*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#f8f9fa;--bg2:#ffffff;--bg3:#f1f3f5;
  --purple:#d32f2f;--teal:#c62828;--orange:#FF9F43;--pink:#b71c1c;
  --text:#212529;--text2:#495057;--border:#dee2e6;
  --card:#ffffff;--sidebar-w:260px;
}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);min-height:100vh}

/* ── LOGIN ── */
.login-overlay{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:var(--bg);z-index:100;overflow:hidden}
.login-bg-orbs{position:absolute;inset:0;pointer-events:none}
.orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:.35}
.orb-1{width:400px;height:400px;background:var(--purple);top:-100px;left:-100px}
.orb-2{width:350px;height:350px;background:var(--teal);bottom:-80px;right:-80px}
.orb-3{width:250px;height:250px;background:var(--pink);top:50%;left:50%;transform:translate(-50%,-50%)}
.login-card{position:relative;background:var(--card);border:1px solid var(--border);border-radius:24px;padding:48px 40px;width:100%;max-width:420px;box-shadow:0 24px 80px rgba(108,99,255,.2)}
.login-logo{display:flex;align-items:center;gap:12px;justify-content:center;margin-bottom:8px}
.logo-icon svg,.logo-icon-sm svg{width:40px;height:40px}
.login-brand{font-family:'Outfit',sans-serif;font-size:2rem;font-weight:800;background:linear-gradient(135deg,var(--purple),var(--teal));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.login-tagline{text-align:center;color:var(--text2);font-size:.9rem;margin-bottom:32px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:.85rem;font-weight:600;color:var(--text2);margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}
.input-wrap{position:relative;display:flex;align-items:center}
.input-icon{position:absolute;left:14px;font-size:1rem}
.input-wrap input{width:100%;background:var(--bg3);border:1px solid var(--border);border-radius:12px;padding:14px 14px 14px 42px;color:var(--text);font-size:.95rem;outline:none;transition:border-color .2s}
.input-wrap input:focus{border-color:var(--purple)}
.login-error{background:rgba(255,107,157,.15);border:1px solid var(--pink);border-radius:10px;padding:10px 14px;color:var(--pink);font-size:.85rem;margin-bottom:16px}
.btn-login{width:100%;background:linear-gradient(135deg,var(--purple),var(--teal));border:none;border-radius:12px;padding:15px;color:#fff;font-size:1rem;font-weight:700;cursor:pointer;transition:opacity .2s,transform .1s;display:flex;align-items:center;justify-content:center;gap:10px}
.btn-login:hover{opacity:.9;transform:translateY(-1px)}
.btn-loader{width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
.login-hint{text-align:center;color:var(--text2);font-size:.8rem;margin-top:20px;opacity:.6}
.hidden{display:none!important}

/* ── DASHBOARD LAYOUT ── */
.dashboard{display:flex;height:100vh;overflow:hidden}

/* ── SIDEBAR ── */
.sidebar{width:var(--sidebar-w);background:var(--bg2);border-right:1px solid var(--border);display:flex;flex-direction:column;transition:width .25s;flex-shrink:0}
.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:20px 16px;border-bottom:1px solid var(--border)}
.sidebar-logo{display:flex;align-items:center;gap:10px}
.logo-icon-sm svg{width:32px;height:32px}
.sidebar-brand{font-family:'Outfit',sans-serif;font-weight:800;font-size:1.2rem;background:linear-gradient(135deg,var(--purple),var(--teal));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.sidebar-toggle{background:none;border:none;color:var(--text2);cursor:pointer;padding:6px;border-radius:8px;display:flex}
.sidebar-toggle svg{width:18px;height:18px}
.sidebar-nav{flex:1;padding:16px 10px;display:flex;flex-direction:column;gap:4px}
.nav-item{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:12px;text-decoration:none;color:var(--text2);font-size:.9rem;font-weight:500;transition:all .2s}
.nav-item:hover{background:var(--bg3);color:var(--text)}
.nav-item.active{background:rgba(108,99,255,.15);color:var(--purple);border:1px solid rgba(108,99,255,.2)}
.nav-icon{font-size:1.1rem;min-width:22px;text-align:center}
.sidebar-footer{padding:16px;border-top:1px solid var(--border);display:flex;align-items:center;gap:10px}
.admin-badge{display:flex;align-items:center;gap:10px;flex:1;min-width:0}
.admin-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--purple),var(--teal));display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;flex-shrink:0}
.admin-info{min-width:0}
.admin-name{font-size:.85rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.admin-role{font-size:.75rem;color:var(--text2)}
.btn-logout{background:none;border:none;color:var(--text2);cursor:pointer;padding:8px;border-radius:8px;display:flex;transition:color .2s}
.btn-logout:hover{color:var(--pink)}
.btn-logout svg{width:18px;height:18px}

