@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--bg-color:#0f172a;--bg-secondary:#1e293b;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent:#3b82f6;--accent-hover:#2563eb;--border-color:#334155;--success:#10b981;--danger:#ef4444}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);min-height:100vh;font-family:Inter,sans-serif;overflow-x:hidden}h1,h2,h3{margin-bottom:1rem;font-weight:600}h1{color:#fff;font-size:2rem}h2{font-size:1.5rem}.app-container{min-height:100vh;display:flex}.sidebar{background-color:var(--bg-secondary);border-right:1px solid var(--border-color);flex-direction:column;width:260px;padding:2rem 1rem;display:flex}.sidebar-logo{color:var(--accent);align-items:center;gap:.5rem;margin-bottom:2.5rem;padding:0 1rem;font-size:1.5rem;font-weight:700;display:flex}.nav-link{color:var(--text-secondary);border-radius:8px;align-items:center;gap:.75rem;margin-bottom:.5rem;padding:.75rem 1rem;font-weight:500;text-decoration:none;transition:all .2s;display:flex}.nav-link:hover{color:var(--text-primary);background-color:#ffffff0d}.nav-link.active{color:var(--accent);background-color:#3b82f61a}.main-content{flex:1;padding:2.5rem 3rem;overflow-y:auto}.card{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:12px;padding:1.5rem;box-shadow:0 10px 15px -3px #0000001a}.glass-card{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#1e293bb3;border:1px solid #ffffff1a;border-radius:16px;padding:2rem}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem;margin-bottom:2rem;display:grid}.stat-card{flex-direction:column;gap:.5rem;display:flex}.stat-card .stat-value{color:var(--text-primary);font-size:2.5rem;font-weight:700}.stat-card .stat-label{color:var(--text-secondary);font-weight:500}.btn{background-color:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-size:.95rem;font-weight:500;transition:background-color .2s;display:inline-flex}.btn:hover{background-color:var(--accent-hover)}.btn-secondary{background-color:#334155}.btn-secondary:hover{background-color:#475569}.btn-danger{background-color:var(--danger)}.btn-danger:hover{background-color:#dc2626}.btn:disabled{opacity:.6;cursor:not-allowed}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--border-color);padding:1rem}th{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;font-size:.85rem;font-weight:500}td{color:var(--text-primary)}.badge{border-radius:9999px;padding:.25rem .75rem;font-size:.85rem;font-weight:500}.badge-active{color:#34d399;background:#10b9811a}.badge-unsubscribed{color:#f87171;background:#ef44441a}.badge-draft{color:#cbd5e1;background:#94a3b81a}.badge-sent{color:#60a5fa;background:#3b82f61a}.form-group{margin-bottom:1.5rem}.form-group label{color:var(--text-secondary);margin-bottom:.5rem;font-weight:500;display:block}.form-control{border:1px solid var(--border-color);color:#fff;background-color:#0f172a;border-radius:8px;width:100%;padding:.75rem 1rem;font-family:inherit;font-size:1rem;transition:border-color .2s}.form-control:focus{border-color:var(--accent);outline:none}textarea.form-control{resize:vertical;min-height:150px}.header-flex{justify-content:space-between;align-items:center;margin-bottom:2rem;display:flex}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:.4s ease-out forwards fadeIn}.preview-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;background:#000000b3;justify-content:center;align-items:center;padding:2rem;animation:.2s ease-out fadeIn;display:flex;position:fixed;inset:0}.preview-modal{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:16px;flex-direction:column;width:100%;max-width:900px;height:100%;max-height:85vh;display:flex;overflow:hidden;box-shadow:0 25px 50px -12px #00000080}.preview-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;gap:1rem;padding:1rem 1.5rem;display:flex}.preview-close-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:6px;align-items:center;padding:.4rem;transition:all .15s;display:flex}.preview-close-btn:hover{color:var(--text-primary);background:#ffffff1a}.preview-device-toggle{background:var(--bg-color);border-radius:8px;gap:2px;padding:3px;display:flex}.preview-device-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:6px;align-items:center;padding:.4rem .6rem;transition:all .15s;display:flex}.preview-device-btn:hover{color:var(--text-primary)}.preview-device-btn.active{background:var(--accent);color:#fff}.preview-email-chrome{border-bottom:1px solid var(--border-color);background:#00000026;padding:1rem 1.5rem}.preview-email-meta{flex-direction:column;display:flex}.preview-avatar{color:#fff;background:linear-gradient(135deg,#3b82f6,#8b5cf6);border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;font-size:.85rem;font-weight:700;display:flex}.preview-body{background:#fff;flex:1;overflow:auto}.preview-iframe{background:#fff;border:none;width:100%;height:100%;min-height:400px}