:root{--primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);--accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);--success-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);--warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);--bg-primary: #0f0f1e;--bg-secondary: #1a1a2e;--bg-tertiary: #16213e;--bg-card: rgba(26, 26, 46, .6);--bg-glass: rgba(255, 255, 255, .05);--text-primary: #ffffff;--text-secondary: #a0a0b8;--text-muted: #6b6b8a;--border-color: rgba(255, 255, 255, .1);--border-hover: rgba(255, 255, 255, .2);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 4px 16px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .4);--shadow-glow: 0 0 20px rgba(102, 126, 234, .3);--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--transition-fast: .15s ease;--transition-base: .25s ease;--transition-slow: .35s ease;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden;min-height:100vh}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 20% 20%,rgba(102,126,234,.15) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(118,75,162,.15) 0%,transparent 50%);pointer-events:none;z-index:0}.sidebar{position:fixed;left:0;top:0;width:280px;height:100vh;background:var(--bg-secondary);border-right:1px solid var(--border-color);padding:var(--spacing-lg);z-index:100;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.sidebar-header{margin-bottom:var(--spacing-xl)}.logo{display:flex;align-items:center;gap:var(--spacing-sm);font-size:1.25rem;font-weight:700;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav-menu{list-style:none;display:flex;flex-direction:column;gap:var(--spacing-xs)}.nav-item{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-base);position:relative;overflow:hidden}.nav-item:before{content:"";position:absolute;left:0;top:0;width:100%;height:100%;background:var(--primary-gradient);opacity:0;transition:opacity var(--transition-base);z-index:-1}.nav-item:hover{color:var(--text-primary);transform:translate(4px)}.nav-item:hover:before{opacity:.1}.nav-item.active{color:var(--text-primary);background:var(--bg-glass);border:1px solid var(--border-hover)}.nav-item.active:before{opacity:.15}.nav-item svg{flex-shrink:0}.sidebar-footer{margin-top:auto;padding-top:var(--spacing-lg);border-top:1px solid var(--border-color)}.logout-btn{width:100%;background:none;border:none;color:var(--text-secondary);cursor:pointer;font-family:var(--font-family);font-size:.95rem}.logout-btn:hover{color:#f5576c}.logout-btn:hover:before{background:linear-gradient(135deg,#f093fb,#f5576c);opacity:.1}.main-content{margin-left:280px;padding:var(--spacing-xl);position:relative;z-index:1;min-height:100vh}.page{animation:fadeIn var(--transition-base)}.page.active{display:block}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-xl)}.page-header h1{font-size:2.5rem;font-weight:700;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--spacing-xs)}.subtitle{color:var(--text-secondary);font-size:1rem}.btn{display:inline-flex;align-items:center;gap:var(--spacing-xs);padding:.75rem 1.5rem;border:none;border-radius:var(--radius-md);font-family:var(--font-family);font-size:.95rem;font-weight:600;cursor:pointer;transition:all var(--transition-base);position:relative;overflow:hidden}.btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#fff3;transform:translate(-50%,-50%);transition:width var(--transition-slow),height var(--transition-slow)}.btn:hover:before{width:300px;height:300px}.btn-primary{background:var(--primary-gradient);color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{box-shadow:var(--shadow-glow);transform:translateY(-2px)}.btn-large{padding:1rem 2rem;font-size:1.05rem;width:100%;justify-content:center}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.stat-card{background:var(--bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-lg);display:flex;align-items:center;gap:var(--spacing-md);transition:all var(--transition-base);position:relative;overflow:hidden}.stat-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,rgba(255,255,255,.05) 0%,transparent 100%);opacity:0;transition:opacity