/* Modern CSS Variables */
        :root {
            --primary-50: #fef2f2;
            --primary-100: #fee2e2;
            --primary-200: #fecaca;
            --primary-300: #fca5a5;
            --primary-400: #f87171;
            --primary-500: #ef4444;
            --primary-600: #dc2626;
            --primary-700: #b91c1c;
            --primary-800: #991b1b;
            --primary-900: #7f1d1d;
            --primary-main: #FF0000;
            --primary-light: #FF3333;
            --primary-dark: #CC0000;
            
            --gray-50: #f9fafb;
            --gray-100: #f3f4f6;
            --gray-200: #e5e7eb;
            --gray-300: #d1d5db;
            --gray-400: #9ca3af;
            --gray-500: #6b7280;
            --gray-600: #4b5563;
            --gray-700: #374151;
            --gray-800: #1f2937;
            --gray-900: #111827;
            
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --border-radius-sm: 6px;
            --border-radius: 12px;
            --border-radius-lg: 16px;
            --border-radius-xl: 20px;
            
            --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
            --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
            --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
            --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
            --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
            --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
            
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-family);
            background: linear-gradient(135deg, 
                var(--primary-main) 0%, 
                var(--primary-dark) 50%, 
                #990000 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 2px;
            position: relative;
            overflow: hidden;
        }

        /* Animated background elements */
        body::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 50%);
            animation: rotate 20s linear infinite;
            pointer-events: none;
        }

        body::after {
            content: '';
            position: absolute;
            top: 20%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
            border-radius: 50%;
            animation: float 6s ease-in-out infinite;
            pointer-events: none;
        }

        @keyframes rotate {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
        }

        /* Main Container */
        .login-container {
            position: relative;
            z-index: 10;
            width: 100%;
            max-width: 480px;
        }

        /* Logo Container - More Modern */
        .logo-container {
            text-align: center;
            margin-bottom: 1.5rem;
            animation: slideDown 0.8s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .logo-wrapper {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 80px;
            height: 80px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(20px);
            border-radius: 24px;
            margin-bottom: 1.5rem;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: var(--transition);
        }

        .logo-wrapper:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        .logo {
            display: flex;
            gap: 6px;
            align-items: center;
        }

        .logo-oval {
            width: 8px;
            height: 28px;
            background: linear-gradient(180deg, #ffffff 0%, rgba(255,255,255,0.8) 100%);
            border-radius: 50px;
            animation: pulse 2s ease-in-out infinite;
        }

        .logo-oval:nth-child(2) {
            animation-delay: 0.2s;
            height: 32px;
        }

        .logo-oval:nth-child(3) {
            animation-delay: 0.4s;
            height: 28px;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.6; }
        }

        .logo-title {
            color: white;
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: -0.025em;
            text-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }

        .logo-subtitle {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.875rem;
            font-weight: 400;
            margin-top: 0.25rem;
            letter-spacing: 0.05em;
        }

        /* Login Card - Glassmorphism Effect */
        .login-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 3rem 2.5rem;
            border-radius: var(--border-radius-xl);
            box-shadow: var(--shadow-2xl);
            position: relative;
            overflow: hidden;
            animation: slideUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .login-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, 
                var(--primary-main) 0%, 
                var(--primary-light) 50%,
                var(--primary-main) 100%);
            border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
        }

        .login-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--gray-900);
            text-align: center;
            margin-bottom: 0.5rem;
            letter-spacing: -0.025em;
            background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-700) 100%);
            background-clip: text;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .login-subtitle {
            text-align: center;
            color: var(--gray-500);
            font-size: 0.875rem;
            margin-bottom: 2.5rem;
            font-weight: 400;
        }

        /* Form Styles - Ultra Modern */
        .form-group {
            margin-bottom: 1.75rem;
            position: relative;
        }

        .form-label {
            display: block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--gray-700);
            margin-bottom: 0.75rem;
            letter-spacing: 0.025em;
        }

        .form-input-wrapper {
            position: relative;
            group: true;
        }

        .form-input {
            width: 100%;
            padding: 1rem 1.25rem 1rem 3rem;
            border: 2px solid var(--gray-200);
            border-radius: var(--border-radius);
            font-size: 0.9375rem;
            font-family: var(--font-family);
            font-weight: 400;
            background-color: white;
            transition: var(--transition);
            color: var(--gray-900);
        }

        .form-input::placeholder {
            color: var(--gray-400);
            font-weight: 400;
        }

        .form-input:focus {
            outline: none;
            border-color: var(--primary-main);
            background-color: white;
            box-shadow: 0 0 0 4px rgba(255, 0, 0, 0.1);
            transform: translateY(-1px);
        }

