:root{--primary:#002da8;--primary-hover:#033cdb;--dark-blue:#182d87;--background:#f7f8fa;--surface:#fff;--text-main:#111827;--text-secondary:#4b5563;--text-light:#6b7280;--border-light:#e5e7eb;--border-medium:#d1d5db;--success:#16a34a;--warning:#f59e0b;--error:#dc2626;--font-family:"DM Sans", "Inter", sans-serif;--font-fallback:"Inter", sans-serif;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #00000014, 0 2px 4px -1px #0000000a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d;--transition:all .2s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}html,body{background-color:var(--background);height:100%;color:var(--text-main);font-family:var(--font-family);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:14px;overflow-x:hidden}body{flex-direction:column;min-height:100vh;display:flex}h1,h2,h3,h4,h5,h6{font-family:var(--font-family);color:var(--dark-blue);font-weight:700}p{color:var(--text-secondary);line-height:1.5}a{color:var(--primary);transition:var(--transition);text-decoration:none}a:hover{color:var(--primary-hover)}.app-container{width:100%;min-height:100vh;display:flex}.sidebar{background-color:var(--surface);border-right:1px solid var(--border-light);z-index:10;width:280px;height:100vh;box-shadow:var(--shadow-sm);flex-direction:column;padding:24px 16px;display:flex;position:fixed;top:0;left:0}.main-content{background-color:var(--background);flex-direction:column;flex:1;min-height:100vh;margin-left:280px;display:flex}.topbar{background-color:var(--surface);border-bottom:1px solid var(--border-light);z-index:5;justify-content:space-between;align-items:center;height:64px;padding:0 32px;display:flex;position:sticky;top:0}.page-body{flex:1;width:100%;padding:32px}.card{background-color:var(--surface);border:1px solid var(--border-light);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:24px}.card-title{color:var(--dark-blue);margin-bottom:16px;font-size:16px}.btn{font-family:var(--font-family);border-radius:var(--radius-md);cursor:pointer;height:40px;transition:var(--transition);white-space:nowrap;border:none;justify-content:center;align-items:center;gap:8px;padding:0 16px;font-size:14px;font-weight:600;display:inline-flex}.btn-primary{background-color:var(--primary);color:var(--surface)}.btn-primary:hover{background-color:var(--primary-hover)}.btn-primary:disabled{background-color:var(--border-medium);color:var(--text-light);cursor:not-allowed}.btn-secondary{background-color:var(--surface);border:1px solid var(--border-medium);color:var(--text-main)}.btn-secondary:hover{background-color:var(--background);border-color:var(--text-light)}.btn-danger{background-color:var(--error);color:var(--surface)}.btn-danger:hover{filter:brightness(.9)}.nav-menu{flex-direction:column;gap:4px;margin-bottom:20px;display:flex}.nav-menu-item{color:var(--text-secondary);border-radius:var(--radius-md);cursor:pointer;transition:var(--transition);text-align:left;background:0 0;border:none;align-items:center;gap:10px;padding:10px 14px;font-size:13px;font-weight:600;display:flex}.nav-menu-item:hover{background-color:var(--background);color:var(--primary)}.nav-menu-item.active{color:var(--primary);background-color:#002da80f}.form-group{margin-bottom:16px}.form-label{text-transform:uppercase;color:var(--text-secondary);letter-spacing:.05em;margin-bottom:6px;font-size:11px;font-weight:600;display:block}.form-input{border:1px solid var(--border-medium);border-radius:var(--radius-md);background-color:var(--surface);width:100%;height:40px;color:var(--text-main);font-family:var(--font-family);transition:var(--transition);padding:0 12px;font-size:14px}.form-input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #002da826}.form-input::placeholder{color:var(--text-light)}.form-input:disabled{background-color:var(--background);color:var(--text-light);cursor:not-allowed}.badge{text-transform:uppercase;letter-spacing:.02em;border-radius:9999px;align-items:center;padding:2px 8px;font-size:11px;font-weight:600;display:inline-flex}.badge-success{color:var(--success);background-color:#16a34a1a}.badge-warning{color:var(--warning);background-color:#f59e0b1a}.badge-error{color:var(--error);background-color:#dc26261a}.builder-layout{grid-template-columns:1.1fr .9fr;gap:24px;height:calc(100vh - 128px);display:grid;overflow:hidden}@media (max-width:1024px){.builder-layout{grid-template-columns:1fr;height:auto;overflow:visible}}.editor-pane{background-color:var(--surface);border:1px solid var(--border-light);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);flex-direction:column;display:flex;overflow:hidden}.preview-pane{flex-direction:column;gap:20px;display:flex;overflow-y:auto}.tabs-nav{border-bottom:1px solid var(--border-light);background-color:var(--background);scrollbar-width:none;padding:0 12px;display:flex;overflow-x:auto}.tabs-nav::-webkit-scrollbar{display:none}.tab-btn{color:var(--text-secondary);cursor:pointer;transition:var(--transition);white-space:nowrap;background:0 0;border:none;border-bottom:2px solid #0000;padding:14px 16px;font-size:13px;font-weight:600}.tab-btn:hover{color:var(--primary)}.