/* ── MAIN ── */
.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden}
.topbar{padding:20px 28px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;background:var(--bg2)}
.topbar-left{display:flex;align-items:center;gap:16px}
.mobile-menu-btn{display:none;background:none;border:none;color:var(--text2);cursor:pointer;padding:6px}
.mobile-menu-btn svg{width:20px;height:20px}
.page-title{font-size:1.4rem;font-weight:700}
.page-subtitle{font-size:.82rem;color:var(--text2);margin-top:2px}
.topbar-right{display:flex;align-items:center;gap:16px}
.time-badge{font-size:.8rem;color:var(--text2);background:var(--bg3);padding:6px 14px;border-radius:20px;border:1px solid var(--border)}
.notification-dot{width:10px;height:10px;border-radius:50%;background:var(--teal);box-shadow:0 0 8px var(--teal)}

/* ── VIEWS ── */
.view{flex:1;overflow-y:auto;padding:28px}
.view.active{display:block}

/* ── STATS ── */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:28px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:24px;position:relative;overflow:hidden;display:flex;align-items:center;gap:16px;transition:transform .2s}
.stat-card:hover{transform:translateY(-3px)}
.stat-icon{font-size:2rem;z-index:1}
.stat-info h3{font-size:1.8rem;font-weight:800;line-height:1}
.stat-info p{font-size:.82rem;color:var(--text2);margin-top:4px}
.stat-bg-icon{position:absolute;right:12px;top:50%;transform:translateY(-50%);font-size:5rem;opacity:.08}
.stat-purple{border-left:3px solid var(--purple)}
.stat-teal{border-left:3px solid var(--teal)}
.stat-orange{border-left:3px solid var(--orange)}
.stat-pink{border-left:3px solid var(--pink)}

/* ── CARDS ── */
.dashboard-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:24px}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.card-header h3{font-size:1rem;font-weight:700}
.btn-sm{background:rgba(108,99,255,.15);border:1px solid rgba(108,99,255,.3);color:var(--purple);padding:6px 14px;border-radius:8px;cursor:pointer;font-size:.82rem;font-weight:600;transition:all .2s}
.btn-sm:hover{background:rgba(108,99,255,.25)}
.recent-list{display:flex;flex-direction:column;gap:10px}
.recent-item{display:flex;align-items:center;gap:12px;padding:12px;background:var(--bg3);border-radius:12px;cursor:pointer;transition:background .2s}
.recent-item:hover{background:var(--bg2)}
.ri-icon{width:36px;height:36px;border-radius:10px;background:rgba(108,99,255,.15);display:flex;align-items:center;justify-content:center;font-size:1.1rem}
.ri-info{flex:1;min-width:0}
.ri-title{font-size:.88rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ri-meta{font-size:.75rem;color:var(--text2)}
.ri-badge{font-size:.72rem;padding:3px 10px;border-radius:20px;background:rgba(62,207,207,.1);color:var(--teal);border:1px solid rgba(62,207,207,.2);white-space:nowrap}

.qa-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.qa-btn{background:var(--bg3);border:1px solid var(--border);border-radius:14px;padding:18px 12px;color:var(--text);cursor:pointer;font-size:.85rem;font-weight:600;display:flex;flex-direction:column;align-items:center;gap:8px;transition:all .2s}
.qa-btn:hover{background:rgba(108,99,255,.1);border-color:rgba(108,99,255,.3);color:var(--purple)}
.qa-icon{font-size:1.6rem}

