/* Base layout */
.eppp-wrap{max-width:1120px;margin:24px auto;padding:18px;border-radius:16px}
.eppp-title{margin:0 0 4px;font-size:28px;font-weight:700}
.eppp-subtitle{margin:0 0 14px}
.eppp-grid{display:grid;grid-template-columns:360px 1fr;gap:16px}
@media (max-width: 1024px){.eppp-grid{grid-template-columns:1fr}}
.eppp-panel{border-radius:12px;padding:14px}
.eppp-viewer{border-radius:12px;padding:12px;min-height:520px}
.eppp-input{width:100%;padding:10px;border-radius:10px;border:1px solid #e5e7eb}
.eppp-label{display:block;margin:8px 0 6px;font-weight:600}
.eppp-btn{display:inline-flex;align-items:center;gap:6px;padding:10px 12px;border-radius:999px;cursor:pointer;border:0}
.eppp-btn-ghost{background:transparent;border:1px solid #e5e7eb}
.eppp-divider{display:flex;align-items:center;gap:10px;margin:10px 0;color:#6b7280}
.eppp-divider::before,.eppp-divider::after{content:"";flex:1;height:1px;background:#e5e7eb}
.eppp-row{display:flex;gap:10px;margin:10px 0}
.eppp-status{margin-top:10px;padding:10px;border-radius:10px}
.eppp-ad-slot{margin:14px 0;padding:10px;border-radius:12px;border:2px dashed #d6b3ff;background:rgba(250,250,255,.75)}
.eppp-ad-slot:empty{display:none}
.eppp-controls{display:flex;justify-content:flex-start;align-items:center;gap:10px;margin-top:6px}
.eppp-output label{display:block;font-size:12px;color:#6b7280;margin-bottom:6px}

/* Sheets list */
.eppp-sheets{display:grid;grid-template-columns:repeat(auto-fill, minmax(200px, 1fr));gap:12px;margin-bottom:10px}
.eppp-sheet{border:1px solid #eef2f7;background:#fff;border-radius:14px;padding:10px;cursor:pointer;position:relative;transition:transform .12s ease, box-shadow .12s ease, border-color .12s ease}
.eppp-sheet:hover{transform:translateY(-2px); box-shadow:0 8px 20px rgba(0,0,0,.06)}
.eppp-sheet .name{font-weight:600}
.eppp-sheet .rows{font-size:12px;color:#6b7280}
.eppp-sheet .check{position:absolute;top:8px;right:8px;width:18px;height:18px;border-radius:999px;background:#e5e7eb;display:none}
.eppp-sheet.selected{border-color:#3b82f6;background:#eff6ff}
.eppp-sheet.selected .check{display:block;background:#3b82f6}

/* Table preview */
.eppp-table-wrap{border:1px solid #eef2f7;background:#fff;border-radius:14px;padding:10px;box-shadow:0 8px 20px rgba(0,0,0,.06)}
.eppp-table-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.eppp-range input{width:90px;padding:6px;border:1px solid #e5e7eb;border-radius:8px;margin:0 4px}
.eppp-chip{padding:6px 10px;border-radius:999px;border:1px solid #e5e7eb;background:#fff;cursor:pointer}
.eppp-table{max-height:420px;overflow:auto;border-radius:8px;border:1px solid #eef2f7}
.eppp-table table{width:100%;border-collapse:collapse;font-size:13px}
.eppp-table th,.eppp-table td{border-bottom:1px solid #f1f5f9;padding:8px 10px;text-align:left}
.eppp-table th{background:#f8fafc;font-weight:600}

/* Gradient theme */
.theme-gradient{font-family:'Poppins',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif; background:linear-gradient(135deg,#5b8cff 0%, #9b5cff 40%, #ff9a5a 100%)}
.theme-gradient .eppp-wrap{background:transparent;border:0;color:#0b1324}
.theme-gradient .eppp-title{color:#ffffff;text-shadow:0 2px 12px rgba(0,0,0,.2)}
.theme-gradient .eppp-subtitle{color:#eef2ff}
.theme-gradient .eppp-grid{background:#ffffff;border-radius:18px;padding:16px;box-shadow:0 18px 40px rgba(0,0,0,.18)}
.theme-gradient .eppp-panel,.theme-gradient .eppp-viewer{background:#ffffff;border:1px solid #eef2f7;box-shadow:0 6px 18px rgba(0,0,0,.06)}
.theme-gradient #eppp-load{background:linear-gradient(90deg,#3b82f6,#a855f7);color:#fff}
.theme-gradient #eppp-download{background:linear-gradient(90deg,#ff4d7e,#ff914d);color:#fff}
.theme-gradient .eppp-status{background:#f0f9ff;border:1px solid #bae6fd;color:#0c4a6e}