:root{--bg-deep:#07080f;--bg-panel:#0d0f1a;--bg-surface:#141726;--bg-input:#1a1e30;--border:rgba(80,110,160,.15);--text-primary:rgba(220,230,245,.95);--text-secondary:rgba(170,185,210,.75);--text-muted:rgba(130,150,180,.5);--accent:#4a8cd8;--danger:#d84a4a;--success:#4ade80;--warn:#f59e0b;--radius:12px;--font-body:'DM Sans',sans-serif;--font-display:'Syne',sans-serif}
*{box-sizing:border-box}
.admin-body{margin:0;padding:0;min-height:100vh;background:radial-gradient(ellipse at 20% 0%,rgba(30,50,90,.3),transparent 50%),var(--bg-deep);color:var(--text-primary);font-family:var(--font-body);-webkit-font-smoothing:antialiased}

/* Login */
.login-card{max-width:360px;margin:120px auto;background:var(--bg-panel);border:1px solid var(--border);border-radius:20px;padding:40px 32px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.4)}
.login-icon{font-size:2.5rem;color:var(--accent);margin-bottom:16px}
.login-card h2{font-family:var(--font-display);margin:0 0 20px}
.login-card input{width:100%;padding:13px 16px;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-input);color:var(--text-primary);font-family:var(--font-body);font-size:.95rem;outline:none;margin-bottom:14px}
.login-card button{width:100%;padding:13px;border:none;border-radius:var(--radius);background:var(--accent);color:white;font-family:var(--font-body);font-size:.95rem;font-weight:500;cursor:pointer;transition:.2s}
.login-card button:hover{filter:brightness(1.15)}
.login-error{background:rgba(216,74,74,.15);border:1px solid rgba(216,74,74,.3);color:#f87171;padding:10px;border-radius:8px;margin-bottom:14px;font-size:.88rem}

/* Admin wrapper */
.admin-wrapper{max-width:1100px;margin:0 auto;padding:24px 20px}
.admin-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:12px}
.admin-title{font-family:var(--font-display);font-size:1.2rem;font-weight:600;display:flex;align-items:center;gap:10px}
.admin-actions{display:flex;gap:8px;flex-wrap:wrap}

/* Buttons */
.abtn{display:inline-flex;align-items:center;gap:6px;padding:10px 18px;border-radius:var(--radius);border:none;font-family:var(--font-body);font-size:.85rem;font-weight:500;cursor:pointer;transition:.2s;text-decoration:none;color:var(--text-primary)}
.abtn-primary{background:var(--accent);color:white}
.abtn-success{background:rgba(74,222,128,.2);color:var(--success);border:1px solid rgba(74,222,128,.3)}
.abtn-warn{background:rgba(245,158,11,.15);color:var(--warn);border:1px solid rgba(245,158,11,.3)}
.abtn-danger{background:rgba(216,74,74,.15);color:#f87171;border:1px solid rgba(216,74,74,.3)}
.abtn-ghost{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}
.abtn-small{padding:7px 12px;font-size:.78rem}
.abtn:hover{filter:brightness(1.15);transform:translateY(-1px)}
.abtn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* Upload */
.upload-section{background:var(--bg-panel);border:1px solid var(--border);border-radius:16px;padding:20px;margin-bottom:24px}
.upload-section h3{font-family:var(--font-display);margin:0 0 14px;font-size:1rem;display:flex;align-items:center;gap:8px}
.upload-form{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.upload-form input[type=text]{flex:1;min-width:180px;padding:10px 14px;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-input);color:var(--text-primary);font-family:var(--font-body);font-size:.88rem;outline:none}
.file-label{display:inline-flex;align-items:center;gap:6px;padding:10px 16px;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-surface);color:var(--text-secondary);cursor:pointer;font-size:.85rem;transition:.2s;white-space:nowrap}
.file-label:hover{border-color:var(--accent);color:var(--accent)}
.upload-status{padding:8px 0;font-size:.85rem;color:var(--text-muted)}
.upload-status.success{color:var(--success)}
.upload-status.error{color:#f87171}

/* Presentation list */
.presentations-section{background:var(--bg-panel);border:1px solid var(--border);border-radius:16px;padding:20px}
.presentations-section h3{font-family:var(--font-display);margin:0 0 14px;font-size:1rem;display:flex;align-items:center;gap:8px}
.admin-pres-list{display:flex;flex-direction:column;gap:10px}
.admin-pres-card{display:flex;align-items:center;gap:14px;padding:12px;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);transition:.2s}
.admin-pres-card:hover{border-color:rgba(80,110,160,.3)}
.apc-thumb{width:80px;height:50px;border-radius:6px;overflow:hidden;background:#0a0c16;flex-shrink:0}
.apc-thumb img{width:100%;height:100%;object-fit:contain}
.apc-info{flex:1;min-width:0}
.apc-title{font-weight:600;font-size:.9rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.apc-meta{font-size:.78rem;color:var(--text-muted);margin-top:2px}
.status-badge{padding:2px 8px;border-radius:10px;font-size:.7rem;font-weight:600;text-transform:uppercase}
.status-draft{background:rgba(245,158,11,.15);color:var(--warn)}
.status-published{background:rgba(74,222,128,.15);color:var(--success)}
.apc-actions{display:flex;gap:6px;flex-wrap:wrap}

/* Slide editor */
.slides-editor{display:flex;flex-direction:column;gap:16px;margin-top:16px}
.slide-edit-card{display:flex;gap:16px;background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px;align-items:flex-start}
.sec-thumb{flex:0 0 240px;position:relative}
.sec-thumb img{width:100%;border-radius:6px;border:1px solid var(--border)}
.sec-page{position:absolute;top:6px;left:6px;background:rgba(0,0,0,.7);color:white;padding:3px 8px;border-radius:6px;font-size:.7rem;font-weight:600}
.sec-editor{flex:1;display:flex;flex-direction:column;gap:8px;min-width:0}
.sec-editor label{font-size:.78rem;color:var(--text-muted);font-weight:500}
.sec-text-preview{font-size:.78rem;color:var(--text-muted);background:var(--bg-surface);padding:8px 10px;border-radius:8px;max-height:60px;overflow:hidden}
.sec-extracted{margin-top:4px;color:var(--text-secondary)}
.narration-input{width:100%;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--bg-input);color:var(--text-primary);font-family:var(--font-body);font-size:.88rem;resize:vertical;outline:none;min-height:80px}
.narration-input:focus{border-color:rgba(80,140,220,.4);box-shadow:0 0 0 3px rgba(74,140,216,.15)}
.sec-actions{display:flex;align-items:center;gap:10px}
.gen-status{font-size:.78rem}
.empty-state.small{padding:30px;font-size:.9rem}

@media(max-width:768px){
    .admin-wrapper{padding:16px 12px}
    .slide-edit-card{flex-direction:column}
    .sec-thumb{flex:none;width:100%;max-width:300px}
    .upload-form{flex-direction:column}
    .upload-form input[type=text]{width:100%}
    .apc-actions{margin-top:8px}
    .admin-pres-card{flex-direction:column;align-items:flex-start}
}