/* ── SESSIONS ── */
.view-toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;gap:16px}
.toolbar-left{display:flex;align-items:center;gap:12px;flex:1}
.search-input{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:10px 16px;color:var(--text);font-size:.9rem;outline:none;width:280px;transition:border-color .2s}
.search-input:focus{border-color:var(--purple)}
.select-filter{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:10px 14px;color:var(--text);font-size:.88rem;outline:none;cursor:pointer}
.select-filter.full{width:100%}
.btn-primary{display:flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--purple),#8B7CF8);border:none;border-radius:12px;padding:11px 20px;color:#fff;font-size:.9rem;font-weight:700;cursor:pointer;transition:opacity .2s,transform .1s;white-space:nowrap}
.btn-primary:hover{opacity:.88;transform:translateY(-1px)}
.btn-primary svg{width:16px;height:16px}
.full-width{width:100%;justify-content:center}
.sessions-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.session-card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:22px;cursor:pointer;transition:all .2s;position:relative}
.session-card:hover{transform:translateY(-3px);border-color:rgba(108,99,255,.4);box-shadow:0 12px 40px rgba(108,99,255,.15)}
.sc-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:12px}
.sc-cat{font-size:.72rem;padding:4px 10px;border-radius:20px;background:rgba(108,99,255,.1);color:var(--purple);border:1px solid rgba(108,99,255,.2);font-weight:600}
.sc-actions{display:flex;gap:6px}
.sc-btn{background:none;border:none;cursor:pointer;padding:4px;border-radius:6px;font-size:1rem;transition:transform .15s;opacity:.7}
.sc-btn:hover{opacity:1;transform:scale(1.2)}
.sc-title{font-size:1rem;font-weight:700;margin-bottom:6px;line-height:1.3}
.sc-desc{font-size:.82rem;color:var(--text2);margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sc-footer{display:flex;align-items:center;justify-content:space-between;font-size:.78rem;color:var(--text2)}
.sc-files{display:flex;align-items:center;gap:5px}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--teal)}
.full-width.empty-state{grid-column:1/-1}
.empty-state{text-align:center;color:var(--text2);padding:48px 20px}
.empty-icon{font-size:3rem;margin-bottom:12px}

/* ── UPLOAD ── */
.upload-layout{display:grid;grid-template-columns:1fr 320px;gap:20px;align-items:start}
.upload-card{display:flex;flex-direction:column;gap:20px}
.upload-session-select label{display:block;font-size:.82rem;font-weight:600;color:var(--text2);margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}
.drop-zone{border:2px dashed var(--border);border-radius:16px;position:relative;transition:all .2s;cursor:pointer}
.drop-zone:hover,.drop-zone.drag-over{border-color:var(--purple);background:rgba(108,99,255,.04)}
.drop-zone-inner{padding:48px 32px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:8px}
.drop-icon{font-size:3rem;margin-bottom:8px}
.drop-zone h3{font-size:1.1rem;font-weight:700}
.drop-zone p{font-size:.85rem;color:var(--text2)}
.drop-hint{font-size:.78rem!important;opacity:.7}
.file-input{position:absolute;inset:0;opacity:0;cursor:pointer}
.file-queue{display:flex;flex-direction:column;gap:14px}
.fq-header{display:flex;align-items:center;justify-content:space-between}
.fq-header h4{font-size:.92rem;font-weight:700}
.btn-ghost{background:none;border:none;color:var(--text2);cursor:pointer;font-size:.82rem;padding:4px 8px;border-radius:6px;transition:color .2s}
.btn-ghost:hover{color:var(--pink)}
.badge{background:rgba(108,99,255,.2);color:var(--purple);border-radius:20px;padding:2px 8px;font-size:.78rem;font-weight:700;margin-left:6px}
.fq-list{display:flex;flex-direction:column;gap:8px;max-height:250px;overflow-y:auto}
.fq-item{display:flex;align-items:center;gap:10px;background:var(--bg3);border-radius:10px;padding:10px 12px}
.fq-icon{font-size:1.2rem}
.fq-info{flex:1;min-width:0}
.fq-name{font-size:.83rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fq-size{font-size:.75rem;color:var(--text2)}
.fq-remove{background:none;border:none;color:var(--text2);cursor:pointer;padding:2px;font-size:.9rem;transition:color .2s}
.fq-remove:hover{color:var(--pink)}

.guidelines-list{list-style:none;display:flex;flex-direction:column;gap:14px}
.guidelines-list li{display:flex;align-items:flex-start;gap:12px;font-size:.85rem}
.g-icon{font-size:1.2rem;min-width:24px}
.guidelines-list strong{display:block;font-weight:600;margin-bottom:2px}

