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

        body {
            font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            overflow-x: hidden;
        }

        .login-container {
            display: flex;
            min-height: 100vh;
            position: relative;
            align-items: stretch;
        }

        /* Arka plan şekilleri - Animasyonsız */
        .background-shapes {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 1;
        }

        .shape {
            position: absolute;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
        }

        .shape-1 {
            width: 80px;
            height: 80px;
            top: 20%;
            left: 10%;
        }

        .shape-2 {
            width: 120px;
            height: 120px;
            top: 60%;
            left: 80%;
        }

        .shape-3 {
            width: 60px;
            height: 60px;
            top: 80%;
            left: 20%;
        }

        /* Sol panel - Daha ferah ve yayılmış */
        .info-panel {
            flex: 1;
            background: linear-gradient(135deg, 
                rgba(102, 126, 234, 0.15) 0%, 
                rgba(118, 75, 162, 0.12) 50%,
                rgba(240, 147, 251, 0.08) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 80px 60px;
            position: fixed;
            left: 0;
            top: 0;
            height: 100vh;
            width: 65%;
        }

        .info-content {
            max-width: 520px;
            color: white;
            text-align: left;
            width: 100%;
        }

        .info-content h2 {
            font-size: 42px;
            font-weight: 800;
            margin-bottom: 24px;
            line-height: 1.1;
            background: linear-gradient(135deg, #ffffff 0%, #f0f3ff 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .info-subtitle {
            font-size: 18px;
            opacity: 0.9;
            margin-bottom: 50px;
            font-weight: 400;
            line-height: 1.6;
        }

        .info-features {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
        }

        .info-feature {
            text-align: left;
            display: flex;
            align-items: flex-start;
            gap: 20px;
        }

        .feature-icon {
            font-size: 32px;
            margin-bottom: 0;
            background: rgba(255, 255, 255, 0.15);
            padding: 16px;
            border-radius: 16px;
            min-width: 64px;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .feature-content h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #ffffff;
        }

        .feature-content p {
            font-size: 15px;
            opacity: 0.85;
            line-height: 1.6;
            margin: 0;
        }

        /* Ana giriş kartı - Start hizalı */
        .login-card {
            flex: 1;
            max-width: none;
            margin: 0;
            margin-left: 65%;
            width: 35%;
            background: rgba(255, 255, 255, 0.98);
            border-radius: 0;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
            padding: 50px 35px 40px 35px;
            position: relative;
            z-index: 10;
            height: 100vh;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
        }

        /* Logo ve başlık - Minimal boşluk */
        .login-header {
            text-align: center;
            margin-bottom: 22px;
            flex-shrink: 0;
        }

        .logo-container .logo {
            font-size: 40px;
            margin-bottom: 4px;
        }

        .logo-container h1 {
            font-size: 24px;
            font-weight: 700;
            background: linear-gradient(135deg, #667eea, #764ba2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 2px;
        }

        .logo-container p {
            color: #6c757d;
            font-size: 14px;
            font-weight: 500;
        }

        /* Form stilleri - Label'sız ve start hizalı */
        .login-form {
            display: flex;
            flex-direction: column;
            gap: 22px;
            flex: 1;
            justify-content: flex-start;
        }

        .form-group {
            position: relative;
        }

        .form-group input {
            width: 100%;
            padding: 14px 45px 14px 14px;
            border: 2px solid #e9ecef;
            border-radius: 0;
            font-size: 15px;
            transition: border-color 0.2s ease;
            background: #fff;
            color: #2c3e50;
        }

        .form-group input:focus {
            outline: none;
            border-color: #667eea;
        }

        .input-icon {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 16px;
            pointer-events: none;
        }

        /* Giriş butonu - Kompakt */
        .login-btn {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            border: none;
            padding: 15px 20px;
            border-radius: 0;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s ease, transform 0.1s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin-top: 12px;
        }