var(--transition-base)}.stat-card:hover{transform:translateY(-4px);border-color:var(--border-hover);box-shadow:var(--shadow-lg)}.stat-card:hover:before{opacity:1}.stat-icon{width:60px;height:60px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:var(--shadow-md)}.stat-info{flex:1}.stat-label{color:var(--text-secondary);font-size:.875rem;margin-bottom:.25rem}.stat-value{font-size:2rem;font-weight:700;color:var(--text-primary)}.table-container{background:var(--bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden}.data-table{width:100%;border-collapse:collapse}.data-table thead{background:var(--bg-glass);border-bottom:1px solid var(--border-color)}.data-table th{padding:var(--spacing-md);text-align:left;font-weight:600;color:var(--text-secondary);font-size:.875rem;text-transform:uppercase;letter-spacing:.5px}.data-table td{padding:var(--spacing-md);border-bottom:1px solid var(--border-color);color:var(--text-primary)}.data-table tbody tr{transition:background var(--transition-fast)}.data-table tbody tr:hover{background:var(--bg-glass)}.data-table tbody tr:last-child td{border-bottom:none}.status-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.375rem .875rem;border-radius:var(--radius-sm);font-size:.875rem;font-weight:600}.status-badge:before{content:"";width:8px;height:8px;border-radius:50%;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.status-ongoing{background:#4facfe26;color:#4facfe;border:1px solid rgba(79,172,254,.3)}.status-ongoing:before{background:#4facfe}.status-completed{background:#43e97b26;color:#43e97b;border:1px solid rgba(67,233,123,.3)}.status-completed:before{background:#43e97b}.status-interrupted{background:#f5576c26;color:#f5576c;border:1px solid rgba(245,87,108,.3)}.status-interrupted:before{background:#f5576c}.action-btn{background:none;border:1px solid var(--border-color);color:var(--text-secondary);padding:.5rem;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);display:inline-flex;align-items:center;justify-content:center}.action-btn:hover{border-color:var(--border-hover);color:var(--text-primary);background:var(--bg-glass)}.split-layout{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-xl)}.split-left,.split-right{min-height:600px}.form-card,.preview-card{background:var(--bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-xl)}.preview-card h3{font-size:1.25rem;margin-bottom:var(--spacing-lg);color:var(--text-primary)}.form-group{margin-bottom:var(--spacing-lg)}.form-group label{display:block;margin-bottom:var(--spacing-xs);color:var(--text-secondary);font-weight:500;font-size:.95rem}.form-group input,.form-group select{width:100%;padding:.875rem 1rem;background:var(--bg-glass);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-family);font-size:.95rem;transition:all var(--transition-base)}.form-group input:focus,.form-group select:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.form-group input::placeholder{color:var(--text-muted)}.form-hint{display:block;margin-top:var(--spacing-xs);color:var(--text-muted);font-size:.875rem}.form-alert{display:flex;align-items:flex-start;gap:var(--spacing-sm);padding:var(--spacing-md);background:#fa709a1a;border:1px solid rgba(250,112,154,.3);border-radius:var(--radius-md);color:#e0e0e0;margin-bottom:var(--spacing-lg);font-size:.9rem;line-height:1.5}.form-alert svg{flex-shrink:0;color:#fa709a;margin-top:2px}.custom-select-wrapper{position:relative}.custom-select{position:relative;width:100%}.custom-select-display{display:flex;align-items:center;justify-content:space-between;width:100%;padding:.875rem 1rem;background:var(--bg-glass);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-family);font-size:.95rem;cursor:pointer;transition:all var(--transition-base)}.custom-select-display:hover{border-color:var(--border-hover)}.custom-select-display.active{border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.custom-select-display svg{color:var(--text-secondary);transition:transform var(--transition-base);pointer-events:none}.custom-select-display.active svg{transform:rotate(180deg);color:#667eea}.select-placeholder{color:var(--text-muted)}.select-value{color:var(--text-primary);font-weight:500}.custom-select-display.selected .select-placeholder{display:none}.custom-select-dropdown{position:absolute;top:calc(100% + .5rem);left:0;right:0;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:1000;max-height:400px;overflow-y:auto;animation:slideDown .15s ease-out}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.custom-select-options{padding:.5rem 0}.custom-select-option{padding:.875rem 1rem;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);display:flex;align-items:center;justify-content:space-between}.custom-select-option:hover{background:#667eea1a;color:var(--text-primary)}.custom-select-option.selected{background:#667eea33;color:#667eea;font-weight:600}.custom-select-option.selected:after{content:"✓";font-weight:700;color:#667eea}.custom-select-dropdown::-webkit-scrollbar{width:8px}.custom-select-dropdown::-webkit-scrollbar-track{background:#ffffff0d;border-radius:4px}.custom-select-dropdown::-webkit-scrollbar-thumb{background:#667eea4d;border-radius:4px;transition:background var(--transition-fast)}.custom-select-dropdown::-webkit-scrollbar-thumb:hover{background:#667eea99}.form-divider{height:1px;background:var(--border-color);margin:var(--spacing-xl) 0}.form-section-title{font-size:1.125rem;margin-bottom:var(--spacing-lg);color:var(--text-primary)}.password-input-wrapper{position:relative;display:flex;align-items:center}.password-input-wrapper input{width:100%;padding-right:2.5rem}.toggle-password-btn{position:absolute;right:.875rem;background:none;border:none;cursor:pointer;color:var(--text-secondary);padding:.5rem;display:flex;align-items:center;justify-content:center;transition:color var(--transition-base);z-index:1}.toggle-password-btn:hover{color:var(--text-primary)}.toggle-password-btn:active{transform:scale(.95)}.file-upload-area{position:relative;border:2px dashed var(--border-color);border-radius:var(--radius-md);padding:var(--spacing-xl);text-align:center;transition:all var(--transition-base);cursor:pointer}.file-upload-area:hover{border-color:var(--border-hover);background:var(--bg-glass)}.upload-placeholder svg{color:var(--text-muted);margin-bottom:var(--spacing-sm)}.upload-placeholder p{color:var(--text-primary);font-weight:500;margin-bottom:var(--spacing-xs)}.upload-placeholder span{color:var(--text-muted);font-size:.875rem}.upload-preview{position:relative}.upload-preview img,.upload-preview video{max-width:100%;max-height:300px;border-radius:var(--radius-md)}.remove-media-btn,.remove-file-btn{position:absolute;top:var(--spacing-sm);right:var(--spacing-sm);width:32px;height:32px;border-radius:50%;background:#f5576ce6;color:#fff;border:none;font-size:1.5rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.remove-media-btn:hover,.remove-file-btn:hover{background:#f5576c;transform:scale(1.1)}.file-selected{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md);background:var(--bg-glass);border-radius:var(--radius-md);position:relative}.file-selected svg{color:#43e97b;flex-shrink:0}.file-selected span{flex:1;color:var(--text-primary)}.whatsapp-preview{background:#0d1418;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}.whatsapp-header{background:#202c33;padding:var(--spacing-md);display:flex;align-items:center;gap:var(--spacing-sm);border-bottom:1px solid #2a3942}.whatsapp-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2)}.whatsapp-info{flex:1}.whatsapp-name{color:#e9edef;font-weight:500;font-size:.95rem}.whatsapp-status{color:#8696a0;font-size:.8rem}.whatsapp-chat{padding:var(--spacing-lg);min-height:400px;background-image:repeating-linear-gradient(45deg,transparent,transparent 10px,rgba(255,255,255,.01) 10px,rgba(255,255,255,.01) 20px)}.whatsapp-message{background:#005c4b;border-radius:var(--radius-md);padding:var(--spacing-sm);max-width:80%;margin-left:auto;position:relative;box-shadow:0 1px 2px #0000004d}.message-media{margin-bottom:var(--spacing-xs);border-radius:var(--radius-sm);overflow:hidden}.message-media img,.message-media video{width:100%;display:block}.message-text{color:#e9edef;font-size:.9rem;line-height:1.5;word-wrap:break-word}.message-time{text-align:right;color:#8696a0;font-size:.7rem;margin-top:.25rem}.settings-container{max-width:600px}@media(max-width:1200px){.split-layout{grid-template-columns:1fr}.split-right{order:-1}}@media(max-width:768px){.sidebar{width:80px;padding:var(--spacing-md)}.sidebar-header .logo span,.nav-item