* {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    
    body {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        min-height: 100vh;
        font-family: 'Inter', sans-serif;
    }
    
    .auth-wrapper {
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 20px;
    }
    
    .auth-container {
        display: flex;
        background: white;
        border-radius: 24px;
        box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
        overflow: hidden;
        max-width: 1000px;
        width: 100%;
        animation: slideUp 0.5s ease-out;
    }
    
    @keyframes slideUp {
        from {
            opacity: 0;
            transform: translateY(30px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .auth-left {
        flex: 1.2;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        padding: 60px 48px;
        color: white;
        display: flex;
        flex-direction: column;
        justify-content: center;
        position: relative;
        overflow: hidden;
    }
    
    .auth-left::before {
        content: '';
        position: absolute;
        top: -50%;
        left: -50%;
        width: 200%;
        height: 200%;
        background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
        animation: pulse 15s ease-in-out infinite;
    }
    
    @keyframes pulse {
        0%, 100% { transform: scale(1); }
        50% { transform: scale(1.1); }
    }
    
    .auth-brand {
        position: relative;
        z-index: 1;
    }
    
    .brand-logo {
        width: 80px;
        height: 80px;
        background: rgba(255, 255, 255, 0.2);
        backdrop-filter: blur(10px);
        border-radius: 20px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 32px;
        animation: float 3s ease-in-out infinite;
    }
    
    @keyframes float {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(-10px); }
    }
    
    .brand-logo i {
        font-size: 36px;
    }
    
    .auth-brand h1 {
        font-size: 36px;
        font-weight: 700;
        margin-bottom: 16px;
        line-height: 1.2;
    }
    
    .auth-brand p {
        opacity: 0.9;
        font-size: 16px;
        line-height: 1.7;
        margin-bottom: 16px;
    }
    
    .auth-features {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    
    .dc-profile-center {
        text-align: center;
        margin: 8px 0 16px;
        padding: 16px 20px;
        background: rgba(255,255,255,0.1);
        border-radius: 16px;
        backdrop-filter: blur(5px);
    }
    
    .dc-profile-center img {
        border-radius: 50%;
    }
    
    .feature-item {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 14px;
        opacity: 0.95;
        padding: 10px 14px;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        backdrop-filter: blur(5px);
    }
    
    .feature-item i {
        font-size: 18px;
        width: 20px;
        text-align: center;
    }
    
    .auth-right {
        flex: 1;
        padding: 40px 48px;
        display: flex;
        align-items: flex-start;
        justify-content: center;
        background: white;
    }
    
    .auth-form-wrapper {
        width: 100%;
        max-width: 400px;
    }
    
    .auth-form-wrapper h2 {
        font-size: 24px;
        font-weight: 700;
        color: #1e293b;
        margin-bottom: 6px;
    }
    
    .auth-subtitle {
        color: #64748b;
        font-size: 14px;
        margin-bottom: 24px;
    }
    
    .form-group {
        margin-bottom: 18px;
    }
    
    .form-label {
        display: block;
        font-size: 13px;
        font-weight: 500;
        color: #374151;
        margin-bottom: 8px;
    }
    
    .input-group {
        position: relative;
    }
    
    .input-group i.input-icon {
        position: absolute;
        left: 14px;
        top: 50%;
        transform: translateY(-50%);
        color: #9ca3af;
        font-size: 16px;
        transition: color 0.2s;
        pointer-events: none;
    }
    
    .input-group .form-control:focus ~ i.input-icon {
        color: #667eea;
    }
    
    .input-group .toggle-password {
        z-index: 10;
        position: absolute;
        right: 14px;
        left: auto;
        top: 50%;
        transform: translateY(-50%);
        cursor: pointer;
        color: #9ca3af;
    }
    
    .input-group .toggle-password:hover {
        color: #667eea;
    }
    
    .form-control {
        width: 100%;
        padding: 12px 44px 12px 44px;
        border: 2px solid #e5e7eb;
        border-radius: 10px;
        font-size: 14px;
        transition: all 0.3s;
    }
    
    .form-control:focus {
        outline: none;
        border-color: #667eea;
        box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    }
    
    .checkbox-label {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        font-size: 13px;
        color: #6b7280;
        cursor: pointer;
        line-height: 1.5;
        margin-bottom: 18px;
    }
    
    .checkbox-label input {
        width: 16px;
        height: 16px;
        margin-top: 2px;
        accent-color: #667eea;
        cursor: pointer;
        flex-shrink: 0;
    }
    
    .checkbox-label a {
        color: #667eea;
        text-decoration: none;
        font-weight: 500;
    }
    
    .checkbox-label a:hover {
        text-decoration: underline;
    }
    
    .btn-primary {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        border: none;
        padding: 14px 20px;
        border-radius: 10px;
        font-size: 15px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s;
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
    }
    
