.email-campaign-manager-container{--color-primary: #0D47A1;--color-primary-dark: #0A3A80;--color-accent: #FFC107;--color-bg-primary: #1F2937;--color-bg-secondary: #111827;--color-bg-tertiary: #374151;--color-text-primary: #F9FAFB;--color-text-secondary: #D1D5DB;--color-text-muted: #9CA3AF;--color-border: #4B5563;--glass-border: rgba(255, 255, 255, .1);--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 40px;--spacing-3xl: 48px;--spacing-4xl: 56px;--spacing-5xl: 64px;--font-size-xs: 12px;--font-size-sm: 14px;--font-size-base: 16px;--font-size-lg: 18px;--font-size-xl: 20px;--font-size-2xl: 24px;--font-size-4xl: 36px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-2xl: 24px;--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--transition-fast: .15s ease;--transition-base: .3s ease;padding:var(--spacing-xl) 0;background-color:var(--color-bg-secondary);min-height:100%;color:var(--color-text-primary)}.admin-email-header{text-align:center;margin-bottom:var(--spacing-3xl)}.admin-email-title{color:#fff;font-size:var(--font-size-4xl);margin-bottom:var(--spacing-sm);font-weight:800}.admin-email-subtitle{color:var(--color-text-muted);font-size:var(--font-size-lg)}.admin-email-content{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-2xl);max-width:1400px;margin:0 auto;padding:0 var(--spacing-md)}@media(max-width:1200px){.admin-email-content{grid-template-columns:1fr}}.admin-email-form-panel,.admin-email-preview-panel{background:var(--color-bg-primary);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);padding:var(--spacing-xl);border:1px solid var(--color-border)}.admin-panel-heading{font-size:var(--font-size-xl);color:var(--color-primary-light, #3b82f6);margin-bottom:var(--spacing-lg);display:flex;align-items:center;gap:var(--spacing-sm);border-bottom:2px solid var(--color-bg-tertiary);padding-bottom:var(--spacing-sm);font-weight:700}.form-group{margin-bottom:var(--spacing-md)}.form-group label{display:block;font-weight:600;margin-bottom:var(--spacing-xs);color:var(--color-text-secondary);font-size:var(--font-size-sm)}.form-control{width:100%;padding:10px 14px;border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:#1a202c;color:#fff;font-size:var(--font-size-base);transition:all var(--transition-fast)}.form-control:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #0d47a133}textarea.form-control{resize:vertical;min-height:120px}.theme-selector{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-sm);margin-bottom:var(--spacing-lg)}.theme-card{border:2px solid var(--color-border);border-radius:var(--radius-md);padding:var(--spacing-md);cursor:pointer;transition:all var(--transition-base);text-align:center;background:#2d3748}.theme-card:hover{transform:translateY(-2px);border-color:#4a5568}.theme-card.active{border-color:var(--color-accent);background:#ffc1071a;box-shadow:0 0 0 1px var(--color-accent)}.theme-card-icon{font-size:24px;margin-bottom:var(--spacing-xs)}.theme-card-title{font-weight:700;font-size:var(--font-size-sm);color:var(--color-text-primary)}.advanced-settings-toggle{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-sm) 0;cursor:pointer;color:var(--color-text-muted);font-size:var(--font-size-sm);font-weight:500;border-top:1px dashed var(--color-border);margin-top:var(--spacing-md);-webkit-user-select:none;user-select:none}.advanced-settings-toggle:hover{color:#fff}.advanced-settings-content{background:#2d3748;padding:var(--spacing-md);border-radius:var(--radius-md);margin-bottom:var(--spacing-md);animation:fadeIn .3s ease-in-out}.status-message{padding:var(--spacing-md);border-radius:var(--radius-md);margin-top:var(--spacing-md);font-weight:600;text-align:center}.status-success{background:#065f46;color:#34d399;border:1px solid #059669}.status-error{background:#7f1d1d;color:#f87171;border:1px solid #b91c1c}.status-loading{background:#1e3a8a;color:#60a5fa;border:1px solid #2563eb}.preview-container{border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;background:#0f172a;height:calc(100% - 60px);min-height:600px;display:flex;flex-direction:column}.preview-header{background:#1e293b;padding:10px 16px;border-bottom:1px solid var(--color-border);font-size:var(--font-size-xs);color:var(--color-text-muted);display:flex;justify-content:space-between}.preview-body{flex:1;padding:0;overflow-y:auto}.smtp-modal-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#000000b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;justify-content:center;align-items:center;z-index:1000;animation:modalOverlayFadeIn .3s ease}.smtp-modal{background:#1f2937;width:95%;max-width:550px;border-radius:var(--radius-lg);box-shadow:0 25px 50px -12px #00000080;animation:modalContentPop .4s cubic-bezier(.34,1.56,.64,1);overflow:hidden;border:1px solid var(--color-border);max-height:90vh;display:flex;flex-direction:column}.modal-header-elite{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;border-bottom:1px solid var(--color-border);background:#111827}.modal-content-body{padding:24px;overflow-y:auto;flex:1}.btn{padding:10px 20px;border-radius:var(--radius-md);font-weight:700;cursor:pointer;transition:all .2s;border:none;font-size:var(--font-size-sm)}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-1px)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes modalOverlayFadeIn{0%{opacity:0}to{opacity:1}}@keyframes modalContentPop{0%{transform:scale(.9) translateY(10px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}