/* ── MODAL ── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;z-index:200;padding:20px}
.modal{background:var(--bg2);border:1px solid var(--border);border-radius:24px;width:100%;max-width:560px;max-height:90vh;overflow-y:auto}
.modal-lg{max-width:720px}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:24px 28px;border-bottom:1px solid var(--border)}
.modal-header h3{font-size:1.1rem;font-weight:700}
.modal-close{background:none;border:none;color:var(--text2);cursor:pointer;font-size:1.2rem;padding:4px;border-radius:8px;transition:color .2s}
.modal-close:hover{color:var(--pink)}
.modal-form,.modal-body{padding:24px 28px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-row.three-cols{grid-template-columns:1fr 1fr 1fr}
.modal-form .form-group{margin-bottom:16px}
.modal-form .form-group label{display:block;font-size:.82rem;font-weight:600;color:var(--text2);margin-bottom:8px;text-transform:uppercase;letter-spacing:.4px}
.label-hint{text-transform:none;font-weight:400;opacity:.7;font-size:.78rem}
.modal-form input,.modal-form select,.modal-form textarea{width:100%;background:var(--bg3);border:1px solid var(--border);border-radius:12px;padding:11px 14px;color:var(--text);font-size:.9rem;outline:none;transition:border-color .2s;font-family:inherit}
.modal-form input:focus,.modal-form select:focus,.modal-form textarea:focus{border-color:var(--purple)}
.modal-form textarea{resize:vertical}
.modal-actions{display:flex;align-items:center;justify-content:flex-end;gap:12px;margin-top:8px}

.detail-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px}
.detail-meta-item{background:var(--bg3);border-radius:12px;padding:14px;text-align:center}
.dm-label{font-size:.75rem;color:var(--text2);text-transform:uppercase;letter-spacing:.4px;margin-bottom:4px}
.dm-value{font-size:.95rem;font-weight:700}
.detail-section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.detail-section-header h4{font-size:.95rem;font-weight:700}
.files-list{display:flex;flex-direction:column;gap:8px}
.file-item{display:flex;align-items:center;gap:12px;background:var(--bg3);border-radius:12px;padding:12px 14px}
.file-icon{font-size:1.4rem}
.file-info{flex:1;min-width:0}
.file-name{font-size:.85rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.file-meta{font-size:.75rem;color:var(--text2);margin-top:2px}
.file-actions{display:flex;gap:8px}
.file-actions a,.file-actions button{background:none;border:none;cursor:pointer;padding:4px;border-radius:6px;font-size:.85rem;color:var(--text2);text-decoration:none;transition:color .2s}
.file-actions a:hover{color:var(--teal)}
.file-actions button:hover{color:var(--pink)}

/* ── TOAST ── */
.toast{position:fixed;bottom:28px;right:28px;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:14px 20px;display:flex;align-items:center;gap:10px;font-size:.88rem;font-weight:600;box-shadow:0 8px 32px rgba(0,0,0,.4);z-index:999;animation:slideUp .3s ease}
.toast.success{border-color:var(--teal)}
.toast.error{border-color:var(--pink)}
@keyframes slideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

/* ── PROGRESS ── */
.progress-overlay{position:fixed;inset:0;background:rgba(0,0,0,.7);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:300}
.progress-card{background:var(--bg2);border:1px solid var(--border);border-radius:24px;padding:40px;text-align:center;width:360px}
.progress-icon{font-size:3rem;margin-bottom:16px;animation:bounce 1s ease infinite}
.progress-card h3{font-size:1.1rem;font-weight:700;margin-bottom:20px}
.progress-bar-wrap{background:var(--bg3);border-radius:20px;height:8px;overflow:hidden;margin-bottom:12px}
.progress-bar{height:100%;background:linear-gradient(90deg,var(--purple),var(--teal));border-radius:20px;transition:width .3s;width:0}
#progressLabel{font-size:.85rem;color:var(--text2)}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── SCROLLBAR ── */
::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}

/* ── RESPONSIVE ── */
@media(max-width:1100px){.stats-grid{grid-template-columns:repeat(2,1fr)}.dashboard-cards{grid-template-columns:1fr}.upload-layout{grid-template-columns:1fr}}
@media(max-width:768px){.sidebar{position:fixed;left:-100%;top:0;bottom:0;z-index:150;transition:left .25s}.sidebar.open{left:0}.mobile-menu-btn{display:flex}.sessions-grid{grid-template-columns:1fr}.form-row,.form-row.three-cols{grid-template-columns:1fr}.detail-meta{grid-template-columns:1fr 1fr}}