    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 15px -3px rgba(102, 126, 234, 0.4);
    }
    
    .auth-footer {
        text-align: center;
        margin-top: 20px;
        padding-top: 16px;
        border-top: 1px solid #e5e7eb;
    }
    
    .auth-footer p {
        font-size: 14px;
        color: #6b7280;
    }
    
    .auth-footer a {
        color: #667eea;
        text-decoration: none;
        font-weight: 600;
    }
    
    .auth-footer a:hover {
        text-decoration: underline;
    }
    
    .alert {
        padding: 12px 14px;
        border-radius: 10px;
        margin-bottom: 16px;
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 13px;
        animation: shake 0.5s ease-out;
    }
    
    @keyframes shake {
        0%, 100% { transform: translateX(0); }
        25% { transform: translateX(-5px); }
        75% { transform: translateX(5px); }
    }
    
    .alert-error {
        background: #fee2e2;
        color: #991b1b;
        border: 1px solid #fecaca;
    }
    
    .alert-success {
        background: #d1fae5;
        color: #065f46;
        border: 1px solid #a7f3d0;
    }
    
    .toast-container {
        position: fixed;
        top: 20px;
        right: 20px;
        z-index: 9999;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    
    .toast {
        min-width: 300px;
        max-width: 400px;
        padding: 16px 20px;
        border-radius: 12px;
        display: flex;
        align-items: flex-start;
        gap: 12px;
        box-shadow: 0 10px 40px rgba(0,0,0,0.2);
        animation: slideInRight 0.3s ease-out;
        background: white;
    }
    
    .toast.toast-success {
        border-left: 4px solid #10b981;
    }
    
    .toast.toast-error {
        border-left: 4px solid #ef4444;
    }
    
    .toast.toast-warning {
        border-left: 4px solid #f59e0b;
    }
    
    .toast.toast-info {
        border-left: 4px solid #3b82f6;
    }
    
    .toast-icon {
        font-size: 20px;
        flex-shrink: 0;
    }
    
    .toast-success .toast-icon { color: #10b981; }
    .toast-error .toast-icon { color: #ef4444; }
    .toast-warning .toast-icon { color: #f59e0b; }
    .toast-info .toast-icon { color: #3b82f6; }
    
    .toast-content {
        flex: 1;
    }
    
    .toast-title {
        font-weight: 600;
        font-size: 14px;
        color: #1e293b;
        margin-bottom: 2px;
    }
    
    .toast-message {
        font-size: 13px;
        color: #64748b;
        line-height: 1.4;
    }
    
    .toast-close {
        background: none;
        border: none;
        font-size: 18px;
        color: #94a3b8;
        cursor: pointer;
        padding: 0;
        line-height: 1;
        transition: color 0.2s;
    }
    
    .toast-close:hover {
        color: #64748b;
    }
    
    @keyframes slideInRight {
        from {
            opacity: 0;
            transform: translateX(100px);
        }
        to {
            opacity: 1;
            transform: translateX(0);
        }
    }
    
    @keyframes slideOutRight {
        from {
            opacity: 1;
            transform: translateX(0);
        }
        to {
            opacity: 0;
            transform: translateX(100px);
        }
    }
    
    .toast.hiding {
        animation: slideOutRight 0.3s ease-out forwards;
    }
    
    .password-hint {
        font-size: 11px;
        color: #9ca3af;
        margin-top: 6px;
        line-height: 1.4;
    }
    
    @media (max-width: 900px) {
        .auth-container {
            flex-direction: column;
            max-width: 480px;
        }
        
        .auth-left {
            padding: 40px 32px;
        }
        
        .auth-brand h1 {
            font-size: 28px;
        }
        
        .auth-right {
            padding: 40px 32px;
        }
        
        .dc-profile-center {
            margin: 4px 0 12px !important;
            padding: 12px !important;
        }
        .dc-profile-center img {
            width: 90px !important;
            height: 90px !important;
            margin-bottom: 10px !important;
        }
    }
    
    @media (max-width: 480px) {
        .auth-wrapper {
            padding: 0;
        }
        
        .auth-container {
            border-radius: 0;
            min-height: 100vh;
        }
        
        .brand-logo {
            width: 64px;
            height: 64px;
        }
        
        .brand-logo i {
            font-size: 28px;
        }
        
        .auth-features {
            display: none;
        }
        
        .auth-right {
            padding: 24px;
        }
        
        .dc-profile-center {
            margin: 4px 0 8px !important;
            padding: 10px !important;
        }
        .dc-profile-center img {
            width: 70px !important;
            height: 70px !important;
            margin-bottom: 8px !important;
        }
    }