:0;z-index:100}
.app-header-left{display:flex;align-items:center;gap:.75rem}
.sidebar-toggle{background:none;border:none;color:var(--text);font-size:1.3rem;cursor:pointer;padding:.3rem;border-radius:6px}
.sidebar-toggle:hover{background:var(--c3)}
.app-logo{font-size:1.05rem;font-weight:600}
.app-logo strong{color:var(--accent)}
.app-header-center{flex:1;display:flex;justify-content:center;padding:0 1rem}
.now-playing{display:flex;align-items:center;gap:.5rem;background:var(--c3);
  border:1px solid var(--c4);border-radius:20px;padding:.3rem .9rem;font-size:.82rem;
  max-width:320px;overflow:hidden;white-space:nowrap}
.now-playing span{overflow:hidden;text-overflow:ellipsis}
#npName{color:var(--text);font-weight:500}
.app-header-right{display:flex;align-items:center;gap:.5rem}
.user-badge{background:var(--accent2);color:#fff;border-radius:50%;width:32px;height:32px;
  display:flex;align-items:center;justify-content:center;font-size:.9rem;cursor:pointer}
.btn-logout{background:none;border:1px solid var(--c4);color:var(--muted);border-radius:8px;
  padding:.3rem .6rem;cursor:pointer;font-size:1rem;transition:all var(--trans)}
.btn-logout:hover{border-color:var(--danger);color:var(--danger)}

.app-layout{display:flex;flex:1;overflow:hidden}

/* ===== SIDEBAR ===== */
.ch-sidebar{width:var(--sidebar);background:var(--c2);border-right:1px solid var(--c4);
  display:flex;flex-direction:column;flex-shrink:0;transition:transform var(--trans);overflow:hidden}
.ch-sidebar.collapsed{transform:translateX(calc(-1 * var(--sidebar)))}
.sidebar-head{padding:.75rem;display:flex;flex-direction:column;gap:.5rem;border-bottom:1px solid var(--c4)}
.search-box{background:var(--c1);border:1px solid var(--c4);color:var(--text);
  border-radius:var(--radius);padding:.5rem .75rem;font-size:.88rem;width:100%}
.search-box:focus{outline:none;border-color:var(--accent2)}
.cat-select{background:var(--c1);border:1px solid var(--c4);color:var(--text);
  border-radius:var(--radius);padding:.45rem .75rem;font-size:.85rem;width:100%}
.format-filters{display:flex;gap:.3rem;flex-wrap:wrap}
.fmt-btn{background:var(--c3);border:1px solid var(--c4);color:var(--muted);
  border-radius:20px;padding:.25rem .65rem;font-size:.75rem;cursor:pointer;transition:all var(--trans)}
.fmt-btn.active,.fmt-btn:hover{background:rgba(46,160,67,.2);border-color:var(--accent);color:var(--accent)}
.ch-count{padding:.4rem .75rem;font-size:.75rem;color:var(--muted);border-bottom:1px solid var(--c4)}
.ch-list{flex:1;overflow-y:auto;list-style:none;padding:.25rem 0}
.ch-list::-webkit-scrollbar{width:4px}
.ch-list::-webkit-scrollbar-thumb{background:var(--c4);border-radius:4px}
.ch-item{display:flex;align-items:center;gap:.65rem;padding:.6rem .75rem;cursor:pointer;
  border-left:3px solid transparent;transition:all var(--trans)}
.ch-item:hover{background:rgba(255,255,255,.04)}
.ch-item.active{background:rgba(46,160,67,.12);border-left-color:var(--accent)}
.ch-num{font-size:.72rem;color:var(--muted);width:22px;text-align:right;flex-shrink:0}
.ch-logo{width:38px;height:38px;border-radius:7px;background:var(--c3);display:flex;
  align-items:center;justify-content:center;font-size:.8rem;color:var(--muted);flex-shrink:0;overflow:hidden}
.ch-logo img{width:100%;height:100%;object-fit:contain}
.ch-info{flex:1;min-width:0}
.ch-name{font-size:.88rem;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ch-cat{font-size:.73rem;color:var(--muted);margin-top:.1rem}
.type-pill{font-size:.65rem;font-weight:700;padding:.15rem .45rem;border-radius:10px;flex-shrink:0}
.pill-m3u8{background:rgba(31,111,235,.2);color:#79c0ff}
.pill-ts{background:rgba(210,153,34,.2);color:#e3b341}
.pill-mpd{background:rgba(139,92,246,.2);color:#c084fc}
.pill-m3u{background:rgba(46,160,67,.2);color:#56d364}
.pill-html{background:rgba(255,107,53,.2);color:#ff8c42}