        .login-btn:hover {
            background: linear-gradient(135deg, #5a6fd8, #6a42a0);
            transform: translateY(-1px);
        }

        .login-btn:active {
            transform: translateY(0);
        }

        /* Alt bilgi - Kompakt */
        .login-footer {
            text-align: center;
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px solid #e9ecef;
            flex-shrink: 0;
        }

        .login-footer p {
            color: #6c757d;
            font-size: 12px;
            margin-bottom: 12px;
        }

        .features {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .feature {
            background: #f8f9fa;
            padding: 6px 10px;
            border-radius: 0;
            font-size: 11px;
            color: #495057;
            font-weight: 500;
        }

        @media (max-width: 1200px) {
            .info-panel {
                width: 60%;
                padding: 60px 40px;
            }
            
            .login-card {
                margin-left: 60%;
                width: 40%;
                padding: 45px 30px 35px 30px;
            }
            
            .info-content h2 {
                font-size: 36px;
            }
            
            .info-features {
                gap: 32px;
            }
        }

        @media (max-width: 1024px) {
            .info-panel {
                display: none;
            }
            
            .login-container {
                justify-content: stretch;
                align-items: stretch;
                padding: 0;
            }
            
            .login-card {
                max-width: none;
                margin: 0;
                margin-left: 0;
                width: 100%;
                height: 100vh;
                padding: 60px 40px 50px 40px;
                justify-content: flex-start;
            }
            
            .login-header {
                margin-bottom: 28px;
            }
            
            .logo-container .logo {
                font-size: 48px;
                margin-bottom: 6px;
            }
            
            .logo-container h1 {
                font-size: 28px;
                margin-bottom: 3px;
            }
            
            .logo-container p {
                font-size: 16px;
            }
            
            .login-form {
                gap: 24px;
                justify-content: flex-start;
            }
            
            .form-group input {
                padding: 16px 50px 16px 16px;
                font-size: 16px;
            }
            
            .login-btn {
                padding: 18px 24px;
                font-size: 16px;
            }
        }

        @media (max-width: 768px) {
            .login-card {
                padding: 50px 30px 40px 30px;
                margin: 0;
                border-radius: 0;
                min-height: 100vh;
            }
            
            .login-header {
                margin-bottom: 28px;
            }
            
            .logo-container .logo {
                font-size: 40px;
                margin-bottom: 3px;
            }
            
            .logo-container h1 {
                font-size: 24px;
                margin-bottom: 1px;
            }
            
            .message {
                left: 30px;
                right: 30px;
            }
        }

        @media (max-width: 480px) {
            .login-card {
                padding: 40px 25px 30px 25px;
                margin: 0;
                min-height: 100vh;
            }
            
            .login-header {
                margin-bottom: 26px;
            }
            
            .logo-container .logo {
                font-size: 36px;
                margin-bottom: 2px;
            }
            
            .logo-container h1 {
                font-size: 22px;
                margin-bottom: 1px;
            }
            
            .form-group input {
                padding: 14px 45px 14px 14px;
                font-size: 16px;
            }
            
            .login-btn {
                padding: 16px 20px;
                font-size: 15px;
            }
            
            .message {
                left: 25px;
                right: 25px;
            }
        }

        /* Sadece gerekli animasyonlar */
        .login-btn.loading .btn-icon {
            animation: spin 1s linear infinite;
        }

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

        /* Mesaj stilleri - Fixed positioning */
        .message {
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            text-align: center;
            position: absolute;
            left: 40px;
            right: 40px;
            top: 20px;
            z-index: 1000;
        }

        .error-message {
            background: linear-gradient(135deg, #ff6b6b, #ee5a52);
            color: white;
        }

        .success-message {
            background: linear-gradient(135deg, #51cf66, #40c057);
            color: white;
        }

        .field-error {
            color: #ff6b6b;
            font-size: 12px;
            margin-top: 5px;
        }

        .login-btn:disabled {
            cursor: not-allowed;
            opacity: 0.7;
        }