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary)}.tab-content{flex:1;padding:24px;overflow-y:auto}.color-picker-wrapper{align-items:center;gap:12px;display:flex}.color-input-native{border:1px solid var(--border-medium);border-radius:var(--radius-md);cursor:pointer;background:0 0;width:44px;height:40px;padding:0}.color-presets{flex-wrap:wrap;gap:8px;display:flex}.preset-dot{border:2px solid var(--surface);outline:1px solid var(--border-medium);cursor:pointer;width:24px;height:24px;transition:var(--transition);border-radius:50%}.preset-dot:hover,.preset-dot.active{outline-color:var(--primary);transform:scale(1.15)}.templates-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;display:grid}.template-card{border:1px solid var(--border-medium);border-radius:var(--radius-md);cursor:pointer;transition:var(--transition);text-align:center;color:var(--text-secondary);background-color:var(--background);padding:16px;font-weight:600}.template-card:hover{border-color:var(--primary);background-color:var(--surface);color:var(--primary)}.template-card.active{border-color:var(--primary);color:var(--primary);box-shadow:0 0 0 2px var(--primary);background-color:#002da80d}.email-mockup{background-color:var(--surface);border:1px solid var(--border-medium);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);flex-direction:column;display:flex;overflow:hidden}.email-mockup-header{border-bottom:1px solid var(--border-medium);background-color:#ebf0f6;align-items:center;gap:12px;padding:12px 16px;display:flex}.window-dots{gap:6px;display:flex}.dot{border-radius:50%;width:10px;height:10px}.dot-red{background-color:#ff5f56}.dot-yellow{background-color:#ffbd2e}.dot-green{background-color:#27c93f}.email-mockup-subject{color:var(--text-secondary);background-color:var(--surface);border-radius:var(--radius-sm);border:1px solid var(--border-light);flex:1;padding:2px 8px;font-size:12px}.email-mockup-body{background-color:var(--surface);justify-content:flex-start;align-items:flex-start;min-height:220px;padding:24px;display:flex;overflow-x:auto}.upload-zone{border:2px dashed var(--border-medium);border-radius:var(--radius-md);text-align:center;cursor:pointer;transition:var(--transition);color:var(--text-secondary);background-color:var(--background);padding:24px}.upload-zone:hover{border-color:var(--primary);background-color:#002da805}.modal-overlay{z-index:100;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background-color:#11182799;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal-content{background-color:var(--surface);border-radius:var(--radius-lg);width:100%;max-width:440px;box-shadow:var(--shadow-lg);border:1px solid var(--border-light);padding:32px;position:relative}.modal-title{color:var(--dark-blue);margin-bottom:24px;font-size:20px}.modal-close{cursor:pointer;color:var(--text-light);transition:var(--transition);background:0 0;border:none;font-size:20px;position:absolute;top:16px;right:16px}.modal-close:hover{color:var(--text-main)}.saved-signatures-list{flex-direction:column;flex:1;gap:12px;margin-top:20px;display:flex;overflow-y:auto}.saved-signature-item{border:1px solid var(--border-light);border-radius:var(--radius-md);background-color:var(--background);cursor:pointer;transition:var(--transition);justify-content:space-between;align-items:center;padding:12px;display:flex}.saved-signature-item:hover,.saved-signature-item.active{border-color:var(--primary);background-color:var(--surface)}.saved-signature-name{color:var(--dark-blue);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:600;overflow:hidden}.saved-signature-template{color:var(--text-light);margin-top:2px;font-size:11px}.dynamic-row{align-items:center;gap:8px;margin-bottom:8px;display:flex}.dynamic-row .form-input{margin-bottom:0}.admin-table-container{background-color:var(--surface);border:1px