        .form-input:hover:not(:focus) {
            border-color: var(--gray-300);
        }

        .form-input.error {
            border-color: var(--primary-600);
            background-color: var(--primary-50);
            animation: shake 0.3s ease-in-out;
        }

        @keyframes shake {
            0%, 100% { transform: translateX(0); }
            25% { transform: translateX(-4px); }
            75% { transform: translateX(4px); }
        }

        .input-icon {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--gray-400);
            width: 20px;
            height: 20px;
            transition: var(--transition-fast);
        }

        .form-input:focus + .input-icon,
        .form-input:not(:placeholder-shown) + .input-icon {
            color: var(--primary-main);
            transform: translateY(-50%) scale(1.1);
        }

        .password-toggle {
            position: absolute;
            right: 1rem;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: var(--gray-400);
            cursor: pointer;
            padding: 0.5rem;
            border-radius: var(--border-radius-sm);
            transition: var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .password-toggle:hover {
            color: var(--primary-main);
            background-color: var(--gray-100);
            transform: translateY(-50%) scale(1.1);
        }

        /* Error Messages */
        .error-message {
            background: linear-gradient(135deg, var(--primary-50) 0%, rgba(255, 0, 0, 0.05) 100%);
            border: 1px solid var(--primary-200);
            color: var(--primary-700);
            padding: 1rem 1.25rem;
            border-radius: var(--border-radius);
            font-size: 0.875rem;
            font-weight: 500;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            animation: slideIn 0.3s ease-out;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .field-error {
            color: var(--primary-600);
            font-size: 0.75rem;
            font-weight: 500;
            margin-top: 0.5rem;
            opacity: 0;
            transform: translateY(-4px);
            transition: var(--transition-fast);
        }

        .field-error:not(:empty) {
            opacity: 1;
            transform: translateY(0);
        }

        /* Submit Button - Premium Design */
        .submit-button {
            width: 100%;
            background: linear-gradient(135deg, 
                var(--primary-main) 0%, 
                var(--primary-light) 50%, 
                var(--primary-main) 100%);
            color: white;
            border: none;
            padding: 1.125rem 2rem;
            border-radius: var(--border-radius);
            font-size: 0.9375rem;
            font-weight: 600;
            font-family: var(--font-family);
            cursor: pointer;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-md);
            letter-spacing: 0.025em;
        }

        .submit-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, 
                transparent 0%, 
                rgba(255,255,255,0.2) 50%, 
                transparent 100%);
            transition: var(--transition);
        }

        .submit-button:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-xl);
            background: linear-gradient(135deg, 
                var(--primary-light) 0%, 
                var(--primary-main) 50%, 
                var(--primary-dark) 100%);
        }

        .submit-button:hover::before {
            left: 100%;
        }

        .submit-button:active {
            transform: translateY(0);
            box-shadow: var(--shadow-md);
        }

        .submit-button:disabled {
            opacity: 0.7;
            cursor: not-allowed;
            transform: none;
        }

        .submit-button .loading-spinner {
            display: none;
            width: 18px;
            height: 18px;
            border: 2px solid transparent;
            border-top: 2px solid currentColor;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        .submit-button.loading .loading-spinner {
            display: inline-block;
        }

        .submit-button.loading .button-text {
            display: none;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        /* Responsive Design */
        @media (max-width: 640px) {
            body {
                padding: 16px;
            }
            
            .login-card {
                padding: 2.5rem 2rem;
            }
            
            .logo-title {
                font-size: 1.5rem;
            }
            
            .login-title {
                font-size: 1.75rem;
            }

            .logo-wrapper {
                width: 64px;
                height: 64px;
                border-radius: 18px;
            }
        }

        @media (max-width: 480px) {
            .login-container {
                max-width: 100%;
            }
            
            .logo-container {
                margin-bottom: 2rem;
            }
            
            .login-card {
                padding: 2rem 1.5rem;
            }
        }

        /* Enhanced Animations */
        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(40px) scale(0.95);
            }
            to {
                opacity: 1;
                transform: translateY(0) scale(1);
            }
        }

        /* Focus states for accessibility */
        .submit-button:focus-visible,
        .password-toggle:focus-visible,
        .form-input:focus-visible {
            outline: 2px solid var(--primary-main);
            outline-offset: 2px;
        }

        /* Loading state improvements */
        .submit-button.loading {
            background: linear-gradient(135deg, 
                var(--gray-400) 0%, 
                var(--gray-500) 100%);
        }

        /* Modern micro-interactions */
        .form-group {
            transition: var(--transition);
        }

        .form-group:focus-within {
            transform: scale(1.02);
        }