/* ===== PLAYER ===== */
.app-main{flex:1;display:flex;flex-direction:column;overflow:hidden;background:#000;min-width:0}
.player-box{flex:1;position:relative;background:#0a0a0a;display:flex;align-items:center;justify-content:center;overflow:hidden}
.player-placeholder{display:flex;flex-direction:column;align-items:center;gap:.75rem;color:var(--muted);padding:2rem;text-align:center}
.ph-icon{font-size:5rem;opacity:.4}
.ph-title{font-size:1.3rem;font-weight:600;color:var(--text);opacity:.5}
.ph-sub{font-size:.88rem;max-width:280px;line-height:1.5}
.player-overlay{position:absolute;inset:0;background:rgba(0,0,0,.65);display:flex;
  flex-direction:column;align-items:center;justify-content:center;gap:.75rem;z-index:10}
.overlay-spinner{width:44px;height:44px;border:3px solid rgba(255,255,255,.2);border-top-color:var(--accent);
  border-radius:50%;animation:spin .8s linear infinite}
#overlayMsg{color:var(--muted);font-size:.88rem}

/* ===== CHANNEL INFO BAR ===== */
.ch-info-bar{background:var(--c2);border-top:1px solid var(--c4);padding:.5rem 1rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-shrink:0}
.ch-info-left{display:flex;align-items:center;gap:.75rem}
.ch-info-logo{width:36px;height:36px;border-radius:7px;background:var(--c3);display:flex;
  align-items:center;justify-content:center;font-size:.8rem;color:var(--muted);overflow:hidden;flex-shrink:0}
.ch-info-logo img{width:100%;height:100%;object-fit:contain}
.ch-info-name{font-size:.95rem;font-weight:600}
.ch-info-meta{font-size:.75rem;color:var(--muted)}
.ch-info-right{display:flex;align-items:center;gap:.5rem}
.type-badge{font-size:.72rem;font-weight:700;padding:.2rem .55rem;border-radius:10px;background:var(--c3);color:var(--muted)}
.btn-fs,.btn-prev,.btn-next{background:var(--c3);border:1px solid var(--c4);color:var(--text);
  border-radius:8px;padding:.35rem .65rem;cursor:pointer;font-size:.9rem;transition:all var(--trans)}
.btn-fs:hover,.btn-prev:hover,.btn-next:hover{background:var(--c4)}

/* ===== MODAL ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.75);z-index:300;
  display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px);padding:1rem}
.modal-overlay.hidden{display:none!important}
.modal-box{background:var(--c2);border:1px solid var(--c4);border-radius:14px;width:480px;max-width:95vw;max-height:85vh;overflow:auto}
.modal-hdr{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.25rem;border-bottom:1px solid var(--c4);font-weight:600}
.modal-close{background:none;border:none;color:var(--muted);font-size:1.1rem;cursor:pointer}
.modal-close:hover{color:var(--danger)}
.modal-body{padding:1.25rem}
.modal-body pre{background:var(--c1);border:1px solid var(--c4);border-radius:8px;padding:1rem;
  font-size:.78rem;color:#56d364;white-space:pre-wrap;max-height:280px;overflow-y:auto}
.modal-ftr{display:flex;gap:.75rem;padding:1rem 1.25rem;border-top:1px solid var(--c4)}
.btn-copy,.btn-dl{flex:1;padding:.6rem;border:none;border-radius:8px;cursor:pointer;font-size:.88rem;font-weight:500;transition:all var(--trans)}
.btn-copy{background:var(--accent2);color:#fff}
.btn-dl{background:var(--accent);color:#fff}
.btn-copy:hover,.btn-dl:hover{filter:brightness(1.15)}

/* ===== TOAST ===== */
.toast{position:fixed;bottom:1.5rem;right:1.5rem;background:var(--c2);border:1px solid var(--c4);
  border-radius:10px;padding:.75rem 1.1rem;font-size:.88rem;z-index:999;
  box-shadow:0 8px 32px rgba(0,0,0,.5);animation:slideIn .25s ease;max-width:300px}
.toast.hidden{display:none}
.toast.ok{border-color:var(--accent);color:#56d364}
.toast.err{border-color:var(--danger);color:#ff7b7b}
@keyframes slideIn{from{opacity:0;transform:translateX(50px)}to{opacity:1;transform:translateX(0)}}

/* ===== USER INFO ===== */
.info-row{display:flex;justify-content:space-between;align-items:center;padding:.45rem 0;border-bottom:1px solid var(--c4);font-size:.88rem}
.info-row:last-child{border:none}
.info-label{color:var(--muted)}
.info-val{font-weight:500}
.badge-ok{color:#56d364}.badge-no{color:#ff7b7b}.badge-admin{color:#79c0ff}.badge-viewer{color:#8b949e}

/* ===== RESPONSIVE ===== */
@media(max-width:640px){
  .ch-sidebar{position:fixed;top:var(--header);left:0;height:calc(100vh - var(--header));z-index:200}
  .ch-sidebar.collapsed{transform:translateX(-100%)}
  .app-header-center{display:none}
  :root{--sidebar:280px}
}