solid var(--border-light);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);margin-top:16px;overflow:hidden}.admin-table{border-collapse:collapse;text-align:left;width:100%;font-size:13px}.admin-table th{background-color:var(--background);color:var(--dark-blue);border-bottom:1px solid var(--border-light);text-transform:uppercase;letter-spacing:.05em;padding:14px 18px;font-size:11px;font-weight:600}.admin-table td{border-bottom:1px solid var(--border-light);color:var(--text-secondary);padding:14px 18px}.admin-table tr:hover td{background-color:#00000003}.admin-table tr:last-child td{border-bottom:none}.admin-view-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.admin-settings-grid{grid-template-columns:1fr 1fr;gap:24px;display:grid}@media (max-width:768px){.admin-settings-grid{grid-template-columns:1fr}}.skeleton{background:linear-gradient(90deg, var(--border-light) 25%, var(--background) 50%, var(--border-light) 75%);border-radius:var(--radius-sm);background-size:200% 100%;animation:1.5s infinite loading}@keyframes loading{0%{background-position:200% 0}to{background-position:-200% 0}}.login-split-container{width:100%;min-height:100vh;display:flex}.login-form-side{background-color:var(--surface);box-shadow:var(--shadow-lg);z-index:2;flex:1;justify-content:center;align-items:center;padding:40px;display:flex}.login-form-wrapper{width:100%;max-width:400px}.login-logo-header{align-items:center;gap:12px;margin-bottom:32px;display:flex}.login-app-logo{object-fit:contain;border-radius:var(--radius-md);width:48px;height:48px}.login-app-logo-placeholder{background-color:var(--primary);border-radius:var(--radius-md);justify-content:center;align-items:center;width:48px;height:48px;display:flex}.login-app-name{color:var(--dark-blue);font-size:24px;font-weight:700}.login-title{color:var(--text-main);letter-spacing:-.02em;margin-bottom:8px;font-size:28px;font-weight:800}.login-subtitle{color:var(--text-secondary);margin-bottom:32px;font-size:14px}.login-form-element{flex-direction:column;gap:16px;display:flex}.login-error-box{color:var(--error);border-radius:var(--radius-md);background-color:#dc26260d;border:1px solid #dc262633;align-items:center;gap:8px;padding:12px;font-size:13px;font-weight:500;display:flex}.login-promo-side{z-index:1;flex:1.2;justify-content:center;align-items:center;padding:60px;transition:all .3s;display:flex;position:relative;overflow:hidden}.login-promo-wrapper{flex-direction:column;gap:24px;width:100%;max-width:520px;display:flex}.promo-title{color:inherit;letter-spacing:-.03em;font-size:36px;font-weight:800;line-height:1.15}.promo-subtitle{color:inherit;margin-bottom:8px;font-size:16px;line-height:1.6}.promo-features{flex-direction:column;gap:14px;display:flex}.promo-feature-item{align-items:center;gap:12px;font-size:14px;font-weight:600;display:flex}.feature-check{background-color:#fff3;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:22px;height:22px;display:flex}.promo-visual-container{border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background-color:#ffffff0d;border:1px solid #ffffff26;margin-top:32px;overflow:hidden;box-shadow:0 20px 40px #00000026}.promo-preview-image{object-fit:cover;width:100%;height:auto;max-height:350px;display:block}.promo-mockup-placeholder{justify-content:center;align-items:center;min-height:200px;padding:32px;display:flex}.mockup-email-card{border-radius:var(--radius-md);width:100%;max-width:380px;box-shadow:var(--shadow-lg);color:var(--text-main);border-left:4px solid var(--primary);background-color:#fff;padding:20px}.mockup-header{align-items:center;gap:12px;display:flex}.mockup-avatar{background-color:var(--primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;font-size:14px;font-weight:700;display:flex}.mockup-name{font-size:15px;font-weight:700}.mockup-role{color:var(--text-secondary);font-size:12px}.mockup-divider{background-color:var(--border-light);height:1px;margin:14px 0}.mockup-details{color:var(--text-secondary);flex-direction:column;gap:6px;font-size:11px;display:flex}.spinner{border:4px solid var(--border-light);border-top-color:var(--primary);border-radius:50%;width:40px;height:40px;animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width:768px){.login-split-container{flex-direction:column-reverse}.login-promo-side{flex:none;padding:40px 24px}.promo-title{font-size:24px}.promo-subtitle{font-size:13px}.promo-visual-container{display:none}.login-form-side{padding:40px 24px}}