span{display:none}.main-content{margin-left:80px;padding:var(--spacing-md)}.page-header{flex-direction:column;align-items:flex-start;gap:var(--spacing-md)}.page-header h1{font-size:2rem}.stats-grid{grid-template-columns:1fr}.table-container{overflow-x:auto}}.hidden{display:none!important}.text-center{text-align:center}.mt-lg{margin-top:var(--spacing-lg)}.mb-lg{margin-bottom:var(--spacing-lg)}.custom-modal{position:fixed;top:0;left:0;width:100%;height:100%;z-index:9999;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity var(--transition-base)}.custom-modal.show{opacity:1}.modal-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#000000b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.modal-content{position:relative;background:var(--bg-card);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:var(--spacing-xl);max-width:400px;width:90%;text-align:center;box-shadow:var(--shadow-lg);transform:scale(.9);transition:transform var(--transition-base)}.custom-modal.show .modal-content{transform:scale(1);animation:modalBounce .5s ease-out}@keyframes modalBounce{0%{transform:scale(.8)}50%{transform:scale(1.05)}to{transform:scale(1)}}.modal-icon{margin-bottom:var(--spacing-lg);animation:iconPulse 2s ease-in-out infinite}@keyframes iconPulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.modal-content.success .modal-icon{color:#43e97b}.modal-content.error .modal-icon{color:#f5576c}.modal-title{font-size:1.75rem;font-weight:700;margin-bottom:var(--spacing-sm);color:var(--text-primary)}.modal-content.success .modal-title{background:linear-gradient(135deg,#43e97b,#38f9d7);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.modal-content.error .modal-title{background:linear-gradient(135deg,#f093fb,#f5576c);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.modal-content.warning .modal-icon{color:#fee140}.modal-content.warning .modal-title{background:linear-gradient(135deg,#fa709a,#fee140);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.modal-message{color:var(--text-secondary);font-size:1rem;line-height:1.6;margin-bottom:var(--spacing-xl)}.modal-btn{background:var(--primary-gradient);color:#fff;border:none;padding:.875rem 2.5rem;border-radius:var(--radius-md);font-family:var(--font-family);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition-base);box-shadow:var(--shadow-md)}.modal-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}.modal-content.success .modal-btn{background:linear-gradient(135deg,#43e97b,#38f9d7)}.modal-content.error .modal-btn{background:linear-gradient(135deg,#f093fb,#f5576c)}.modal-content.warning .modal-btn{background:linear-gradient(135deg,#fa709a,#fee140)}.login-body{margin:0;padding:0;overflow:hidden;height:100vh}.login-container{display:grid;grid-template-columns:1fr 1fr;height:100vh;position:relative;z-index:1}.login-left{background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;padding:var(--spacing-xl);position:relative;overflow:hidden}.login-left:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.1) 0%,transparent 50%),radial-gradient(circle at 70% 70%,rgba(255,255,255,.05) 0%,transparent 50%);animation:rotate 30s linear infinite}@keyframes rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.login-branding{max-width:500px;text-align:center;position:relative;z-index:1}.logo-large{margin-bottom:var(--spacing-lg);animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.login-branding h1{font-size:3rem;font-weight:700;color:#fff;margin-bottom:var(--spacing-sm);text-shadow:0 2px 10px rgba(0,0,0,.2)}.tagline{font-size:1.25rem;color:#fffffff2;margin-bottom:var(--spacing-md);font-weight:500}.description{font-size:1rem;color:#ffffffd9;margin-bottom:var(--spacing-xl);line-height:1.6}.features-list{display:grid;gap:var(--spacing-md);text-align:left}.feature-item{display:flex;align-items:center;gap:var(--spacing-sm);color:#fff;font-size:.95rem;padding:var(--spacing-sm);background:#ffffff1a;border-radius:var(--radius-md);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all var(--transition-base)}.feature-item:hover{background:#ffffff26;transform:translate(5px)}.feature-item svg{flex-shrink:0}.login-right{background:var(--bg-primary);display:flex;align-items:center;justify-content:center;padding:var(--spacing-xl)}.login-form-container{width:100%;max-width:450px;animation:slideInRight .6s ease-out}@keyframes slideInRight{0%{opacity:0;transform:translate(30px)}to{opacity:1;transform:translate(0)}}.login-header{margin-bottom:var(--spacing-xl)}.login-header h2{font-size:2rem;font-weight:700;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--spacing-xs)}.login-header p{color:var(--text-secondary);font-size:.95rem}.login-form{display:flex;flex-direction:column;gap:var(--spacing-lg)}.login-form .form-group{margin-bottom:0}.input-with-icon{position:relative;display:flex;align-items:center}.input-with-icon svg:first-child{position:absolute;left:1rem;color:var(--text-muted);pointer-events:none;z-index:1}.input-with-icon input{padding-left:3rem;padding-right:3rem}.toggle-password{position:absolute;right:1rem;background:none;border:none;color:var(--text-muted);cursor:pointer;padding:.25rem;display:flex;align-items:center;justify-content:center;transition:color var(--transition-fast);z-index:1}.toggle-password:hover{color:var(--text-primary)}.form-options{display:flex;justify-content:space-between;align-items:center;margin-top:calc(var(--spacing-sm) * -1)}.checkbox-container{display:flex;align-items:center;gap:var(--spacing-xs);cursor:pointer;-webkit-user-select:none;user-select:none}.checkbox-container input[type=checkbox]{display:none}.checkmark{width:20px;height:20px;border:2px solid var(--border-color);border-radius:4px;display:flex;align-items:center;justify-content:center;transition:all var(--transition-base);position:relative}.checkmark:after{content:"";width:6px;height:10px;border:solid white;border-width:0 2px 2px 0;transform:rotate(45deg) scale(0);transition:transform var(--transition-base)}.checkbox-container input[type=checkbox]:checked+.checkmark{background:var(--primary-gradient);border-color:transparent}.checkbox-container input[type=checkbox]:checked+.checkmark:after{transform:rotate(45deg) scale(1)}.checkbox-label{color:var(--text-secondary);font-size:.9rem}.forgot-password{color:var(--text-secondary);font-size:.9rem;text-decoration:none;transition:color var(--transition-fast)}.forgot-password:hover{color:#667eea}.login-btn{margin-top:var(--spacing-md);display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);position:relative;overflow:hidden}.login-btn .btn-icon{transition:transform var(--transition-base)}.login-btn:hover .btn-icon{transform:translate(5px)}.login-btn.loading .btn-text{opacity:0}.login-btn.loading .btn-icon{display:none}.login-btn .spinner{display:none;position:absolute}.login-btn.loading .spinner{display:block;animation:spin 1s linear infinite}.login-footer{margin-top:var(--spacing-xl);text-align:center}.login-footer p{color:var(--text-secondary);font-size:.9rem}.signup-link{color:#667eea;text-decoration:none;font-weight:600;transition:color var(--transition-fast)}.signup-link:hover{color:#764ba2}.particles{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:0}.particle{position:absolute;width:4px;height:4px;background:#667eea4d;border-radius:50%;animation:float-particle 15s infinite}.particle:nth-child(1){left:10%;animation-delay:0s;animation-duration:12s}.particle:nth-child(2){left:30%;animation-delay:2s;animation-duration:15s}.particle:nth-child(3){left:50%;animation-delay:4s;animation-duration:18s}.particle:nth-child(4){left:70%;animation-delay:6s;animation-duration:14s}.particle:nth-child(5){left:90%;animation-delay:8s;animation-duration:16s}@keyframes float-particle{0%{transform:translateY(100vh) scale(0);opacity:0}10%{opacity:1}90%{opacity:1}to{transform:translateY(-100vh) scale(1);opacity:0}}.error-message{background:#f5576c1a;border:1px solid rgba(245,87,108,.3);color:#f5576c;padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);font-size:.9rem;display:none;align-items:center;gap:var(--spacing-sm);animation:shake .5s}.error-message.show{display:flex}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-10px)}75%{transform:translate(10px)}}@media(max-width:968px){.login-container{grid-template-columns:1fr}.login-left{display:none}.login-right{padding:var(--spacing-md)}}@media(max-width:480px){.login-header h2{font-size:1.75rem}.login-form-container{max-width:100%}}